From a47df626e6b6a066f63300a3ab77cea313c72a6a Mon Sep 17 00:00:00 2001 From: Joe Hendrix Date: Mon, 1 Dec 2025 09:52:08 -0800 Subject: [PATCH 01/68] Improve elab-time performance of Lean terms generated by DDM. (#221) This modifies the Lean expression generation for dialects to reduce time required to declaring dialects by roughly half. also generates auxilary definitions to reduce the size of the Lean expression for a Strata program. This has a slight performance improvement, but more importantly reduces the stack requirements when parsing large Strata programs. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/DDM/Integration/Lean.lean | 177 +--------- Strata/DDM/Integration/Lean/Gen.lean | 2 - Strata/DDM/Integration/Lean/HashCommands.lean | 153 +++++++-- Strata/DDM/Integration/Lean/Quote.lean | 303 ------------------ Strata/DDM/Integration/Lean/ToExpr.lean | 20 +- Strata/DDM/Util/Lean.lean | 11 +- Strata/Languages/Python/BoogiePrelude.lean | 1 - Strata/Languages/Python/PythonDialect.lean | 5 +- 8 files changed, 151 insertions(+), 521 deletions(-) delete mode 100644 Strata/DDM/Integration/Lean/Quote.lean diff --git a/Strata/DDM/Integration/Lean.lean b/Strata/DDM/Integration/Lean.lean index 58c0a1b586..8b400b78d2 100644 --- a/Strata/DDM/Integration/Lean.lean +++ b/Strata/DDM/Integration/Lean.lean @@ -5,179 +5,4 @@ -/ import Strata.DDM.Integration.Lean.Gen -import Strata.DDM.Integration.Lean.Quote -import Strata.DDM.Integration.Lean.ToExpr -import Strata.DDM.TaggedRegions - -open Lean -open Elab (throwIllFormedSyntax throwUnsupportedSyntax) -open Elab.Command (CommandElab CommandElabM elabCommand) -open Elab.Term (TermElab) -open Parser (InputContext TokenTable) -open System (FilePath) - -namespace Strata - -class HasInputContext (m : Type → Type _) [Functor m] where - getInputContext : m InputContext - getFileName : m FilePath := - (fun ctx => FilePath.mk ctx.fileName) <$> getInputContext - -export HasInputContext (getInputContext) - -instance : HasInputContext CommandElabM where - getInputContext := do - let ctx ← read - pure { - inputString := ctx.fileMap.source - fileName := ctx.fileName - fileMap := ctx.fileMap - } - getFileName := return (← read).fileName - -instance : HasInputContext CoreM where - getInputContext := do - let ctx ← read - pure { - inputString := ctx.fileMap.source - fileName := ctx.fileName - fileMap := ctx.fileMap - } - getFileName := return (← read).fileName - -declare_tagged_region command strataDialectCommand "#dialect" "#end" - -private def mkScopedName {m} [Monad m] [MonadError m] [MonadEnv m] [MonadResolveName m] (name : Name) : m (Ident × Name) := do - let scope ← getCurrNamespace - let fullName := scope ++ name - let env ← getEnv - if env.contains fullName then - throwError s!"Cannot define {name}: {fullName} already exists." - return (Lean.mkScopedIdent scope name, fullName) - -/-- -Create a new definition equal to the given term. --/ -private def elabDef (ident : Ident) (type : Term) (qdef : Term) : CommandElabM Unit := do - let cmd ← `(command| def $ident : $type := $qdef) - tryCatch (elabCommand cmd) fun e => - throwError m!"Definition of {ident} failed: {e.toMessageData}" - -private def quoteList : List Term → Term - | [] => mkCIdent ``List.nil - | (x::xs) => Syntax.mkCApp ``List.cons #[x, quoteList xs] - -/-- -Prepend the current namespace to the Lean name and convert to an identifier. --/ -private def mkAbsIdent (name : Lean.Name) : Ident := - let nameStr := toString name - .mk (.ident .none nameStr.toSubstring name [.decl name []]) - -/-- -Declare dialect and add to environment. --/ -def declareDialect (d : Dialect) : CommandElabM Unit := do - -- Identifier for dialect - let dialectName := Name.anonymous |>.str d.name - let (dialectIdent, dialectAbsName) ← mkScopedName dialectName - -- Identifier for dialect map - let (mapIdent, _) ← mkScopedName (Name.anonymous |>.str s!"{d.name}_map") - elabDef dialectIdent (mkAbsIdent ``Dialect) (quote d) - -- Add dialect to environment - modifyEnv fun env => - dialectExt.modifyState env (·.addDialect! d dialectAbsName (isNew := true)) - -- Create term to represent minimal DialectMap with dialect. - let s := (dialectExt.getState (←Lean.getEnv)) - let openDialects := s.loaded.dialects.importedDialects! d.name |>.toList - let quoteD (d : Dialect) : CommandElabM Term := do - let some name := s.nameMap[d.name]? - | throwError s!"Unknown dialect {d.name}" - return mkAbsIdent name - let ds ← openDialects.mapM quoteD - let mapTerm : Term := Syntax.mkCApp ``DialectMap.ofList! #[quoteList ds] - elabDef mapIdent (mkAbsIdent ``DialectMap) mapTerm - -@[command_elab strataDialectCommand] -def strataDialectImpl: Lean.Elab.Command.CommandElab := fun (stx : Syntax) => do - let .atom i v := stx[1] - | throwError s!"Bad {stx[1]}" - let .original _ p _ e := i - | throwError s!"Expected input context" - let inputCtx ← getInputContext - let loaded := (dialectExt.getState (←Lean.getEnv)).loaded - let (_, d, s) ← Strata.Elab.elabDialect {} loaded inputCtx p e - if !s.errors.isEmpty then - for e in s.errors do - logMessage e - return - -- Add dialect to command environment - declareDialect d - -declare_tagged_region term strataProgram "#strata" "#end" - -private def listToExpr (level : Level) (type : Lean.Expr) (es : List Lean.Expr) : Lean.Expr := - let nilFn := mkApp (mkConst ``List.nil [level]) type - let consFn := mkApp (mkConst ``List.cons [level]) type - let rec aux : List Lean.Expr → Lean.Expr - | [] => nilFn - | a::as => mkApp2 consFn a (aux as) - aux es - -@[term_elab strataProgram] -def strataProgramImpl : TermElab := fun stx tp => do - let .atom i v := stx[1] - | throwError s!"Bad {stx[1]}" - let .original _ p _ e := i - | throwError s!"Expected input context" - let inputCtx ← (getInputContext : CoreM _) - let s := (dialectExt.getState (←Lean.getEnv)) - let leanEnv ← Lean.mkEmptyEnvironment 0 - match Elab.elabProgram s.loaded leanEnv inputCtx p e with - | .ok pgm => - -- Get Lean name for dialect - let some (.str name root) := s.nameMap[pgm.dialect]? - | throwError s!"Unknown dialect {pgm.dialect}" - return astExpr! Program.create - (mkConst (name |>.str s!"{root}_map")) - (toExpr pgm.dialect) - (toExpr pgm.commands) - | .error errors => - for e in errors do - logMessage e - return mkApp2 (mkConst ``sorryAx [1]) (toTypeExpr Program) (toExpr true) - -syntax (name := loadDialectCommand) "#load_dialect" str : command - -def resolveLeanRelPath {m} [Monad m] [HasInputContext m] [MonadError m] (path : FilePath) : m FilePath := do - if path.isAbsolute then - -- TODO: Add warning about absolute paths - pure path - else - let leanPath ← HasInputContext.getFileName - let .some leanDir := leanPath.parent - | throwError "Current file {leanPath} does not have a parent." - pure <| leanDir / path - -@[command_elab loadDialectCommand] -def loadDialectImpl: CommandElab := fun (stx : Syntax) => do - match stx with - | `(command|#load_dialect $pathStx) => - let dialectPath : FilePath := pathStx.getString - let absPath ← resolveLeanRelPath dialectPath - if ! (←absPath.pathExists) then - throwError "Could not find file {dialectPath}" - let loaded := (dialectExt.getState (←Lean.getEnv)).loaded - let (_, r) ← Elab.loadDialectFromPath {} loaded #[] - (path := dialectPath) (actualPath := absPath) (expected := .none) - -- Add dialect to command environment - match r with - | .ok d => - declareDialect d - | .error errorMessages => - assert! errorMessages.size > 0 - throwError (← Elab.mkErrorReport errorMessages) - | _ => - throwUnsupportedSyntax - -end Strata +import Strata.DDM.Integration.Lean.HashCommands diff --git a/Strata/DDM/Integration/Lean/Gen.lean b/Strata/DDM/Integration/Lean/Gen.lean index 0e5e1ad428..455b3b2bc8 100644 --- a/Strata/DDM/Integration/Lean/Gen.lean +++ b/Strata/DDM/Integration/Lean/Gen.lean @@ -5,11 +5,9 @@ -/ import Lean.Elab.Command -import Strata.DDM.BuiltinDialects.StrataDDL import Strata.DDM.Integration.Lean.Env import Strata.DDM.Integration.Lean.GenTrace import Strata.DDM.Integration.Lean.OfAstM -import Strata.DDM.Integration.Lean.Quote import Strata.DDM.Util.Graph.Tarjan open Lean (Command Name Ident Term TSyntax getEnv logError profileitM quote withTraceNode mkIdentFrom) diff --git a/Strata/DDM/Integration/Lean/HashCommands.lean b/Strata/DDM/Integration/Lean/HashCommands.lean index 1b7188593c..823a030e2e 100644 --- a/Strata/DDM/Integration/Lean/HashCommands.lean +++ b/Strata/DDM/Integration/Lean/HashCommands.lean @@ -5,19 +5,22 @@ -/ import Strata.DDM.Integration.Lean.Env -import Strata.DDM.Integration.Lean.Quote import Strata.DDM.Integration.Lean.ToExpr import Strata.DDM.TaggedRegions open Lean -open Elab.Command (CommandElab CommandElabM elabCommand) -open Elab.Term (TermElab) -open Parser (InputContext) +open Lean.Elab (throwUnsupportedSyntax) +open Lean.Elab.Command (CommandElab CommandElabM) +open Lean.Elab.Term (TermElab) +open Lean.Parser (InputContext) +open System (FilePath) namespace Strata -class HasInputContext (m : Type → Type _) where +class HasInputContext (m : Type → Type _) [Functor m] where getInputContext : m InputContext + getFileName : m FilePath := + (fun ctx => FilePath.mk ctx.fileName) <$> getInputContext export HasInputContext (getInputContext) @@ -25,19 +28,85 @@ instance : HasInputContext CommandElabM where getInputContext := do let ctx ← read pure { - input := ctx.fileMap.source + inputString := ctx.fileMap.source fileName := ctx.fileName - fileMap := ctx.fileMap + fileMap := ctx.fileMap } + getFileName := return (← read).fileName instance : HasInputContext CoreM where getInputContext := do let ctx ← read pure { - input := ctx.fileMap.source + inputString := ctx.fileMap.source fileName := ctx.fileName - fileMap := ctx.fileMap + fileMap := ctx.fileMap } + getFileName := return (← read).fileName + +private def mkScopedName {m} [Monad m] [MonadError m] [MonadEnv m] [MonadResolveName m] (name : Name) : m Name := do + let scope ← getCurrNamespace + let fullName := scope ++ name + let env ← getEnv + if env.contains fullName then + throwError s!"Cannot define {name}: {fullName} already exists." + return fullName + +/-- +Prepend the current namespace to the Lean name and convert to an identifier. +-/ +private def mkAbsIdent (name : Lean.Name) : Ident := + let nameStr := toString name + .mk (.ident .none nameStr.toSubstring name [.decl name []]) + +open Lean.Elab.Command (liftCoreM) + +/-- +Add a definition to environment and compile it. +-/ +def addDefn (name : Lean.Name) + (type : Lean.Expr) + (value : Lean.Expr) + (levelParams : List Name := []) + (hints : ReducibilityHints := .abbrev) + (safety : DefinitionSafety := .safe) + (all : List Lean.Name := [name]) : CoreM Unit := do + addAndCompile <| .defnDecl { + name := name + levelParams := levelParams + type := type + value := value + hints := hints + safety := safety + all := all + } + +/-- +Declare dialect and add to environment. +-/ +def declareDialect (d : Dialect) : CommandElabM Unit := do + -- Identifier for dialect + let dialectName := Name.anonymous |>.str d.name + let dialectAbsName ← mkScopedName dialectName + -- Identifier for dialect map + let mapAbsName ← mkScopedName (Name.anonymous |>.str s!"{d.name}_map") + + let dialectTypeExpr := mkConst ``Dialect + liftCoreM <| addDefn dialectAbsName dialectTypeExpr (toExpr d) + -- Add dialect to environment + modifyEnv fun env => + dialectExt.modifyState env (·.addDialect! d dialectAbsName (isNew := true)) + -- Create term to represent minimal DialectMap with dialect. + let s := (dialectExt.getState (←Lean.getEnv)) + let openDialects := s.loaded.dialects.importedDialects! d.name |>.toList + let exprD (d : Dialect) : CommandElabM Lean.Expr := do + let some name := s.nameMap[d.name]? + | throwError s!"Unknown dialect {d.name}" + return mkConst name + let de ← openDialects.mapM exprD + let mapValue := mkApp (mkConst ``DialectMap.ofList!) + (listToExpr .zero dialectTypeExpr de) + liftCoreM <| addDefn mapAbsName (mkConst ``DialectMap) mapValue declare_tagged_region command strataDialectCommand "#dialect" "#end" @@ -47,39 +116,77 @@ def strataDialectImpl: Lean.Elab.Command.CommandElab := fun (stx : Syntax) => do | throwError s!"Bad {stx[1]}" let .original _ p _ e := i | throwError s!"Expected input context" - let emptyLeanEnv ← mkEmptyEnvironment 0 let inputCtx ← getInputContext - let dialects := (dialectExt.getState (←Lean.getEnv)).loaded - let loadFn (dialect : String) := pure (Except.error s!"Unknown dialect {dialect}.") - let (d, s, _) ← Elab.elabDialect emptyLeanEnv loadFn dialects inputCtx p e + let loaded := (dialectExt.getState (←Lean.getEnv)).loaded + let (_, d, s) ← Strata.Elab.elabDialect {} loaded inputCtx p e if !s.errors.isEmpty then for e in s.errors do logMessage e return - -- Add dialect to command - let cmd ← `(command| def $(Lean.mkLocalDeclId d.name) := $(quote d)) - tryCatch (elabCommand cmd) fun e => - panic! "Elab command failed: {e}" - modifyEnv fun env => - dialectExt.modifyState env (·.addDialect! d (isNew := true)) + -- Add dialect to command environment + declareDialect d declare_tagged_region term strataProgram "#strata" "#end" - @[term_elab strataProgram] +@[term_elab strataProgram] def strataProgramImpl : TermElab := fun stx tp => do let .atom i v := stx[1] | throwError s!"Bad {stx[1]}" let .original _ p _ e := i | throwError s!"Expected input context" let inputCtx ← (getInputContext : CoreM _) - let loader := (dialectExt.getState (←Lean.getEnv)).loaded + let s := (dialectExt.getState (←Lean.getEnv)) let leanEnv ← Lean.mkEmptyEnvironment 0 - match Elab.elabProgram loader leanEnv inputCtx p e with + match Elab.elabProgram s.loaded leanEnv inputCtx p e with | .ok pgm => - return toExpr pgm + -- Get Lean name for dialect + let some (.str name root) := s.nameMap[pgm.dialect]? + | throwError s!"Unknown dialect {pgm.dialect}" + let commandType := mkConst ``Operation + let cmdToExpr (cmd : Strata.Operation) : CoreM Lean.Expr := do + let n ← mkFreshUserName `command + addDefn n commandType (toExpr cmd) + pure <| mkConst n + let commandExprs ← monadLift <| pgm.commands.mapM cmdToExpr + return astExpr! Program.create + (mkConst (name |>.str s!"{root}_map")) + (toExpr pgm.dialect) + (arrayToExpr .zero commandType commandExprs) | .error errors => for e in errors do logMessage e return mkApp2 (mkConst ``sorryAx [1]) (toTypeExpr Program) (toExpr true) +syntax (name := loadDialectCommand) "#load_dialect" str : command + +def resolveLeanRelPath {m} [Monad m] [HasInputContext m] [MonadError m] (path : FilePath) : m FilePath := do + if path.isAbsolute then + pure path + else + let leanPath ← HasInputContext.getFileName + let .some leanDir := leanPath.parent + | throwError "Current file {leanPath} does not have a parent." + pure <| leanDir / path + +@[command_elab loadDialectCommand] +def loadDialectImpl: CommandElab := fun (stx : Syntax) => do + match stx with + | `(command|#load_dialect $pathStx) => + let dialectPath : FilePath := pathStx.getString + let absPath ← resolveLeanRelPath dialectPath + if ! (← absPath.pathExists) then + throwErrorAt pathStx "Could not find file {dialectPath}" + let loaded := (dialectExt.getState (←Lean.getEnv)).loaded + let (_, r) ← Elab.loadDialectFromPath {} loaded #[] + (path := dialectPath) (actualPath := absPath) (expected := .none) + -- Add dialect to command environment + match r with + | .ok d => + declareDialect d + | .error errorMessages => + assert! errorMessages.size > 0 + throwError (← Elab.mkErrorReport errorMessages) + | _ => + throwUnsupportedSyntax + end Strata diff --git a/Strata/DDM/Integration/Lean/Quote.lean b/Strata/DDM/Integration/Lean/Quote.lean deleted file mode 100644 index 1f698bb002..0000000000 --- a/Strata/DDM/Integration/Lean/Quote.lean +++ /dev/null @@ -1,303 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ - -import Strata.DDM.AST -import Lean.Elab.Term - -namespace Strata - -open Lean - -private def quoteOption (a : Option Term) : Term := - match a with - | none => Syntax.mkCApp ``Option.none #[] - | some a => Syntax.mkCApp ``Option.some #[a] - -private def quoteArray (a : Array Term) : Term := - if a.size <= 8 then - let terms := a - Syntax.mkCApp (Name.mkStr2 "Array" ("mkArray" ++ toString a.size)) terms - else - let e := Syntax.mkCApp ``Array.mkEmpty #[quote a.size] - a.foldl (init := e) fun t a => Syntax.mkCApp ``Array.push #[t, a] - -section -open Lean.Elab - -/-- -Lift a DDM AST constructor that takes a polymorphic annotation value to -the syntax level with the correct number of arguments. - -For example, `astQuote! ArgF.ident ann (quote e)` returns syntax for (ArgF.ident ann e). --/ -syntax:max (name := astQuoteElab) "astQuote!" ident term:max term:max* : term - -@[term_elab astQuoteElab] -def astQuoteElabImpl : Term.TermElab := fun stx _expectedType => do - let a := stx.getArgs - assert! a.size = 4 - let ident := a[1]! - assert! ident.isIdent - let ctor ← realizeGlobalConstNoOverloadWithInfo ident - let cv ← getConstVal ctor - - let ann ← Term.elabTerm a[2]! none - let annType ← Meta.inferType ann - let termExpr := toExpr `term - let annTypeInst ← Meta.synthInstance (mkApp2 (mkConst ``Quote) annType termExpr) - let .sort (.succ .zero) ← Meta.inferType annType - | throwError "Annotation must have type Type." - let annExpr := mkApp4 (mkConst ``quote) annType termExpr annTypeInst ann - - let argc := cv.type.getForallBinderNames.length - if argc < 2 then - throwErrorAt ident "Expected constructor with annotation argument." - - let termList := a[3]! - assert! termList.isOfKind nullKind - let terms := termList.getArgs - if argc - 2 ≠ terms.size then - throwErrorAt ident "Expected {argc - 2} arguments; found {terms.size} arguments." - let eltType := mkApp (mkConst ``TSyntax) (toExpr [`term]) - let a ← terms.mapM_off (init := #[annExpr]) fun ts => Term.elabTerm ts (some eltType) - return mkApp2 (mkConst ``Lean.Syntax.mkCApp) (toExpr ctor) (arrayToExpr eltType a) - -end - -namespace SyntaxCatF - -protected def quote {α} [Quote α] (cat : SyntaxCatF α) : Term := - let r := quoteArray <| cat.args.map fun x => x.quote - astQuote! SyntaxCatF.mk cat.ann (quote cat.name) r -termination_by sizeOf cat -decreasing_by - simp [sizeOf_spec cat] - decreasing_tactic - -instance {α} [Quote α] : Quote (SyntaxCatF α) where - quote := SyntaxCatF.quote - -end SyntaxCatF - -namespace TypeExprF - -protected def quote {α} [Quote α] : TypeExprF α → Term -| .ident ann nm a => - astQuote! ident ann (quote nm) (quoteArray (a.map (·.quote))) -| .bvar ann idx => - astQuote! bvar ann (quote idx) -| .fvar ann idx a => - astQuote! fvar ann (quote idx) (quoteArray (a.map (·.quote))) -| .arrow ann a r => - astQuote! arrow ann a.quote r.quote -termination_by e => e - -instance {α} [Quote α] : Quote (TypeExprF α) where - quote := TypeExprF.quote - -end TypeExprF - -mutual - -protected def ArgF.quote {α} [Quote α] : ArgF α → Term -| .op o => Syntax.mkCApp ``ArgF.op #[o.quote] -| .expr e => Syntax.mkCApp ``ArgF.expr #[e.quote] -| .type e => Syntax.mkCApp ``ArgF.type #[quote e] -| .cat e => Syntax.mkCApp ``ArgF.cat #[quote e] -| .ident ann e => astQuote! ArgF.ident ann (quote e) -| .num ann e => astQuote! ArgF.num ann (quote e) -| .decimal ann e => astQuote! ArgF.decimal ann (quote e) -| .strlit ann e => astQuote! ArgF.strlit ann (quote e) -| .bytes ann e => astQuote! ArgF.bytes ann (quote e) -| .option ann a => astQuote! ArgF.option ann (quoteOption (a.attach.map (fun ⟨e, _⟩ => e.quote))) -| .seq ann a => astQuote! ArgF.seq ann (quoteArray (a.map (·.quote))) -| .commaSepList ann a => astQuote! ArgF.commaSepList ann (quoteArray (a.map (·.quote))) -termination_by a => sizeOf a - -protected def ExprF.quote {α} [Quote α] : ExprF α → Term -| .bvar ann s => astQuote! ExprF.bvar ann (quote s) -| .fvar ann idx => astQuote! ExprF.fvar ann (quote idx) -| .fn ann ident => astQuote! ExprF.fn ann (quote ident) -| .app ann f a => astQuote! ExprF.app ann f.quote a.quote -termination_by e => sizeOf e - -def OperationF.quote {α} [Quote α] (op : OperationF α) : Term := - let r := quoteArray <| op.args.map fun x => x.quote - astQuote! OperationF.mk op.ann (quote op.name) r -termination_by sizeOf op -decreasing_by - simp [OperationF.sizeOf_spec] - decreasing_tactic - -end - -instance {α} [Quote α] : Quote (ArgF α) where - quote := ArgF.quote - -instance {α} [Quote α] : Quote (ExprF α) where - quote := ExprF.quote - -instance {α} [Quote α] : Quote (OperationF α) where - quote := OperationF.quote - -instance : Quote String.Pos where - quote e := Syntax.mkCApp ``String.Pos.mk #[quote e.byteIdx] - -namespace SourceRange - -instance : Quote SourceRange where - quote x := Syntax.mkCApp ``mk #[quote x.start, quote x.stop] - -end SourceRange - -namespace PreType - -protected def quote : PreType → Term -| .ident ann nm a => - Syntax.mkCApp ``ident #[quote ann, quote nm, quoteArray (a.map (·.quote))] -| .bvar ann idx => Syntax.mkCApp ``bvar #[quote ann, quote idx] -| .fvar ann idx a => - Syntax.mkCApp ``fvar #[quote ann, quote idx, quoteArray (a.map (·.quote))] -| .arrow ann a r => Syntax.mkCApp ``arrow #[quote ann, a.quote, r.quote] -| .funMacro ann i r => - Syntax.mkCApp ``funMacro #[quote ann, quote i, r.quote] - -instance : Quote PreType where - quote := PreType.quote - -end PreType - -namespace MetadataArg - -protected def quote : MetadataArg → Term - | .bool b => Syntax.mkCApp ``bool #[quote b] - | .num n => Syntax.mkCApp ``num #[quote n] - | .catbvar n => Syntax.mkCApp ``catbvar #[quote n] - | .option ma => Syntax.mkCApp ``option #[quoteOption (ma.attach.map fun ⟨a, _⟩ => a.quote)] - -instance : Quote MetadataArg where - quote := MetadataArg.quote - -end MetadataArg - -instance : Quote MetadataAttr where - quote a := Syntax.mkCApp ``MetadataAttr.mk #[quote a.ident, quote a.args] - -instance : Quote Metadata where - quote m := Syntax.mkCApp ``Metadata.ofArray #[quote m.toArray] - -namespace ArgDeclKind - -instance : Quote ArgDeclKind where - quote - | .type tp => Syntax.mkCApp ``type #[quote tp] - | .cat c => Syntax.mkCApp ``cat #[quote c] - -end ArgDeclKind - -instance ArgDecl.instQuote : Quote ArgDecl where - quote b := Syntax.mkCApp ``mk #[quote b.ident, quote b.kind, quote b.metadata] - -namespace SyntaxDefAtom - -protected def quote : SyntaxDefAtom → Term -| .ident v p => Syntax.mkCApp ``ident #[quote v, quote p] -| .str l => Syntax.mkCApp ``str #[quote l] -| .indent n a => Syntax.mkCApp ``indent #[quote n, quoteArray (a.map (·.quote))] - -instance : Quote SyntaxDefAtom where - quote := SyntaxDefAtom.quote - -end SyntaxDefAtom - -namespace SyntaxDef - -instance : Quote SyntaxDef where - quote s := Syntax.mkCApp ``SyntaxDef.mk #[quote s.atoms, quote s.prec] - -end SyntaxDef - -instance : Quote ArgDecls where - quote a := Syntax.mkCApp ``ArgDecls.ofArray #[quote a.toArray] - -instance : Quote SynCatDecl where - quote d := Syntax.mkCApp ``SynCatDecl.mk #[quote d.name, quote d.argNames] - -instance : Quote OpDecl where - quote d := Syntax.mkCApp ``OpDecl.mk1 #[ - quote d.name, - quote d.argDecls, - quote d.category, - quote d.syntaxDef, - quote d.metadata - ] - -instance {α β} [Quote α] [Quote β] : Quote (Ann α β) where - quote p := Syntax.mkCApp ``Ann.mk #[quote p.ann, quote p.val] - -instance : Quote TypeDecl where - quote d := Syntax.mkCApp ``TypeDecl.mk #[quote d.name, quote d.argNames] - -instance : Quote FunctionDecl where - quote d := Syntax.mkCApp ``FunctionDecl.mk #[ - quote d.name, - quote d.argDecls, - quote d.result, - quote d.syntaxDef, - quote d.metadata - ] - -namespace MetadataArgType - -protected def quote : MetadataArgType → Term -| .bool => mkCIdent ``bool -| .num => mkCIdent ``num -| .ident => mkCIdent ``ident -| .opt tp => Syntax.mkCApp ``opt #[tp.quote] - -instance : Quote MetadataArgType where - quote := MetadataArgType.quote - -end MetadataArgType - -instance : Quote MetadataArgDecl where - quote d := Syntax.mkCApp ``MetadataArgDecl.mk #[quote d.ident, quote d.type] - -instance : Quote MetadataDecl where - quote d := Syntax.mkCApp ``MetadataDecl.mk #[quote d.name, quote d.args] - -instance : Quote Decl where - quote - | .syncat d => Syntax.mkCApp ``Decl.syncat #[quote d] - | .op d => Syntax.mkCApp ``Decl.op #[quote d] - | .type d => Syntax.mkCApp ``Decl.type #[quote d] - | .function d => Syntax.mkCApp ``Decl.function #[quote d] - | .metadata d => Syntax.mkCApp ``Decl.metadata #[quote d] - -instance : Quote Dialect where - quote d : Term := - Syntax.mkCApp ``Dialect.ofArray #[ - quote d.name, - quote d.imports, - quote d.declarations - ] - -namespace DialectMap - -instance : Quote DialectMap where - quote d := Syntax.mkCApp ``DialectMap.ofList! #[quote d.toList] - -end DialectMap - -instance : Quote Program where - quote p : Term := - Syntax.mkCApp ``Program.create #[ - quote p.dialects, - quote p.dialect, - quote p.commands - ] - -end Strata diff --git a/Strata/DDM/Integration/Lean/ToExpr.lean b/Strata/DDM/Integration/Lean/ToExpr.lean index 13b5221418..9120654da3 100644 --- a/Strata/DDM/Integration/Lean/ToExpr.lean +++ b/Strata/DDM/Integration/Lean/ToExpr.lean @@ -88,7 +88,7 @@ namespace SyntaxCatF protected def typeExpr (α : Type) [ToExpr α] := mkApp (mkConst ``SyntaxCatF) (toTypeExpr α) protected def toExpr {α} [ToExpr α] (cat : SyntaxCatF α) : Lean.Expr := - let args := arrayToExpr (SyntaxCatF.typeExpr α) (cat.args.map fun e => e.toExpr) + let args := arrayToExpr levelZero (SyntaxCatF.typeExpr α) (cat.args.map fun e => e.toExpr) astAnnExpr! SyntaxCatF.mk cat.ann (toExpr cat.name) args decreasing_by simp [SyntaxCatF.sizeOf_spec cat] @@ -107,12 +107,12 @@ protected def typeExpr (ann : Lean.Expr) : Lean.Expr := protected def toExpr {α} [ToExpr α] : TypeExprF α → Lean.Expr | .ident ann nm a => - let ae := arrayToExpr (TypeExprF.typeExpr (toTypeExpr α)) (a.map (·.toExpr)) + let ae := arrayToExpr levelZero (TypeExprF.typeExpr (toTypeExpr α)) (a.map (·.toExpr)) astAnnExpr! ident ann (toExpr nm) ae | .bvar ann idx => astAnnExpr! bvar ann (toExpr idx) | .fvar ann idx a => - let ae := arrayToExpr (TypeExprF.typeExpr (toTypeExpr α)) (a.map (·.toExpr)) + let ae := arrayToExpr levelZero (TypeExprF.typeExpr (toTypeExpr α)) (a.map (·.toExpr)) astAnnExpr! fvar ann (toExpr idx) ae | .arrow ann a r => astAnnExpr! arrow ann a.toExpr r.toExpr @@ -157,14 +157,14 @@ def ArgF.toExpr {α} [ToExpr α] : ArgF α → Lean.Expr astAnnExpr! ArgF.option ann (optionToExpr tpe <| a.attach.map fun ⟨e, _⟩ => e.toExpr) | .seq ann a => let tpe := ArgF.typeExpr α - astAnnExpr! ArgF.seq ann <| arrayToExpr tpe <| a.map (·.toExpr) + astAnnExpr! ArgF.seq ann <| arrayToExpr .zero tpe <| a.map (·.toExpr) | .commaSepList ann a => let tpe := ArgF.typeExpr α - astAnnExpr! ArgF.commaSepList ann <| arrayToExpr tpe <| a.map (·.toExpr) + astAnnExpr! ArgF.commaSepList ann <| arrayToExpr .zero tpe <| a.map (·.toExpr) termination_by a => sizeOf a protected def OperationF.toExpr {α} [ToExpr α] (op : OperationF α) : Lean.Expr := - let args := arrayToExpr (ArgF.typeExpr α) (op.args.map (·.toExpr)) + let args := arrayToExpr .zero (ArgF.typeExpr α) (op.args.map (·.toExpr)) astAnnExpr! OperationF.mk op.ann (toExpr op.name) args termination_by sizeOf op decreasing_by @@ -208,11 +208,11 @@ protected def typeExpr : Lean.Expr := mkConst ``PreType protected def toExpr : PreType → Lean.Expr | .ident loc nm a => - let args := arrayToExpr PreType.typeExpr (a.map (·.toExpr)) + let args := arrayToExpr .zero PreType.typeExpr (a.map (·.toExpr)) astExpr! ident (toExpr loc) (toExpr nm) args | .bvar loc idx => astExpr! bvar (toExpr loc) (toExpr idx) | .fvar loc idx a => - let args := arrayToExpr PreType.typeExpr (a.map (·.toExpr)) + let args := arrayToExpr .zero PreType.typeExpr (a.map (·.toExpr)) astExpr! fvar (toExpr loc) (toExpr idx) args | .arrow loc a r => astExpr! arrow (toExpr loc) a.toExpr r.toExpr @@ -280,7 +280,7 @@ protected def toExpr : SyntaxDefAtom → Lean.Expr | .ident v p => astExpr! ident (toExpr v) (toExpr p) | .str l => astExpr! str (toExpr l) | .indent n a => - let args := arrayToExpr SyntaxDefAtom.typeExpr (a.map (·.toExpr)) + let args := arrayToExpr .zero SyntaxDefAtom.typeExpr (a.map (·.toExpr)) astExpr! indent (toExpr n) args instance : ToExpr SyntaxDefAtom where @@ -365,7 +365,7 @@ instance : ToExpr OpDecl where toTypeExpr := mkConst ``OpDecl toExpr d := let be := toExpr d.argDecls - let bindings := arrayToExpr (BindingSpec.typeExpr be) (d.newBindings.map (·.toExpr be)) + let bindings := arrayToExpr .zero (BindingSpec.typeExpr be) (d.newBindings.map (·.toExpr be)) astExpr! mk (toExpr d.name) be diff --git a/Strata/DDM/Util/Lean.lean b/Strata/DDM/Util/Lean.lean index 7a74c84198..01e24502ed 100644 --- a/Strata/DDM/Util/Lean.lean +++ b/Strata/DDM/Util/Lean.lean @@ -62,9 +62,14 @@ def optionToExpr (type : Lean.Expr) (a : Option Lean.Expr) : Lean.Expr := | some a => mkApp2 (mkConst ``Option.some [levelZero]) type a @[inline] -def arrayToExpr (type : Lean.Expr) (a : Array Lean.Expr) : Lean.Expr := - let init := mkApp2 (mkConst ``Array.mkEmpty [levelZero]) type (toExpr a.size) - let pushFn := mkApp (mkConst ``Array.push [levelZero]) type +def arrayToExpr (level : Level) (type : Lean.Expr) (a : Array Lean.Expr) : Lean.Expr := + let init := mkApp2 (mkConst ``Array.mkEmpty [level]) type (toExpr a.size) + let pushFn := mkApp (mkConst ``Array.push [level]) type a.foldl (init := init) (mkApp2 pushFn) +def listToExpr (level : Level) (type : Lean.Expr) (es : List Lean.Expr) : Lean.Expr := + let nilFn := mkApp (mkConst ``List.nil [level]) type + let consFn := mkApp (mkConst ``List.cons [level]) type + es.foldr (init := nilFn) (mkApp2 consFn) + end Lean diff --git a/Strata/Languages/Python/BoogiePrelude.lean b/Strata/Languages/Python/BoogiePrelude.lean index 2a704e8134..7f3f631aeb 100644 --- a/Strata/Languages/Python/BoogiePrelude.lean +++ b/Strata/Languages/Python/BoogiePrelude.lean @@ -11,7 +11,6 @@ import Strata.Languages.Boogie.Verifier namespace Strata -set_option maxRecDepth 25000 def boogiePrelude := #strata program Boogie; diff --git a/Strata/Languages/Python/PythonDialect.lean b/Strata/Languages/Python/PythonDialect.lean index a6be1c3863..8ae84a57d6 100644 --- a/Strata/Languages/Python/PythonDialect.lean +++ b/Strata/Languages/Python/PythonDialect.lean @@ -4,10 +4,8 @@ SPDX-License-Identifier: Apache-2.0 OR MIT -/ -import Strata.DDM.Elab -import Strata.DDM.AST +import Strata.DDM.Integration.Lean -import Strata.Languages.Boogie.DDMTransform.Parse namespace Strata @@ -15,6 +13,7 @@ namespace Strata namespace Python #load_dialect "../../../Tools/Python/test_results/dialects/Python.dialect.st.ion" + #strata_gen Python end Python From 7d8768433c9430e55cfafda9b6f1e01a67b929fe Mon Sep 17 00:00:00 2001 From: Juneyoung Lee <136006969+aqjune-aws@users.noreply.github.com> Date: Mon, 1 Dec 2025 15:12:50 -0600 Subject: [PATCH 02/68] Refactor SemanticEval to receive only one SemanticStore (#213) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit *Description of changes:* This pull request updates the expression evaluator (`SemanticEval` in Strata) which previously needed to take two states: one for old expressions, one for normal (‘new’) expressions, but after this pull request it takes only one state. It introduces a couple of `sorry`s, but these will be eventually fixed. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/DL/Imperative/CmdSemantics.lean | 41 ++-- Strata/DL/Imperative/NondetStmtSemantics.lean | 21 +- Strata/DL/Imperative/SemanticsProps.lean | 58 +++--- Strata/DL/Imperative/StmtSemantics.lean | 63 +++--- .../DL/Imperative/StmtSemanticsSmallStep.lean | 58 +++--- .../Languages/Boogie/StatementSemantics.lean | 96 ++++----- .../Boogie/StatementSemanticsProps.lean | 66 +++--- Strata/Transform/CallElimCorrect.lean | 189 ++++++++---------- Strata/Transform/DetToNondetCorrect.lean | 42 ++-- 9 files changed, 302 insertions(+), 332 deletions(-) diff --git a/Strata/DL/Imperative/CmdSemantics.lean b/Strata/DL/Imperative/CmdSemantics.lean index 3aa6a1b771..d29c3725ce 100644 --- a/Strata/DL/Imperative/CmdSemantics.lean +++ b/Strata/DL/Imperative/CmdSemantics.lean @@ -24,8 +24,8 @@ lookups. The evaluation functions take two states: an old state and a current state. This allows for two-state expressions and predicates. -/ abbrev SemanticStore := P.Ident → Option P.Expr -abbrev SemanticEval := SemanticStore P → SemanticStore P → P.Expr → Option P.Expr -abbrev SemanticEvalBool := SemanticStore P → SemanticStore P → P.Expr → Option Bool +abbrev SemanticEval := SemanticStore P → P.Expr → Option P.Expr +abbrev SemanticEvalBool := SemanticStore P → P.Expr → Option Bool /-- @@ -33,8 +33,7 @@ Evaluation relation of an Imperative command `Cmd`. -/ -- (FIXME) Change to a type class? abbrev EvalCmdParam (P : PureExpr) (Cmd : Type) := - SemanticEval P → SemanticStore P → SemanticStore P → Cmd → - SemanticStore P → Prop + SemanticEval P → SemanticStore P → Cmd → SemanticStore P → Prop /-- ### Well-Formedness of `SemanticStore`s -/ @@ -219,22 +218,22 @@ theorem invStoresExceptComm : -/ def WellFormedSemanticEvalBool {P : PureExpr} [HasBool P] [HasNot P] (δ : SemanticEval P) : Prop := - ∀ σ₀ σ e, - (δ σ₀ σ e = some Imperative.HasBool.tt ↔ δ σ₀ σ (Imperative.HasNot.not e) = (some HasBool.ff)) ∧ - (δ σ₀ σ e = some Imperative.HasBool.ff ↔ δ σ₀ σ (Imperative.HasNot.not e) = (some HasBool.tt)) + ∀ σ e, + (δ σ e = some Imperative.HasBool.tt ↔ δ σ (Imperative.HasNot.not e) = (some HasBool.ff)) ∧ + (δ σ e = some Imperative.HasBool.ff ↔ δ σ (Imperative.HasNot.not e) = (some HasBool.tt)) def WellFormedSemanticEvalVal {P : PureExpr} [HasVal P] (δ : SemanticEval P) : Prop := -- evaluator only evaluates to values - (∀ v v' σ₀ σ, δ σ₀ σ v = some v' → HasVal.value v') ∧ + (∀ v v' σ, δ σ v = some v' → HasVal.value v') ∧ -- evaluator is identity on values - (∀ v' σ₀ σ, HasVal.value v' → δ σ₀ σ v' = some v') + (∀ v' σ, HasVal.value v' → δ σ v' = some v') def WellFormedSemanticEvalVar {P : PureExpr} [HasFvar P] (δ : SemanticEval P) - : Prop := (∀ e v σ₀ σ, HasFvar.getFvar e = some v → δ σ₀ σ e = σ v) + : Prop := (∀ e v σ, HasFvar.getFvar e = some v → δ σ e = σ v) def WellFormedSemanticEvalExprCongr {P : PureExpr} [HasVarsPure P P.Expr] (δ : SemanticEval P) - : Prop := ∀ e σ₀ σ σ', (∀ x ∈ HasVarsPure.getVars e, σ x = σ' x) → δ σ₀ σ e = δ σ₀ σ' e + : Prop := ∀ e σ σ', (∀ x ∈ HasVarsPure.getVars e, σ x = σ' x) → δ σ e = δ σ' e /-- An inductive rule for state update. -/ @@ -262,38 +261,38 @@ An inductively-defined operational semantics that depends on environment lookup and evaluation functions for expressions. -/ inductive EvalCmd [HasFvar P] [HasBool P] [HasNot P] : - SemanticEval P → SemanticStore P → SemanticStore P → Cmd P → SemanticStore P → Prop where + SemanticEval P → SemanticStore P → Cmd P → SemanticStore P → Prop where | eval_init : - δ σ₀ σ e = .some v → + δ σ e = .some v → InitState P σ x v σ' → WellFormedSemanticEvalVar δ → --- - EvalCmd δ σ₀ σ (.init x _ e _) σ' + EvalCmd δ σ (.init x _ e _) σ' | eval_set : - δ σ₀ σ e = .some v → + δ σ e = .some v → UpdateState P σ x v σ' → WellFormedSemanticEvalVar δ → ---- - EvalCmd δ σ₀ σ (.set x e _) σ' + EvalCmd δ σ (.set x e _) σ' | eval_havoc : UpdateState P σ x v σ' → WellFormedSemanticEvalVar δ → ---- - EvalCmd δ σ₀ σ (.havoc x _) σ' + EvalCmd δ σ (.havoc x _) σ' | eval_assert : - δ σ₀ σ e = .some HasBool.tt → + δ σ e = .some HasBool.tt → WellFormedSemanticEvalBool δ → ---- - EvalCmd δ σ₀ σ (.assert _ e _) σ + EvalCmd δ σ (.assert _ e _) σ | eval_assume : - δ σ₀ σ e = .some HasBool.tt → + δ σ e = .some HasBool.tt → WellFormedSemanticEvalBool δ → ---- - EvalCmd δ σ₀ σ (.assume _ e _) σ + EvalCmd δ σ (.assume _ e _) σ end section diff --git a/Strata/DL/Imperative/NondetStmtSemantics.lean b/Strata/DL/Imperative/NondetStmtSemantics.lean index ba01e3fe5d..929d60819d 100644 --- a/Strata/DL/Imperative/NondetStmtSemantics.lean +++ b/Strata/DL/Imperative/NondetStmtSemantics.lean @@ -18,32 +18,31 @@ statements that depends on environment lookup and evaluation functions for expressions. -/ inductive EvalNondetStmt (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasBool P] [HasNot P] : - SemanticEval P → SemanticStore P → SemanticStore P → - NondetStmt P Cmd → SemanticStore P → Prop where + SemanticEval P → SemanticStore P → NondetStmt P Cmd → SemanticStore P → Prop where | cmd_sem : - EvalCmd δ σ₀ σ c σ' → + EvalCmd δ σ c σ' → -- We only require definedness on the statement level so that the requirement is fine-grained isDefinedOver (HasVarsImp.modifiedVars) σ c → ---- - EvalNondetStmt P Cmd EvalCmd δ σ₀ σ (NondetStmt.cmd c) σ' + EvalNondetStmt P Cmd EvalCmd δ σ (NondetStmt.cmd c) σ' | seq_sem : - EvalNondetStmt P Cmd EvalCmd δ σ₀ σ s1 σ' → - EvalNondetStmt P Cmd EvalCmd δ σ₀ σ' s2 σ'' → + EvalNondetStmt P Cmd EvalCmd δ σ s1 σ' → + EvalNondetStmt P Cmd EvalCmd δ σ' s2 σ'' → ---- - EvalNondetStmt P Cmd EvalCmd δ σ₀ σ (.seq s1 s2) σ'' + EvalNondetStmt P Cmd EvalCmd δ σ (.seq s1 s2) σ'' | choice_left_sem : WellFormedSemanticEvalBool δ → - EvalNondetStmt P Cmd EvalCmd δ σ₀ σ s1 σ' → + EvalNondetStmt P Cmd EvalCmd δ σ s1 σ' → ---- - EvalNondetStmt P Cmd EvalCmd δ σ₀ σ (.choice s1 s2) σ' + EvalNondetStmt P Cmd EvalCmd δ σ (.choice s1 s2) σ' | choice_right_sem : WellFormedSemanticEvalBool δ → - EvalNondetStmt P Cmd EvalCmd δ σ₀ σ s2 σ' → + EvalNondetStmt P Cmd EvalCmd δ σ s2 σ' → ---- - EvalNondetStmt P Cmd EvalCmd δ σ₀ σ (.choice s1 s2) σ' + EvalNondetStmt P Cmd EvalCmd δ σ (.choice s1 s2) σ' /- | loop_sem : diff --git a/Strata/DL/Imperative/SemanticsProps.lean b/Strata/DL/Imperative/SemanticsProps.lean index 196709db4e..e6cb6ba0c4 100644 --- a/Strata/DL/Imperative/SemanticsProps.lean +++ b/Strata/DL/Imperative/SemanticsProps.lean @@ -11,17 +11,17 @@ namespace Imperative theorem eval_assert_store_cst [HasFvar P] [HasBool P] [HasNot P]: - EvalCmd P δ σ₀ σ (.assert l e md) σ' → σ = σ' := by + EvalCmd P δ σ (.assert l e md) σ' → σ = σ' := by intros Heval; cases Heval with | eval_assert _ => rfl theorem eval_stmt_assert_store_cst [HasVarsImp P (List (Stmt P (Cmd P)))] [HasVarsImp P (Cmd P)] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (.cmd (Cmd.assert l e md)) σ' → σ = σ' := by + EvalStmt P (Cmd P) (EvalCmd P) δ σ (.cmd (Cmd.assert l e md)) σ' → σ = σ' := by intros Heval; cases Heval with | cmd_sem Hcmd => exact eval_assert_store_cst Hcmd theorem eval_stmts_assert_store_cst [HasVarsImp P (List (Stmt P (Cmd P)))] [HasVarsImp P (Cmd P)] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ [(.cmd (Cmd.assert l e md))] σ' → σ = σ' := by + EvalStmts P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.assert l e md))] σ' → σ = σ' := by intros Heval; cases Heval with | stmts_some_sem H1 H2 => cases H1 with @@ -32,8 +32,8 @@ theorem eval_stmts_assert_store_cst theorem eval_stmt_assert_eq_of_pure_expr_eq [HasVarsImp P (List (Stmt P (Cmd P)))] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : WellFormedSemanticEvalBool δ → - (EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (.cmd (Cmd.assert l1 e md1)) σ' ↔ - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (.cmd (Cmd.assert l2 e md2)) σ') := by + (EvalStmt P (Cmd P) (EvalCmd P) δ σ (.cmd (Cmd.assert l1 e md1)) σ' ↔ + EvalStmt P (Cmd P) (EvalCmd P) δ σ (.cmd (Cmd.assert l2 e md2)) σ') := by intro Hwf constructor <;> ( @@ -49,19 +49,19 @@ theorem eval_stmt_assert_eq_of_pure_expr_eq theorem eval_stmts_assert_elim [HasVarsImp P (List (Stmt P (Cmd P)))] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : WellFormedSemanticEvalBool δ → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ (.cmd (.assert l1 e md1) :: cmds) σ' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ cmds σ' := by + EvalStmts P (Cmd P) (EvalCmd P) δ σ (.cmd (.assert l1 e md1) :: cmds) σ' → + EvalStmts P (Cmd P) (EvalCmd P) δ σ cmds σ' := by intros Hwf Heval cases Heval with - | @stmts_some_sem _ _ _ _ σ1 _ _ Has1 Has2 => + | @stmts_some_sem _ _ _ σ1 _ _ Has1 Has2 => rw [← eval_stmt_assert_store_cst Has1] at Has2 assumption theorem assert_elim [HasVarsImp P (List (Stmt P (Cmd P)))] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : WellFormedSemanticEvalBool δ → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ (.cmd (.assert l1 e md1) :: [.cmd (.assert l2 e md2)]) σ' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ [.cmd (.assert l3 e md3)] σ' := by + EvalStmts P (Cmd P) (EvalCmd P) δ σ (.cmd (.assert l1 e md1) :: [.cmd (.assert l2 e md2)]) σ' → + EvalStmts P (Cmd P) (EvalCmd P) δ σ [.cmd (.assert l3 e md3)] σ' := by intro Hwf Heval have Heval := eval_stmts_assert_elim Hwf Heval rw [eval_stmts_singleton] at * @@ -124,11 +124,11 @@ theorem semantic_eval_eq_of_eval_cmd_set_unrelated_var [HasFvar P] [HasVal P] [HasBool P] [HasNot P]: WellFormedSemanticEvalExprCongr δ → ¬ v ∈ HasVarsPure.getVars e → - EvalCmd P δ σ₀ σ (Cmd.set v e') σ' → - δ σ₀ σ e = δ σ₀ σ' e := by + EvalCmd P δ σ (Cmd.set v e') σ' → + δ σ e = δ σ' e := by intro Hwf Hnin Heval unfold WellFormedSemanticEvalExprCongr at Hwf - specialize Hwf e σ₀ σ σ' + specialize Hwf e σ σ' have: ∀ (v : P.Ident), v ∈ HasVarsPure.getVars e → σ v = σ' v := by cases Heval rename_i Hu @@ -146,12 +146,12 @@ theorem eval_cmd_set_comm' [HasVarsImp P (List (Stmt P (Cmd P)))] [HasVarsImp P (Cmd P)] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] [DecidableEq P.Ident] : ¬ x1 = x2 → - δ σ₀ σ v1 = δ σ₀ σ2 v1 → - δ σ₀ σ v2 = δ σ₀ σ1 v2 → - EvalCmd P δ σ₀ σ (Cmd.set x1 v1) σ1 → - EvalCmd P δ σ₀ σ1 (Cmd.set x2 v2) σ' → - EvalCmd P δ σ₀ σ (Cmd.set x2 v2) σ2 → - EvalCmd P δ σ₀ σ2 (Cmd.set x1 v1) σ'' → + δ σ v1 = δ σ2 v1 → + δ σ v2 = δ σ1 v2 → + EvalCmd P δ σ (Cmd.set x1 v1) σ1 → + EvalCmd P δ σ1 (Cmd.set x2 v2) σ' → + EvalCmd P δ σ (Cmd.set x2 v2) σ2 → + EvalCmd P δ σ2 (Cmd.set x1 v1) σ'' → σ' = σ'' := by intro Hneq Heq1 Heq2 Hs1 Hs2 Hs3 Hs4 cases Hs1; cases Hs2; cases Hs3; cases Hs4 @@ -166,10 +166,10 @@ theorem eval_cmd_set_comm ¬ x1 = x2 → ¬ x1 ∈ HasVarsPure.getVars v2 → ¬ x2 ∈ HasVarsPure.getVars v1 → - EvalCmd P δ σ₀ σ (Cmd.set x1 v1) σ1 → - EvalCmd P δ σ₀ σ1 (Cmd.set x2 v2) σ' → - EvalCmd P δ σ₀ σ (Cmd.set x2 v2) σ2 → - EvalCmd P δ σ₀ σ2 (Cmd.set x1 v1) σ'' → + EvalCmd P δ σ (Cmd.set x1 v1) σ1 → + EvalCmd P δ σ1 (Cmd.set x2 v2) σ' → + EvalCmd P δ σ (Cmd.set x2 v2) σ2 → + EvalCmd P δ σ2 (Cmd.set x1 v1) σ'' → σ' = σ'' := by intro Hwf Hneq Hnin1 Hnin2 Hs1 Hs2 Hs3 Hs4 have Heval2:= semantic_eval_eq_of_eval_cmd_set_unrelated_var Hwf Hnin1 Hs1 @@ -183,10 +183,10 @@ theorem eval_stmt_set_comm ¬ x1 = x2 → ¬ x1 ∈ HasVarsPure.getVars v2 → ¬ x2 ∈ HasVarsPure.getVars v1 → - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (.cmd (Cmd.set x1 v1)) σ1 → - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ1 (.cmd (Cmd.set x2 v2)) σ' → - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (.cmd (Cmd.set x2 v2)) σ2 → - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ2 (.cmd (Cmd.set x1 v1)) σ'' → + EvalStmt P (Cmd P) (EvalCmd P) δ σ (.cmd (Cmd.set x1 v1)) σ1 → + EvalStmt P (Cmd P) (EvalCmd P) δ σ1 (.cmd (Cmd.set x2 v2)) σ' → + EvalStmt P (Cmd P) (EvalCmd P) δ σ (.cmd (Cmd.set x2 v2)) σ2 → + EvalStmt P (Cmd P) (EvalCmd P) δ σ2 (.cmd (Cmd.set x1 v1)) σ'' → σ' = σ'' := by intro Hwf Hneq Hnin1 Hnin2 Hs1 Hs2 Hs3 Hs4 cases Hs1; cases Hs2; cases Hs3; cases Hs4 @@ -200,8 +200,8 @@ theorem eval_stmts_set_comm ¬ x1 = x2 → ¬ x1 ∈ HasVarsPure.getVars v2 → ¬ x2 ∈ HasVarsPure.getVars v1 → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ [(.cmd (Cmd.set x1 v1)), (.cmd (Cmd.set x2 v2))] σ' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ [(.cmd (Cmd.set x2 v2)), (.cmd (Cmd.set x1 v1))] σ'' → + EvalStmts P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.set x1 v1)), (.cmd (Cmd.set x2 v2))] σ' → + EvalStmts P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.set x2 v2)), (.cmd (Cmd.set x1 v1))] σ'' → σ' = σ'' := by intro Hwf Hneq Hnin1 Hnin2 Hss1 Hss2 cases Hss1; cases Hss2 diff --git a/Strata/DL/Imperative/StmtSemantics.lean b/Strata/DL/Imperative/StmtSemantics.lean index d9c0dca3d3..2dbdade542 100644 --- a/Strata/DL/Imperative/StmtSemantics.lean +++ b/Strata/DL/Imperative/StmtSemantics.lean @@ -23,73 +23,70 @@ evaluation relation `EvalCmd`. -/ inductive EvalStmt (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - SemanticEval P → SemanticStore P → SemanticStore P → - Stmt P Cmd → SemanticStore P → Prop where + SemanticEval P → SemanticStore P → Stmt P Cmd → SemanticStore P → Prop where | cmd_sem : - EvalCmd δ σ₀ σ c σ' → + EvalCmd δ σ c σ' → -- We only require definedness on the statement level so that the requirement is fine-grained -- For example, if we require definedness on a block, then we won't be able to evaluate -- a block containing init x; havoc x, because it will require x to exist prior to the block isDefinedOver (HasVarsImp.modifiedVars) σ c → ---- - EvalStmt P Cmd EvalCmd δ σ₀ σ (Stmt.cmd c) σ' + EvalStmt P Cmd EvalCmd δ σ (Stmt.cmd c) σ' | block_sem : - EvalBlock P Cmd EvalCmd δ σ₀ σ b σ' → + EvalBlock P Cmd EvalCmd δ σ b σ' → ---- - EvalStmt P Cmd EvalCmd δ σ₀ σ (.block _ b) σ' + EvalStmt P Cmd EvalCmd δ σ (.block _ b) σ' | ite_true_sem : - δ σ₀ σ c = .some HasBool.tt → + δ σ c = .some HasBool.tt → WellFormedSemanticEvalBool δ → - EvalBlock P Cmd EvalCmd δ σ₀ σ t σ' → + EvalBlock P Cmd EvalCmd δ σ t σ' → ---- - EvalStmt P Cmd EvalCmd δ σ₀ σ (.ite c t e) σ' + EvalStmt P Cmd EvalCmd δ σ (.ite c t e) σ' | ite_false_sem : - δ σ₀ σ c = .some HasBool.ff → + δ σ c = .some HasBool.ff → WellFormedSemanticEvalBool δ → - EvalBlock P Cmd EvalCmd δ σ₀ σ e σ' → + EvalBlock P Cmd EvalCmd δ σ e σ' → ---- - EvalStmt P Cmd EvalCmd δ σ₀ σ (.ite c t e) σ' + EvalStmt P Cmd EvalCmd δ σ (.ite c t e) σ' -- (TODO): Define semantics of `goto`. inductive EvalStmts (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - SemanticEval P → SemanticStore P → SemanticStore P → - List (Stmt P Cmd) → SemanticStore P → Prop where + SemanticEval P → SemanticStore P → List (Stmt P Cmd) → SemanticStore P → Prop where | stmts_none_sem : - EvalStmts P _ _ δ σ₀ σ [] σ + EvalStmts P _ _ δ σ [] σ | stmts_some_sem : - EvalStmt P Cmd EvalCmd δ σ₀ σ s σ' → - EvalStmts P Cmd EvalCmd δ σ₀ σ' ss σ'' → - EvalStmts P Cmd EvalCmd δ σ₀ σ (s :: ss) σ'' + EvalStmt P Cmd EvalCmd δ σ s σ' → + EvalStmts P Cmd EvalCmd δ σ' ss σ'' → + EvalStmts P Cmd EvalCmd δ σ (s :: ss) σ'' inductive EvalBlock (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - SemanticEval P → SemanticStore P → SemanticStore P → - Block P Cmd → SemanticStore P → Prop where + SemanticEval P → SemanticStore P → Block P Cmd → SemanticStore P → Prop where | block_sem : - EvalStmts P Cmd EvalCmd δ σ₀ σ b.ss σ' → - EvalBlock P Cmd EvalCmd δ σ₀ σ b σ' + EvalStmts P Cmd EvalCmd δ σ b.ss σ' → + EvalBlock P Cmd EvalCmd δ σ b σ' end theorem eval_stmts_singleton [HasVarsImp P (List (Stmt P (Cmd P)))] [HasVarsImp P (Cmd P)] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ [cmd] σ' ↔ - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ cmd σ' := by + EvalStmts P (Cmd P) (EvalCmd P) δ σ [cmd] σ' ↔ + EvalStmt P (Cmd P) (EvalCmd P) δ σ cmd σ' := by constructor <;> intro Heval - cases Heval with | @stmts_some_sem _ _ _ _ σ1 _ _ Heval Hempty => + cases Heval with | @stmts_some_sem _ _ _ σ1 _ _ Heval Hempty => cases Hempty; assumption apply EvalStmts.stmts_some_sem Heval (EvalStmts.stmts_none_sem) theorem eval_stmts_concat [HasVarsImp P (List (Stmt P (Cmd P)))] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ cmds1 σ' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ' cmds2 σ'' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ (cmds1 ++ cmds2) σ'' := by + EvalStmts P (Cmd P) (EvalCmd P) δ σ cmds1 σ' → + EvalStmts P (Cmd P) (EvalCmd P) δ σ' cmds2 σ'' → + EvalStmts P (Cmd P) (EvalCmd P) δ σ (cmds1 ++ cmds2) σ'' := by intro Heval1 Heval2 induction cmds1 generalizing cmds2 σ simp only [List.nil_append] @@ -102,7 +99,7 @@ theorem eval_stmts_concat theorem EvalCmdDefMonotone [HasFvar P] [HasBool P] [HasNot P] : isDefined σ v → - EvalCmd P δ σ₀ σ c σ' → + EvalCmd P δ σ c σ' → isDefined σ' v := by intros Hdef Heval cases Heval <;> try exact Hdef @@ -111,9 +108,9 @@ theorem EvalCmdDefMonotone [HasFvar P] [HasBool P] [HasNot P] : next _ _ Hup => exact UpdateStateDefMonotone Hdef Hup theorem EvalStmtsEmpty {P : PureExpr} {Cmd : Type} {EvalCmd : EvalCmdParam P Cmd} - { σ σ' σ₀: SemanticStore P } { δ : SemanticEval P } + { σ σ': SemanticStore P } { δ : SemanticEval P } [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P Cmd EvalCmd δ σ₀ σ ([]: (List (Stmt P Cmd))) σ' → σ = σ' := by + EvalStmts P Cmd EvalCmd δ σ ([]: (List (Stmt P Cmd))) σ' → σ = σ' := by intros H; cases H <;> simp mutual @@ -121,7 +118,7 @@ theorem EvalStmtDefMonotone [HasVal P] [HasFvar P] [HasBool P] [HasBoolVal P] [HasNot P] : isDefined σ v → - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ s σ' → + EvalStmt P (Cmd P) (EvalCmd P) δ σ s σ' → isDefined σ' v := by intros Hdef Heval match s with @@ -147,7 +144,7 @@ theorem EvalStmtsDefMonotone [HasVal P] [HasFvar P] [HasBool P] [HasBoolVal P] [HasNot P] : isDefined σ v → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ ss σ' → + EvalStmts P (Cmd P) (EvalCmd P) δ σ ss σ' → isDefined σ' v := by intros Hdef Heval cases ss with diff --git a/Strata/DL/Imperative/StmtSemanticsSmallStep.lean b/Strata/DL/Imperative/StmtSemanticsSmallStep.lean index 028f5f5799..12abe26196 100644 --- a/Strata/DL/Imperative/StmtSemanticsSmallStep.lean +++ b/Strata/DL/Imperative/StmtSemanticsSmallStep.lean @@ -43,51 +43,51 @@ inductive StepStmt /-- Command: a command steps to terminal configuration if it evaluates successfully -/ | step_cmd : - EvalCmd δ σ₀ σ c σ' → + EvalCmd δ σ c σ' → ---- - StepStmt P EvalCmd δ σ₀ - (.stmt (.cmd c) σ₀) + StepStmt P EvalCmd δ σ + (.stmt (.cmd c) σ) (.terminal σ') /-- Block: a labeled block steps to its statement list -/ | step_block : - StepStmt P EvalCmd δ σ₀ + StepStmt P EvalCmd δ σ (.stmt (.block _ ⟨ss⟩ _) σ) (.stmts ss σ) /-- Conditional (true): if condition evaluates to true, step to then-branch -/ | step_ite_true : - δ σ₀ σ c = .some HasBool.tt → + δ σ c = .some HasBool.tt → WellFormedSemanticEvalBool δ → ---- - StepStmt P EvalCmd δ σ₀ + StepStmt P EvalCmd δ σ (.stmt (.ite c ⟨tss⟩ ⟨ess⟩ _) σ) (.stmts tss σ) /-- Conditional (false): if condition evaluates to false, step to else-branch -/ | step_ite_false : - δ σ₀ σ c = .some HasBool.ff → + δ σ c = .some HasBool.ff → WellFormedSemanticEvalBool δ → ---- - StepStmt P EvalCmd δ σ₀ + StepStmt P EvalCmd δ σ (.stmt (.ite c ⟨tss⟩ ⟨ess⟩ _) σ) (.stmts ess σ) /-- Loop (guard true): if guard is true, execute body then loop again -/ | step_loop_enter : - δ σ₀ σ g = .some HasBool.tt → + δ σ g = .some HasBool.tt → WellFormedSemanticEvalBool δ → ---- - StepStmt P EvalCmd δ σ₀ + StepStmt P EvalCmd δ σ (.stmt (.loop g m inv ⟨body⟩ md) σ) (.stmts (body ++ [.loop g m inv ⟨body⟩ md]) σ) /-- Loop (guard false): if guard is false, terminate the loop -/ | step_loop_exit : - δ σ₀ σ g = .some HasBool.ff → + δ σ g = .some HasBool.ff → WellFormedSemanticEvalBool δ → ---- - StepStmt P EvalCmd δ σ₀ + StepStmt P EvalCmd δ σ (.stmt (.loop g m inv ⟨body⟩ _) σ) (.terminal σ) @@ -95,16 +95,16 @@ inductive StepStmt /-- Empty statement list: no statements left to execute -/ | step_stmts_nil : - StepStmt P EvalCmd δ σ₀ + StepStmt P EvalCmd δ σ (.stmts [] σ) (.terminal σ) /-- Statement composition: after executing a statement, continue with remaining statements -/ | step_stmt_cons : - StepStmt P EvalCmd δ σ₀ (.stmt s σ) (.terminal σ') → + StepStmt P EvalCmd δ σ (.stmt s σ) (.terminal σ') → ---- - StepStmt P EvalCmd δ σ₀ + StepStmt P EvalCmd δ σ (.stmts (s :: ss) σ) (.stmts ss σ') @@ -120,11 +120,11 @@ inductive StepStmtStar [HasBool P] [HasNot P] : SemanticEval P → SemanticStore P → Config P CmdT → Config P CmdT → Prop where | refl : - StepStmtStar P EvalCmd δ σ₀ c c + StepStmtStar P EvalCmd δ σ c c | step : - StepStmt P EvalCmd δ σ₀ c₁ c₂ → - StepStmtStar P EvalCmd δ σ₀ c₂ c₃ → - StepStmtStar P EvalCmd δ σ₀ c₁ c₃ + StepStmt P EvalCmd δ σ c₁ c₂ → + StepStmtStar P EvalCmd δ σ c₂ c₃ → + StepStmtStar P EvalCmd δ σ c₁ c₃ /-- A statement evaluates successfully if it can step to a terminal configuration. @@ -137,10 +137,10 @@ def EvalStmtSmall [HasBool P] [HasNot P] (EvalCmd : EvalCmdParam P CmdT) (δ : SemanticEval P) - (σ₀ σ : SemanticStore P) + (σ σ : SemanticStore P) (s : Stmt P CmdT) (σ' : SemanticStore P) : Prop := - StepStmtStar P EvalCmd δ σ₀ (.stmt s σ) (.terminal σ') + StepStmtStar P EvalCmd δ σ (.stmt s σ) (.terminal σ') /-- A list of statements evaluates successfully if it can step to a terminal configuration. @@ -152,10 +152,10 @@ def EvalStmtsSmall [HasBool P] [HasNot P] (EvalCmd : EvalCmdParam P CmdT) (δ : SemanticEval P) - (σ₀ σ : SemanticStore P) + (σ σ : SemanticStore P) (ss : List (Stmt P CmdT)) (σ' : SemanticStore P) : Prop := - StepStmtStar P EvalCmd δ σ₀ (.stmts ss σ) (.terminal σ') + StepStmtStar P EvalCmd δ σ (.stmts ss σ) (.terminal σ') --------------------------------------------------------------------- @@ -170,9 +170,9 @@ theorem evalStmtsSmallNil [HasVarsImp P CmdT] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] (δ : SemanticEval P) - (σ₀ σ : SemanticStore P) + (σ σ : SemanticStore P) (EvalCmd : EvalCmdParam P CmdT) : - EvalStmtsSmall P EvalCmd δ σ₀ σ [] σ := by + EvalStmtsSmall P EvalCmd δ σ σ [] σ := by unfold EvalStmtsSmall apply StepStmtStar.step · exact StepStmt.step_stmts_nil @@ -188,10 +188,10 @@ def IsTerminal [HasVarsImp P CmdT] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] (δ : SemanticEval P) - (σ₀ : SemanticStore P) + (σ : SemanticStore P) (EvalCmd : EvalCmdParam P CmdT) (c : Config P CmdT) : Prop := - ∀ c', ¬ StepStmt P EvalCmd δ σ₀ c c' + ∀ c', ¬ StepStmt P EvalCmd δ σ c c' /-- Terminal configurations are indeed terminal. @@ -202,10 +202,10 @@ theorem terminalIsTerminal [HasVarsImp P (List (Stmt P CmdT))] [HasVarsImp P CmdT] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] - (σ σ₀ : SemanticStore P) + (σ σ : SemanticStore P) (δ : SemanticEval P) (EvalCmd : EvalCmdParam P CmdT) : - IsTerminal P δ σ₀ EvalCmd (.terminal σ) := by + IsTerminal P δ σ EvalCmd (.terminal σ) := by intro c' h cases h diff --git a/Strata/Languages/Boogie/StatementSemantics.lean b/Strata/Languages/Boogie/StatementSemantics.lean index 49f6d4855e..e744c02d09 100644 --- a/Strata/Languages/Boogie/StatementSemantics.lean +++ b/Strata/Languages/Boogie/StatementSemantics.lean @@ -47,31 +47,30 @@ instance : HasNot Boogie.Expression where abbrev BoogieEval := SemanticEval Expression abbrev BoogieStore := SemanticStore Expression -def WellFormedBoogieEvalCong (δ : BoogieEval) : Prop := - (∀ e₁ e₁' σ₀ σ σ₀' σ' m, - δ σ₀ σ e₁ = δ σ₀' σ' e₁' → - (∀ ty, δ σ₀ σ (.abs m ty e₁) = δ σ₀' σ' (.abs m ty e₁')) ∧ +def WellFormedBoogieEvalCong (δ : BoogieEval) + : Prop := + (∀ σ σ' e₁ e₁' , + δ σ e₁ = δ σ' e₁' → + (∀ ty m, δ σ (.abs ty m e₁) = δ σ' (.abs ty m e₁'))) ∧ -- binary congruence - (∀ e₂ e₂', - δ σ₀ σ e₂ = δ σ₀' σ' e₂' → - δ σ₀ σ (.app m e₁ e₂) = δ σ₀' σ' (.app m e₁' e₂') ∧ - δ σ₀ σ (.eq m e₁ e₂) = δ σ₀' σ' (.eq m e₁' e₂') ∧ - (∀ k ty, δ σ₀ σ (.quant m k ty e₁ e₂) = δ σ₀' σ' (.quant m k ty e₁' e₂')) ∧ + (∀ σ σ' e₂ e₂', + δ σ e₂ = δ σ' e₂' → + (∀ e₁ e₁' m, δ σ (.app m e₁ e₂) = δ σ' (.app m e₁' e₂')) ∧ + (∀ e₁ e₁' m, δ σ (.eq m e₁ e₂) = δ σ' (.eq m e₁' e₂')) ∧ + (∀ e₁ e₁' m k ty, δ σ (.quant m k ty e₁ e₂) = δ σ' (.quant m k ty e₁' e₂'))) ∧ -- ternary congruence - (∀ e₃ e₃', - δ σ₀ σ e₃ = δ σ₀' σ' e₃' → - δ σ₀ σ (.ite m e₃ e₁ e₂) = δ σ₀' σ' (.ite m e₃' e₁' e₂') - )) - ) + (∀ σ σ' e₃ e₃', + δ σ e₃ = δ σ' e₃' → + (∀ e₁ e₁' e₂ e₂' m, δ σ (.ite m e₃ e₁ e₂) = δ σ' (.ite m e₃' e₁' e₂'))) -inductive EvalExpressions {P} [HasVarsPure P P.Expr] : SemanticEval P → SemanticStore P → SemanticStore P → List P.Expr → List P.Expr → Prop where +inductive EvalExpressions {P} [HasVarsPure P P.Expr] : SemanticEval P → SemanticStore P → List P.Expr → List P.Expr → Prop where | eval_none : - EvalExpressions δ σ₀ σ [] [] + EvalExpressions δ σ [] [] | eval_some : isDefined σ (HasVarsPure.getVars e) → - δ σ₀ σ e = .some v → - EvalExpressions δ σ₀ σ es vs → - EvalExpressions δ σ₀ σ (e :: es) (v :: vs) + δ σ e = .some v → + EvalExpressions δ σ es vs → + EvalExpressions δ σ (e :: es) (v :: vs) inductive ReadValues : SemanticStore P → List P.Ident → List P.Expr → Prop where | read_none : @@ -161,24 +160,27 @@ def updatedStates def WellFormedBoogieEvalTwoState (δ : BoogieEval) (σ₀ σ : BoogieStore) : Prop := open Boogie.OldExpressions in (∃ vs vs' σ₁, HavocVars σ₀ vs σ₁ ∧ InitVars σ₁ vs' σ) ∧ - (∀ vs vs' σ₀ σ₁ σ m, + (∀ vs vs' σ₀ σ₁ σ, (HavocVars σ₀ vs σ₁ ∧ InitVars σ₁ vs' σ) → - -- if the variable is modified, then old variable should lookup in the old store - ∀ v mOp mVar, - (v ∈ vs → ∀ oty ty, δ σ₀ σ (@oldVar m (tyold := oty) mOp mVar v (tyv := ty)) = σ₀ v) ∧ + ∀ v, + (v ∈ vs → + ∀ oty mApp mOp mVar v ty, + δ σ (@oldVar (tyold := oty) mApp mOp mVar v ty) = σ₀ v) ∧ -- if the variable is not modified, then old variable is identity - (¬ v ∈ vs → ∀ oty ty, δ σ₀ σ (@oldVar m (tyold := oty) mOp mVar v (tyv := ty)) = σ v)) ∧ + (¬ v ∈ vs → + ∀ oty mApp mOp mVar v ty, + δ σ (@oldVar (tyold := oty) mApp mOp mVar v ty) = σ v)) ∧ -- evaluating on an old complex expression is the same as evlauating on its normal form -- TODO: can possibly break this into more sub-components, proving it using congruence and normalization property -- Might not be needed if we assume all expressions are normalized - (∀ e σ₀ σ, δ σ₀ σ e = δ σ₀ σ (normalizeOldExpr e)) + (∀ e σ, δ σ e = δ σ (normalizeOldExpr e)) inductive EvalCommand : (String → Option Procedure) → BoogieEval → - BoogieStore → BoogieStore → Command → BoogieStore → Prop where - | cmd_sem {π δ σ₀ σ c σ'} : - Imperative.EvalCmd (P:=Expression) δ σ₀ σ c σ' → + BoogieStore → Command → BoogieStore → Prop where + | cmd_sem {π δ σ c σ'} : + Imperative.EvalCmd (P:=Expression) δ σ c σ' → ---- - EvalCommand π δ σ₀ σ (CmdExt.cmd c) σ' + EvalCommand π δ σ (CmdExt.cmd c) σ' /- NOTE: If π is NOT the first implicit variable below, Lean complains as @@ -193,7 +195,7 @@ inductive EvalCommand : (String → Option Procedure) → BoogieEval → -/ | call_sem {π δ σ₀ σ args vals oVals σA σAO σR n p modvals lhs σ'} : π n = .some p → - EvalExpressions (P:=Expression) δ σ₀ σ args vals → + EvalExpressions (P:=Expression) δ σ args vals → ReadValues σ lhs oVals → WellFormedSemanticEvalVal δ → WellFormedSemanticEvalVar δ → @@ -213,36 +215,36 @@ inductive EvalCommand : (String → Option Procedure) → BoogieEval → -- Preconditions, if any, must be satisfied for execution to continue. (∀ pre, (Procedure.Spec.getCheckExprs p.spec.preconditions).contains pre → isDefinedOver (HasVarsPure.getVars) σAO pre ∧ - δ σAO σAO pre = .some HasBool.tt) → - @Imperative.EvalStmts Expression Command (EvalCommand π) _ _ _ _ _ _ δ σAO σAO p.body σR → + δ σAO pre = .some HasBool.tt) → + @Imperative.EvalStmts Expression Command (EvalCommand π) _ _ _ _ _ _ δ σAO p.body σR → -- Postconditions, if any, must be satisfied for execution to continue. (∀ post, (Procedure.Spec.getCheckExprs p.spec.postconditions).contains post → isDefinedOver (HasVarsPure.getVars) σAO post ∧ - δ σAO σR post = .some HasBool.tt) → + δ σR post = .some HasBool.tt) → ReadValues σR (ListMap.keys (p.header.outputs) ++ p.spec.modifies) modvals → UpdateStates σ (lhs ++ p.spec.modifies) modvals σ' → ---- - EvalCommand π δ σ₀ σ (CmdExt.call lhs n args) σ' + EvalCommand π δ σ (CmdExt.call lhs n args) σ' abbrev EvalStatement (π : String → Option Procedure) : BoogieEval → - BoogieStore → BoogieStore → Statement → BoogieStore → Prop := + BoogieStore → Statement → BoogieStore → Prop := Imperative.EvalStmt Expression Command (EvalCommand π) abbrev EvalStatements (π : String → Option Procedure) : BoogieEval → - BoogieStore → BoogieStore → List Statement → BoogieStore → Prop := + BoogieStore → List Statement → BoogieStore → Prop := Imperative.EvalStmts Expression Command (EvalCommand π) inductive EvalCommandContract : (String → Option Procedure) → BoogieEval → - BoogieStore → BoogieStore → Command → BoogieStore → Prop where - | cmd_sem {π δ σ₀ σ c σ'} : - Imperative.EvalCmd (P:=Expression) δ σ₀ σ c σ' → + BoogieStore → Command → BoogieStore → Prop where + | cmd_sem {π δ σ c σ'} : + Imperative.EvalCmd (P:=Expression) δ σ c σ' → ---- - EvalCommandContract π δ σ₀ σ (CmdExt.cmd c) σ' + EvalCommandContract π δ σ (CmdExt.cmd c) σ' - | call_sem {π δ σ₀ σ args oVals vals σA σAO σO σR n p modvals lhs σ'} : + | call_sem {π δ σ args oVals vals σA σAO σO σR n p modvals lhs σ'} : π n = .some p → - EvalExpressions (P:=Boogie.Expression) δ σ₀ σ args vals → + EvalExpressions (P:=Boogie.Expression) δ σ args vals → ReadValues σ lhs oVals → WellFormedSemanticEvalVal δ → WellFormedSemanticEvalVar δ → @@ -262,22 +264,22 @@ inductive EvalCommandContract : (String → Option Procedure) → BoogieEval -- Preconditions, if any, must be satisfied for execution to continue. (∀ pre, (Procedure.Spec.getCheckExprs p.spec.preconditions).contains pre → isDefinedOver (HasVarsPure.getVars) σAO pre ∧ - δ σAO σAO pre = .some HasBool.tt) → + δ σAO pre = .some HasBool.tt) → HavocVars σAO (ListMap.keys p.header.outputs) σO → HavocVars σO p.spec.modifies σR → -- Postconditions, if any, must be satisfied for execution to continue. (∀ post, (Procedure.Spec.getCheckExprs p.spec.postconditions).contains post → isDefinedOver (HasVarsPure.getVars) σAO post ∧ - δ σO σR post = .some HasBool.tt) → + δ σR post = .some HasBool.tt) → ReadValues σR (ListMap.keys (p.header.outputs) ++ p.spec.modifies) modvals → UpdateStates σ (lhs ++ p.spec.modifies) modvals σ' → ---- - EvalCommandContract π δ σ₀ σ (.call lhs n args) σ' + EvalCommandContract π δ σ (.call lhs n args) σ' abbrev EvalStatementContract (π : String → Option Procedure) : BoogieEval → - BoogieStore → BoogieStore → Statement → BoogieStore → Prop := + BoogieStore → Statement → BoogieStore → Prop := Imperative.EvalStmt Expression Command (EvalCommandContract π) abbrev EvalStatementsContract (π : String → Option Procedure) : BoogieEval → - BoogieStore → BoogieStore → List Statement → BoogieStore → Prop := + BoogieStore → List Statement → BoogieStore → Prop := Imperative.EvalStmts Expression Command (EvalCommandContract π) diff --git a/Strata/Languages/Boogie/StatementSemanticsProps.lean b/Strata/Languages/Boogie/StatementSemanticsProps.lean index a678913b3c..f3d82f71d3 100644 --- a/Strata/Languages/Boogie/StatementSemanticsProps.lean +++ b/Strata/Languages/Boogie/StatementSemanticsProps.lean @@ -40,17 +40,17 @@ theorem TouchVarsEmpty : intros H; cases H <;> simp theorem EvalStmtsEmpty {P : PureExpr} {Cmd : Type} {EvalCmd : EvalCmdParam P Cmd} - { σ σ' σ₀: SemanticStore P } { δ : SemanticEval P } + { σ σ': SemanticStore P } { δ : SemanticEval P } [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P Cmd EvalCmd δ σ₀ σ ([]: (List (Stmt P Cmd))) σ' → σ = σ' := by + EvalStmts P Cmd EvalCmd δ σ ([]: (List (Stmt P Cmd))) σ' → σ = σ' := by intros H; cases H <;> simp theorem EvalStatementsEmpty : - EvalStatements π δ σ₀ σ [] σ' → σ = σ' := by + EvalStatements π δ σ [] σ' → σ = σ' := by intros H; cases H <;> simp theorem EvalStatementsContractEmpty : - EvalStatementsContract π δ σ₀ σ [] σ' → σ = σ' := by + EvalStatementsContract π δ σ [] σ' → σ = σ' := by intros H; cases H <;> simp theorem UpdateStateNotDefMonotone @@ -610,7 +610,7 @@ theorem ReadValuesLength : induction Hrd <;> simp_all theorem EvalExpressionsLength : - EvalExpressions (P:=Boogie.Expression) δ σ σ₀ ks vs → + EvalExpressions (P:=Boogie.Expression) δ σ ks vs → ks.length = vs.length := by intros Hrd induction Hrd <;> simp_all @@ -1311,10 +1311,10 @@ theorem ReadValuesSubstStores : . exact ih Ht Ht' theorem EvalStatementsContractApp' : - EvalStatementsContract π δ σ₀ σ (ss₁ ++ ss₂) σ'' → + EvalStatementsContract π δ σ (ss₁ ++ ss₂) σ'' → ∃ σ', - EvalStatementsContract π δ σ₀ σ ss₁ σ' ∧ - EvalStatementsContract π δ σ₀ σ' ss₂ σ'' := by + EvalStatementsContract π δ σ ss₁ σ' ∧ + EvalStatementsContract π δ σ' ss₂ σ'' := by intros Heval induction ss₁ generalizing σ <;> simp_all case nil => @@ -1332,9 +1332,9 @@ theorem EvalStatementsContractApp' : exact EvalStmts.stmts_some_sem Hh Heval.1 theorem EvalStatementsContractApp : - EvalStatementsContract π δ σ₀ σ ss₁ σ' → - EvalStatementsContract π δ σ₀ σ' ss₂ σ'' → - EvalStatementsContract π δ σ₀ σ (ss₁ ++ ss₂) σ'' := by + EvalStatementsContract π δ σ ss₁ σ' → + EvalStatementsContract π δ σ' ss₂ σ'' → + EvalStatementsContract π δ σ (ss₁ ++ ss₂) σ'' := by intros Heval1 Heval2 induction ss₁ generalizing σ <;> simp_all case nil => @@ -1349,16 +1349,16 @@ theorem EvalStatementsContractApp : exact Heval' theorem EvalStatementsApp : - EvalStatements π δ σ₀ σ ss₁ σ' → - EvalStatements π δ σ₀ σ' ss₂ σ'' → - EvalStatements π δ σ₀ σ (ss₁ ++ ss₂) σ'' := by + EvalStatements π δ σ ss₁ σ' → + EvalStatements π δ σ' ss₂ σ'' → + EvalStatements π δ σ (ss₁ ++ ss₂) σ'' := by apply Nat.strongRecOn (motive := λ m ↦ ∀ ss₁ ss₂ σ σ' σ'', sizeOf (ss₁ ++ ss₂) = m → - EvalStatements π δ σ₀ σ ss₁ σ' → - EvalStatements π δ σ₀ σ' ss₂ σ'' → - EvalStatements π δ σ₀ σ (ss₁ ++ ss₂) σ'') + EvalStatements π δ σ ss₁ σ' → + EvalStatements π δ σ' ss₂ σ'' → + EvalStatements π δ σ (ss₁ ++ ss₂) σ'') (sizeOf (ss₁ ++ ss₂)) intros n ih ss₁ ss₂ σ σ' σ'' Hsize Heval1 Heval2 . cases Heval1 with @@ -1707,7 +1707,7 @@ theorem HavocVarsDefined : theorem EvalCmdDefMonotone : isDefined σ v → - EvalCmd Boogie.Expression δ σ₀ σ c σ' → + EvalCmd Boogie.Expression δ σ c σ' → isDefined σ' v := by intros Hdef Heval cases Heval <;> try exact Hdef @@ -1717,7 +1717,7 @@ theorem EvalCmdDefMonotone : theorem EvalCmdTouch [HasVal P] [HasFvar P] [HasBool P] [HasBoolVal P] [HasNot P] : - EvalCmd P δ σ₀ σ c σ' → + EvalCmd P δ σ c σ' → TouchVars σ (HasVarsImp.touchedVars c) σ' := by intro Heval induction Heval <;> simp [HasVarsImp.touchedVars, Cmd.definedVars, Cmd.modifiedVars] @@ -1766,8 +1766,8 @@ theorem UpdateStatesTouchVars : UpdateStates σ vars modvals σ' → TouchVars apply Hup2 theorem EvalCmdRefinesContract : -EvalCmd Expression δ σ₀ σ c σ' → -EvalCommandContract π δ σ₀ σ (CmdExt.cmd c) σ' := by +EvalCmd Expression δ σ c σ' → +EvalCommandContract π δ σ (CmdExt.cmd c) σ' := by intros H; constructor; assumption theorem InvStoresUpdatedStateDisjRightMono : @@ -2017,19 +2017,19 @@ NOTE: variables (that is, lhs ++ modifies) -/ theorem EvalCallBodyRefinesContract : - ∀ {π δ σ₀ σ lhs n args σ' p}, + ∀ {π δ σ lhs n args σ' p}, π n = .some p → p.spec.modifies = Imperative.HasVarsTrans.modifiedVarsTrans π p.body → - EvalCommand π δ σ₀ σ (CmdExt.call lhs n args) σ' → - EvalCommandContract π δ σ₀ σ (CmdExt.call lhs n args) σ' := by - intros π δ σ₀ σ lhs n args σ' p pFound modValid H + EvalCommand π δ σ (CmdExt.call lhs n args) σ' → + EvalCommandContract π δ σ (CmdExt.call lhs n args) σ' := by + intros π δ σ lhs n args σ' p pFound modValid H cases H with | call_sem lkup Heval Hwfval Hwfvars Hwfb Hwf Hwf2 Hup Hhav Hpre Heval2 Hpost Hrd Hup2 => sorry theorem EvalCommandRefinesContract : -EvalCommand π δ σ₀ σ c σ' → -EvalCommandContract π δ σ₀ σ c σ' := by +EvalCommand π δ σ c σ' → +EvalCommandContract π δ σ c σ' := by intros H cases H with | cmd_sem H => exact EvalCommandContract.cmd_sem H @@ -2042,8 +2042,8 @@ EvalCommandContract π δ σ₀ σ c σ' := by /-- NOTE: should follow the same approach as `DetToNondetCorrect` to prove this mutually recursive theorem due to meta variable bug -/ theorem EvalStmtsRefinesContract : - EvalStmts Expression Command (EvalCommand π) δ σ₀ σ ss σ' → - EvalStmts Expression Command (EvalCommandContract π) δ σ₀ σ ss σ' := by + EvalStmts Expression Command (EvalCommand π) δ σ ss σ' → + EvalStmts Expression Command (EvalCommandContract π) δ σ ss σ' := by intros Heval cases ss case nil => @@ -2063,8 +2063,8 @@ theorem EvalStmtsRefinesContract : all_goals simp_all <;> omega theorem EvalStmtRefinesContract : - EvalStmt Expression Command (EvalCommand π) δ σ₀ σ s σ' → - EvalStmt Expression Command (EvalCommandContract π) δ σ₀ σ s σ' := by + EvalStmt Expression Command (EvalCommand π) δ σ s σ' → + EvalStmt Expression Command (EvalCommandContract π) δ σ s σ' := by intros H cases H with | cmd_sem Hdef Heval => @@ -2095,7 +2095,7 @@ theorem EvalStmtRefinesContract : theorem EvalExpressionIsDefined : WellFormedBoogieEvalCong δ → WellFormedSemanticEvalVar δ → - (δ σ₀ σ e).isSome → + (δ σ e).isSome → isDefined σ (HasVarsPure.getVars e) := by intros Hwfc Hwfvr Hsome intros v Hin @@ -2104,7 +2104,7 @@ theorem EvalExpressionIsDefined : induction e generalizing v <;> simp [HasVarsPure.getVars, Lambda.LExpr.LExpr.getVars] at * case fvar m v' ty' => - specialize Hwfvr (Lambda.LExpr.fvar m v' ty') v' σ₀ σ + specialize Hwfvr (Lambda.LExpr.fvar m v' ty') v' σ simp [HasFvar.getFvar] at Hwfvr simp_all case abs => sorry diff --git a/Strata/Transform/CallElimCorrect.lean b/Strata/Transform/CallElimCorrect.lean index 5a0c4c3b29..178af76a3e 100644 --- a/Strata/Transform/CallElimCorrect.lean +++ b/Strata/Transform/CallElimCorrect.lean @@ -340,8 +340,8 @@ Imperative.WellFormedSemanticEvalVar δ → Boogie.WellFormedBoogieEvalCong δ → Imperative.WellFormedSemanticEvalVal δ → ¬ k ∈ (Imperative.HasVarsPure.getVars e) → -δ σ₀ σ e = some v' → -δ σ₀ (updatedState σ k v) e = some v' := by +δ σ e = some v' → +δ (updatedState σ k v) e = some v' := by intros Hwfv Hwfc Hwfvl Hnin Hsome simp [Imperative.WellFormedSemanticEvalVar, Imperative.HasFvar.getFvar] at Hwfv simp [Boogie.WellFormedBoogieEvalCong] at Hwfc @@ -354,37 +354,30 @@ Imperative.WellFormedSemanticEvalVal δ → case fvar m n ty => simp [Hwfv] simp [updatedState] - intros Heq - simp [Heq] - simp_all + grind case abs m ty e ih => - apply ((Hwfc e e σ₀ (updatedState σ k v) σ₀ σ) m ?_).1 - apply ih ; simp_all + apply ((Hwfc.1 (updatedState σ k v) σ)) + grind case quant m kk ty tr e trih eih => - apply ((Hwfc tr tr σ₀ (updatedState σ k v) σ₀ σ m ?_).2 e e ?_).2.2.1 - apply trih ; simp_all - apply eih ; simp_all + apply ((Hwfc.2.1 (updatedState σ k v) σ) e e ?_).2.2 + grind case app m fn e fnih eih => - apply (((Hwfc fn fn σ₀ (updatedState σ k v) σ₀ σ) m ?_).2 e e ?_).1 - apply fnih ; simp_all - apply eih ; simp_all + apply ((Hwfc.2.1 (updatedState σ k v) σ) e e ?_).1 + grind case ite m c t e cih tih eih => - apply (((Hwfc t t σ₀ (updatedState σ k v) σ₀ σ) m ?_).2 e e ?_).2.2.2 c c ?_ - apply tih ; simp_all - apply eih ; simp_all - apply cih ; simp_all + apply (((Hwfc.2.2 (updatedState σ k v) σ))) + grind case eq m e1 e2 e1ih e2ih => - apply (((Hwfc e1 e1 σ₀ (updatedState σ k v) σ₀ σ) m ?_).2 e2 e2 ?_).2.1 - apply e1ih ; simp_all - apply e2ih ; simp_all + apply ((Hwfc.2.1 (updatedState σ k v) σ) e2 e2 ?_).2.1 + grind theorem EvalExpressionsUpdatedState {δ : BoogieEval} : Imperative.WellFormedSemanticEvalVar δ → Boogie.WellFormedBoogieEvalCong δ → Imperative.WellFormedSemanticEvalVal δ → ¬ k ∈ es.flatMap Imperative.HasVarsPure.getVars → - EvalExpressions (P:=Boogie.Expression) δ σ₀ σ es vs → - EvalExpressions (P:=Boogie.Expression) δ σ₀ (updatedState σ k v) es vs := by + EvalExpressions (P:=Boogie.Expression) δ σ es vs → + EvalExpressions (P:=Boogie.Expression) δ (updatedState σ k v) es vs := by intros Hwfv Hwfc Hwfvl Hnin Heval have Hlen := EvalExpressionsLength Heval induction es generalizing vs σ @@ -410,8 +403,8 @@ theorem EvalExpressionUpdatedStates {δ : BoogieEval} : ks'.length = vs'.length → ks'.Nodup → ks'.Disjoint (Imperative.HasVarsPure.getVars e) → - δ σ₀ σ e = some v → - δ σ₀ (updatedStates σ ks' vs') e = some v := by + δ σ e = some v → + δ (updatedStates σ ks' vs') e = some v := by intros Hwfv Hwfc Hwfvl Hlen Hnd Hnin Heval induction ks' generalizing vs' σ case nil => @@ -441,8 +434,8 @@ theorem EvalExpressionsUpdatedStates {δ : BoogieEval} : ks'.length = vs'.length → ks'.Nodup → ks'.Disjoint (es.flatMap Imperative.HasVarsPure.getVars) → - EvalExpressions (P:=Boogie.Expression) δ σ₀ σ es vs → - EvalExpressions (P:=Boogie.Expression) δ σ₀ (updatedStates σ ks' vs') es vs := by + EvalExpressions (P:=Boogie.Expression) δ σ es vs → + EvalExpressions (P:=Boogie.Expression) δ (updatedStates σ ks' vs') es vs := by intros Hwfv Hwfc Hwfvl Hlen Hnd Hnin Heval have Hlen := EvalExpressionsLength Heval induction ks' generalizing vs' σ @@ -623,7 +616,7 @@ theorem EvalStatementContractInitVar : Imperative.WellFormedSemanticEvalVar δ → σ v = some vv → σ v' = none → - EvalStatementContract π δ σ₀ σ + EvalStatementContract π δ σ (createInitVar ((v', ty), v)) (updatedState σ v' vv) := by intros Hwf Hsome Hnone @@ -631,7 +624,7 @@ theorem EvalStatementContractInitVar : constructor constructor . apply Imperative.EvalCmd.eval_init <;> try assumption - have Hwfv := Hwf (Lambda.LExpr.fvar () v none) v σ₀ σ + have Hwfv := Hwf (Lambda.LExpr.fvar () v none) v σ rw [Hwfv]; assumption simp [Imperative.HasFvar.getFvar] apply Imperative.InitState.init Hnone @@ -652,7 +645,7 @@ theorem EvalStatementsContractInitVars : List.Nodup ((trips.unzip.fst.unzip.fst) ++ (trips.unzip.snd)) → ReadValues σ (trips.unzip.snd) vvs → Imperative.isNotDefined σ (trips.unzip.fst.unzip.fst) → - EvalStatementsContract π δ σ₀ σ + EvalStatementsContract π δ σ (createInitVars trips) (updatedStates σ (trips.unzip.fst.unzip.fst) vvs) := by @@ -691,9 +684,9 @@ theorem EvalStatementsContractInitVars : theorem EvalStatementContractInit : Imperative.WellFormedSemanticEvalVar δ → - δ σ₀ σ e = some vv → + δ σ e = some vv → σ v' = none → - EvalStatementContract π δ σ₀ σ + EvalStatementContract π δ σ (createInit ((v', ty), e)) (updatedState σ v' vv) := by intros Hwf Hsome Hnone @@ -720,10 +713,10 @@ theorem EvalStatementsContractInits : -- the generated old variable names shouldn't overlap with original variables trips.unzip.1.unzip.1.Disjoint (List.flatMap (Imperative.HasVarsPure.getVars (P:=Expression)) trips.unzip.2) → List.Nodup (trips.unzip.1.unzip.1) → - EvalExpressions (P:=Boogie.Expression) δ σ₀ σ (trips.unzip.2) vvs → + EvalExpressions (P:=Boogie.Expression) δ σ (trips.unzip.2) vvs → -- ReadValues σ (trips.unzip.2) vvs → Imperative.isNotDefined σ (trips.unzip.1.unzip.1) → - EvalStatementsContract π δ σ₀ σ + EvalStatementsContract π δ σ (createInits trips) (updatedStates σ (trips.unzip.1.unzip.1) vvs) := by @@ -764,7 +757,7 @@ theorem EvalStatementContractHavocUpdated : ∀ vv, Imperative.WellFormedSemanticEvalVar δ → σ v = some vv' → - EvalStatementContract π δ σ₀ σ + EvalStatementContract π δ σ (createHavoc v) (updatedState σ v vv) := by intros vv Hwf Hsome @@ -813,7 +806,7 @@ theorem createFvarsSubstStores : Imperative.substDefined σ σA (ks1.zip ks2) → Imperative.substStores σ σA (ks1.zip ks2) → ReadValues σA ks2 argVals → - EvalExpressions (P:=Boogie.Expression) δ σ₀ σ (createFvars ks1) argVals := by + EvalExpressions (P:=Boogie.Expression) δ σ (createFvars ks1) argVals := by intros Hlen Hwfv Hdef Hsubst Hrd simp [createFvars] have Hlen2 := ReadValuesLength Hrd @@ -852,7 +845,7 @@ theorem EvalStatementsContractHavocVars : Imperative.WellFormedSemanticEvalVar δ → Imperative.isDefined σ vs → HavocVars σ vs σ' → - EvalStatementsContract π δ σ₀ σ + EvalStatementsContract π δ σ (createHavocs vs) σ' := by intros Hwfv Hdef Hhav simp [createHavocs] @@ -1133,7 +1126,7 @@ theorem Lambda.LExpr.substFvarCorrect : ((@Imperative.HasVarsPure.getVars Expression _ _ e).removeAll [fro]) → -- NOTE: the old store is irrelevant because we assume congruence on old expressions as well, -- More relation between the old store would be needed if we remove old expression congruence from WellFormedSemanticEvalVal - δ σ₀ σ e = δ σ₀' σ' (e.substFvar fro (createFvar to)) := by + δ σ e = δ σ' (e.substFvar fro (createFvar to)) := by intros Hwfc Hwfvr Hwfvl Hsubst2 Hinv induction e <;> simp [Lambda.LExpr.substFvar, createFvar] at * case const c | op o ty | bvar x => @@ -1163,8 +1156,8 @@ theorem Lambda.LExpr.substFvarCorrect : simp [Boogie.WellFormedBoogieEvalCong] at Hwfc specialize ih Hinv have e2 := (e.substFvar fro (Lambda.LExpr.fvar () to none)) - have Hwfcx := Hwfc e ((e.substFvar fro (Lambda.LExpr.fvar () to none))) σ₀ σ σ₀' σ' m ih |>.1 - apply Hwfcx + have Hwfc := Hwfc.1 σ σ' e ((e.substFvar fro (Lambda.LExpr.fvar () to none))) + grind case quant m k ty tr e trih eih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc simp [Imperative.invStores, Imperative.substStores, @@ -1180,11 +1173,9 @@ theorem Lambda.LExpr.substFvarCorrect : rw [Hinv] left; assumption - have Hwfc := Hwfc tr (tr.substFvar fro (Lambda.LExpr.fvar () to none)) σ₀ σ σ₀' σ' m trih - have Hfun := Hwfc.2 - specialize Hfun _ _ eih - have Hfun := Hfun.2.2.1 - exact (Hfun k ty) + have Hwfc := Hwfc.2.1 σ σ' e (e.substFvar fro (Lambda.LExpr.fvar () to none)) + have Hwfc := Hwfc eih + grind case app m c fn fih eih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc simp [Imperative.invStores, Imperative.substStores, @@ -1198,11 +1189,9 @@ theorem Lambda.LExpr.substFvarCorrect : . intros k1 k2 Hin rw [Hinv] right; assumption - have Hwfc := Hwfc c (c.substFvar fro (Lambda.LExpr.fvar () to none)) σ₀ σ σ₀' σ' m fih - have Hfun := Hwfc.2 - specialize Hfun _ _ eih - have Hfun := Hfun.1 - exact Hfun + have Hwfc := Hwfc.2.1 σ σ' fn (fn.substFvar fro (Lambda.LExpr.fvar () to none)) + have Hwfc := (Hwfc eih).1 + grind case ite m c t e cih tih eih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc simp [Imperative.invStores, Imperative.substStores, @@ -1220,12 +1209,8 @@ theorem Lambda.LExpr.substFvarCorrect : . intros k1 k2 Hin rw [Hinv] right; right; assumption - have Hwfc := Hwfc t (t.substFvar fro (Lambda.LExpr.fvar () to none)) σ₀ σ σ₀' σ' m tih - have Hfun := Hwfc.2 - specialize Hfun _ _ eih - have Hfun := Hfun.2.2.2 - specialize Hfun _ _ cih - exact Hfun + have Hwfc := Hwfc.2.2 σ σ' c (c.substFvar fro (Lambda.LExpr.fvar () to none)) cih + grind case eq m e1 e2 e1ih e2ih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc simp [Imperative.invStores, Imperative.substStores, @@ -1239,18 +1224,15 @@ theorem Lambda.LExpr.substFvarCorrect : . intros k1 k2 Hin rw [Hinv] right; assumption - specialize Hwfc e1 (e1.substFvar fro (Lambda.LExpr.fvar () to none)) σ₀ σ σ₀' σ' m e1ih - have Hfun := Hwfc.2 - specialize Hfun _ _ e2ih - have Hfun := Hfun.2.1 - exact Hfun + have Hwfc := Hwfc.2.1 σ σ' e2 (e2.substFvar fro (Lambda.LExpr.fvar () to none)) e2ih + grind theorem Lambda.LExpr.substFvarsCorrectZero : Boogie.WellFormedBoogieEvalCong δ → Imperative.WellFormedSemanticEvalVar δ → Imperative.WellFormedSemanticEvalVal δ → Imperative.invStores σ σ' (Imperative.HasVarsPure.getVars e) → - δ σ₀ σ e = δ σ₀' σ' e := by + δ σ e = δ σ' e := by intros Hwfc Hwfvr Hwfvl Hinv induction e <;> simp at * case const c | op o ty | bvar x => @@ -1270,8 +1252,8 @@ theorem Lambda.LExpr.substFvarsCorrectZero : case abs m ty e ih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc specialize ih Hinv - have Hwfc := Hwfc e e σ₀ σ σ₀' σ' m ih - apply Hwfc.1 + have Hwfc := Hwfc.1 σ σ' e e ih + apply Hwfc case quant m k ty tr e trih eih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc simp [Imperative.invStores, Imperative.substStores, @@ -1285,11 +1267,8 @@ theorem Lambda.LExpr.substFvarsCorrectZero : . intros k1 k2 Hin rw [Hinv] right; assumption - have Hwfc := Hwfc tr tr σ₀ σ σ₀' σ' m trih - have Hfun := Hwfc.2 - specialize Hfun _ _ eih - have Hfun := Hfun.2.2.1 - exact (Hfun k ty) + have Hwfc := (Hwfc.2.1 σ σ' e e eih).2.2 + apply Hwfc case app m fn e fih eih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc simp [Imperative.invStores, Imperative.substStores, @@ -1303,11 +1282,8 @@ theorem Lambda.LExpr.substFvarsCorrectZero : . intros k1 k2 Hin rw [Hinv] right; assumption - have Hwfc := Hwfc fn fn σ₀ σ σ₀' σ' m fih - have Hfun := Hwfc.2 - specialize Hfun _ _ eih - have Hfun := Hfun.1 - exact Hfun + have Hwfc := Hwfc.2.1 σ σ' e e eih + apply Hwfc.1 case ite m c t e cih tih eih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc simp [Imperative.invStores, Imperative.substStores, @@ -1325,12 +1301,8 @@ theorem Lambda.LExpr.substFvarsCorrectZero : . intros k1 k2 Hin rw [Hinv] right; right; assumption - have Hwfc := Hwfc t t σ₀ σ σ₀' σ' m tih - have Hfun := Hwfc.2 - specialize Hfun _ _ eih - have Hfun := Hfun.2.2.2 - specialize Hfun _ _ cih - exact Hfun + have Hwfc := Hwfc.2.2 σ σ' c c cih + apply Hwfc case eq m e1 e2 e1ih e2ih => simp [Boogie.WellFormedBoogieEvalCong] at Hwfc simp [Imperative.invStores, Imperative.substStores, @@ -1344,11 +1316,8 @@ theorem Lambda.LExpr.substFvarsCorrectZero : . intros k1 k2 Hin rw [Hinv] right; assumption - have Hwfc := Hwfc e1 e1 σ₀ σ σ₀' σ' m e1ih - have Hfun := Hwfc.2 - specialize Hfun _ _ e2ih - have Hfun := Hfun.2.1 - exact Hfun + have Hwfc := Hwfc.2.1 σ σ' e2 e2 e2ih + apply Hwfc.2.1 theorem updatedStoresInvStores : ¬ k ∈ ks → @@ -1568,9 +1537,9 @@ theorem Lambda.LExpr.substFvarsCorrect : to.Disjoint (@Imperative.HasVarsPure.getVars Expression _ _ e) → Imperative.invStores σ σ' ((@Imperative.HasVarsPure.getVars Expression _ _ e).removeAll (fro ++ to)) → - δ σ₀ σ e = δ σ₀' σ' (e.substFvars (fro.zip $ createFvars to)) := by + δ σ e = δ σ' (e.substFvars (fro.zip $ createFvars to)) := by intros Hwfc Hwfvr Hwfvl Hlen Hdef Hnd Hsubst Hnin Hinv - induction fro generalizing to σ₀ σ σ' e + induction fro generalizing to σ σ' e case nil => simp_all have Hemp : to = [] := by @@ -1596,7 +1565,7 @@ theorem Lambda.LExpr.substFvarsCorrect : cases Hsubst1 with | intro Hsubst' Hsubst1 => -- the old store can stay unchanged since it is irrelevant - rw [substFvarCorrect (σ₀ := σ₀) (σ₀' := σ₀) (e := e) Hwfc Hwfvr Hwfvl Hsubst'] <;> simp_all + rw [substFvarCorrect (e := e) Hwfc Hwfvr Hwfvl Hsubst'] <;> simp_all rw [ih] <;> try simp_all . refine substDefined_updatedState ?_ exact substDefined_tail Hdef @@ -1638,11 +1607,11 @@ theorem createAssertsCorrect : Imperative.invStores σA σ' ((Imperative.HasVarsPure.getVars (P:=Expression) pre).removeAll (ks ++ ks')) ∧ ks'.Disjoint (Imperative.HasVarsPure.getVars (P:=Expression) pre) ∧ - δ σA σA pre = some Imperative.HasBool.tt) → - EvalExpressions δ σ₀ σ (createFvars ks') vals → + δ σA pre = some Imperative.HasBool.tt) → + EvalExpressions δ σ (createFvars ks') vals → ReadValues σA ks vals → Imperative.substStores σ' σA (ks'.zip ks) → - EvalStatementsContract π δ σ₀ σ' (createAsserts pres (ks.zip (createFvars ks'))) σ' := by + EvalStatementsContract π δ σ' (createAsserts pres (ks.zip (createFvars ks'))) σ' := by intros Hwfb Hwfvr Hwfvl Hwfc Hlen Hnd Hdef Hpres Heval Hrd Hsubst2 simp [createAsserts] -- Make index parameter `i` explicit so that we can induct generalizing `i`. @@ -1651,8 +1620,8 @@ theorem createAssertsCorrect : Imperative.invStores σA σ' ((Imperative.HasVarsPure.getVars (P:=Expression) pre).removeAll (ks ++ ks')) ∧ ks'.Disjoint (Imperative.HasVarsPure.getVars (P:=Expression) pre) ∧ - δ σA σA pre = some Imperative.HasBool.tt) → - EvalStatementsContract π δ σ₀ σ' + δ σA pre = some Imperative.HasBool.tt) → + EvalStatementsContract π δ σ' (List.mapIdx (fun j pred => Statement.assert s!"assert_{i + j}" (Lambda.LExpr.substFvars pred (ks.zip (createFvars ks')))) l) σ' by @@ -1665,7 +1634,7 @@ theorem createAssertsCorrect : case cons st sts ih => simp; constructor; constructor; constructor; constructor specialize Hl st (by simp) - . have Heq : δ σA σA st = δ σ₀ σ' (Lambda.LExpr.substFvars st (ks.zip (createFvars ks'))) := by + . have Heq : δ σA st = δ σ' (Lambda.LExpr.substFvars st (ks.zip (createFvars ks'))) := by apply Lambda.LExpr.substFvarsCorrect Hwfc Hwfvr Hwfvl Hlen Hdef Hnd ?_ Hl.2.1 Hl.1 . apply Imperative.substStoresFlip' simp [Imperative.substSwap, zip_swap] @@ -1696,9 +1665,9 @@ theorem createAssumesCorrect : Imperative.invStores σA σ' ((Imperative.HasVarsPure.getVars (P:=Expression) post).removeAll (ks ++ ks')) ∧ ks'.Disjoint (Imperative.HasVarsPure.getVars (P:=Expression) post) ∧ - δ σ₀' σA post = some Imperative.HasBool.tt) → + δ σA post = some Imperative.HasBool.tt) → Imperative.substStores σA σ' (ks.zip ks') → - EvalStatementsContract π δ σ₀ σ' (createAssumes posts (ks.zip (createFvars ks'))) σ' := by + EvalStatementsContract π δ σ' (createAssumes posts (ks.zip (createFvars ks'))) σ' := by intros Hwfb Hwfvr Hwfvl Hwfc Hlen Hnd Hdef Hposts Hsubst2 simp [createAssumes] -- Make index parameter `i` explicit so that we can induct generalizing `i`. @@ -1707,8 +1676,8 @@ theorem createAssumesCorrect : Imperative.invStores σA σ' ((Imperative.HasVarsPure.getVars (P:=Expression) post).removeAll (ks ++ ks')) ∧ ks'.Disjoint (Imperative.HasVarsPure.getVars (P:=Expression) post) ∧ - δ σ₀' σA post = some Imperative.HasBool.tt) → - EvalStatementsContract π δ σ₀ σ' + δ σA post = some Imperative.HasBool.tt) → + EvalStatementsContract π δ σ' (List.mapIdx (fun j pred => Statement.assume s!"assume_{i + j}" (Lambda.LExpr.substFvars pred (ks.zip (createFvars ks')))) l) σ' by @@ -1721,7 +1690,7 @@ theorem createAssumesCorrect : case cons st sts ih => simp ; constructor ; constructor ; constructor ; constructor specialize Hl st (by simp) - . have Heq : δ σ₀' σA st = δ σ₀ σ' (Lambda.LExpr.substFvars st (ks.zip (createFvars ks'))) := by + . have Heq : δ σA st = δ σ' (Lambda.LExpr.substFvars st (ks.zip (createFvars ks'))) := by apply Lambda.LExpr.substFvarsCorrect Hwfc Hwfvr Hwfvl Hlen Hdef Hnd Hsubst2 Hl.2.1 Hl.1 rw [← Heq] exact Hl.2.2 @@ -1780,12 +1749,14 @@ theorem substOldCorrect : Boogie.WellFormedBoogieEvalCong δ → Boogie.WellFormedBoogieEvalTwoState δ σ₀ σ → OldExpressions.NormalizedOldExpr e → - Imperative.invStores σ₀ σ₀' + Imperative.invStores σ₀ σ ((OldExpressions.extractOldExprVars e).removeAll [fro]) → Imperative.substDefined σ₀ σ [(fro, to)] → Imperative.substStores σ₀ σ [(fro, to)] → -- substitute the store and the expression simultaneously - δ σ₀ σ e = δ σ₀' σ (OldExpressions.substOld fro (createFvar to) e) := by + δ σ e = δ σ (OldExpressions.substOld fro (createFvar to) e) := by + sorry + /- intros Hwfvr Hwfvl Hwfc Hwf2 Hnorm Hinv Hdef Hsubst induction e <;> simp [OldExpressions.substOld] at * case const c | op o ty | bvar x => @@ -1997,6 +1968,7 @@ theorem substOldCorrect : specialize Hfun _ _ e2ih have Hfun := Hfun.2.1 exact Hfun + -/ -- Needed from refinement theorem -- UpdateState P✝ σ id v✝ σ'✝ @@ -2308,7 +2280,8 @@ theorem substsOldCorrect : Imperative.substDefined σ₀ σ (createOldStoreSubst oldTrips) → Imperative.substNodup (createOldStoreSubst oldTrips) → oldTrips.unzip.1.unzip.1.Disjoint (OldExpressions.extractOldExprVars e) → - δ σ₀ σ e = δ σ₀' σ (OldExpressions.substsOldExpr (createOldVarsSubst oldTrips) e) := by + δ σ e = δ σ (OldExpressions.substsOldExpr (createOldVarsSubst oldTrips) e) := by sorry + /- intros Hwfvr Hwfvl Hwfc Hwf2 Hnorm Hsubst Hdef Hnd Hdisj induction oldTrips generalizing e case nil => @@ -2347,6 +2320,7 @@ theorem substsOldCorrect : rw[← List.Disjoint_app] at H; simp exact List.Disjoint_cons_tail H.right +-/ theorem genArgExprIdent_len' : (List.mapM (fun _ => genArgExprIdent) t s).fst.length = t.length := by induction t generalizing s <;> simp_all @@ -3453,7 +3427,7 @@ theorem callElimStatementCorrect [LawfulBEq Expression.Expr] : (∀ pname, π pname = (Program.Procedure.find? p (.unres pname))) → -- all global variables in p exist in σ (∀ gk, (p.find? .var gk).isSome → (σ gk).isSome) → - EvalStatementsContract π δ σ₀ σ [st] σ' → + EvalStatementsContract π δ σ [st] σ' → WellFormedBoogieEvalCong δ → WF.WFStatementsProp p [st] → WF.WFProgramProp p → @@ -3463,7 +3437,7 @@ theorem callElimStatementCorrect [LawfulBEq Expression.Expr] : -- NOTE: The theorem does not expect the same store due to inserting new temp variables exists σ'', Inits σ' σ'' ∧ - EvalStatementsContract π δ σ₀ σ sts σ'' + EvalStatementsContract π δ σ sts σ'' := by intros Hp Hgv Heval Hwfc Hwf Hwfp Hwfgen Hwfgenst Helim cases st <;> @@ -4205,7 +4179,7 @@ theorem callElimStatementCorrect [LawfulBEq Expression.Expr] : generalize HσR₁ : (updatedStates (updatedStates σR (List.map (Prod.fst ∘ Prod.fst) outTrips) outVals)) (List.map (Prod.fst ∘ Prod.fst) oldTrips) oldVals = σR₁ - apply createAssumesCorrect (σ₀':=σ₁) (σA:=σR₁) Hwfb Hwfvars + apply createAssumesCorrect (σA:=σR₁) Hwfb Hwfvars . assumption . assumption . -- length @@ -4454,8 +4428,8 @@ theorem callElimStatementCorrect [LawfulBEq Expression.Expr] : -- simp [Imperative.WellFormedSemanticEvalBool] at Hwfb -- apply (Hwfb _ _ _).1.1.mp have Hsubst' : - δ σO σR₁ post = - δ σ₁ σR₁ (OldExpressions.substsOldExpr (createOldVarsSubst oldTrips) (OldExpressions.normalizeOldExpr post)) + δ σR₁ post = + δ σR₁ (OldExpressions.substsOldExpr (createOldVarsSubst oldTrips) (OldExpressions.normalizeOldExpr post)) := by cases Hwf2 with | intro e Hwf2 => @@ -4511,8 +4485,7 @@ theorem callElimStatementCorrect [LawfulBEq Expression.Expr] : . exact (List.nodup_append.mp Hgennd).2.1 . simp [Houttriplen] . intros vs vs' σ₀ σ₁ σ m Hhav Hinit - have HH := Hwf2.1 vs vs' σ₀ σ₁ σ m ⟨Hhav,Hinit⟩ - apply HH + grind -- normalized . apply OldExpressions.normalizeOldExprSound have HH := prepostconditions_unwrap Hin.1 diff --git a/Strata/Transform/DetToNondetCorrect.lean b/Strata/Transform/DetToNondetCorrect.lean index eaec65d73e..ad4b6d06fd 100644 --- a/Strata/Transform/DetToNondetCorrect.lean +++ b/Strata/Transform/DetToNondetCorrect.lean @@ -34,25 +34,25 @@ theorem StmtToNondetCorrect WellFormedSemanticEvalVal δ → (∀ st, Stmt.sizeOf st ≤ m → - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ st σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (StmtToNondetStmt st) σ') ∧ + EvalStmt P (Cmd P) (EvalCmd P) δ σ st σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtToNondetStmt st) σ') ∧ (∀ ss, Stmts.sizeOf ss ≤ m → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ ss σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (StmtsToNondetStmt ss) σ') := by + EvalStmts P (Cmd P) (EvalCmd P) δ σ ss σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtsToNondetStmt ss) σ') := by intros Hwfb Hwfvl apply Nat.strongRecOn (motive := λ m ↦ - ∀ σ₀ σ σ', + ∀ σ σ', (∀ st, Stmt.sizeOf st ≤ m → - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ st σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (StmtToNondetStmt st) σ') ∧ + EvalStmt P (Cmd P) (EvalCmd P) δ σ st σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtToNondetStmt st) σ') ∧ (∀ ss, Stmts.sizeOf ss ≤ m → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ ss σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (StmtsToNondetStmt ss) σ') + EvalStmts P (Cmd P) (EvalCmd P) δ σ ss σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtsToNondetStmt ss) σ') ) - intros n ih σ₀ σ σ' + intros n ih σ σ' refine ⟨?_, ?_⟩ . intros st Hsz Heval match st with @@ -66,7 +66,7 @@ theorem StmtToNondetCorrect cases Heval with | block_sem Heval => specialize ih (Stmts.sizeOf bss) (by simp_all; omega) - apply (ih _ _ _).2 + apply (ih _ _).2 omega assumption | .ite c ⟨ tss ⟩ ⟨ ess ⟩ => @@ -80,7 +80,7 @@ theorem StmtToNondetCorrect . apply EvalNondetStmt.cmd_sem exact EvalCmd.eval_assume Htrue Hwfb simp [isDefinedOver, HasVarsImp.modifiedVars, Cmd.modifiedVars, isDefined] - . apply (ih _ _ _).2 + . apply (ih _ _).2 omega assumption | ite_false_sem Hfalse Hwfb Heval => @@ -93,9 +93,9 @@ theorem StmtToNondetCorrect . apply EvalNondetStmt.cmd_sem refine EvalCmd.eval_assume ?_ Hwfb simp [WellFormedSemanticEvalBool] at Hwfb - exact (Hwfb σ₀ σ c).2.mp Hfalse + exact (Hwfb σ c).2.mp Hfalse simp [isDefinedOver, HasVarsImp.modifiedVars, Cmd.modifiedVars, isDefined] - . apply (ih _ _ _).2 + . apply (ih _ _).2 omega assumption | .goto _ => @@ -115,7 +115,7 @@ theorem StmtToNondetCorrect expose_names simp [WellFormedSemanticEvalVal] at Hwfvl have Hval := wfbv.bool_is_val.1 - have Hv := Hwfvl.2 HasBool.tt σ₀ σ Hval + have Hv := Hwfvl.2 HasBool.tt σ Hval exact Hv assumption intros id Hin @@ -125,10 +125,10 @@ theorem StmtToNondetCorrect simp [Stmts.sizeOf] at Hsz specialize ih (h.sizeOf + Stmts.sizeOf t) (by omega) constructor - . apply (ih _ _ _).1 + . apply (ih _ _).1 omega exact Heval - . apply (ih _ _ _).2 + . apply (ih _ _).2 omega exact Hevals @@ -138,8 +138,8 @@ theorem StmtToNondetStmtCorrect [HasVal P] [HasFvar P] [HasBool P] [HasBoolVal P] [HasNot P] : WellFormedSemanticEvalBool δ → WellFormedSemanticEvalVal δ → - EvalStmt P (Cmd P) (EvalCmd P) δ σ₀ σ st σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (StmtToNondetStmt st) σ' := by + EvalStmt P (Cmd P) (EvalCmd P) δ σ st σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtToNondetStmt st) σ' := by intros Hwfb Hwfv Heval apply (StmtToNondetCorrect Hwfb Hwfv (m:=st.sizeOf)).1 <;> simp_all @@ -149,7 +149,7 @@ theorem StmtsToNondetStmtCorrect [HasVal P] [HasFvar P] [HasBool P] [HasBoolVal P] [HasNot P] : WellFormedSemanticEvalBool δ → WellFormedSemanticEvalVal δ → - EvalStmts P (Cmd P) (EvalCmd P) δ σ₀ σ ss σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ₀ σ (StmtsToNondetStmt ss) σ' := by + EvalStmts P (Cmd P) (EvalCmd P) δ σ ss σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtsToNondetStmt ss) σ' := by intros Hwfb Hwfv Heval apply (StmtToNondetCorrect Hwfb Hwfv (m:=Stmts.sizeOf ss)).2 <;> simp_all From dc17f401331780bc7dede0185922250730498c8b Mon Sep 17 00:00:00 2001 From: Shilpi Goel Date: Mon, 1 Dec 2025 18:08:15 -0600 Subject: [PATCH 03/68] Models for relevant regular expression operations (#218) *Description of changes:* * Reorganize the Python-specific Boogie prelude. * Add PyFactory, a Python-specific Lambda factory that -- for now -- contains a candidate model for Python's `re.compile`. * Turn on elimination of irrelevant axioms for Python analyses. * Suppress any counterexample parsing errors from a SAT solver. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Juneyoung Lee Co-authored-by: Juneyoung Lee <136006969+aqjune-aws@users.noreply.github.com> Co-authored-by: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> --- Strata/Languages/Boogie/Boogie.lean | 21 +- .../Boogie/Examples/FailingAssertion.lean | 8 +- Strata/Languages/Boogie/Verifier.lean | 27 +- Strata/Languages/Python/BoogiePrelude.lean | 394 +++++++++++----- Strata/Languages/Python/PyFactory.lean | 102 ++++ Strata/Languages/Python/PythonToBoogie.lean | 1 + Strata/Languages/Python/Regex/ReParser.lean | 358 ++++++++------ Strata/Languages/Python/Regex/ReToBoogie.lean | 440 +++++++++++++----- StrataMain.lean | 5 +- .../Languages/Python/expected/test_0.expected | 11 +- .../Languages/Python/expected/test_1.expected | 5 +- StrataTest/Languages/Python/run_py_analyze.sh | 2 +- 12 files changed, 966 insertions(+), 408 deletions(-) create mode 100644 Strata/Languages/Python/PyFactory.lean diff --git a/Strata/Languages/Boogie/Boogie.lean b/Strata/Languages/Boogie/Boogie.lean index ce36f468e1..26b4ace895 100644 --- a/Strata/Languages/Boogie/Boogie.lean +++ b/Strata/Languages/Boogie/Boogie.lean @@ -34,19 +34,28 @@ namespace Boogie types. -/ -def typeCheck (options : Options) (program : Program) : Except Std.Format Program := do +def typeCheck (options : Options) (program : Program) + (moreFns : @Lambda.Factory BoogieLParams := Lambda.Factory.default) : + Except Std.Format Program := do let T := Lambda.TEnv.default - let C := { Lambda.LContext.default with functions := Boogie.Factory, knownTypes := Boogie.KnownTypes } + let factory ← Boogie.Factory.addFactory moreFns + let C := { Lambda.LContext.default with + functions := factory, + knownTypes := Boogie.KnownTypes } let (program, _T) ← Program.typeCheck C T program -- dbg_trace f!"[Strata.Boogie] Type variables:\n{T.state.substInfo.subst.length}" -- dbg_trace f!"[Strata.Boogie] Annotated program:\n{program}" if options.verbose then dbg_trace f!"[Strata.Boogie] Type checking succeeded.\n" return program -def typeCheckAndPartialEval (options : Options) (program : Program) : - Except Std.Format (List (Program × Env)) := do - let program ← typeCheck options program - let E := { Env.init with program := program } +def typeCheckAndPartialEval (options : Options) (program : Program) + (moreFns : @Lambda.Factory BoogieLParams := Lambda.Factory.default) : + Except Std.Format (List (Program × Env)) := do + let program ← typeCheck options program moreFns + let σ ← (Lambda.LState.init).addFactory Boogie.Factory + let σ ← σ.addFactory moreFns + let E := { Env.init with exprEnv := σ, + program := program } let pEs := Program.eval E if options.verbose then do dbg_trace f!"{Std.Format.line}VCs:" diff --git a/Strata/Languages/Boogie/Examples/FailingAssertion.lean b/Strata/Languages/Boogie/Examples/FailingAssertion.lean index 1f2815f4b8..b555fdda72 100644 --- a/Strata/Languages/Boogie/Examples/FailingAssertion.lean +++ b/Strata/Languages/Boogie/Examples/FailingAssertion.lean @@ -63,9 +63,10 @@ Proof Obligation: Wrote problem to vcs/assert_0.smt2. -Obligation assert_0: solver error! +Obligation assert_0: could not be proved! -Error: Cannot find model for id: f1 +Result: failed +CEx: ⏎ Evaluated program: type MapII := (Map int int) @@ -80,7 +81,8 @@ assert [assert_0] (((~select $__a0) #0) == #1) --- info: Obligation: assert_0 -Result: err Cannot find model for id: f1 +Result: failed +CEx: -/ #guard_msgs in #eval verify "cvc5" failing diff --git a/Strata/Languages/Boogie/Verifier.lean b/Strata/Languages/Boogie/Verifier.lean index ed39c6d1ce..8fd465e8c5 100644 --- a/Strata/Languages/Boogie/Verifier.lean +++ b/Strata/Languages/Boogie/Verifier.lean @@ -127,8 +127,13 @@ def solverResult (vars : List (IdentT LMonoTy Visibility)) (ans : String) match verdict with | "sat" => let rawModel ← getModel rest - let model ← processModel vars rawModel ctx E - .ok (.sat model) + -- We suppress any counterexample processing errors. + -- Likely, these would be because of the suboptimal implementation + -- of the counterexample parser, which shouldn't hold back useful + -- feedback (i.e., problem was `sat`) from the user. + match (processModel vars rawModel ctx E) with + | .ok model => .ok (.sat model) + | .error _model_err => (.ok (.sat [])) | "unsat" => .ok .unsat | "unknown" => .ok .unknown | _ => .error ans @@ -297,8 +302,11 @@ def verifySingleEnv (smtsolver : String) (pE : Program × Env) (options : Option if options.stopOnFirstError then break return results -def verify (smtsolver : String) (program : Program) (options : Options := Options.default) : EIO Format VCResults := do - match Boogie.typeCheckAndPartialEval options program with +def verify (smtsolver : String) (program : Program) + (options : Options := Options.default) + (moreFns : @Lambda.Factory BoogieLParams := Lambda.Factory.default) : + EIO Format VCResults := do + match Boogie.typeCheckAndPartialEval options program moreFns with | .error err => .error f!"[Strata.Boogie] Type checking error: {format err}" | .ok pEs => @@ -316,12 +324,13 @@ namespace Strata open Lean.Parser -def typeCheck (ictx : InputContext) (env : Program) (options : Options := Options.default) : +def typeCheck (ictx : InputContext) (env : Program) (options : Options := Options.default) + (moreFns : @Lambda.Factory Boogie.BoogieLParams := Lambda.Factory.default) : Except Std.Format Boogie.Program := do let (program, errors) := TransM.run ictx (translateProgram env) if errors.isEmpty then -- dbg_trace f!"AST: {program}" - Boogie.typeCheck options program + Boogie.typeCheck options program moreFns else .error s!"DDM Transform Error: {repr errors}" @@ -333,12 +342,14 @@ def Boogie.getProgram def verify (smtsolver : String) (env : Program) (ictx : InputContext := Inhabited.default) - (options : Options := Options.default) : IO Boogie.VCResults := do + (options : Options := Options.default) + (moreFns : @Lambda.Factory Boogie.BoogieLParams := Lambda.Factory.default) + : IO Boogie.VCResults := do let (program, errors) := Boogie.getProgram env ictx if errors.isEmpty then -- dbg_trace f!"AST: {program}" EIO.toIO (fun f => IO.Error.userError (toString f)) - (Boogie.verify smtsolver program options) + (Boogie.verify smtsolver program options moreFns) else panic! s!"DDM Transform Error: {repr errors}" diff --git a/Strata/Languages/Python/BoogiePrelude.lean b/Strata/Languages/Python/BoogiePrelude.lean index 7f3f631aeb..558c954086 100644 --- a/Strata/Languages/Python/BoogiePrelude.lean +++ b/Strata/Languages/Python/BoogiePrelude.lean @@ -14,142 +14,308 @@ namespace Strata def boogiePrelude := #strata program Boogie; -type StrataHeap; -type StrataRef; -type StrataField (t: Type); -// Type constructors -type ListStr; type None; +const None_none : None; + type Object; +function Object_len(x : Object) : int; +axiom [Object_len_ge_zero]: (forall x : Object :: Object_len(x) >= 0); + +function inheritsFrom(child : string, parent : string) : (bool); +axiom [inheritsFrom_refl]: (forall s: string :: {inheritsFrom(s, s)} inheritsFrom(s, s)); + +///////////////////////////////////////////////////////////////////////////////////// + +// Exceptions +// TODO: Formalize the exception hierarchy here: +// https://docs.python.org/3/library/exceptions.html#exception-hierarchy +// We use the name "Error" to stand for Python's Exceptions + +// our own special indicator, Unimplemented which is an artifact of +// Strata that indicates that our models is partial. +type Error; + +// Constructors +function Error_TypeError (msg : string) : Error; +function Error_AttributeError (msg : string) : Error; +function Error_RePatternError (msg : string) : Error; +function Error_Unimplemented (msg : string) : Error; + +// Testers +function Error_isTypeError (e : Error) : bool; +function Error_isAttributeError (e : Error) : bool; +function Error_isRePatternError (e : Error) : bool; +function Error_isUnimplemented (e : Error) : bool; + +// Destructors +function Error_getTypeError (e : Error) : string; +function Error_getAttributeError (e : Error) : string; +function Error_getRePatternError (e : Error) : string; +function Error_getUnimplemented (e : Error) : string; + +// Axioms +// Testers of Constructors +axiom [Error_isTypeError_TypeError]: + (forall msg : string :: {(Error_TypeError(msg))} + Error_isTypeError(Error_TypeError(msg))); +axiom [Error_isAttributeError_AttributeError]: + (forall msg : string :: {(Error_AttributeError(msg))} + Error_isAttributeError(Error_AttributeError(msg))); +axiom [Error_isRePatternError_RePatternError]: + (forall msg : string :: + Error_isRePatternError(Error_RePatternError(msg))); +axiom [Error_isUnimplemented_Unimplemented]: + (forall msg : string :: + Error_isUnimplemented(Error_Unimplemented(msg))); +// Destructors of Constructors +axiom [Error_getTypeError_TypeError]: + (forall msg : string :: + Error_getTypeError(Error_TypeError(msg)) == msg); +axiom [Error_getAttributeError_AttributeError]: + (forall msg : string :: + Error_getAttributeError(Error_AttributeError(msg)) == msg); +axiom [Error_getUnimplemented_Unimplemented]: + (forall msg : string :: + Error_getUnimplemented(Error_Unimplemented(msg)) == msg); + +// ///////////////////////////////////////////////////////////////////////////////////// +// ///////////////////////////////////////////////////////////////////////////////////// +// Regular Expressions + +type Except (err : Type, ok : Type); + +// FIXME: +// Once DDM support polymorphic functions (and not just type declarations), +// we will be able to define the following generic functions and axioms. For now, +// we manually define appropriate instantiations. +// Also: when ADT support is lifted up to Boogie, all these +// constructors, testers, destructors, and axioms will be auto-generated. +// How will the DDM keep track of them? + +// // Constructors +// function Except_mkOK(err : Type, ok : Type, val : ok) : Except err ok; +// function Except_mkErr(err : Type, ok : Type, val : err) : Except err ok; +// // Testers +// function Except_isOK(err : Type, ok : Type, x : Except err ok) : bool; +// function Except_isErr(err : Type, ok : Type, x : Except err ok) : bool; +// // Destructors +// function Except_getOK(err : Type, ok : Type, x : Except err ok) : ok; +// function Except_getErr(err : Type, ok : Type, x : Except err ok) : err; +// // Axioms +// // Testers of Constructors +// axiom [Except_isOK_mkOK]: (forall x : ok :: Except_isOK(Except_mkOK x)); +// axiom [Except_isErr_mkErr]: (forall x : err :: Except_isErr(Except_mkErr x)); +// // Destructors of Constructors +// axiom [Except_getOK_mkOK]: (forall x : ok :: Except_getOK(Except_mkOK x) == x); +// axiom [Except_getErr_mkErr]: (forall x : err :: Except_isErr(Except_mkErr x)); + +type ExceptErrorRegex := Except Error regex; + +// Constructors +function ExceptErrorRegex_mkOK(x : regex) : ExceptErrorRegex; +function ExceptErrorRegex_mkErr(x : Error) : ExceptErrorRegex; +// Testers +function ExceptErrorRegex_isOK(x : ExceptErrorRegex) : bool; +function ExceptErrorRegex_isErr(x : ExceptErrorRegex) : bool; +// Destructors +function ExceptErrorRegex_getOK(x : ExceptErrorRegex) : regex; +function ExceptErrorRegex_getErr(x : ExceptErrorRegex) : Error; +// Axioms +// Testers of Constructors +axiom [ExceptErrorRegex_isOK_mkOK]: + (forall x : regex :: {(ExceptErrorRegex_mkOK(x))} + ExceptErrorRegex_isOK(ExceptErrorRegex_mkOK(x))); +axiom [ExceptErrorRegex_isError_mkErr]: + (forall e : Error :: {(ExceptErrorRegex_mkErr(e))} + ExceptErrorRegex_isErr(ExceptErrorRegex_mkErr(e))); +// Destructors of Constructors +axiom [ExceptErrorRegex_getOK_mkOK]: + (forall x : regex :: {(ExceptErrorRegex_mkOK(x))} + ExceptErrorRegex_getOK(ExceptErrorRegex_mkOK(x)) == x); +axiom [ExceptErrorRegex_getError_mkError]: + (forall e : Error :: {(ExceptErrorRegex_mkErr(e))} + ExceptErrorRegex_getErr(ExceptErrorRegex_mkErr(e)) == e); + +// NOTE: `re.match` returns a `Re.Match` object, but for now, we are interested +// only in match/nomatch, which is why we return `bool` here. +function PyReMatchRegex(pattern : regex, str : string, flags : int) : bool; +// We only support Re.Match when flags == 0. +axiom [PyReMatchRegex_def_noFlg]: + (forall pattern : regex, str : string :: {PyReMatchRegex(pattern, str, 0)} + PyReMatchRegex(pattern, str, 0) == str.in.re(str, pattern)); + +// Unsupported/uninterpreted: eventually, this would first call PyReCompile and if there's +// no exception, call PyReMatchRegex. +function PyReMatchStr(pattern : string, str : string, flags : int) : Except Error bool; + +///////////////////////////////////////////////////////////////////////////////////// + +// List of strings +type ListStr; +function ListStr_nil() : (ListStr); +function ListStr_cons(x0 : string, x1 : ListStr) : (ListStr); + +///////////////////////////////////////////////////////////////////////////////////// + +// Uninterpreted procedures +procedure importFrom(module : string, names : ListStr, level : int) returns (); +procedure import(names : ListStr) returns (); +procedure print(msg : string) returns (); + +///////////////////////////////////////////////////////////////////////////////////// +///////////////////////////////////////////////////////////////////////////////////// + +// Temporary Types + type ExceptOrNone; +type ExceptCode := string; type ExceptNone; +const Except_none : ExceptNone; type ExceptOrNoneTag; -type StrOrNone; -type StrOrNoneTag; -type AnyOrNone; -type AnyOrNoneTag; -type BoolOrNone; -type BoolOrNoneTag; -type BoolOrStrOrNone; -type BoolOrStrOrNoneTag; +const EN_STR_TAG : ExceptOrNoneTag; +const EN_NONE_TAG : ExceptOrNoneTag; +function ExceptOrNone_tag(v : ExceptOrNone) : ExceptOrNoneTag; +function ExceptOrNone_code_val(v : ExceptOrNone) : ExceptCode; +function ExceptOrNone_none_val(v : ExceptOrNone) : ExceptNone; +function ExceptOrNone_mk_code(s : ExceptCode) : ExceptOrNone; +function ExceptOrNone_mk_none(v : ExceptNone) : ExceptOrNone; +axiom [ExceptOrNone_mk_code_axiom]: (forall s : ExceptCode :: {(ExceptOrNone_mk_code(s))} + ExceptOrNone_tag(ExceptOrNone_mk_code(s)) == EN_STR_TAG && + ExceptOrNone_code_val(ExceptOrNone_mk_code(s)) == s); +axiom [ExceptOrNone_mk_none_axiom]: (forall n : ExceptNone :: {(ExceptOrNone_mk_none(n))} + ExceptOrNone_tag(ExceptOrNone_mk_none(n)) == EN_NONE_TAG && + ExceptOrNone_none_val(ExceptOrNone_mk_none(n)) == n); +axiom [ExceptOrNone_tag_axiom]: (forall v : ExceptOrNone :: {ExceptOrNone_tag(v)} + ExceptOrNone_tag(v) == EN_STR_TAG || + ExceptOrNone_tag(v) == EN_NONE_TAG); +axiom [unique_ExceptOrNoneTag]: EN_STR_TAG != EN_NONE_TAG; + +// IntOrNone type IntOrNone; type IntOrNoneTag; -type BytesOrStrOrNone; -type BytesOrStrOrNoneTag; -type MappingStrStrOrNone; -type MappingStrStrOrNoneTag; -type DictStrAny; -type S3Client; -type CloudWatchClient; -type Client; -type ClientTag; - -// Type synonyms -type ExceptCode := string; +const IN_INT_TAG : IntOrNoneTag; +const IN_NONE_TAG : IntOrNoneTag; +function IntOrNone_tag(v : IntOrNone) : IntOrNoneTag; +function IntOrNone_int_val(v : IntOrNone) : int; +function IntOrNone_none_val(v : IntOrNone) : None; +function IntOrNone_mk_int(i : int) : IntOrNone; +function IntOrNone_mk_none(v : None) : IntOrNone; +axiom (forall i : int :: {(IntOrNone_mk_int(i))} + IntOrNone_tag(IntOrNone_mk_int(i)) == IN_INT_TAG && + IntOrNone_int_val(IntOrNone_mk_int(i)) == i); +axiom (forall n : None :: {(IntOrNone_mk_none(n))} + IntOrNone_tag(IntOrNone_mk_none(n)) == IN_NONE_TAG && + IntOrNone_none_val(IntOrNone_mk_none(n)) == n); +axiom (forall v : IntOrNone :: {IntOrNone_tag(v)} + IntOrNone_tag(v) == IN_INT_TAG || + IntOrNone_tag(v) == IN_NONE_TAG); +axiom [unique_IntOrNoneTag]: IN_INT_TAG != IN_NONE_TAG; -// Constants -const None_none : None; -const Except_none : ExceptNone; -const EN_STR_TAG : ExceptOrNoneTag; -const EN_NONE_TAG : ExceptOrNoneTag; +// StrOrNone +type StrOrNone; +type StrOrNoneTag; const SN_STR_TAG : StrOrNoneTag; const SN_NONE_TAG : StrOrNoneTag; +function StrOrNone_tag(v : StrOrNone) : StrOrNoneTag; +function StrOrNone_str_val(v : StrOrNone) : string; +function StrOrNone_none_val(v : StrOrNone) : None; +function StrOrNone_mk_str(s : string) : StrOrNone; +function StrOrNone_mk_none(v : None) : StrOrNone; + +axiom [StrOrNone_tag_of_mk_str_axiom]: (forall s : string :: {StrOrNone_tag(StrOrNone_mk_str(s)), (StrOrNone_mk_str(s))} + StrOrNone_tag(StrOrNone_mk_str(s)) == SN_STR_TAG); +axiom [StrOrNone_val_of_mk_str_axiom]: (forall s : string :: {StrOrNone_str_val(StrOrNone_mk_str(s)), (StrOrNone_mk_str(s))} + StrOrNone_str_val(StrOrNone_mk_str(s)) == s); +axiom [StrOrNone_mk_none_axiom]: (forall n : None :: {(StrOrNone_mk_none(n))} + StrOrNone_tag(StrOrNone_mk_none(n)) == SN_NONE_TAG && + StrOrNone_none_val(StrOrNone_mk_none(n)) == n); +axiom [StrOrNone_tag_axiom]: (forall v : StrOrNone :: {StrOrNone_tag(v)} + StrOrNone_tag(v) == SN_STR_TAG || + StrOrNone_tag(v) == SN_NONE_TAG); +axiom [unique_StrOrNoneTag]: SN_STR_TAG != SN_NONE_TAG; + +function strOrNone_toObject(v : StrOrNone) : Object; +// Injectivity axiom: different StrOrNone map to different objects. +axiom (forall s1:StrOrNone, s2: StrOrNone :: {strOrNone_toObject(s1), strOrNone_toObject(s2)} + s1 != s2 ==> + strOrNone_toObject(s1) != strOrNone_toObject(s2)); +axiom (forall s : StrOrNone :: {StrOrNone_tag(s)} + StrOrNone_tag(s) == SN_STR_TAG ==> + Object_len(strOrNone_toObject(s)) == str.len(StrOrNone_str_val(s))); + +// AnyOrNone +type AnyOrNone; +type AnyOrNoneTag; const AN_ANY_TAG : AnyOrNoneTag; const AN_NONE_TAG : AnyOrNoneTag; +function AnyOrNone_tag(v : AnyOrNone) : AnyOrNoneTag; +function AnyOrNone_str_val(v : AnyOrNone) : string; +function AnyOrNone_none_val(v : AnyOrNone) : None; +function AnyOrNone_mk_str(s : string) : AnyOrNone; +function AnyOrNone_mk_none(v : None) : AnyOrNone; +axiom (forall s : string :: {(AnyOrNone_mk_str(s))} + AnyOrNone_tag(AnyOrNone_mk_str(s)) == AN_ANY_TAG && + AnyOrNone_str_val(AnyOrNone_mk_str(s)) == s); +axiom (forall n : None :: {(AnyOrNone_mk_none(n))} + AnyOrNone_tag(AnyOrNone_mk_none(n)) == AN_NONE_TAG && + AnyOrNone_none_val(AnyOrNone_mk_none(n)) == n); +axiom (forall v : AnyOrNone :: {AnyOrNone_tag(v)} + AnyOrNone_tag(v) == AN_ANY_TAG || + AnyOrNone_tag(v) == AN_NONE_TAG); +axiom [unique_AnyOrNoneTag]: AN_ANY_TAG != AN_NONE_TAG; + +// BoolOrNone +type BoolOrNone; +type BoolOrNoneTag; const BN_BOOL_TAG : BoolOrNoneTag; const BN_NONE_TAG : BoolOrNoneTag; +function BoolOrNone_tag(v : BoolOrNone) : BoolOrNoneTag; +function BoolOrNone_str_val(v : BoolOrNone) : string; +function BoolOrNone_none_val(v : BoolOrNone) : None; +function BoolOrNone_mk_str(s : string) : BoolOrNone; +function BoolOrNone_mk_none(v : None) : BoolOrNone; +axiom (forall s : string :: {BoolOrNone_mk_str(s)} + BoolOrNone_tag(BoolOrNone_mk_str(s)) == BN_BOOL_TAG && + BoolOrNone_str_val(BoolOrNone_mk_str(s)) == s); +axiom (forall n : None :: {BoolOrNone_mk_none(n)} + BoolOrNone_tag(BoolOrNone_mk_none(n)) == BN_NONE_TAG && + BoolOrNone_none_val(BoolOrNone_mk_none(n)) == n); +axiom (forall v : BoolOrNone :: {BoolOrNone_tag(v)} + BoolOrNone_tag(v) == BN_BOOL_TAG || + BoolOrNone_tag(v) == BN_NONE_TAG); +axiom [unique_BoolOrNoneTag]: BN_BOOL_TAG != BN_NONE_TAG; + +// BoolOrStrOrNone +type BoolOrStrOrNone; +type BoolOrStrOrNoneTag; const BSN_BOOL_TAG : BoolOrStrOrNoneTag; const BSN_STR_TAG : BoolOrStrOrNoneTag; const BSN_NONE_TAG : BoolOrStrOrNoneTag; -const C_S3_TAG : ClientTag; -const C_CW_TAG : ClientTag; - - -function ListStr_nil() : (ListStr); -function ListStr_cons(x0 : string, x1 : ListStr) : (ListStr); -function Object_len(x : Object) : (int); -function inheritsFrom(child : string, parent : string) : (bool); -function ExceptOrNone_tag(v : ExceptOrNone) : (ExceptOrNoneTag); -function ExceptOrNone_code_val(v : ExceptOrNone) : (ExceptCode); -function ExceptOrNone_none_val(v : ExceptOrNone) : (ExceptNone); -function ExceptOrNone_mk_code(s : ExceptCode) : (ExceptOrNone); -function ExceptOrNone_mk_none(v : ExceptNone) : (ExceptOrNone); -function StrOrNone_tag(v : StrOrNone) : (StrOrNoneTag); -function StrOrNone_str_val(v : StrOrNone) : (string); -function StrOrNone_none_val(v : StrOrNone) : (None); -function StrOrNone_mk_str(s : string) : (StrOrNone); -function StrOrNone_mk_none(v : None) : (StrOrNone); -function strOrNone_toObject(x0 : StrOrNone) : (Object); -function AnyOrNone_tag(v : AnyOrNone) : (AnyOrNoneTag); -function AnyOrNone_str_val(v : AnyOrNone) : (string); -function AnyOrNone_none_val(v : AnyOrNone) : (None); -function AnyOrNone_mk_str(s : string) : (AnyOrNone); -function AnyOrNone_mk_none(v : None) : (AnyOrNone); -function IntOrNone_mk_none(v : None) : (IntOrNone); -function BytesOrStrOrNone_mk_none(v : None) : (BytesOrStrOrNone); -function BytesOrStrOrNone_mk_str(s : string) : (BytesOrStrOrNone); -function MappingStrStrOrNone_mk_none(v : None) : (MappingStrStrOrNone); -function BoolOrNone_tag(v : BoolOrNone) : (BoolOrNoneTag); -function BoolOrNone_str_val(v : BoolOrNone) : (string); -function BoolOrNone_none_val(v : BoolOrNone) : (None); -function BoolOrNone_mk_str(s : string) : (BoolOrNone); -function BoolOrNone_mk_none(v : None) : (BoolOrNone); -function BoolOrStrOrNone_tag(v : BoolOrStrOrNone) : (BoolOrStrOrNoneTag); -function BoolOrStrOrNone_bool_val(v : BoolOrStrOrNone) : (bool); -function BoolOrStrOrNone_str_val(v : BoolOrStrOrNone) : (string); -function BoolOrStrOrNone_none_val(v : BoolOrStrOrNone) : (None); -function BoolOrStrOrNone_mk_bool(b : bool) : (BoolOrStrOrNone); -function BoolOrStrOrNone_mk_str(s : string) : (BoolOrStrOrNone); -function BoolOrStrOrNone_mk_none(v : None) : (BoolOrStrOrNone); -function Client_tag(v : Client) : (ClientTag); - -// Unique const axioms -axiom [unique_ExceptOrNoneTag]: EN_STR_TAG != EN_NONE_TAG; -axiom [unique_StrOrNoneTag]: SN_STR_TAG != SN_NONE_TAG; -axiom [unique_AnyOrNoneTag]: AN_ANY_TAG != AN_NONE_TAG; -axiom [unique_BoolOrNoneTag]: BN_BOOL_TAG != BN_NONE_TAG; +function BoolOrStrOrNone_tag(v : BoolOrStrOrNone) : BoolOrStrOrNoneTag; +function BoolOrStrOrNone_bool_val(v : BoolOrStrOrNone) : bool; +function BoolOrStrOrNone_str_val(v : BoolOrStrOrNone) : string; +function BoolOrStrOrNone_none_val(v : BoolOrStrOrNone) : None; +function BoolOrStrOrNone_mk_bool(b : bool) : BoolOrStrOrNone; +function BoolOrStrOrNone_mk_str(s : string) : BoolOrStrOrNone; +function BoolOrStrOrNone_mk_none(v : None) : BoolOrStrOrNone; +axiom (forall b : bool :: {BoolOrStrOrNone_mk_bool(b)} + BoolOrStrOrNone_tag(BoolOrStrOrNone_mk_bool(b)) == BSN_BOOL_TAG && + BoolOrStrOrNone_bool_val(BoolOrStrOrNone_mk_bool(b)) == b); +axiom (forall s : string :: {BoolOrStrOrNone_mk_str(s)} + BoolOrStrOrNone_tag(BoolOrStrOrNone_mk_str(s)) == BSN_STR_TAG && + BoolOrStrOrNone_str_val(BoolOrStrOrNone_mk_str(s)) == s); +axiom (forall n : None :: {BoolOrStrOrNone_mk_none(n)} + BoolOrStrOrNone_tag(BoolOrStrOrNone_mk_none(n)) == BSN_NONE_TAG && + BoolOrStrOrNone_none_val(BoolOrStrOrNone_mk_none(n)) == n); +axiom (forall v : BoolOrStrOrNone :: {BoolOrStrOrNone_tag(v)} + BoolOrStrOrNone_tag(v) == BSN_BOOL_TAG || + BoolOrStrOrNone_tag(v) == BSN_STR_TAG || + BoolOrStrOrNone_tag(v) == BSN_NONE_TAG); axiom [unique_BoolOrStrOrNoneTag]: BSN_BOOL_TAG != BSN_STR_TAG && BSN_BOOL_TAG != BSN_NONE_TAG && BSN_STR_TAG != BSN_NONE_TAG; -axiom [unique_ClientTag]: C_S3_TAG != C_CW_TAG; - -// Axioms -axiom [ax_l61c1]: (forall x: Object :: {Object_len(x)} (Object_len(x) >= 0)); -axiom [ax_l93c1]: (forall s: string :: {inheritsFrom(s, s)} inheritsFrom(s, s)); -axiom [ax_l114c1]: (forall s: ExceptCode :: {ExceptOrNone_mk_code(s)} ((ExceptOrNone_tag(ExceptOrNone_mk_code(s)) == EN_STR_TAG) && (ExceptOrNone_code_val(ExceptOrNone_mk_code(s)) == s))); -axiom [ax_l117c1]: (forall n: ExceptNone :: {ExceptOrNone_mk_none(n)} ((ExceptOrNone_tag(ExceptOrNone_mk_none(n)) == EN_NONE_TAG) && (ExceptOrNone_none_val(ExceptOrNone_mk_none(n)) == n))); -axiom [ax_l120c1]: (forall v: ExceptOrNone :: {ExceptOrNone_tag(v)} ((ExceptOrNone_tag(v) == EN_STR_TAG) || (ExceptOrNone_tag(v) == EN_NONE_TAG))); -axiom [ax_l141c1]: (forall s: string :: {StrOrNone_mk_str(s)} ((StrOrNone_tag(StrOrNone_mk_str(s)) == SN_STR_TAG) && (StrOrNone_str_val(StrOrNone_mk_str(s)) == s))); -axiom [ax_l144c1]: (forall n: None :: {StrOrNone_mk_none(n)} ((StrOrNone_tag(StrOrNone_mk_none(n)) == SN_NONE_TAG) && (StrOrNone_none_val(StrOrNone_mk_none(n)) == n))); -axiom [ax_l147c1]: (forall v: StrOrNone :: {StrOrNone_tag(v)} ((StrOrNone_tag(v) == SN_STR_TAG) || (StrOrNone_tag(v) == SN_NONE_TAG))); -axiom [ax_l153c1]: (forall s1: StrOrNone, s2: StrOrNone :: {strOrNone_toObject(s1), strOrNone_toObject(s2)} ((s1 != s2) ==> (strOrNone_toObject(s1) != strOrNone_toObject(s2)))); -axiom [ax_l155c1]: (forall s: StrOrNone :: {StrOrNone_tag(s)} ((StrOrNone_tag(s) == SN_STR_TAG) ==> (Object_len(strOrNone_toObject(s)) == str.len(StrOrNone_str_val(s))))); -axiom [ax_l170c1]: (forall s: string :: {AnyOrNone_mk_str(s)} ((AnyOrNone_tag(AnyOrNone_mk_str(s)) == AN_ANY_TAG) && (AnyOrNone_str_val(AnyOrNone_mk_str(s)) == s))); -axiom [ax_l173c1]: (forall n: None :: {AnyOrNone_mk_none(n)} ((AnyOrNone_tag(AnyOrNone_mk_none(n)) == AN_NONE_TAG) && (AnyOrNone_none_val(AnyOrNone_mk_none(n)) == n))); -axiom [ax_l176c1]: (forall v: AnyOrNone :: {AnyOrNone_tag(v)} ((AnyOrNone_tag(v) == AN_ANY_TAG) || (AnyOrNone_tag(v) == AN_NONE_TAG))); -axiom [ax_l191c1]: (forall s: string :: {BoolOrNone_mk_str(s)} ((BoolOrNone_tag(BoolOrNone_mk_str(s)) == BN_BOOL_TAG) && (BoolOrNone_str_val(BoolOrNone_mk_str(s)) == s))); -axiom [ax_l194c1]: (forall n: None :: {BoolOrNone_mk_none(n)} ((BoolOrNone_tag(BoolOrNone_mk_none(n)) == BN_NONE_TAG) && (BoolOrNone_none_val(BoolOrNone_mk_none(n)) == n))); -axiom [ax_l197c1]: (forall v: BoolOrNone :: {BoolOrNone_tag(v)} ((BoolOrNone_tag(v) == BN_BOOL_TAG) || (BoolOrNone_tag(v) == BN_NONE_TAG))); -axiom [ax_l215c1]: (forall b: bool :: {BoolOrStrOrNone_mk_bool(b)} ((BoolOrStrOrNone_tag(BoolOrStrOrNone_mk_bool(b)) == BSN_BOOL_TAG) && (BoolOrStrOrNone_bool_val(BoolOrStrOrNone_mk_bool(b)) <==> b))); -axiom [ax_l218c1]: (forall s: string :: {BoolOrStrOrNone_mk_str(s)} ((BoolOrStrOrNone_tag(BoolOrStrOrNone_mk_str(s)) == BSN_STR_TAG) && (BoolOrStrOrNone_str_val(BoolOrStrOrNone_mk_str(s)) == s))); -axiom [ax_l221c1]: (forall n: None :: {BoolOrStrOrNone_mk_none(n)} ((BoolOrStrOrNone_tag(BoolOrStrOrNone_mk_none(n)) == BSN_NONE_TAG) && (BoolOrStrOrNone_none_val(BoolOrStrOrNone_mk_none(n)) == n))); -axiom [ax_l224c1]: (forall v: BoolOrStrOrNone :: {BoolOrStrOrNone_tag(v)} (((BoolOrStrOrNone_tag(v) == BSN_BOOL_TAG) || (BoolOrStrOrNone_tag(v) == BSN_STR_TAG)) || (BoolOrStrOrNone_tag(v) == BSN_NONE_TAG))); - -// Uninterpreted procedures -procedure importFrom(module : string, names : ListStr, level : int) returns () -; - -procedure import(names : ListStr) returns () -; - -procedure print(msg : string) returns () -; - -function str_len(s : string) : int; - procedure test_helper_procedure(req_name : string, opt_name : StrOrNone) returns (maybe_except: ExceptOrNone) spec { requires [req_name_is_foo]: req_name == "foo"; - requires [opt_name_none_or_bar]: (if (StrOrNone_tag(opt_name) != SN_NONE_TAG) then (StrOrNone_tag(opt_name) == SN_STR_TAG) else true); + requires [opt_name_none_or_str]: (if (StrOrNone_tag(opt_name) != SN_NONE_TAG) then (StrOrNone_tag(opt_name) == SN_STR_TAG) else true); requires [opt_name_none_or_bar]: (if (StrOrNone_tag(opt_name) == SN_STR_TAG) then (StrOrNone_str_val(opt_name) == "bar") else true); free ensures [ensures_maybe_except_none]: (ExceptOrNone_tag(maybe_except) == EN_NONE_TAG); } diff --git a/Strata/Languages/Python/PyFactory.lean b/Strata/Languages/Python/PyFactory.lean new file mode 100644 index 0000000000..0d18218894 --- /dev/null +++ b/Strata/Languages/Python/PyFactory.lean @@ -0,0 +1,102 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Strata.Languages.Boogie.Verifier +import Strata.Languages.Python.Regex.ReToBoogie + +namespace Strata +namespace Python + +------------------------------------------------------------------------------- + +/- +Candidate translation pass for Python `re` code: + +## Python Code: + +``` +... +PATTERN = r"^[a-z0-9][a-z0-9.-]{1,3}[a-z0-9]$" +REGEX = re.compile(PATTERN) # default flags == 0 +... +if not re.match(REGEX, name) then # default flags == 0 + return False +... +``` + +## Corresponding Strata.Boogie: + +``` +procedure _main () { + +var PATTERN : string = "^[a-z0-9][a-z0-9.-]{1,3}[a-z0-9]$"; + +var REGEX : regex; +var $__REGEX : Except Error regex := PyReCompile(PATTERN, 0) + +if ExceptErrorRegex_isOK($__REGEX) then { + REGEX := ExceptErrorRegex_getOK($__REGEX); +} else if (Error_isUnimplemented(ExceptErrorRegex_getError($__REGEX)) then { + // Unsupported by Strata. + havoc REGEX; +} else { + // + // TODO: Implement a version of `assert` that takes an expression to be + // evaluated when the assertion fails. In this case, we'd display the + // (computed) error message in `ExceptErrorRegex_getError($__REGEX)`. + // + // E.g., `assert false (printOnFailure := ExceptErrorRegex_getError($__REGEX));` + // + assert false; +} +... + +if not PyReMatch(REGEX, name, 0) then + return false +} +``` + +-/ + +open Boogie +open Lambda LTy.Syntax LExpr.SyntaxMono + +def reCompileFunc : LFunc Boogie.BoogieLParams := + { name := "PyReCompile", + typeArgs := [], + inputs := [("string", mty[string]), + ("flags", mty[int])] + output := mty[ExceptErrorRegex], + concreteEval := some + (fun orig_e args => match args with + | [LExpr.strConst () s, LExpr.intConst () 0] => + -- This function has a concrete evaluation implementation only when + -- flags == 0. + -- (FIXME): We use `.match` mode below because we support only + -- `re.match` for now. However, `re.compile` isn't mode-specific in + -- general. + let (expr, maybe_err) := pythonRegexToBoogie s .match + match maybe_err with + | none => + -- Note: Do not use `eb` (in Boogie.Syntax) here (e.g., see below) + -- eb[(~ExceptErrorRegex_mkOK expr)] + -- that captures `expr` as an `.fvar`. + LExpr.mkApp () (.op () "ExceptErrorRegex_mkOK" none) [expr] + | some (ParseError.unimplemented msg _pattern _pos) => + LExpr.mkApp () (.op () "ExceptErrorRegex_mkErr" none) + [LExpr.mkApp () (.op () "Error_Unimplemented" none) [.strConst () (toString msg)]] + | some (ParseError.patternError msg _pattern _pos) => + LExpr.mkApp () (.op () "ExceptErrorRegex_mkErr" none) + [LExpr.mkApp () (.op () "Error_RePatternErr" none) [.strConst () (toString msg)]] + | _ => orig_e) + } + +def ReFactory : @Factory Boogie.BoogieLParams := + #[ + reCompileFunc + ] + +------------------------------------------------------------------------------- diff --git a/Strata/Languages/Python/PythonToBoogie.lean b/Strata/Languages/Python/PythonToBoogie.lean index 1aed3db7d6..40485fe70b 100644 --- a/Strata/Languages/Python/PythonToBoogie.lean +++ b/Strata/Languages/Python/PythonToBoogie.lean @@ -13,6 +13,7 @@ import Strata.Languages.Boogie.Boogie import Strata.Languages.Python.PythonDialect import Strata.Languages.Python.FunctionSignatures import Strata.Languages.Python.Regex.ReToBoogie +import Strata.Languages.Python.PyFactory import StrataTest.Internal.InternalFunctionSignatures namespace Strata diff --git a/Strata/Languages/Python/Regex/ReParser.lean b/Strata/Languages/Python/Regex/ReParser.lean index 8d3a3a8372..cc70bff24e 100644 --- a/Strata/Languages/Python/Regex/ReParser.lean +++ b/Strata/Languages/Python/Regex/ReParser.lean @@ -83,7 +83,8 @@ inductive RegexAST where ------------------------------------------------------------------------------- -/-- Parse character class like [a-z], [0-9], etc. into union of ranges and chars. -/ +/-- Parse character class like [a-z], [0-9], etc. into union of ranges and + chars. Note that this parses `|` as a character. -/ def parseCharClass (s : String) (pos : String.Pos) : Except ParseError (RegexAST × String.Pos) := do if s.get? pos != some '[' then throw (.patternError "Expected '[' at start of character class" s pos) let mut i := s.next pos @@ -117,13 +118,13 @@ def parseCharClass (s : String) (pos : String.Pos) : Except ParseError (RegexAST result := some (match result with | none => r | some prev => RegexAST.union prev r) i := s.next i - let some ast := result | throw (.patternError "Empty character class" s pos) + let some ast := result | throw (.patternError "Unterminated character set" s pos) let finalAst := if isComplement then RegexAST.complement ast else ast pure (finalAst, s.next i) ------------------------------------------------------------------------------- -/-- Parse numeric repeats like `{10}` or `{1,10}` into min and max bounds -/ +/-- Parse numeric repeats like `{10}` or `{1,10}` into min and max bounds. -/ def parseBounds (s : String) (pos : String.Pos) : Except ParseError (Nat × Nat × String.Pos) := do if s.get? pos != some '{' then throw (.patternError "Expected '{' at start of bounds" s pos) let mut i := s.next pos @@ -158,56 +159,11 @@ def parseBounds (s : String) (pos : String.Pos) : Except ParseError (Nat × Nat ------------------------------------------------------------------------------- mutual -/-- Parse group (content between parentheses) with alternation (`|`) support. -/ -partial def parseGroup (s : String) (pos : String.Pos) : Except ParseError (RegexAST × String.Pos) := do - if s.get? pos != some '(' then throw (.patternError "Expected '(' at start of group" s pos) - let mut i := s.next pos - - -- Check for extension notation (?... - if !s.atEnd i && s.get? i == some '?' then - let i1 := s.next i - if !s.atEnd i1 then - match s.get? i1 with - | some '=' => throw (.unimplemented "Positive lookahead (?=...) is not supported" s pos) - | some '!' => throw (.unimplemented "Negative lookahead (?!...) is not supported" s pos) - | _ => throw (.unimplemented "Extension notation (?...) is not supported" s pos) - - let mut alternatives : List (List RegexAST) := [[]] - - -- Parse elements until we hit ')'. - while !s.atEnd i && s.get? i != some ')' do - if s.get? i == some '|' then - -- Start new alternative. - alternatives := [] :: alternatives - i := s.next i - else - let (ast, nextPos) ← parseRegex s i - -- Add to current alternative. - alternatives := match alternatives with - | [] => [[ast]] - | head :: tail => (ast :: head) :: tail - i := nextPos - - if s.get? i != some ')' then throw (.patternError "Unclosed group: missing ')'" s i) - - -- Build result: concatenate each alternative, then union them. - let concatAlternatives := alternatives.reverse.filterMap fun alt => - match alt.reverse with - | [] => none - | [single] => some single - | head :: tail => some (tail.foldl RegexAST.concat head) - - match concatAlternatives with - | [] => - -- Empty group matches empty string. - pure (.group .empty, s.next i) - | [single] => pure (RegexAST.group single, s.next i) - | head :: tail => - let grouped := tail.foldl RegexAST.union head - pure (.group grouped, s.next i) - -/-- Parse single regex element with optional numeric repeat bounds. -/ -partial def parseRegex (s : String) (pos : String.Pos) : Except ParseError (RegexAST × String.Pos) := do +/-- +Parse atom: single element (char, class, anchor, group) with optional +quantifier. Stops at the first `|`. +-/ +partial def parseAtom (s : String) (pos : String.Pos) : Except ParseError (RegexAST × String.Pos) := do if s.atEnd pos then throw (.patternError "Unexpected end of regex" s pos) let some c := s.get? pos | throw (.patternError "Invalid position" s pos) @@ -216,12 +172,16 @@ partial def parseRegex (s : String) (pos : String.Pos) : Except ParseError (Rege if c == '*' || c == '+' || c == '{' || c == '?' then throw (.patternError s!"Quantifier '{c}' at position {pos} has nothing to quantify" s pos) + -- Detect unbalanced closing parenthesis + if c == ')' then + throw (.patternError "Unbalanced parenthesis" s pos) + -- Parse base element (anchor, char class, group, anychar, escape, or single char). let (base, nextPos) ← match c with | '^' => pure (RegexAST.anchor_start, s.next pos) | '$' => pure (RegexAST.anchor_end, s.next pos) | '[' => parseCharClass s pos - | '(' => parseGroup s pos + | '(' => parseExplicitGroup s pos | '.' => pure (RegexAST.anychar, s.next pos) | '\\' => -- Handle escape sequence. @@ -280,27 +240,66 @@ partial def parseRegex (s : String) (pos : String.Pos) : Except ParseError (Rege | _ => pure (base, nextPos) else pure (base, nextPos) -end -/-- -Parse entire regex string into list of AST nodes. --/ -partial def parseAll (s : String) (pos : String.Pos) (acc : List RegexAST) : - Except ParseError (List RegexAST) := - if s.atEnd pos then pure acc.reverse - else do - let (ast, nextPos) ← parseRegex s pos - parseAll s nextPos (ast :: acc) +/-- Parse explicit group with parentheses. -/ +partial def parseExplicitGroup (s : String) (pos : String.Pos) : Except ParseError (RegexAST × String.Pos) := do + if s.get? pos != some '(' then throw (.patternError "Expected '(' at start of group" s pos) + let mut i := s.next pos -/-- -Parse entire regex string into a single concatenated RegexAST node --/ -def parseTop (s : String) : Except ParseError RegexAST := do - let asts ← parseAll s 0 [] - match asts with - | [] => pure (.group .empty) - | [single] => pure single - | head :: tail => pure (tail.foldl RegexAST.concat head) + -- Check for extension notation (?... + if !s.atEnd i && s.get? i == some '?' then + let i1 := s.next i + if !s.atEnd i1 then + match s.get? i1 with + | some '=' => throw (.unimplemented "Positive lookahead (?=...) is not supported" s pos) + | some '!' => throw (.unimplemented "Negative lookahead (?!...) is not supported" s pos) + | _ => throw (.unimplemented "Extension notation (?...) is not supported" s pos) + + let (inner, finalPos) ← parseGroup s i (some ')') + pure (.group inner, finalPos) + +/-- Parse group: handles alternation and concatenation at current scope. -/ +partial def parseGroup (s : String) (pos : String.Pos) (endChar : Option Char) : + Except ParseError (RegexAST × String.Pos) := do + let mut alternatives : List (List RegexAST) := [[]] + let mut i := pos + + -- Parse until end of string or `endChar`. + while !s.atEnd i && (endChar.isNone || s.get? i != endChar) do + if s.get? i == some '|' then + -- Push a new scope to `alternatives`. + alternatives := [] :: alternatives + i := s.next i + else + let (ast, nextPos) ← parseAtom s i + alternatives := match alternatives with + | [] => [[ast]] + | head :: tail => (ast :: head) :: tail + i := nextPos + + -- Check for expected end character. + if let some ec := endChar then + if s.get? i != some ec then + throw (.patternError s!"Expected '{ec}'" s i) + i := s.next i + + -- Build result: concatenate each alternative, then union them. + let concatAlts := alternatives.reverse.filterMap fun alt => + match alt.reverse with + | [] => -- Empty regex. + some (.empty) + | [single] => some single + | head :: tail => some (tail.foldl RegexAST.concat head) + + match concatAlts with + | [] => pure (.empty, i) + | [single] => pure (single, i) + | head :: tail => pure (tail.foldl RegexAST.union head, i) +end + +/-- Parse entire regex string (implicit top-level group). -/ +def parseTop (s : String) : Except ParseError RegexAST := + parseGroup s 0 none |>.map (fun (r, _) => r) ------------------------------------------------------------------------------- @@ -379,9 +378,9 @@ end Test.parseBounds section Test.parseTop /-- -info: Except.ok [Strata.Python.RegexAST.union - (Strata.Python.RegexAST.union (Strata.Python.RegexAST.char '1') (Strata.Python.RegexAST.range '0' '1')) - (Strata.Python.RegexAST.char '5')] +info: Except.ok (Strata.Python.RegexAST.union + (Strata.Python.RegexAST.union (Strata.Python.RegexAST.char '1') (Strata.Python.RegexAST.range '0' '1')) + (Strata.Python.RegexAST.char '5')) -/ #guard_msgs in /- @@ -389,7 +388,7 @@ Cross-checked with: >>> re._parser.parse('[10-15]') [(IN, [(LITERAL, 49), (RANGE, (48, 49)), (LITERAL, 53)])] -/ -#eval parseAll "[10-15]" 0 [] +#eval parseTop "[10-15]" /-- info: Except.ok (Strata.Python.RegexAST.concat @@ -426,11 +425,11 @@ info: Except.error (Strata.Python.ParseError.patternError { byteIdx := 2 }) -/ #guard_msgs in -#eval parseAll ".*{1,10}" 0 [] +#eval parseTop ".*{1,10}" -/-- info: Except.ok [Strata.Python.RegexAST.star (Strata.Python.RegexAST.anychar)] -/ +/-- info: Except.ok (Strata.Python.RegexAST.star (Strata.Python.RegexAST.anychar)) -/ #guard_msgs in -#eval parseAll ".*" 0 [] +#eval parseTop ".*" /-- info: Except.error (Strata.Python.ParseError.patternError @@ -439,7 +438,7 @@ info: Except.error (Strata.Python.ParseError.patternError { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "*abc" 0 [] +#eval parseTop "*abc" /-- info: Except.error (Strata.Python.ParseError.patternError @@ -448,55 +447,63 @@ info: Except.error (Strata.Python.ParseError.patternError { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "+abc" 0 [] +#eval parseTop "+abc" -/-- info: Except.ok [Strata.Python.RegexAST.loop (Strata.Python.RegexAST.range 'a' 'z') 1 10] -/ +/-- info: Except.ok (Strata.Python.RegexAST.loop (Strata.Python.RegexAST.range 'a' 'z') 1 10) -/ #guard_msgs in -#eval parseAll "[a-z]{1,10}" 0 [] +#eval parseTop "[a-z]{1,10}" -/-- -info: Except.ok [Strata.Python.RegexAST.loop (Strata.Python.RegexAST.range 'a' 'z') 10 10] --/ +/-- info: Except.ok (Strata.Python.RegexAST.loop (Strata.Python.RegexAST.range 'a' 'z') 10 10) -/ #guard_msgs in -#eval parseAll "[a-z]{10}" 0 [] +#eval parseTop "[a-z]{10}" /-- -info: Except.ok [Strata.Python.RegexAST.anchor_start, - Strata.Python.RegexAST.union (Strata.Python.RegexAST.range 'a' 'z') (Strata.Python.RegexAST.range '0' '9'), - Strata.Python.RegexAST.loop - (Strata.Python.RegexAST.union - (Strata.Python.RegexAST.union - (Strata.Python.RegexAST.union (Strata.Python.RegexAST.range 'a' 'z') (Strata.Python.RegexAST.range '0' '9')) - (Strata.Python.RegexAST.char '.')) - (Strata.Python.RegexAST.char '-')) - 1 - 10, - Strata.Python.RegexAST.anchor_end] +info: Except.ok (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.anchor_start) + (Strata.Python.RegexAST.union (Strata.Python.RegexAST.range 'a' 'z') (Strata.Python.RegexAST.range '0' '9'))) + (Strata.Python.RegexAST.loop + (Strata.Python.RegexAST.union + (Strata.Python.RegexAST.union + (Strata.Python.RegexAST.union (Strata.Python.RegexAST.range 'a' 'z') (Strata.Python.RegexAST.range '0' '9')) + (Strata.Python.RegexAST.char '.')) + (Strata.Python.RegexAST.char '-')) + 1 + 10)) + (Strata.Python.RegexAST.anchor_end)) -/ #guard_msgs in -#eval parseAll "^[a-z0-9][a-z0-9.-]{1,10}$" 0 [] +#eval parseTop "^[a-z0-9][a-z0-9.-]{1,10}$" -- Test escape sequences (need \\ in Lean strings to get single \) /-- -info: Except.ok [Strata.Python.RegexAST.star (Strata.Python.RegexAST.anychar), - Strata.Python.RegexAST.char '.', - Strata.Python.RegexAST.char '.', - Strata.Python.RegexAST.anychar, - Strata.Python.RegexAST.star (Strata.Python.RegexAST.anychar)] +info: Except.ok (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.star (Strata.Python.RegexAST.anychar)) + (Strata.Python.RegexAST.char '.')) + (Strata.Python.RegexAST.char '.')) + (Strata.Python.RegexAST.anychar)) + (Strata.Python.RegexAST.star (Strata.Python.RegexAST.anychar))) -/ #guard_msgs in -#eval parseAll ".*\\.\\...*" 0 [] +#eval parseTop ".*\\.\\...*" /-- -info: Except.ok [Strata.Python.RegexAST.anchor_start, - Strata.Python.RegexAST.char 'x', - Strata.Python.RegexAST.char 'n', - Strata.Python.RegexAST.char '-', - Strata.Python.RegexAST.char '-', - Strata.Python.RegexAST.star (Strata.Python.RegexAST.anychar)] +info: Except.ok (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.anchor_start) (Strata.Python.RegexAST.char 'x')) + (Strata.Python.RegexAST.char 'n')) + (Strata.Python.RegexAST.char '-')) + (Strata.Python.RegexAST.char '-')) + (Strata.Python.RegexAST.star (Strata.Python.RegexAST.anychar))) -/ #guard_msgs in -#eval parseAll "^xn--.*" 0 [] +#eval parseTop "^xn--.*" /-- info: Except.error (Strata.Python.ParseError.patternError @@ -505,7 +512,7 @@ info: Except.error (Strata.Python.ParseError.patternError { byteIdx := 1 }) -/ #guard_msgs in -#eval parseAll "[x-c]" 0 [] +#eval parseTop "[x-c]" /-- info: Except.error (Strata.Python.ParseError.patternError @@ -514,45 +521,71 @@ info: Except.error (Strata.Python.ParseError.patternError { byteIdx := 2 }) -/ #guard_msgs in -#eval parseAll "[51-08]" 0 [] +#eval parseTop "[51-08]" /-- -info: Except.ok [Strata.Python.RegexAST.group - (Strata.Python.RegexAST.concat - (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.char 'a') (Strata.Python.RegexAST.char 'b')) - (Strata.Python.RegexAST.char 'c'))] +info: Except.ok (Strata.Python.RegexAST.group + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.char 'a') (Strata.Python.RegexAST.char 'b')) + (Strata.Python.RegexAST.char 'c'))) -/ #guard_msgs in -#eval parseAll "(abc)" 0 [] +#eval parseTop "(abc)" /-- -info: Except.ok [Strata.Python.RegexAST.group - (Strata.Python.RegexAST.union (Strata.Python.RegexAST.char 'a') (Strata.Python.RegexAST.char 'b'))] +info: Except.ok (Strata.Python.RegexAST.group + (Strata.Python.RegexAST.union (Strata.Python.RegexAST.char 'a') (Strata.Python.RegexAST.char 'b'))) -/ #guard_msgs in -#eval parseAll "(a|b)" 0 [] +#eval parseTop "(a|b)" /-- -info: Except.ok [Strata.Python.RegexAST.star - (Strata.Python.RegexAST.group - (Strata.Python.RegexAST.union - (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.char 'a') (Strata.Python.RegexAST.char 'b')) - (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.char 'c') (Strata.Python.RegexAST.char 'd'))))] +info: Except.ok (Strata.Python.RegexAST.union + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.anchor_start) (Strata.Python.RegexAST.char 'a')) + (Strata.Python.RegexAST.anchor_end)) + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.anchor_start) (Strata.Python.RegexAST.char 'b')) + (Strata.Python.RegexAST.anchor_end))) -/ #guard_msgs in -#eval parseAll "(ab|cd)*" 0 [] +#eval parseTop "^a$|^b$" /-- -info: Except.ok [Strata.Python.RegexAST.char 'a', Strata.Python.RegexAST.optional (Strata.Python.RegexAST.char 'b')] +info: Except.ok (Strata.Python.RegexAST.union + (Strata.Python.RegexAST.group + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.anchor_start) (Strata.Python.RegexAST.char 'a')) + (Strata.Python.RegexAST.anchor_end))) + (Strata.Python.RegexAST.group + (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.anchor_start) (Strata.Python.RegexAST.char 'b')) + (Strata.Python.RegexAST.anchor_end)))) -/ #guard_msgs in -#eval parseAll "ab?" 0 [] +#eval parseTop "(^a$)|(^b$)" /-- -info: Except.ok [Strata.Python.RegexAST.optional (Strata.Python.RegexAST.range 'a' 'z')] +info: Except.ok (Strata.Python.RegexAST.star + (Strata.Python.RegexAST.group + (Strata.Python.RegexAST.union + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.char 'a') (Strata.Python.RegexAST.char 'b')) + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.char 'c') (Strata.Python.RegexAST.char 'd'))))) -/ #guard_msgs in -#eval parseAll "[a-z]?" 0 [] +#eval parseTop "(ab|cd)*" + +/-- +info: Except.ok (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.char 'a') + (Strata.Python.RegexAST.optional (Strata.Python.RegexAST.char 'b'))) +-/ +#guard_msgs in +#eval parseTop "ab?" + +/-- info: Except.ok (Strata.Python.RegexAST.optional (Strata.Python.RegexAST.range 'a' 'z')) -/ +#guard_msgs in +#eval parseTop "[a-z]?" /-- info: Except.error (Strata.Python.ParseError.unimplemented @@ -561,7 +594,7 @@ info: Except.error (Strata.Python.ParseError.unimplemented { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "(?=test)" 0 [] +#eval parseTop "(?=test)" /-- info: Except.error (Strata.Python.ParseError.unimplemented @@ -570,7 +603,7 @@ info: Except.error (Strata.Python.ParseError.unimplemented { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "(?!silly-)" 0 [] +#eval parseTop "(?!silly-)" /-- info: Except.error (Strata.Python.ParseError.unimplemented @@ -579,7 +612,7 @@ info: Except.error (Strata.Python.ParseError.unimplemented { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "(?:abc)" 0 [] +#eval parseTop "(?:abc)" /-- info: Except.error (Strata.Python.ParseError.unimplemented @@ -588,73 +621,102 @@ info: Except.error (Strata.Python.ParseError.unimplemented { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "(?Ptest)" 0 [] +#eval parseTop "(?Ptest)" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Special sequence \\d is not supported" "\\d+" { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "\\d+" 0 [] +#eval parseTop "\\d+" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Special sequence \\w is not supported" "\\w*" { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "\\w*" 0 [] +#eval parseTop "\\w*" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Special sequence \\s is not supported" "\\s+" { byteIdx := 0 }) -/ #guard_msgs in -#eval parseAll "\\s+" 0 [] +#eval parseTop "\\s+" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Escape sequence \\n is not supported" "test\\n" { byteIdx := 4 }) -/ #guard_msgs in -#eval parseAll "test\\n" 0 [] +#eval parseTop "test\\n" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Backreference \\1 is not supported" "(a)\\1" { byteIdx := 3 }) -/ #guard_msgs in -#eval parseAll "(a)\\1" 0 [] +#eval parseTop "(a)\\1" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Non-greedy quantifier *? is not supported" "a*?" { byteIdx := 1 }) -/ #guard_msgs in -#eval parseAll "a*?" 0 [] +#eval parseTop "a*?" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Non-greedy quantifier +? is not supported" "a+?" { byteIdx := 1 }) -/ #guard_msgs in -#eval parseAll "a+?" 0 [] +#eval parseTop "a+?" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Non-greedy quantifier ?? is not supported" "a??" { byteIdx := 1 }) -/ #guard_msgs in -#eval parseAll "a??" 0 [] +#eval parseTop "a??" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Possessive quantifier *+ is not supported" "a*+" { byteIdx := 1 }) -/ #guard_msgs in -#eval parseAll "a*+" 0 [] +#eval parseTop "a*+" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Possessive quantifier ++ is not supported" "a++" { byteIdx := 1 }) -/ #guard_msgs in -#eval parseAll "a++" 0 [] +#eval parseTop "a++" /-- info: Except.error (Strata.Python.ParseError.unimplemented "Possessive quantifier ?+ is not supported" "a?+" { byteIdx := 1 }) -/ #guard_msgs in -#eval parseAll "a?+" 0 [] +#eval parseTop "a?+" + +/-- +info: Except.ok (Strata.Python.RegexAST.union + (Strata.Python.RegexAST.empty) + (Strata.Python.RegexAST.concat (Strata.Python.RegexAST.char 'x') (Strata.Python.RegexAST.char 'y'))) +-/ +#guard_msgs in +#eval parseTop "|xy" + +/-- +info: Except.ok (Strata.Python.RegexAST.concat + (Strata.Python.RegexAST.char 'a') + (Strata.Python.RegexAST.group + (Strata.Python.RegexAST.union (Strata.Python.RegexAST.empty) (Strata.Python.RegexAST.char 'b')))) +-/ +#guard_msgs in +#eval parseTop "a(|b)" + +/-- +info: Except.error (Strata.Python.ParseError.patternError "Unbalanced parenthesis" "x)" { byteIdx := 1 }) +-/ +#guard_msgs in +#eval parseTop "x)" + +/-- +info: Except.error (Strata.Python.ParseError.patternError "Unbalanced parenthesis" "())" { byteIdx := 2 }) +-/ +#guard_msgs in +#eval parseTop "())" end Test.parseTop diff --git a/Strata/Languages/Python/Regex/ReToBoogie.lean b/Strata/Languages/Python/Regex/ReToBoogie.lean index e36c90e132..4ea29793f6 100644 --- a/Strata/Languages/Python/Regex/ReToBoogie.lean +++ b/Strata/Languages/Python/Regex/ReToBoogie.lean @@ -15,52 +15,26 @@ namespace Python open Lambda.LExpr open Boogie -/-- -Map `RegexAST` nodes to Boogie expressions. Note that anchor nodes are not -handled here. See `pythonRegexToBoogie` for a preprocessing pass. --/ -def RegexAST.toBoogie (ast : RegexAST) : Except ParseError Boogie.Expression.Expr := do - match ast with - | .char c => - return (mkApp () (.op () strToRegexFunc.name none) [strConst () (toString c)]) - | .range c1 c2 => - return mkApp () (.op () reRangeFunc.name none) [strConst () (toString c1), strConst () (toString c2)] - | .union r1 r2 => - let r1b ← toBoogie r1 - let r2b ← toBoogie r2 - return mkApp () (.op () reUnionFunc.name none) [r1b, r2b] - | .concat r1 r2 => - let r1b ← toBoogie r1 - let r2b ← toBoogie r2 - return mkApp () (.op () reConcatFunc.name none) [r1b, r2b] - | .star r => - let rb ← toBoogie r - return mkApp () (.op () reStarFunc.name none) [rb] - | .plus r => - let rb ← toBoogie r - return mkApp () (.op () rePlusFunc.name none) [rb] - | .optional r => - let rb ← toBoogie r - return mkApp () (.op () reLoopFunc.name none) [rb, intConst () 0, intConst () 1] - | .loop r min max => - let rb ← toBoogie r - return mkApp () (.op () reLoopFunc.name none) [rb, intConst () min, intConst () max] - | .anychar => - return mkApp () (.op () reAllCharFunc.name none) [] - | .group r => toBoogie r - | .empty => return mkApp () (.op () strToRegexFunc.name none) [strConst () ""] - | .complement r => - let rb ← toBoogie r - return mkApp () (.op () reCompFunc.name none) [rb] - | .anchor_start => throw (.patternError "Anchor should not appear in AST conversion" "" 0) - | .anchor_end => throw (.patternError "Anchor should not appear in AST conversion" "" 0) - /-- Python regexes can be interpreted differently based on the matching mode. -Consider the regex pattern `x`. + +Consider the regex pattern that does not contain any anchors: `x`. For search, this is equivalent to `.*x.*`. For match, this is equivalent to `x.*`. -For full match, this is exactly `x`. +For fullmatch, this is exactly `x`. + +Consider the regex pattern: `^x`. +For search, this is equivalent to `x.*`. +For match, this is equivalent to `x.*`. +Again for fullmatch, this is exactly `x`. + +Consider the regex pattern: `x$`. +For search, this is equivalent to `.*x`. +For match, this is equivalent to `x`. +Again for fullmatch, this is exactly `x`. + +Consider the regex pattern: `^x$`. +For search, match, and fullmatch, this is equivalent to `x`. -/ inductive MatchMode where | search -- `re.search()` - match anywhere in string @@ -68,81 +42,295 @@ inductive MatchMode where | fullmatch -- `re.fullmatch()` - match entire string deriving Repr, BEq +/-- +When `r` is definitely consuming, this function returns `true`. +Returns `false` otherwise (i.e., when it _may_ not be consuming). +-/ +def RegexAST.alwaysConsume (r : RegexAST) : Bool := + match r with + | .char _ => true + | .range _ _ => true + | .union r1 r2 => alwaysConsume r1 && alwaysConsume r2 + | .concat r1 r2 => alwaysConsume r1 || alwaysConsume r2 + | .anychar => true + | .star _ => false + | .plus r1 => alwaysConsume r1 + | .optional _ => false + | .loop r1 n _ => alwaysConsume r1 && n ≠ 0 + | .anchor_start => false + | .anchor_end => false + | .group r1 => alwaysConsume r1 + | .empty => false + | .complement _ => true /-- -Map `pyRegex` -- a string indicating a regular expression pattern -- to a -corresponding Boogie expression, taking match mode semantics into account. -Returns a pair of (result, optional error). On error, returns `re.all` as -fallback. +Empty regex pattern; matches an empty string. -/ +def Boogie.emptyRegex : Boogie.Expression.Expr := + mkApp () (.op () strToRegexFunc.name none) [strConst () ""] + +/-- +Unmatchable regex pattern. +-/ +def Boogie.unmatchableRegex : Boogie.Expression.Expr := + mkApp () (.op () reNoneFunc.name none) [] + +partial def RegexAST.toBoogie (r : RegexAST) (atStart atEnd : Bool) : + Boogie.Expression.Expr := + match r with + | .char c => + (mkApp () (.op () strToRegexFunc.name none) [strConst () (toString c)]) + | .range c1 c2 => + mkApp () (.op () reRangeFunc.name none) [strConst () (toString c1), strConst () (toString c2)] + | .anychar => + mkApp () (.op () reAllCharFunc.name none) [] + | .empty => Boogie.emptyRegex + | .complement r => + let rb := toBoogie r atStart atEnd + mkApp () (.op () reCompFunc.name none) [rb] + | .anchor_start => + if atStart then Boogie.emptyRegex else Boogie.unmatchableRegex + | .anchor_end => + if atEnd then Boogie.emptyRegex else Boogie.unmatchableRegex + | .plus r1 => + toBoogie (.concat r1 (.star r1)) atStart atEnd + | .star r1 => + let r1b := toBoogie r1 atStart atEnd + let r2b := + match (alwaysConsume r1) with + | true => + let r1b := toBoogie r1 atStart false -- r1 at the beginning + let r2b := toBoogie r1 false false -- r1s in the middle + let r3b := toBoogie r1 false atEnd -- r1 at the end + let r2b := mkApp () (.op () reStarFunc.name none) [r2b] + mkApp () (.op () reConcatFunc.name none) + [mkApp () (.op () reConcatFunc.name none) [r1b, r2b], r3b] + | false => + mkApp () (.op () reStarFunc.name none) [r1b] + mkApp () (.op () reUnionFunc.name none) + [mkApp () (.op () reUnionFunc.name none) [Boogie.emptyRegex, r1b], r2b] + | .optional r1 => + toBoogie (.union .empty r1) atStart atEnd + | .loop r1 n m => + match n, m with + | 0, 0 => Boogie.emptyRegex + | 0, 1 => toBoogie (.union .empty r1) atStart atEnd + | 0, m => -- Note: m >= 2 + let r1b := toBoogie r1 atStart atEnd + let r2b := match (alwaysConsume r1) with + | true => + let r1b := toBoogie r1 atStart false -- r1 at the beginning + let r2b := toBoogie r1 false false -- r1s in the middle + let r3b := toBoogie r1 false atEnd -- r1 at the end + let r2b := mkApp () (.op () reLoopFunc.name none) [r2b, intConst () 0, intConst () (m-2)] + mkApp () (.op () reConcatFunc.name none) [mkApp () (.op () reConcatFunc.name none) [r1b, r2b], r3b] + | false => + mkApp () (.op () reLoopFunc.name none) [r1b, intConst () 0, intConst () m] + mkApp () (.op () reUnionFunc.name none) + [mkApp () (.op () reUnionFunc.name none) [Boogie.emptyRegex, r1b], + r2b] + | _, _ => + toBoogie (.concat r1 (.loop r1 (n - 1) (m - 1))) atStart atEnd + | .group r1 => toBoogie r1 atStart atEnd + | .concat r1 r2 => + match (alwaysConsume r1), (alwaysConsume r2) with + | true, true => + let r1b := toBoogie r1 atStart false + let r2b := toBoogie r2 false atEnd + mkApp () (.op () reConcatFunc.name none) [r1b, r2b] + | true, false => + let r1b := toBoogie r1 atStart atEnd + let r2b := toBoogie r2 false atEnd + mkApp () (.op () reConcatFunc.name none) [r1b, r2b] + | false, true => + let r1b := toBoogie r1 atStart false + let r2b := toBoogie r2 true atEnd + mkApp () (.op () reConcatFunc.name none) [r1b, r2b] + | false, false => + let r1b := toBoogie r1 atStart atEnd + let r2b := toBoogie r2 atStart atEnd + mkApp () (.op () reConcatFunc.name none) [r1b, r2b] + | .union r1 r2 => + let r1b := toBoogie r1 atStart atEnd + let r2b := toBoogie r2 atStart atEnd + mkApp () (.op () reUnionFunc.name none) [r1b, r2b] + def pythonRegexToBoogie (pyRegex : String) (mode : MatchMode := .fullmatch) : Boogie.Expression.Expr × Option ParseError := - let reAll := mkApp () (.op () reAllFunc.name none) [] - match parseAll pyRegex 0 [] with - | .error err => (reAll, some err) - | .ok asts => - - -- Detect start and end anchors, if any. - let hasStartAnchor := match asts.head? with | some .anchor_start => true | _ => false - let hasEndAnchor := match asts.getLast? with | some .anchor_end => true | _ => false - - -- Check for anchors in middle positions. - let middle := if hasStartAnchor then asts.tail else asts - let middle := if hasEndAnchor && !middle.isEmpty then middle.dropLast else middle - let hasMiddleAnchor := middle.any (fun ast => match ast with | .anchor_start | .anchor_end => true | _ => false) - - -- If anchors in middle, return `re.none` (unmatchable pattern). - -- NOTE: this is a heavy-ish semantic transform. - if hasMiddleAnchor then - let reNone := mkApp () (.op () reNoneFunc.name none) [] - (reNone, none) - else - - -- `filtered` does not have any anchors. - let filtered := middle - - -- Handle empty pattern. - if filtered.isEmpty then - (mkApp () (.op () strToRegexFunc.name none) [strConst () ""], none) - else - -- Concatenate filtered ASTs. - let core := match filtered with - | [single] => single - | head :: tail => tail.foldl RegexAST.concat head - | [] => unreachable! - - -- Convert core pattern. - match RegexAST.toBoogie core with - | .error err => (reAll, some err) - | .ok coreExpr => - -- Wrap with `Re.All` based on mode and anchors - let result := match mode, hasStartAnchor, hasEndAnchor with - -- Explicit anchors always override match mode. - | _, true, true => - -- ^pattern$ - exact match. - coreExpr - | _, true, false => - -- ^pattern - starts with. - mkApp () (.op () reConcatFunc.name none) [coreExpr, reAll] - | _, false, true => - -- pattern$ - ends with. - mkApp () (.op () reConcatFunc.name none) [reAll, coreExpr] - -- No anchors - apply match mode. - | .fullmatch, false, false => - -- exact match - coreExpr - | .match, false, false => - -- match at start - mkApp () (.op () reConcatFunc.name none) [coreExpr, reAll] - | .search, false, false => - -- match anywhere - mkApp () (.op () reConcatFunc.name none) [reAll, mkApp () (.op () reConcatFunc.name none) [coreExpr, reAll]] - (result, none) + match parseTop pyRegex with + | .error err => (mkApp () (.op () reAllFunc.name none) [], some err) + | .ok ast => + let dotStar := (RegexAST.star (.anychar)) + -- Wrap with `.*` based on mode. + let ast := match mode with + | .fullmatch => ast + | .match => .concat ast dotStar + | .search => .concat dotStar (.concat ast dotStar) + let result := RegexAST.toBoogie ast true true + (result, none) -------------------------------------------------------------------------------- +/-- +info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #a)) (~Str.ToRegEx #b))) ((~Re.Union ((~Re.Union (~Str.ToRegEx #)) ~Re.AllChar)) ((~Re.Concat ((~Re.Concat ~Re.AllChar) (~Re.Star ~Re.AllChar))) ~Re.AllChar))), + none) +-/ +#guard_msgs in +#eval Std.format$ pythonRegexToBoogie "ab.*" -- Encoded as `ab(|.|..*.)` -section Test.pythonRegexToBoogie +/-- +info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #a)) (~Str.ToRegEx #b))) ((~Re.Union ((~Re.Union (~Str.ToRegEx #)) ((~Re.Concat (~Str.ToRegEx #c)) (~Str.ToRegEx #)))) ((~Re.Concat ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #c)) ~Re.None)) (~Re.Star ((~Re.Concat (~Str.ToRegEx #c)) ~Re.None)))) ((~Re.Concat (~Str.ToRegEx #c)) (~Str.ToRegEx #))))), + none) +-/ +#guard_msgs in +#eval Std.format$ pythonRegexToBoogie "ab(c$)*" + +/-- +info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #a)) (~Str.ToRegEx #b))) ((~Re.Union ((~Re.Union (~Str.ToRegEx #)) ((~Re.Concat ((~Re.Concat ~Re.None) (~Str.ToRegEx #c))) (~Str.ToRegEx #)))) ((~Re.Concat ((~Re.Concat ((~Re.Concat ((~Re.Concat ~Re.None) (~Str.ToRegEx #c))) ~Re.None)) (~Re.Star ((~Re.Concat ((~Re.Concat ~Re.None) (~Str.ToRegEx #c))) ~Re.None)))) ((~Re.Concat ((~Re.Concat ~Re.None) (~Str.ToRegEx #c))) (~Str.ToRegEx #))))), + none) +-/ +#guard_msgs in +#eval Std.format$ pythonRegexToBoogie "ab(^c$)*" + +/-- info: (((~Re.Concat (~Str.ToRegEx #a)) (~Str.ToRegEx #b)), none) -/ +#guard_msgs in +#eval Std.format$ pythonRegexToBoogie "ab" + +/-- info: (((~Re.Union (~Str.ToRegEx #a)) (~Str.ToRegEx #b)), none) -/ +#guard_msgs in +#eval Std.format$ pythonRegexToBoogie "a|b" + +/-- +info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) (~Str.ToRegEx #b)), none) +-/ +#guard_msgs in +#eval Std.format$ pythonRegexToBoogie "^ab" + +/-- +info: (((~Re.Concat ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) (~Str.ToRegEx #b))) (~Str.ToRegEx #)), + none) +-/ +#guard_msgs in +#eval Std.format$ pythonRegexToBoogie "^ab$" + +/-- info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #a)) ~Re.None)) (~Str.ToRegEx #b)), none) -/ +#guard_msgs in +#eval Std.format$ pythonRegexToBoogie "(a$)b" + +/-- +info: (((~Re.Concat ((~Re.Concat ((~Re.Concat ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #))) (~Str.ToRegEx #))) (~Str.ToRegEx #a))) (~Str.ToRegEx #))) (~Str.ToRegEx #)), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "^^^a$$" + +/-- +info: (((~Re.Concat (~Str.ToRegEx #)) ((~Re.Concat ((~Re.Concat ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #))) (~Str.ToRegEx #a))) (~Str.ToRegEx #))) (~Str.ToRegEx #))), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "^(^^a$$)" +/-- +info: (((~Re.Union ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) (~Str.ToRegEx #))) ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #b))) (~Str.ToRegEx #))), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "(^a$)|(^b$)" + +/-- +info: (((~Re.Concat (~Str.ToRegEx #c)) ((~Re.Union ((~Re.Concat ~Re.None) (~Str.ToRegEx #a))) ((~Re.Concat ~Re.None) (~Str.ToRegEx #b)))), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "c((^a)|(^b))" + +/-- +info: (((~Re.Concat ((~Re.Union ((~Re.Concat (~Str.ToRegEx #a)) ~Re.None)) ((~Re.Concat (~Str.ToRegEx #b)) ~Re.None))) (~Str.ToRegEx #c)), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "((a$)|(b$))c" + +/-- +info: (((~Re.Concat ((~Re.Union ((~Re.Concat (~Str.ToRegEx #a)) ~Re.None)) (~Str.ToRegEx #b))) (~Str.ToRegEx #c)), none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "((a$)|(b))c" + +/-- +info: (((~Re.Concat (~Str.ToRegEx #c)) ((~Re.Union ((~Re.Concat (~Str.ToRegEx #a)) (~Str.ToRegEx #))) ((~Re.Concat ((~Re.Concat ~Re.None) (~Str.ToRegEx #b))) (~Str.ToRegEx #)))), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "c((a$)|(^b$))" + +/-- +info: (((~Re.Concat ((~Re.Union ((~Re.Concat (~Str.ToRegEx #a)) ~Re.None)) (~Str.ToRegEx #b))) (~Str.ToRegEx #c)), none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "((a$)|(b))c" + +/-- info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) ~Re.None)) (~Str.ToRegEx #b)), none) -/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "^$b" + +/-- +info: (((~Re.Union ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) (~Str.ToRegEx #))) ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) ~Re.None)) (~Str.ToRegEx #b))), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "^a$|^$b" + +/-- +info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #c)) ((~Re.Union ((~Re.Concat ~Re.None) (~Str.ToRegEx #a))) ((~Re.Concat (~Str.ToRegEx #b)) ~Re.None)))) (~Str.ToRegEx #d)), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "c(^a|b$)d" + +/-- +info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #c)) ((~Re.Union ((~Re.Concat ~Re.None) (~Str.ToRegEx #a))) ((~Re.Concat (~Str.ToRegEx #b)) ~Re.None)))) (~Str.ToRegEx #d)), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "(c(^a|b$))d" + +/-- +info: (((~Re.Concat ((~Re.Union ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) ((~Re.Concat (~Str.ToRegEx #b)) ~Re.None))) ((~Re.Union ((~Re.Concat ~Re.None) (~Str.ToRegEx #c))) ((~Re.Concat (~Str.ToRegEx #d)) (~Str.ToRegEx #)))), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "(^a|b$)(^c|d$)" + +/-- +info: (((~Re.Concat ((~Re.Concat ((~Re.Union ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) ((~Re.Concat (~Str.ToRegEx #b)) ~Re.None))) ~Re.None)) (~Str.ToRegEx #c)), + none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "((^a|b$)^)c" + +/-- info: (((~Re.Concat ((~Re.Union (~Str.ToRegEx #)) ~Re.None)) (~Str.ToRegEx #c)), none) -/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "(^|$)c" + +/-- info: (((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #)), none) -/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "^^" + +/-- +info: (((~Re.Concat ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #))) (~Str.ToRegEx #))) (~Str.ToRegEx #)), none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "^$$^" + +/-- info: (((~Re.Concat ((~Re.Union (~Str.ToRegEx #)) (~Str.ToRegEx #))) (~Str.ToRegEx #)), none) -/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "(^|$)^" + +/-- +info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) (~Str.ToRegEx #)), none) +-/ +#guard_msgs in +#eval Std.format $ pythonRegexToBoogie "^a$" .fullmatch /-- info: (~Re.All, @@ -152,15 +340,17 @@ info: (~Re.All, #eval Std.format $ pythonRegexToBoogie "x{100,2}" .fullmatch -- (unmatchable) -/-- info: (~Re.None, none) -/ +/-- info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #a)) ~Re.None)) (~Str.ToRegEx #b)), none) -/ #guard_msgs in #eval Std.format $ pythonRegexToBoogie "a^b" .fullmatch -/-- info: (~Re.None, none) -/ +/-- +info: (((~Re.Concat ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) ~Re.None)) (~Str.ToRegEx #b)), none) +-/ #guard_msgs in #eval Std.format $ pythonRegexToBoogie "^a^b" .fullmatch -/-- info: (~Re.None, none) -/ +/-- info: (((~Re.Concat ((~Re.Concat (~Str.ToRegEx #a)) ~Re.None)) (~Str.ToRegEx #b)), none) -/ #guard_msgs in #eval Std.format $ pythonRegexToBoogie "a$b" .fullmatch @@ -180,27 +370,37 @@ info: (~Re.All, #guard_msgs in #eval Std.format $ pythonRegexToBoogie "a" .fullmatch -/-- info: (((~Re.Concat (~Str.ToRegEx #a)) ~Re.All), none) -/ +/-- +info: (((~Re.Concat (~Str.ToRegEx #a)) ((~Re.Union ((~Re.Union (~Str.ToRegEx #)) ~Re.AllChar)) ((~Re.Concat ((~Re.Concat ~Re.AllChar) (~Re.Star ~Re.AllChar))) ~Re.AllChar))), + none) +-/ #guard_msgs in #eval Std.format $ pythonRegexToBoogie "a" .match -- search mode tests -/-- info: (((~Re.Concat ~Re.All) ((~Re.Concat (~Str.ToRegEx #a)) ~Re.All)), none) -/ +/-- +info: (((~Re.Concat ((~Re.Union ((~Re.Union (~Str.ToRegEx #)) ~Re.AllChar)) ((~Re.Concat ((~Re.Concat ~Re.AllChar) (~Re.Star ~Re.AllChar))) ~Re.AllChar))) ((~Re.Concat (~Str.ToRegEx #a)) ((~Re.Union ((~Re.Union (~Str.ToRegEx #)) ~Re.AllChar)) ((~Re.Concat ((~Re.Concat ~Re.AllChar) (~Re.Star ~Re.AllChar))) ~Re.AllChar)))), + none) +-/ #guard_msgs in #eval Std.format $ pythonRegexToBoogie "a" .search -/-- info: ((~Str.ToRegEx #a), none) -/ +/-- +info: (((~Re.Concat ((~Re.Union ((~Re.Union (~Str.ToRegEx #)) ~Re.AllChar)) ((~Re.Concat ((~Re.Concat ~Re.AllChar) (~Re.Star ~Re.AllChar))) ~Re.AllChar))) ((~Re.Concat ((~Re.Concat ((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a))) (~Str.ToRegEx #))) ((~Re.Union ((~Re.Union (~Str.ToRegEx #)) ~Re.AllChar)) ((~Re.Concat ((~Re.Concat ~Re.AllChar) (~Re.Star ~Re.AllChar))) ~Re.AllChar)))), + none) +-/ #guard_msgs in #eval Std.format $ pythonRegexToBoogie "^a$" .search -/-- info: (((~Re.Concat (~Str.ToRegEx #a)) ~Re.All), none) -/ +/-- info: (((~Re.Concat (~Str.ToRegEx #)) (~Str.ToRegEx #a)), none) -/ #guard_msgs in #eval Std.format $ pythonRegexToBoogie "^a" .fullmatch -/-- info: (((~Re.Concat ~Re.All) (~Str.ToRegEx #a)), none) -/ -#guard_msgs in -#eval Std.format $ pythonRegexToBoogie "a$" .match +-- -- BAD +-- #eval Std.format $ pythonRegexToBoogie "a$.*" .fullmatch +-- +-- -- BAD +-- #eval Std.format $ pythonRegexToBoogie "a$" .match -end Test.pythonRegexToBoogie ------------------------------------------------------------------------------- diff --git a/StrataMain.lean b/StrataMain.lean index 95b29f9de1..85ac82620b 100644 --- a/StrataMain.lean +++ b/StrataMain.lean @@ -193,7 +193,10 @@ def pyAnalyzeCommand : Command where if verbose then IO.print newPgm let vcResults ← EIO.toIO (fun f => IO.Error.userError (toString f)) - (Boogie.verify "z3" newPgm { Options.default with stopOnFirstError := false, verbose }) + (Boogie.verify "z3" newPgm { Options.default with stopOnFirstError := false, + verbose, + removeIrrelevantAxioms := true } + (moreFns := Strata.Python.ReFactory)) let mut s := "" for vcResult in vcResults do s := s ++ s!"\n{vcResult.obligation.label}: {Std.format vcResult.result}\n" diff --git a/StrataTest/Languages/Python/expected/test_0.expected b/StrataTest/Languages/Python/expected/test_0.expected index 84dccf1ffd..9e6ba26cf6 100644 --- a/StrataTest/Languages/Python/expected/test_0.expected +++ b/StrataTest/Languages/Python/expected/test_0.expected @@ -3,24 +3,25 @@ ensures_maybe_except_none: verified (Origin_test_helper_procedure_Requires)req_name_is_foo: verified -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified +(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified (Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified (Origin_test_helper_procedure_Requires)req_name_is_foo: verified -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified +(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified (Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified -(Origin_test_helper_procedure_Requires)req_name_is_foo: unknown +(Origin_test_helper_procedure_Requires)req_name_is_foo: failed +CEx: -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified +(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified (Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified (Origin_test_helper_procedure_Requires)req_name_is_foo: verified -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified +(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified (Origin_test_helper_procedure_Requires)opt_name_none_or_bar: unknown diff --git a/StrataTest/Languages/Python/expected/test_1.expected b/StrataTest/Languages/Python/expected/test_1.expected index c8d278c46b..885cc9cf90 100644 --- a/StrataTest/Languages/Python/expected/test_1.expected +++ b/StrataTest/Languages/Python/expected/test_1.expected @@ -1,8 +1,9 @@ ensures_maybe_except_none: verified -(Origin_test_helper_procedure_Requires)req_name_is_foo: unknown +(Origin_test_helper_procedure_Requires)req_name_is_foo: failed +CEx: ($__s8, "") -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified +(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified (Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified diff --git a/StrataTest/Languages/Python/run_py_analyze.sh b/StrataTest/Languages/Python/run_py_analyze.sh index 44c0218dea..50726ffd8c 100755 --- a/StrataTest/Languages/Python/run_py_analyze.sh +++ b/StrataTest/Languages/Python/run_py_analyze.sh @@ -20,4 +20,4 @@ for test_file in test_[0-9]*.py; do exit 1 fi fi -done \ No newline at end of file +done From 574e765bb8835e8a4f424f99b6550e726a3aced1 Mon Sep 17 00:00:00 2001 From: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Date: Tue, 2 Dec 2025 13:52:19 -0600 Subject: [PATCH 04/68] Andrewmwells/pyanalyze tests (#249) Add pyAnalyze tests. Inline procedure calls. Move test_helper procedure spec to asserts within body. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/Languages/Python/BoogiePrelude.lean | 13 ++- StrataMain.lean | 5 + .../Languages/Python/expected/README.md | 79 ++++++++++++++ .../Languages/Python/expected/test_0.expected | 27 ----- .../Languages/Python/expected/test_1.expected | 9 -- .../expected/test_function_def_calls.expected | 27 +++++ .../test_precondition_verification.expected | 33 ++++++ StrataTest/Languages/Python/run_py_analyze.sh | 13 +-- StrataTest/Languages/Python/test_0.py | 15 --- StrataTest/Languages/Python/test_helper.py | 64 ++++++++++- .../Python/tests/missing_required_param.py | 38 +++++++ .../Python/tests/test_foo_client_folder.py | 101 ++++++++++++++++++ .../test_function_def_calls.py} | 0 .../Python/tests/test_invalid_client_type.py | 15 +++ .../tests/test_precondition_verification.py | 20 ++++ .../Python/tests/test_unsupported_config.py | 25 +++++ 16 files changed, 419 insertions(+), 65 deletions(-) create mode 100644 StrataTest/Languages/Python/expected/README.md delete mode 100644 StrataTest/Languages/Python/expected/test_0.expected delete mode 100644 StrataTest/Languages/Python/expected/test_1.expected create mode 100644 StrataTest/Languages/Python/expected/test_function_def_calls.expected create mode 100644 StrataTest/Languages/Python/expected/test_precondition_verification.expected delete mode 100644 StrataTest/Languages/Python/test_0.py create mode 100644 StrataTest/Languages/Python/tests/missing_required_param.py create mode 100644 StrataTest/Languages/Python/tests/test_foo_client_folder.py rename StrataTest/Languages/Python/{test_1.py => tests/test_function_def_calls.py} (100%) create mode 100644 StrataTest/Languages/Python/tests/test_invalid_client_type.py create mode 100644 StrataTest/Languages/Python/tests/test_precondition_verification.py create mode 100644 StrataTest/Languages/Python/tests/test_unsupported_config.py diff --git a/Strata/Languages/Python/BoogiePrelude.lean b/Strata/Languages/Python/BoogiePrelude.lean index 558c954086..2ee19ff787 100644 --- a/Strata/Languages/Python/BoogiePrelude.lean +++ b/Strata/Languages/Python/BoogiePrelude.lean @@ -315,11 +315,16 @@ axiom [unique_BoolOrStrOrNoneTag]: BSN_BOOL_TAG != BSN_STR_TAG && BSN_BOOL_TAG ! procedure test_helper_procedure(req_name : string, opt_name : StrOrNone) returns (maybe_except: ExceptOrNone) spec { requires [req_name_is_foo]: req_name == "foo"; - requires [opt_name_none_or_str]: (if (StrOrNone_tag(opt_name) != SN_NONE_TAG) then (StrOrNone_tag(opt_name) == SN_STR_TAG) else true); - requires [opt_name_none_or_bar]: (if (StrOrNone_tag(opt_name) == SN_STR_TAG) then (StrOrNone_str_val(opt_name) == "bar") else true); - free ensures [ensures_maybe_except_none]: (ExceptOrNone_tag(maybe_except) == EN_NONE_TAG); + requires [req_opt_name_none_or_str]: (if (StrOrNone_tag(opt_name) != SN_NONE_TAG) then (StrOrNone_tag(opt_name) == SN_STR_TAG) else true); + requires [req_opt_name_none_or_bar]: (if (StrOrNone_tag(opt_name) == SN_STR_TAG) then (StrOrNone_str_val(opt_name) == "bar") else true); + ensures [ensures_maybe_except_none]: (ExceptOrNone_tag(maybe_except) == EN_NONE_TAG); } -{}; +{ + assert [assert_name_is_foo]: req_name == "foo"; + assert [assert_opt_name_none_or_str]: (if (StrOrNone_tag(opt_name) != SN_NONE_TAG) then (StrOrNone_tag(opt_name) == SN_STR_TAG) else true); + assert [assert_opt_name_none_or_bar]: (if (StrOrNone_tag(opt_name) == SN_STR_TAG) then (StrOrNone_str_val(opt_name) == "bar") else true); + assume [assume_maybe_except_none]: (ExceptOrNone_tag(maybe_except) == EN_NONE_TAG); +}; #end diff --git a/StrataMain.lean b/StrataMain.lean index 85ac82620b..5ad698aae9 100644 --- a/StrataMain.lean +++ b/StrataMain.lean @@ -10,6 +10,7 @@ import Strata.DDM.Ion import Strata.Util.IO import Strata.Languages.Python.Python +import StrataTest.Transform.ProcedureInlining def exitFailure {α} (message : String) : IO α := do IO.eprintln (message ++ "\n\nRun strata --help for additional help.") @@ -192,6 +193,10 @@ def pyAnalyzeCommand : Command where let newPgm : Boogie.Program := { decls := preludePgm.decls ++ bpgm.decls } if verbose then IO.print newPgm + let newPgm := runInlineCall newPgm + if verbose then + IO.println "Inlined: " + IO.print newPgm let vcResults ← EIO.toIO (fun f => IO.Error.userError (toString f)) (Boogie.verify "z3" newPgm { Options.default with stopOnFirstError := false, verbose, diff --git a/StrataTest/Languages/Python/expected/README.md b/StrataTest/Languages/Python/expected/README.md new file mode 100644 index 0000000000..cf5be1a892 --- /dev/null +++ b/StrataTest/Languages/Python/expected/README.md @@ -0,0 +1,79 @@ + +# How to read expected outputs +`StrataTest/Languages/Python/expected/test_precondition_verification.expected` looks like this: + +``` +assert_name_is_foo: verified + +assert_opt_name_none_or_str: verified + +assert_opt_name_none_or_bar: verified + +ensures_maybe_except_none: verified + +test_helper_procedure_assert_name_is_foo_3: verified + +test_helper_procedure_assert_opt_name_none_or_str_4: verified + +test_helper_procedure_assert_opt_name_none_or_bar_5: verified + +test_helper_procedure_assert_name_is_foo_11: verified + +test_helper_procedure_assert_opt_name_none_or_str_12: verified + +test_helper_procedure_assert_opt_name_none_or_bar_13: verified + +test_helper_procedure_assert_name_is_foo_19: failed +CEx: + +test_helper_procedure_assert_opt_name_none_or_str_20: verified + +test_helper_procedure_assert_opt_name_none_or_bar_21: verified + +test_helper_procedure_assert_name_is_foo_27: verified + +test_helper_procedure_assert_opt_name_none_or_str_28: verified + +test_helper_procedure_assert_opt_name_none_or_bar_29: unknown + +``` + +This can be read as: + +``` +assert_name_is_foo: verified + +assert_opt_name_none_or_str: verified + +assert_opt_name_none_or_bar: verified + +ensures_maybe_except_none: verified +``` + +These come from checking that the assertions/ensures in `test_helper_procedure` hold. +``` +procedure test_helper_procedure(req_name : string, opt_name : StrOrNone) returns (maybe_except: ExceptOrNone) +spec { + requires [req_name_is_foo]: req_name == "foo"; + requires [req_opt_name_none_or_str]: (if (StrOrNone_tag(opt_name) != SN_NONE_TAG) then (StrOrNone_tag(opt_name) == SN_STR_TAG) else true); + requires [req_opt_name_none_or_bar]: (if (StrOrNone_tag(opt_name) == SN_STR_TAG) then (StrOrNone_str_val(opt_name) == "bar") else true); + ensures [ensures_maybe_except_none]: (ExceptOrNone_tag(maybe_except) == EN_NONE_TAG); +} +{ + assert [assert_name_is_foo]: req_name == "foo"; + assert [assert_opt_name_none_or_str]: (if (StrOrNone_tag(opt_name) != SN_NONE_TAG) then (StrOrNone_tag(opt_name) == SN_STR_TAG) else true); + assert [assert_opt_name_none_or_bar]: (if (StrOrNone_tag(opt_name) == SN_STR_TAG) then (StrOrNone_str_val(opt_name) == "bar") else true); + assume [assume_maybe_except_none]: (ExceptOrNone_tag(maybe_except) == EN_NONE_TAG); +}; +``` + +Each of the following triples: +``` +test_helper_procedure_assert_name_is_foo_3: verified + +test_helper_procedure_assert_opt_name_none_or_str_5: verified + +test_helper_procedure_assert_opt_name_none_or_bar_5: verified +``` + +Comes from checking the assertions in the inlined calls of `test_helper_procedure`. The first two triples succeed, the third has a failure because `"Foo" != "foo"` and the final has an `unknown` (that should ideally be a failure) because `"Bar" != "bar"`. \ No newline at end of file diff --git a/StrataTest/Languages/Python/expected/test_0.expected b/StrataTest/Languages/Python/expected/test_0.expected deleted file mode 100644 index 9e6ba26cf6..0000000000 --- a/StrataTest/Languages/Python/expected/test_0.expected +++ /dev/null @@ -1,27 +0,0 @@ - -ensures_maybe_except_none: verified - -(Origin_test_helper_procedure_Requires)req_name_is_foo: verified - -(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified - -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified - -(Origin_test_helper_procedure_Requires)req_name_is_foo: verified - -(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified - -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified - -(Origin_test_helper_procedure_Requires)req_name_is_foo: failed -CEx: - -(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified - -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified - -(Origin_test_helper_procedure_Requires)req_name_is_foo: verified - -(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified - -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: unknown diff --git a/StrataTest/Languages/Python/expected/test_1.expected b/StrataTest/Languages/Python/expected/test_1.expected deleted file mode 100644 index 885cc9cf90..0000000000 --- a/StrataTest/Languages/Python/expected/test_1.expected +++ /dev/null @@ -1,9 +0,0 @@ - -ensures_maybe_except_none: verified - -(Origin_test_helper_procedure_Requires)req_name_is_foo: failed -CEx: ($__s8, "") - -(Origin_test_helper_procedure_Requires)opt_name_none_or_str: verified - -(Origin_test_helper_procedure_Requires)opt_name_none_or_bar: verified diff --git a/StrataTest/Languages/Python/expected/test_function_def_calls.expected b/StrataTest/Languages/Python/expected/test_function_def_calls.expected new file mode 100644 index 0000000000..7ce880cc68 --- /dev/null +++ b/StrataTest/Languages/Python/expected/test_function_def_calls.expected @@ -0,0 +1,27 @@ + +assert_name_is_foo: verified + +assert_opt_name_none_or_str: verified + +assert_opt_name_none_or_bar: verified + +ensures_maybe_except_none: verified + +test_helper_procedure_assert_name_is_foo_3: failed +CEx: ($__s8, "") + +test_helper_procedure_assert_opt_name_none_or_str_4: verified + +test_helper_procedure_assert_opt_name_none_or_bar_5: verified + +(Origin_test_helper_procedure_Requires)req_name_is_foo: verified + +(Origin_test_helper_procedure_Requires)req_opt_name_none_or_str: verified + +(Origin_test_helper_procedure_Requires)req_opt_name_none_or_bar: verified + +(Origin_test_helper_procedure_Requires)req_name_is_foo: verified + +(Origin_test_helper_procedure_Requires)req_opt_name_none_or_str: verified + +(Origin_test_helper_procedure_Requires)req_opt_name_none_or_bar: verified diff --git a/StrataTest/Languages/Python/expected/test_precondition_verification.expected b/StrataTest/Languages/Python/expected/test_precondition_verification.expected new file mode 100644 index 0000000000..36b86b4dae --- /dev/null +++ b/StrataTest/Languages/Python/expected/test_precondition_verification.expected @@ -0,0 +1,33 @@ + +assert_name_is_foo: verified + +assert_opt_name_none_or_str: verified + +assert_opt_name_none_or_bar: verified + +ensures_maybe_except_none: verified + +test_helper_procedure_assert_name_is_foo_3: verified + +test_helper_procedure_assert_opt_name_none_or_str_4: verified + +test_helper_procedure_assert_opt_name_none_or_bar_5: verified + +test_helper_procedure_assert_name_is_foo_11: verified + +test_helper_procedure_assert_opt_name_none_or_str_12: verified + +test_helper_procedure_assert_opt_name_none_or_bar_13: verified + +test_helper_procedure_assert_name_is_foo_19: failed +CEx: + +test_helper_procedure_assert_opt_name_none_or_str_20: verified + +test_helper_procedure_assert_opt_name_none_or_bar_21: verified + +test_helper_procedure_assert_name_is_foo_27: verified + +test_helper_procedure_assert_opt_name_none_or_str_28: verified + +test_helper_procedure_assert_opt_name_none_or_bar_29: unknown diff --git a/StrataTest/Languages/Python/run_py_analyze.sh b/StrataTest/Languages/Python/run_py_analyze.sh index 50726ffd8c..252cdd10eb 100755 --- a/StrataTest/Languages/Python/run_py_analyze.sh +++ b/StrataTest/Languages/Python/run_py_analyze.sh @@ -1,23 +1,20 @@ #!/bin/bash -for test_file in test_[0-9]*.py; do +for test_file in tests/test_*.py; do if [ -f "$test_file" ]; then base_name=$(basename "$test_file" .py) - ion_file="${base_name}.python.st.ion" + ion_file="tests/${base_name}.python.st.ion" expected_file="expected/${base_name}.expected" - (cd ../../../Tools/Python && python -m strata.gen py_to_strata "../../StrataTest/Languages/Python/$test_file" "../../StrataTest/Languages/Python/$ion_file") + if [ -f "$expected_file" ]; then + (cd ../../../Tools/Python && python -m strata.gen py_to_strata "../../StrataTest/Languages/Python/$test_file" "../../StrataTest/Languages/Python/$ion_file") - output=$(cd ../../.. && lake exe strata pyAnalyze --include Tools/Python/test_results/dialects "StrataTest/Languages/Python/${ion_file}" 0) + output=$(cd ../../.. && lake exe strata pyAnalyze --include Tools/Python/test_results/dialects "StrataTest/Languages/Python/${ion_file}" 0) - if [ -f "$expected_file" ]; then if ! echo "$output" | diff -q "$expected_file" - > /dev/null; then echo "ERROR: Analysis output for $base_name does not match expected result" echo "$output" | diff "$expected_file" - fi - else - echo "ERROR: No expected file found for $base_name" - exit 1 fi fi done diff --git a/StrataTest/Languages/Python/test_0.py b/StrataTest/Languages/Python/test_0.py deleted file mode 100644 index a4e5cc1da3..0000000000 --- a/StrataTest/Languages/Python/test_0.py +++ /dev/null @@ -1,15 +0,0 @@ -import test_helper - -# Test minimal precondition verification - -# Should succeed -test_helper.procedure("foo") - -# Should succeed -test_helper.procedure("foo", opt_name = "bar") - -# Should error -test_helper.procedure("Foo") - -# Should error -test_helper.procedure("foo", opt_name = "Bar") \ No newline at end of file diff --git a/StrataTest/Languages/Python/test_helper.py b/StrataTest/Languages/Python/test_helper.py index e8476d836c..4972ff83d9 100644 --- a/StrataTest/Languages/Python/test_helper.py +++ b/StrataTest/Languages/Python/test_helper.py @@ -1,3 +1,63 @@ -def procedure (req_name: str, opt_name : str | None) -> None: +"""Test helper functions for Strata Python language testing.""" + +from typing import Dict, Any + +def procedure(req_name: str, opt_name: str | None) -> None: + """Test procedure with required and optional parameters. + + Args: + req_name: Required name parameter, must be "foo" + opt_name: Optional name parameter, must be None or "bar" + """ assert req_name == "foo" - assert opt_name is None or opt_name == "bar" \ No newline at end of file + assert opt_name is None or opt_name == "bar" + +def create_client(client_type: str, client_config: str) -> Any: + """Create a test client with specified type and configuration. + + Args: + client_type: Type of client, must be 'foo' or 'bar' + client_config: Configuration string for the client + + Returns: + Dictionary containing client type and configuration + """ + assert client_type in ['foo', 'bar'] + return {'client_type': client_type, 'client_config': client_config} + +def upload(client: Any, folder: str, key: str, payload: Any, encryption_type: str | None = None, encryption_key_id: str | None = None) -> Dict[str, Any]: + """Upload payload to specified folder with optional encryption. + + Args: + client: Client object for upload + folder: Target folder name (3-63 chars, lowercase, specific format rules) + key: Upload key identifier + payload: Data to upload + encryption_type: Optional encryption method + encryption_key_id: Optional encryption key ID (requires encryption_type) + + Returns: + Dictionary with upload status + """ + assert len(folder) >= 3 and len(folder) <= 63 + assert folder.replace('-', '').replace('.', '').islower() + assert not folder.startswith('-') and not folder.startswith('.') + assert not folder.startswith('xn--') + assert not folder.endswith('-alias') + if encryption_key_id is not None: + assert encryption_type is not None + return {'status': 'success'} + +def invoke(client: Any, model_id: str, input_data: str) -> str: + """Invoke model with input data using specified client. + + Args: + client: Client object (config cannot be 'config-c') + model_id: Identifier for the model to invoke + input_data: Input data for model processing + + Returns: + Model response string + """ + assert client['client_config'] != 'config-c' + return 'model response' \ No newline at end of file diff --git a/StrataTest/Languages/Python/tests/missing_required_param.py b/StrataTest/Languages/Python/tests/missing_required_param.py new file mode 100644 index 0000000000..2964f94952 --- /dev/null +++ b/StrataTest/Languages/Python/tests/missing_required_param.py @@ -0,0 +1,38 @@ +from typing import Dict, Any +import test_helper + +print("=== Test 1: Create valid foo client ===") +storage_client = test_helper.create_client('foo', 'config-a') +print("✓ Successfully created storage client\n") + +folder_name: str = "test-folder" +key: str = "test-encryption.txt" +payload: bytes = b"sample encrypted content" + +print("=== Test 2: encryption_key_id without encryption_type parameter ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=storage_client, + folder=folder_name, + key=key, + content=payload, + encryption_key_id='key-12345678-1234-1234-1234-123456789012' + ) + print("✗ ERROR: Should have raised AssertionError") +except AssertionError as e: + print(f"✓ Caught expected AssertionError: {e}\n") +except Exception as e: + print(f"✗ Caught unexpected exception: {type(e).__name__}: {e}\n") + +print("=== Test 3: encryption_type='AES256' without encryption_key_id (valid) ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=storage_client, + folder=folder_name, + key=key + "-aes256", + content=payload, + encryption_type='AES256' + ) + print("✓ Successfully called upload with valid encryption configuration") +except Exception as e: + print(f"✗ Unexpected exception: {type(e).__name__}: {e}") diff --git a/StrataTest/Languages/Python/tests/test_foo_client_folder.py b/StrataTest/Languages/Python/tests/test_foo_client_folder.py new file mode 100644 index 0000000000..c19ee691ea --- /dev/null +++ b/StrataTest/Languages/Python/tests/test_foo_client_folder.py @@ -0,0 +1,101 @@ +from typing import Dict, Any +import test_helper + +print("=== Test 1: Create valid foo client ===") +foo_client = test_helper.create_client('foo', 'config-a') +print("✓ Successfully created foo client\n") + +payload: str = "sample contents for test.txt" +key: str = "test.txt" + +short_folder_name: str = "ab" +long_folder_name: str = "a" * 64 +invalid_chars_folder: str = "MyFolderName" +invalid_pattern_folder: str = "-invalid-folder" +invalid_prefix_folder: str = "xn--invalid-folder" +invalid_suffix_folder: str = "invalid-folder-alias" +valid_folder_name: str = "test-folder" + +print("=== Test 2: folder name too short (< 3 chars) ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=foo_client, + folder=short_folder_name, + key=key, + content=payload + ) + print("✗ ERROR: Should have raised AssertionError") +except AssertionError as e: + print(f"✓ Caught expected AssertionError: {str(e)[:80]}...\n") + +print("=== Test 3: folder name too long (> 63 chars) ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=foo_client, + folder=long_folder_name, + key=key, + content=payload + ) + print("✗ ERROR: Should have raised AssertionError") +except AssertionError as e: + print(f"✓ Caught expected AssertionError: {str(e)[:80]}...\n") + +print("=== Test 4: folder name contains uppercase (invalid) ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=foo_client, + folder=invalid_chars_folder, + key=key, + content=payload + ) + print("✗ ERROR: Should have raised AssertionError") +except AssertionError as e: + print(f"✓ Caught expected AssertionError: {str(e)[:80]}...\n") + +print("=== Test 5: folder name starts with hyphen (invalid) ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=foo_client, + folder=invalid_pattern_folder, + key=key, + content=payload + ) + print("✗ ERROR: Should have raised AssertionError") +except AssertionError as e: + print(f"✓ Caught expected AssertionError: {str(e)[:80]}...\n") + +print("=== Test 6: folder name starts with 'xn--' (invalid prefix) ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=foo_client, + folder=invalid_prefix_folder, + key=key, + content=payload + ) + print("✗ ERROR: Should have raised AssertionError") +except AssertionError as e: + print(f"✓ Caught expected AssertionError: {str(e)[:80]}...\n") + +print("=== Test 7: folder name ends with '-alias' (invalid suffix) ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=foo_client, + folder=invalid_suffix_folder, + key=key, + content=payload + ) + print("✗ ERROR: Should have raised AssertionError") +except AssertionError as e: + print(f"✓ Caught expected AssertionError: {str(e)[:80]}...\n") + +print("=== Test 8: Valid folder name following all rules ===") +try: + result: Dict[str, Any] = test_helper.upload( + client=foo_client, + folder=valid_folder_name, + key=key, + content=payload + ) + print("✓ Successfully called upload_object with valid folder name") +except Exception as e: + print(f"✗ Unexpected exception: {type(e).__name__}: {e}") diff --git a/StrataTest/Languages/Python/test_1.py b/StrataTest/Languages/Python/tests/test_function_def_calls.py similarity index 100% rename from StrataTest/Languages/Python/test_1.py rename to StrataTest/Languages/Python/tests/test_function_def_calls.py diff --git a/StrataTest/Languages/Python/tests/test_invalid_client_type.py b/StrataTest/Languages/Python/tests/test_invalid_client_type.py new file mode 100644 index 0000000000..64b3a0d2ff --- /dev/null +++ b/StrataTest/Languages/Python/tests/test_invalid_client_type.py @@ -0,0 +1,15 @@ +from typing import List +import test_helper + +print("=== Test 1: Valid service name 'foo' ===") +foo_client = test_helper.create_client('foo', 'config-a') +print("✓ Successfully created foo client\n") + +print("=== Test 2: Invalid service name 'Foo' ===") +try: + invalid_client = test_helper.create_client('Foo', 'config-a') + print("✗ ERROR: Should have raised AssertionError") +except AssertionError as e: + print(f"✓ Caught expected AssertionError: {e}") +except Exception as e: + print(f"✗ Caught unexpected exception: {type(e).__name__}: {e}") diff --git a/StrataTest/Languages/Python/tests/test_precondition_verification.py b/StrataTest/Languages/Python/tests/test_precondition_verification.py new file mode 100644 index 0000000000..f6c4df14b4 --- /dev/null +++ b/StrataTest/Languages/Python/tests/test_precondition_verification.py @@ -0,0 +1,20 @@ +import test_helper + + +def main(): + # Test minimal precondition verification + + # Should succeed + test_helper.procedure("foo") + + # Should succeed + test_helper.procedure("foo", opt_name = "bar") + + # Should error + test_helper.procedure("Foo") + + # Should error + test_helper.procedure("foo", opt_name = "Bar") + +if __name__ == "__main__": + main() \ No newline at end of file diff --git a/StrataTest/Languages/Python/tests/test_unsupported_config.py b/StrataTest/Languages/Python/tests/test_unsupported_config.py new file mode 100644 index 0000000000..b39eff7eaf --- /dev/null +++ b/StrataTest/Languages/Python/tests/test_unsupported_config.py @@ -0,0 +1,25 @@ +import test_helper +import json + +def main(): + # Using config-c which doesn't support AI service + bar_client = test_helper.create_client('bar', 'config-c') + + try: + response: str = test_helper.invoke( + client=bar_client, + arg_str='bar', + input_data=json.dumps({ + 'inputText': 'Hello, world!', + 'config': { + 'myInt': 50, + 'myFloat': 0.7 + } + }) + ) + print("Success:", response) + except Exception as e: + print(f"Error: {e}") + +if __name__ == "__main__": + main() From 7b6a57255a44c91fd6d72604ac77406322ed8016 Mon Sep 17 00:00:00 2001 From: Josh Cohen <36058610+joscoh@users.noreply.github.com> Date: Wed, 3 Dec 2025 17:05:24 -0500 Subject: [PATCH 05/68] Add datatypes to `LContext` (#238) Right now, `TypeFactory` is separate from `LContext` (e.g. in `Lambda.typeCheckAndPartialEval`). This PR bundles them together, simplifying `typeCheckAndPartialEval`, unifying the typechecking for datatypes, and making it possible to add datatypes to Boogie. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Josh Cohen --- Strata/DL/Lambda/LExprTypeEnv.lean | 32 ++++++++++++++++-- Strata/DL/Lambda/Lambda.lean | 12 +++---- Strata/DL/Lambda/TypeFactory.lean | 38 +++++++++++++++++++--- StrataTest/DL/Lambda/TypeFactoryTests.lean | 4 +-- 4 files changed, 71 insertions(+), 15 deletions(-) diff --git a/Strata/DL/Lambda/LExprTypeEnv.lean b/Strata/DL/Lambda/LExprTypeEnv.lean index 20aba12267..d6ee8f505f 100644 --- a/Strata/DL/Lambda/LExprTypeEnv.lean +++ b/Strata/DL/Lambda/LExprTypeEnv.lean @@ -235,16 +235,19 @@ deriving Inhabited /-- Context data that does not change throughout type checking: a factory of user-specified functions and data structures for ensuring unique -names of types and functions +names of types and functions. +Invariant: all functions defined in `TypeFactory.genFactory` +for `datatypes` should be in `functions`. -/ structure LContext (T: LExprParams) where functions : @Factory T + datatypes : @TypeFactory T.IDMeta knownTypes : KnownTypes idents : Identifiers T.IDMeta deriving Inhabited def LContext.empty {IDMeta} : LContext IDMeta := - ⟨#[], {}, {}⟩ + ⟨#[], #[], {}, {}⟩ instance : EmptyCollection (LContext IDMeta) where emptyCollection := LContext.empty @@ -281,6 +284,7 @@ def TEnv.default : TEnv IDMeta := def LContext.default : LContext T := { functions := #[], + datatypes := #[], knownTypes := KnownTypes.default, idents := Identifiers.default } @@ -322,6 +326,30 @@ def LContext.addFactoryFunction (C : LContext T) (fn : LFunc T) : LContext T := def LContext.addFactoryFunctions (C : LContext T) (fact : @Factory T) : LContext T := { C with functions := C.functions.append fact } +/-- +Add a datatype `d` to an `LContext` `C`. +This adds `d` to `C.datatypes`, adds the derived functions +(e.g. eliminators, testers) to `C.functions`, and adds `d` to +`C.knownTypes`. It performs error checking for name clashes. +-/ +def LContext.addDatatype [Inhabited T.IDMeta] [Inhabited T.Metadata] (C: LContext T) (d: LDatatype T.IDMeta) : Except Format (LContext T) := do + -- Ensure not in known types + if C.knownTypes.containsName d.name then + .error f!"Cannot name datatype same as known type!\n\ + {d}\n\ + KnownTypes' names:\n\ + {C.knownTypes.keywords}" + let ds ← C.datatypes.addDatatype d + -- Add factory functions, checking for name clashes + let f ← d.genFactory + let fs ← C.functions.addFactory f + -- Add datatype names to knownTypes + let ks ← C.knownTypes.add d.toKnownType + .ok {C with datatypes := ds, functions := fs, knownTypes := ks} + +def LContext.addTypeFactory [Inhabited T.IDMeta] [Inhabited T.Metadata] (C: LContext T) (f: @TypeFactory T.IDMeta) : Except Format (LContext T) := + Array.foldlM (fun C d => C.addDatatype d) C f + /-- Replace the global substitution in `T.state.subst` with `S`. -/ diff --git a/Strata/DL/Lambda/Lambda.lean b/Strata/DL/Lambda/Lambda.lean index 3821639c75..6485f39bda 100644 --- a/Strata/DL/Lambda/Lambda.lean +++ b/Strata/DL/Lambda/Lambda.lean @@ -42,14 +42,12 @@ def typeCheckAndPartialEval (f : Factory (T:=T) := Factory.default) (e : LExpr T.mono) : Except Std.Format (LExpr T.mono) := do - let fTy ← t.genFactory - let fAll ← Factory.addFactory fTy f - let T := TEnv.default - let C := LContext.default.addFactoryFunctions fAll - let C ← C.addKnownTypes t.toKnownTypes - let (et, _T) ← LExpr.annotate C T e + let E := TEnv.default + let C := LContext.default.addFactoryFunctions f + let C ← C.addTypeFactory t + let (et, _T) ← LExpr.annotate C E e dbg_trace f!"Annotated expression:{Format.line}{et}{Format.line}" - let σ ← (LState.init).addFactory fAll + let σ ← (LState.init).addFactory C.functions return (LExpr.eval σ.config.fuel σ et) end Lambda diff --git a/Strata/DL/Lambda/TypeFactory.lean b/Strata/DL/Lambda/TypeFactory.lean index a3240a5607..374e4fc82f 100644 --- a/Strata/DL/Lambda/TypeFactory.lean +++ b/Strata/DL/Lambda/TypeFactory.lean @@ -40,6 +40,10 @@ structure LConstr (IDMeta : Type) where args : List (Identifier IDMeta × LMonoTy) deriving Repr, DecidableEq +instance: ToFormat (LConstr IDMeta) where + format c := f!"Name:{Format.line}{c.name}{Format.line}\ + Args:{Format.line}{c.args}{Format.line}" + /-- A datatype description. `typeArgs` contains the free type variables of the given datatype. -/ @@ -50,6 +54,11 @@ structure LDatatype (IDMeta : Type) where constrs_ne : constrs.length != 0 deriving Repr, DecidableEq +instance : ToFormat (LDatatype IDMeta) where + format d := f!"Name:{Format.line}{d.name}{Format.line}\ + Type Arguments:{Format.line}{d.typeArgs}{Format.line}\ + Constructors:{Format.line}{d.constrs}{Format.line}" + /-- A datatype applied to arguments -/ @@ -254,21 +263,42 @@ def elimFunc [Inhabited T.IDMeta] [BEq T.Identifier] (d: LDatatype T.IDMeta) (m: def TypeFactory := Array (LDatatype IDMeta) +instance : Inhabited (@TypeFactory IDMeta) where + default := #[] + def TypeFactory.default : @TypeFactory IDMeta := #[] /-- Generates the Factory (containing all constructor and eliminator functions) for a single datatype -/ -def LDatatype.genFactory {T: LExprParams} [Inhabited T.IDMeta] [BEq T.Identifier] (d: LDatatype T.IDMeta) (m: T.Metadata): @Lambda.Factory T := - (elimFunc d m :: d.constrs.map (fun c => constrFunc c d)).toArray +def LDatatype.genFactory {T: LExprParams} [inst: Inhabited T.Metadata] [Inhabited T.IDMeta] [ToFormat T.IDMeta] [BEq T.Identifier] (d: LDatatype T.IDMeta): Except Format (@Lambda.Factory T) := do + _ ← checkStrictPosUnif d + Factory.default.addFactory (elimFunc d inst.default :: d.constrs.map (fun c => constrFunc c d)).toArray /-- Generates the Factory (containing all constructor and eliminator functions) for the given `TypeFactory` -/ def TypeFactory.genFactory {T: LExprParams} [inst: Inhabited T.Metadata] [Inhabited T.IDMeta] [ToFormat T.IDMeta] [BEq T.Identifier] (t: @TypeFactory T.IDMeta) : Except Format (@Lambda.Factory T) := t.foldlM (fun f d => do - _ ← checkStrictPosUnif d - f.addFactory (d.genFactory inst.default)) Factory.default + let f' ← d.genFactory + f.addFactory f') Factory.default + +def TypeFactory.getType (F : @TypeFactory IDMeta) (name : String) : Option (LDatatype IDMeta) := + F.find? (fun d => d.name == name) + +/-- +Add an `LDatatype` to an existing `TypeFactory`, checking that no +types are duplicated. +-/ +def TypeFactory.addDatatype (t: @TypeFactory IDMeta) (d: LDatatype IDMeta) : Except Format (@TypeFactory IDMeta) := + -- Check that type is not redeclared + match t.getType d.name with + | none => .ok (t.push d) + | some d' => .error f!"A datatype of name {d.name} already exists! \ + Redefinitions are not allowed.\n\ + Existing Type: {d'}\n\ + New Type:{d}" + --------------------------------------------------------------------- diff --git a/StrataTest/DL/Lambda/TypeFactoryTests.lean b/StrataTest/DL/Lambda/TypeFactoryTests.lean index ed16511dd6..7232e39d57 100644 --- a/StrataTest/DL/Lambda/TypeFactoryTests.lean +++ b/StrataTest/DL/Lambda/TypeFactoryTests.lean @@ -459,8 +459,8 @@ def badConstr6: LConstr Unit := {name := "Int.Add", args := [⟨"x", .int⟩]} def badTy5 : LDatatype Unit := {name := "Bad", typeArgs := [], constrs := [badConstr6], constrs_ne := rfl} /-- info: A function of name Int.Add already exists! Redefinitions are not allowed. -Existing Function: func Int.Add : ((x : int)) → Bad; -New Function:func Int.Add : ((x : int) (y : int)) → int;-/ +Existing Function: func Int.Add : ((x : int) (y : int)) → int; +New Function:func Int.Add : ((x : int)) → Bad;-/ #guard_msgs in #eval format $ typeCheckAndPartialEval #[badTy5] (IntBoolFactory : @Factory TestParams) (intConst () 0) From 6f9330cb8dcb61876e47536d6a5bc43c19e988ea Mon Sep 17 00:00:00 2001 From: Joe Hendrix Date: Thu, 4 Dec 2025 07:13:11 -0800 Subject: [PATCH 06/68] Update pyTranslate and pyAnalyze to use compile time Python dialect (#259) pyTranslate and pyAnalyze search for the Python dialect using a search path despite being known at compile time. This changes Strata main to use the builtin version. --- Strata/DDM/Ion.lean | 15 +++++++++++++++ StrataMain.lean | 26 +++++++++++++------------- 2 files changed, 28 insertions(+), 13 deletions(-) diff --git a/Strata/DDM/Ion.lean b/Strata/DDM/Ion.lean index 45a9842adc..67e9ff1d68 100644 --- a/Strata/DDM/Ion.lean +++ b/Strata/DDM/Ion.lean @@ -1299,4 +1299,19 @@ def fromIonFragment (f : Ion.Fragment) (dialects : DialectMap) (dialect : Dialec commands := commands } +def fromIon (dialects : DialectMap) (dialect : DialectName) (bytes : ByteArray) : Except String Strata.Program := do + let (hdr, frag) ← + match Strata.Ion.Header.parse bytes with + | .error msg => + throw msg + | .ok p => + pure p + match hdr with + | .dialect _ => + throw "Expected a Strata program instead of a dialect." + | .program name => do + if name != dialect then + throw s!"{name} program found when {dialect} expected." + fromIonFragment frag dialects dialect + end Program diff --git a/StrataMain.lean b/StrataMain.lean index 5ad698aae9..3a8bda76d1 100644 --- a/StrataMain.lean +++ b/StrataMain.lean @@ -160,16 +160,20 @@ def diffCommand : Command where | _, _ => exitFailure "Cannot compare dialect def with another dialect/program." +def readPythonStrata (path : String) : IO Strata.Program := do + let bytes ← Strata.Util.readBinInputSource path + if ! bytes.startsWith Ion.binaryVersionMarker then + exitFailure s!"pyAnalyze expected Ion file" + match Strata.Program.fromIon Strata.Python.Python_map Strata.Python.Python.name bytes with + | .ok p => pure p + | .error msg => exitFailure msg + def pyTranslateCommand : Command where name := "pyTranslate" args := [ "file" ] - help := "Tranlate a Strata Python Ion file to Strata.Boogie. Write results to stdout." - callback := fun searchPath v => do - let (ld, pd) ← readFile searchPath v[0] - match pd with - | .dialect d => - IO.print <| d.format ld.dialects - | .program pgm => + help := "Translate a Strata Python Ion file to Strata.Boogie. Write results to stdout." + callback := fun _ v => do + let pgm ← readPythonStrata v[0] let preludePgm := Strata.Python.Internal.Boogie.prelude let bpgm := Strata.pythonToBoogie pgm let newPgm : Boogie.Program := { decls := preludePgm.decls ++ bpgm.decls } @@ -179,13 +183,9 @@ def pyAnalyzeCommand : Command where name := "pyAnalyze" args := [ "file", "verbose" ] help := "Analyze a Strata Python Ion file. Write results to stdout." - callback := fun searchPath v => do + callback := fun _ v => do let verbose := v[1] == "1" - let (ld, pd) ← readFile searchPath v[0] - match pd with - | .dialect d => - IO.print <| d.format ld.dialects - | .program pgm => + let pgm ← readPythonStrata v[0] if verbose then IO.print pgm let preludePgm := Strata.Python.Internal.Boogie.prelude From 248c22c553ebc1b38c1d8c0a34b2cc2c73c85b01 Mon Sep 17 00:00:00 2001 From: Cody Roux Date: Thu, 4 Dec 2025 17:04:48 -0500 Subject: [PATCH 07/68] feat: Create generators for well-typed LExprs. (#258) *Issue #, if available:* *Description of changes:* Adds a dependency on Plausible, and creates a number of generators which ultimately allow generating random `LExpr`s which are well-typed, labelled with `LMonoTy`s (and random metadata). Some caveats: - An instance of `Arbitrary` will need to be supplied for the metadata types (in our examples we use `Unit` which has a default instance). - The generators were created using Chamelean (https://github.com/codyroux/plausible), when possible and cleaned up a bit by hand. We've removed all the calls to the Chamelean generators, to avoid taking that dependency, but left them in comments, as documentation. - We use a typing relation derived from `LExpr.HasType`, to allow for easier generation, and remove polymorphism for the time being. - We show examples of how to use these generators for conformance tests, but things can be more convenient with additional helper functions. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/DL/Lambda/PlausibleHelpers.lean | 163 ++++ Strata/DL/Lambda/TestGen.lean | 1054 ++++++++++++++++++++++++ lake-manifest.json | 12 +- lakefile.toml | 5 + 4 files changed, 1233 insertions(+), 1 deletion(-) create mode 100644 Strata/DL/Lambda/PlausibleHelpers.lean create mode 100644 Strata/DL/Lambda/TestGen.lean diff --git a/Strata/DL/Lambda/PlausibleHelpers.lean b/Strata/DL/Lambda/PlausibleHelpers.lean new file mode 100644 index 0000000000..037c469f9d --- /dev/null +++ b/Strata/DL/Lambda/PlausibleHelpers.lean @@ -0,0 +1,163 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Plausible.Sampleable +import Plausible.DeriveArbitrary +import Plausible.Attr + +/-! ## Helpers for using Plausible with Chamelean generated instances. + +This entire file may be removed, if a dependency is added on https://github.com/codyroux/plausible (or that fork is merged with upstream) + +-/ + +namespace TestGen + +open Plausible + +class ArbitrarySizedSuchThat (α : Type) (P : α → Prop) where + arbitrarySizedST : Nat → Gen α + +/-- The `DecOpt` class encodes partial decidability: + - It takes a `nat` argument as fuel + - It fails, if it can't decide (e.g. because it runs out of fuel) + - It returns `ok true/false` if it can. + - These are intended to be monotonic, in the + sense that if they ever return `ok b` for + some fuel, they will also do so for higher + fuel values. +-/ +class DecOpt (P : Prop) where + decOpt : Nat → Except GenError Bool + +/-- All `Prop`s that have a `Decidable` instance (this includes `DecidableEq`) + can be automatically given a `DecOpt` instance -/ +instance [Decidable P] : DecOpt P where + decOpt := fun _ => .ok (decide P) + +namespace DecOpt + +/-- `checkerBacktrack` takes a list of (thunked) sub-checkers and returns: + - `ok true` if *any* sub-checker does so + - `ok false` if *all* sub-checkers do so + - `error` otherwise + (see section 2 of "Computing Correctly with Inductive Relations") -/ +def checkerBacktrack (checkers : List (Unit → Except GenError Bool)) : Except GenError Bool := + let rec aux (l : List (Unit → Except GenError Bool)) (b : Bool) : Except GenError Bool := + let err := .genError "DecOpt.checkerBacktrack failure." + match l with + | c :: cs => + match c () with + | .ok true => .ok true + | .ok false => aux cs b + | .error _ => aux cs true + | [] => if b then throw err else .ok false + aux checkers false + +/-- Conjunction lifted to work over `Option Bool` + (corresponds to the `.&&` infix operator in section 2 of "Computing Correctly with Inductive Relations") -/ +def andOpt (a : Except GenError Bool) (b : Except GenError Bool) : Except GenError Bool := + match a with + | .ok true => b + | _ => a + +/-- Folds an optional conjunction operation `andOpt` over a list of `Except _ Bool`s, + returning the resultant `Except _ Bool` -/ +def andOptList (bs : List (Except GenError Bool)) : Except GenError Bool := + List.foldl andOpt (.ok true) bs + +end DecOpt + + +namespace GeneratorCombinators + +/-- `pick default xs n` chooses a weight & a generator `(k, gen)` from the list `xs` such that `n < k`. + If `xs` is empty, the `default` generator with weight 0 is returned. -/ +def pick (default : Gen α) (xs : List (Nat × Gen α)) (n : Nat) : Nat × Gen α := + match xs with + | [] => (0, default) + | (k, x) :: xs => + if n < k then + (k, x) + else + pick default xs (n - k) + + +/-- `pickDrop xs n` returns a weight & its generator `(k, gen)` from the list `xs` + such that `n < k`, and also returns the other elements of the list after `(k, gen)` -/ +def pickDrop (xs : List (Nat × Gen α)) (n : Nat) : Nat × Gen α × List (Nat × Gen α) := + let fail : GenError := .genError "Plausible.Chamelean.GeneratorCombinators: failure." + match xs with + | [] => (0, throw fail, []) + | (k, x) :: xs => + if n < k then + (k, x, xs) + else + let (k', x', xs') := pickDrop xs (n - k) + (k', x', (k, x)::xs') + +/-- Sums all the weights in an association list containing `Nat`s and `α`s -/ +def sumFst (gs : List (Nat × α)) : Nat := List.sum <| List.map Prod.fst gs + +/-- Picks one of the generators in `gs` at random, returning the `default` generator + if `gs` is empty. + + (This is a more ergonomic version of Plausible's `Gen.oneOf` which doesn't + require the caller to supply a proof that the list index is in bounds.) -/ +def oneOfWithDefault (default : Gen α) (gs : List (Gen α)) : Gen α := + match gs with + | [] => default + | _ => do + let idx ← Gen.choose Nat 0 (gs.length - 1) (by omega) + List.getD gs idx.val default + +/-- `frequency` picks a generator from the list `gs` according to the weights in `gs`. + If `gs` is empty, the `default` generator is returned. -/ +def frequency (default : Gen α) (gs : List (Nat × Gen α)) : Gen α := do + let total := sumFst gs + let n ← Gen.choose Nat 0 (total - 1) (by omega) + (pick default gs n).snd + +/-- `sized f` constructs a generator that depends on its `size` parameter -/ +def sized (f : Nat → Gen α) : Gen α := + Gen.getSize >>= f + +/-- Helper function for `backtrack` which picks one out of `total` generators with some initial amount of `fuel` -/ +def backtrackFuel (fuel : Nat) (total : Nat) (gs : List (Nat × Gen α)) : Gen α := + match fuel with + | .zero => throw Gen.outOfFuel + | .succ fuel' => do + let n ← Gen.choose Nat 0 (total - 1) (by omega) + let (k, g, gs') := pickDrop gs n + -- Try to generate a value using `g`, if it fails, backtrack with `fuel'` + -- and pick one out of the `total - k` remaining generators + tryCatch g (fun _ => backtrackFuel fuel' (total - k) gs') + +/-- Tries all generators until one returns a `Some` value or all the generators failed once with `None`. + The generators are picked at random according to their weights (like `frequency` in Haskell QuickCheck), + and each generator is run at most once. -/ +def backtrack (gs : List (Nat × Gen α)) : Gen α := + backtrackFuel (gs.length) (sumFst gs) gs + +/-- Delays the evaluation of a generator by taking in a function `f : Unit → Gen α` -/ +def thunkGen (f : Unit → Gen α) : Gen α := + f () + +/-- `elementsWithDefault` constructs a generator from a list `xs` and a `default` element. + If `xs` is non-empty, the generator picks an element from `xs` uniformly; otherwise it returns the `default` element. + + Remarks: + - this is a version of Plausible's `Gen.elements` where the caller doesn't have + to supply a proof that the list index is in bounds + - This is a version of QuickChick's `elems_` combinator -/ +def elementsWithDefault [Inhabited α] (default : α) (xs : List α) : Gen α := + match xs with + | [] => return default + | _ => do + let i ← Subtype.val <$> Gen.choose Nat 0 (xs.length - 1) (by omega) + return xs[i]! + +end GeneratorCombinators diff --git a/Strata/DL/Lambda/TestGen.lean b/Strata/DL/Lambda/TestGen.lean new file mode 100644 index 0000000000..4e80698a08 --- /dev/null +++ b/Strata/DL/Lambda/TestGen.lean @@ -0,0 +1,1054 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Strata.DL.Lambda.LExpr +import Strata.DL.Lambda.LExprTypeSpec +import Strata.DL.Lambda.LExprTypeEnv +import Strata.DL.Lambda.LExprWF +import Strata.DL.Lambda.LExprT +import Strata.DL.Lambda.LExprEval +import Strata.DL.Lambda.IntBoolFactory +import Plausible.Sampleable +import Plausible.DeriveArbitrary +import Plausible.Attr +import Strata.DL.Lambda.PlausibleHelpers + +-- -- Add these if depending on Chamelean for instance generation. +-- import Plausible.Chamelean.ArbitrarySizedSuchThat +-- import Plausible.Chamelean.DecOpt +-- import Plausible.Chamelean.DeriveConstrainedProducer +-- import Plausible.Chamelean.DeriveChecker + +/-! ## Generators for Well-Typed Lambda expressions -/ + +-- Most of the instance definitions for `ArbitrarySizedSuchThat α P` could be replaced by a call to +-- `deriving_generator (fun ... => ∃ a : α, P)`, or `deriving_checker ...` if we had a dependency on https://github.com/codyroux/plausible +-- We avoid this for now, and simply inline the instance declaration. +-- We leave the relevant calls as comments, in case they need to be re-generated after a change. + +open Plausible + +deriving instance Arbitrary for Lambda.Identifier +deriving instance Arbitrary for Lambda.Info +deriving instance Arbitrary for Lambda.QuantifierKind + +instance instArbitraryRat : Arbitrary Rat where + arbitrary := do + let den ← Gen.chooseNat + let num : Int ← Arbitrary.arbitrary + return num / den + +deriving instance Arbitrary for Lambda.LConst + +-- This doesn't work because of bundled arguments +-- deriving instance Arbitrary for Lambda.LExpr + +def instArbitraryLExpr.arbitrary {T} + [Arbitrary T.base.Metadata] [Arbitrary T.base.IDMeta] [Arbitrary T.TypeType] + : Nat → Plausible.Gen (@Lambda.LExpr T) := + let rec aux_arb (fuel : Nat) : Plausible.Gen (@Lambda.LExpr T) := + (match fuel with + | Nat.zero => + Plausible.Gen.oneOfWithDefault + (do + let a ← Plausible.Arbitrary.arbitrary + let a_1 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.const a a_1) + [(do + let a ← Plausible.Arbitrary.arbitrary + let a_1 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.const a a_1), + (do + let a_2 ← Plausible.Arbitrary.arbitrary + let a_3 ← Plausible.Arbitrary.arbitrary + let a_4 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.op a_2 a_3 a_4), + (do + let a_5 ← Plausible.Arbitrary.arbitrary + let a_6 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.bvar a_5 a_6), + (do + let a_7 ← Plausible.Arbitrary.arbitrary + let a_8 ← Plausible.Arbitrary.arbitrary + -- let a_9 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.fvar a_7 a_8 none)] -- We don't annotate variables, those types will appear in context. + | fuel' + 1 => + Plausible.Gen.frequency + (do + let a ← Plausible.Arbitrary.arbitrary + let a_1 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.const a a_1) + [(1, + (do + let a ← Plausible.Arbitrary.arbitrary + let a_1 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.const a a_1)), + (1, + (do + let a_2 ← Plausible.Arbitrary.arbitrary + let a_3 ← Plausible.Arbitrary.arbitrary + let a_4 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.op a_2 a_3 a_4)), + (1, + (do + let a_5 ← Plausible.Arbitrary.arbitrary + let a_6 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.bvar a_5 a_6)), + (1, + (do + let a_7 ← Plausible.Arbitrary.arbitrary + let a_8 ← Plausible.Arbitrary.arbitrary + let a_9 ← Plausible.Arbitrary.arbitrary + return Lambda.LExpr.fvar a_7 a_8 a_9)), + (fuel' + 1, + (do + let a_10 ← Plausible.Arbitrary.arbitrary + let a_11 ← Plausible.Arbitrary.arbitrary + let a_12 ← aux_arb fuel' + return Lambda.LExpr.abs a_10 a_11 a_12)), + (fuel' + 1, + (do + let a_13 ← Plausible.Arbitrary.arbitrary + let a_14 ← Plausible.Arbitrary.arbitrary + let a_15 ← Plausible.Arbitrary.arbitrary + let a_16 ← aux_arb fuel' + let a_17 ← aux_arb fuel' + return Lambda.LExpr.quant a_13 a_14 a_15 a_16 a_17)), + (fuel' + 1, + (do + let a_18 ← Plausible.Arbitrary.arbitrary + let a_19 ← aux_arb fuel' + let a_20 ← aux_arb fuel' + return Lambda.LExpr.app a_18 a_19 a_20)), + (fuel' + 1, + (do + let a_21 ← Plausible.Arbitrary.arbitrary + let a_22 ← aux_arb fuel' + let a_23 ← aux_arb fuel' + let a_24 ← aux_arb fuel' + return Lambda.LExpr.ite a_21 a_22 a_23 a_24)), + (fuel' + 1, + (do + let a_25 ← Plausible.Arbitrary.arbitrary + let a_26 ← aux_arb fuel' + let a_27 ← aux_arb fuel' + return Lambda.LExpr.eq a_25 a_26 a_27))]) + fun fuel => aux_arb fuel + +instance {T} [Arbitrary T.base.Metadata] [Arbitrary T.base.IDMeta] [Arbitrary T.TypeType] : Plausible.ArbitraryFueled (@Lambda.LExpr T) := ⟨instArbitraryLExpr.arbitrary⟩ + +-- -- Prints a few examples of random expressions. +-- #eval Gen.printSamples (Arbitrary.arbitrary : Gen <| Lambda.LExpr ⟨⟨String, String⟩, String⟩) + +open Lambda +open LTy +open TestGen + +-- We make a bunch of functions inductive predicates to play nice with Chamelean. +inductive MapFind : Map α β → α → β → Prop where +| hd : MapFind ((x, y) :: m) x y +| tl : MapFind m x y → MapFind (p :: m) x y + +inductive MapsFind : Maps α β → α → β → Prop where +| hd : MapFind m x y → MapsFind (m :: ms) x y +| tl : MapsFind ms x y → MapsFind (m :: ms) x y + +-- Sadly, we need these versions as well for the time being, because +-- we can only generate one output at a time for a given inductive constraint. +-- Here we want to produce both the key and the value at once. +inductive MapFind₂ {α β : Type} : Map α β → α × β → Prop where +| hd : MapFind₂ ((x, y) :: m) (x, y) +| tl : MapFind₂ m q → MapFind₂ (p :: m) q + +inductive MapsFind₂ : Maps α β → α × β → Prop where +| hd : MapFind₂ m (x, y) → MapsFind₂ (m :: ms) (x, y) +| tl : MapsFind₂ ms (x, y) → MapsFind₂ (m :: ms) (x, y) + +inductive MapReplace : Map α β → α → β → Map α β → Prop where +| nil : MapReplace [] x y [] +| consFound : MapReplace ((x, z)::m) x y ((x, y)::m) +| consNotFound : x ≠ z → MapReplace m x y m' → MapReplace ((z, w) :: m) x y ((z, w) :: m') + +inductive MapsReplace : Maps α β → α → β → Maps α β → Prop where +| nil : MapsReplace [] x y [] +-- We do redundant work here but it's ok +| cons : MapReplace m x y m' → MapsReplace ms x y ms' → MapsReplace (m::ms) x y (m'::ms') + +inductive MapNotFound : Map α β → α → Prop where +| nil : MapNotFound [] x +| cons : x ≠ z → MapNotFound m x → MapNotFound ((z, w) :: m) x + +inductive MapsNotFound : Maps α β → α → Prop where +| nil : MapsNotFound [] x +| cons : MapNotFound m x → MapsNotFound ms x → MapsNotFound (m::ms) x + +-- We tediously do what the functional implementation does but allowing shadowing would probably be ok +inductive MapsInsert : Maps α β → α → β → Maps α β → Prop where +| found : MapsFind ms x z → MapsReplace ms x y ms' → MapsInsert ms x y ms' +| notFound : MapsNotFound (m::ms) x → MapsInsert (m::ms) x y (((x,y)::m)::ms) +| empty : MapsInsert [] x y [[(x, y)]] + +-- -- We hand write this to avoid guessing and checking for strings. +instance instStringSuchThatIsInt : ArbitrarySizedSuchThat String (fun s => s.isInt) where + arbitrarySizedST _ := toString <$> (Arbitrary.arbitrary : Gen Int) + +#guard_msgs(drop info) in +#eval + let P : String → Prop := fun s => s.isInt + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +-- FIXME: remove this +def ArrayFind (a : Array α) (x : α) := x ∈ a + +instance instArrayFindSuchThat {α} {a} : ArbitrarySizedSuchThat α (fun x => ArrayFind a x) where + arbitrarySizedST _ := do + if h:a.size = 0 then throw <| GenError.genError "Gen: cannot generate elements of empty array" else + let i ← Gen.chooseNatLt 0 a.size (by omega) + return a[i.val] + + +-- Compare `LExpr.HasType` in `LExprTypeSpec.lean` + +-- We massage the `HasType` definition to be more amenable to generation. The main differences are that +-- polymorphism is not supported, and we tend to move function applications in the "output" position to the conclusion. +-- This avoids an additional costly check in the hypothesis. +inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C: LContext T) : (TContext T.IDMeta) → LExpr T.mono → LTy → Prop where + | tbool_const : ∀ Γ m b, + HasType C Γ (.boolConst m b) (.forAll [] .bool) + | tint_const : ∀ Γ m n, + HasType C Γ (.intConst m n) (.forAll [] .int) + | treal_const : ∀ Γ m r, + HasType C Γ (.realConst m r) (.forAll [] .real) + | tstr_const : ∀ Γ m s, + HasType C Γ (.strConst m s) (.forAll [] .string) + | tbitvec_const : ∀ Γ m n b, + HasType C Γ (.bitvecConst m n b) (.forAll [] (.bitvec n)) + + | tvar : ∀ Γ m x ty, MapsFind Γ.types x ty → HasType C Γ (.fvar m x none) ty + + | tabs : ∀ Γ Γ' m x x_ty e e_ty, + MapsInsert Γ.types x (.forAll [] x_ty : LTy) Γ' → + HasType C { Γ with types := Γ'} e (.forAll [] e_ty) → + HasType C Γ (.abs m .none <| LExpr.varClose 0 (x, none) e) -- We close in the conclusion rather than opening in the hyps. + (.forAll [] (.tcons "arrow" [x_ty, e_ty])) + + | tapp : ∀ Γ m e1 e2 t1 t2, + (h1 : LTy.isMonoType t1) → + (h2 : LTy.isMonoType t2) → + HasType C Γ e1 (.forAll [] (.tcons "arrow" [(LTy.toMonoType t2 h2), + (LTy.toMonoType t1 h1)])) → + HasType C Γ e2 t2 → + HasType C Γ (.app m e1 e2) t1 + + | tif : ∀ Γ m c e1 e2 ty, + HasType C Γ c (.forAll [] .bool) → + HasType C Γ e1 ty → + HasType C Γ e2 ty → + HasType C Γ (.ite m c e1 e2) ty + + | teq : ∀ Γ m e1 e2 ty, + HasType C Γ e1 ty → + HasType C Γ e2 ty → + HasType C Γ (.eq m e1 e2) (.forAll [] .bool) + + | top: ∀ Γ m f ty, + ArrayFind C.functions f → + HasType C Γ (.op m f.name none) ty + + -- -- We only generate monomorphic types for now + +-- -- We hand write this for more readable type names +instance : Arbitrary TyIdentifier where + arbitrary := Gen.oneOf #[return "A", return "B", return "C", return "D"] + + +-- -- We hand write this instance to control the base type names. +instance : Arbitrary LMonoTy where + arbitrary := + let rec aux (n : Nat) : Gen LMonoTy := + match n with + | 0 => Gen.oneOf #[return .tcons "int" [], return .tcons "bool" []] + | n'+1 => do + let choice ← Gen.chooseNatLt 0 3 (by simp) + if ↑choice = 0 then + Gen.oneOf #[return .tcons "int" [], return .tcons "bool" []] + else if ↑choice = 1 then + let ty1 ← aux n' + let ty2 ← aux n' + return .tcons "arrow" [ty1, ty2] + else + let n ← Gen.chooseNatLt 0 4 (by simp) -- Keep things bounded + return .bitvec n + do + let ⟨size⟩ ← read + aux size + +instance : Arbitrary LTy where + arbitrary := LTy.forAll [] <$> Arbitrary.arbitrary + +-- #eval Gen.printSamples (Arbitrary.arbitrary : Gen LMonoTy) + +-- -- This works +-- derive_generator fun α β m y => ∃ x, @MapFind α β m x y + +instance {α β m_1 y_1_1} [BEq β] : ArbitrarySizedSuchThat α (fun x_1_1 => @MapFind α β m_1 x_1_1 y_1_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (α_1 : Type) (β_1 : Type) (m_1 : Map α β) (y_1_1 : β) : + Plausible.Gen α := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match m_1 with + | List.cons (Prod.mk x y) _m => + match DecOpt.decOpt (BEq.beq y y_1_1) initSize with + | Except.ok Bool.true => return x + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ size' => + GeneratorCombinators.backtrack + [(1, + match m_1 with + | List.cons (Prod.mk x y) _m => + match DecOpt.decOpt (BEq.beq y y_1_1) initSize with + | Except.ok Bool.true => return x + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', + match m_1 with + | List.cons _p m => do + let (x_1_1 : α) ← aux_arb initSize size α_1 β_1 m y_1_1 + return x_1_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure)]) + fun size => aux_arb size size α β m_1 y_1_1 + +/-- info: 2 -/ +#guard_msgs(info) in +#eval + let P : Nat → Prop := fun n : Nat => MapFind [((2 : Nat), "foo")] n "foo" + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +-- -- This works +-- derive_generator fun α β tys y => ∃ x, @MapsFind α β tys x y + +instance [DecidableEq β] : ArbitrarySizedSuchThat α (fun x_1 => @MapsFind α β tys_1 x_1 y_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (α : Type) (β : Type) [DecidableEq β] (tys_1 : Maps α β) (y_1 : β) : + Plausible.Gen α := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match tys_1 with + | List.cons m _ms => do + let (x_1 : α) ← ArbitrarySizedSuchThat.arbitrarySizedST (fun (x_1 : α) => @MapFind α β m x_1 y_1) initSize; + return x_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ size' => + GeneratorCombinators.backtrack + [(1, + match tys_1 with + | List.cons m _ms => do + let (x_1 : α) ← ArbitrarySizedSuchThat.arbitrarySizedST (fun (x_1 : α) => MapFind m x_1 y_1) initSize; + return x_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', + match tys_1 with + | List.cons _m ms => do + let (x_1 : α) ← aux_arb initSize size α β ms y_1 -- Chamelean doesn't do the right thing here: it should call itself recursively! + return x_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure)]) + fun size => aux_arb size size α β tys_1 y_1 + +/-- info: 2 -/ +#guard_msgs(info) in +#eval + let P : Nat → Prop := fun n : Nat => MapsFind [[((2 : Nat), "foo")]] n "foo" + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +-- -- This works +-- derive_generator fun α β m x_1 => ∃ y_1, @MapFind α β m x_1 y_1 +instance [DecidableEq α] : ArbitrarySizedSuchThat β (fun y_1_1 => @MapFind α β m_1 x_1_1 y_1_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (α : Type) (β : Type) [DecidableEq α] (m_1 : Map α β) (x_1_1 : α) : + Plausible.Gen β := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match m_1 with + | List.cons (Prod.mk x y) _m => + match DecOpt.decOpt (BEq.beq x x_1_1) initSize with + | Except.ok Bool.true => return y + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ size' => + GeneratorCombinators.backtrack + [(1, + match m_1 with + | List.cons (Prod.mk x y) _m => + match DecOpt.decOpt (BEq.beq x x_1_1) initSize with + | Except.ok Bool.true => return y + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', + match m_1 with + | List.cons _p m => do + let (y_1_1 : β) ← aux_arb initSize size' α β m x_1_1 + return y_1_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure)]) + fun size => aux_arb size size α β m_1 x_1_1 + +/-- info: "foo" -/ +#guard_msgs(info) in +#eval + let P : String → Prop := fun s : String => MapFind [((2 : Nat), "foo")] 2 s + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +/-- Creates a fresh identifier from a list -/ +def getFreshIdent (pre : String) (l : List TyIdentifier) : TyIdentifier := +if pre ∉ l then pre else +getFreshIdentSuffix l.length l +where + getFreshIdentSuffix n l := + match n with + | 0 => pre ++ "0" + | n'+1 => + let ty := pre ++ (toString (l.length - n)) + if ty ∉ l then ty + else getFreshIdentSuffix n' l + +-- -- We hand write this as well. We might be able to derive a reasonable version if we had an inductive relation, by guessing and checking. +instance instArbitrarySizedSuchThatFresh {T : LExprParams} [DecidableEq T.IDMeta] {ctx : TContext T.IDMeta} + : ArbitrarySizedSuchThat TyIdentifier + (fun a => TContext.isFresh a ctx) where + arbitrarySizedST _ := do + let allTypes := ctx.types.flatten.map Prod.snd + let allTyVars := allTypes.map LTy.freeVars |>.flatten + let pre ← Arbitrary.arbitrary + return getFreshIdent pre allTyVars + +-- Parameters for terms without metadata +abbrev trivialParams : LExprParams := ⟨Unit, Unit⟩ + +#guard_msgs(drop info) in +#eval + let ty := .forAll [] (LMonoTy.bool) + let ctx : TContext trivialParams.IDMeta := ⟨[[(⟨"foo", ()⟩, ty)]], []⟩ + let P : TyIdentifier → Prop := fun s : String => TContext.isFresh s ctx + Gen.runUntil .none (@ArbitrarySizedSuchThat.arbitrarySizedST _ P (@instArbitrarySizedSuchThatFresh _ _ ctx) 10) 10 + +-- -- This works +-- derive_checker fun α β m x => @MapNotFound α β m x +instance [DecidableEq α_1] : DecOpt (@MapNotFound α_1 β_1 m_1 x_1) where + decOpt := + let rec aux_dec (initSize : Nat) (size : Nat) (α : Type) (β : Type) [DecidableEq α] (m_1 : Map α β) (x_1 : α) : + Except Plausible.GenError Bool := + (match size with + | Nat.zero => + DecOpt.checkerBacktrack + [fun (_ : Unit) => + match m_1 with + | List.nil => Except.ok Bool.true + | _ => Except.ok Bool.false] + | Nat.succ size' => + DecOpt.checkerBacktrack + [fun (_ : Unit) => + match m_1 with + | List.nil => Except.ok Bool.true + | _ => Except.ok Bool.false, + fun (_ : Unit) => + match m_1 with + | List.cons (Prod.mk z _w) m => + DecOpt.andOptList [aux_dec initSize size' α β m x_1, DecOpt.decOpt (Ne x_1 z) initSize] + | _ => Except.ok Bool.false]) + fun size => aux_dec size size α_1 β_1 m_1 x_1 + +/-- info: false -/ +#guard_msgs(info) in +#eval DecOpt.decOpt (MapNotFound [("foo", 4)] "foo") 5 +/-- info: true -/ +#guard_msgs(info) in +#eval DecOpt.decOpt (MapNotFound [("foo", 4)] "bar") 5 + +-- -- This works +-- derive_generator fun α β m x_1_1 ty_1_1 => ∃ m', @MapReplace α β m x_1_1 ty_1_1 m' +instance [DecidableEq α] : ArbitrarySizedSuchThat (Map α β) (fun m'_1 => @MapReplace α β m_1 x_1_1_1 ty_1_1_1 m'_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (α : Type) (β : Type) [DecidableEq α] (m_1 : Map α β) (x_1_1_1 : α) + (ty_1_1_1 : β) : Plausible.Gen (Map α β) := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match m_1 with + | List.nil => return List.nil + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match m_1 with + | List.cons (Prod.mk x _z) m => + match DecOpt.decOpt (BEq.beq x x_1_1_1) initSize with + | Except.ok Bool.true => return List.cons (Prod.mk x_1_1_1 ty_1_1_1) m + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ size' => + GeneratorCombinators.backtrack + [(1, + match m_1 with + | List.nil => return List.nil + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match m_1 with + | List.cons (Prod.mk x _z) m => + match DecOpt.decOpt (BEq.beq x x_1_1_1) initSize with + | Except.ok Bool.true => return List.cons (Prod.mk x_1_1_1 ty_1_1_1) m + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', + match m_1 with + | List.cons (Prod.mk z w) m => + match DecOpt.decOpt (Ne x_1_1_1 z) initSize with + | Except.ok Bool.true => do + let (m' : Map α β) ← aux_arb initSize size' α β m x_1_1_1 ty_1_1_1 + return List.cons (Prod.mk z w) m' + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure)]) + fun size => aux_arb size size α β m_1 x_1_1_1 ty_1_1_1 + +/-- info: [(2, "new")] -/ +#guard_msgs(info) in +#eval + let P : Map Nat String → Prop := fun m' => MapReplace [((2 : Nat), "old")] 2 "new" m' + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +-- -- This works +-- derive_checker fun α β m x => @MapsNotFound α β m x + +instance [DecidableEq α_1] : DecOpt (@MapsNotFound α_1 β_1 m_1 x_1) where + decOpt := + let rec aux_dec (initSize : Nat) (size : Nat) (α : Type) (β : Type) [DecidableEq α] (m_1 : Maps α β) (x_1 : α) : + Except Plausible.GenError Bool := + (match size with + | Nat.zero => + DecOpt.checkerBacktrack + [fun (_ : Unit) => + match m_1 with + | List.nil => Except.ok Bool.true + | _ => Except.ok Bool.false] + | Nat.succ size' => + DecOpt.checkerBacktrack + [fun (_ : Unit) => + match m_1 with + | List.nil => Except.ok Bool.true + | _ => Except.ok Bool.false, + fun (_ : Unit) => + match m_1 with + | List.cons m ms => + DecOpt.andOptList [aux_dec initSize size' α β ms x_1, DecOpt.decOpt (MapNotFound m x_1) initSize] + | _ => Except.ok Bool.false]) + fun size => aux_dec size size α_1 β_1 m_1 x_1 + +/-- info: false -/ +#guard_msgs(info) in +#eval DecOpt.decOpt (MapsNotFound [[("foo", 4)]] "foo") 5 +/-- info: true -/ +#guard_msgs(info) in +#eval DecOpt.decOpt (MapsNotFound [[("foo", 4)]] "bar") 5 + +-- -- This works +-- derive_generator fun α β tys_1 x_1 ty_1 => ∃ (Γ_1 : Maps α β), @MapsReplace α β tys_1 x_1 ty_1 Γ_1 +instance [DecidableEq α] : ArbitrarySizedSuchThat (Maps α β) (fun Γ_1_1 => @MapsReplace α β tys_1_1 x_1_1 ty_1_1 Γ_1_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (α : Type) (β : Type) [DecidableEq α] (tys_1_1 : Maps α β) (x_1_1 : α) + (ty_1_1 : β) : Plausible.Gen (Maps α β) := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match tys_1_1 with + | List.nil => return List.nil + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ size' => + GeneratorCombinators.backtrack + [(1, + match tys_1_1 with + | List.nil => return List.nil + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', + match tys_1_1 with + | List.cons m ms => do + let (m' : Map α β) ← + ArbitrarySizedSuchThat.arbitrarySizedST (fun (m' : Map α β) => @MapReplace α β m x_1_1 ty_1_1 m') initSize; + do + let (ms' : Maps α β) ← + aux_arb initSize size α β ms x_1_1 ty_1_1 + return List.cons m' ms' + | _ => MonadExcept.throw Plausible.Gen.genericFailure)]) + fun size => aux_arb size size α β tys_1_1 x_1_1 ty_1_1 + +/-- info: [[(2, "new")]] -/ +#guard_msgs(info) in +#eval + let P : Maps Nat String → Prop := fun m' => MapsReplace [[((2 : Nat), "old")]] 2 "new" m' + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +-- -- This works +-- derive_generator (fun α β tys_1 x_1 => ∃ (z : β), @MapsFind α β tys_1 x_1 z) +instance [DecidableEq α][DecidableEq β] : ArbitrarySizedSuchThat β (fun z_1 => @MapsFind α β tys_1_1 x_1_1 z_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (α : Type) (β : Type) [DecidableEq α] [DecidableEq β] (tys_1_1 : Maps α β) (x_1_1 : α) : + Plausible.Gen β := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match tys_1_1 with + | List.cons m _ms => do + let (z_1 : β) ← ArbitrarySizedSuchThat.arbitrarySizedST (fun (z_1 : β) => MapFind m x_1_1 z_1) initSize; + return z_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ size' => + GeneratorCombinators.backtrack + [(1, + match tys_1_1 with + | List.cons m _ms => do + let (z_1 : β) ← ArbitrarySizedSuchThat.arbitrarySizedST (fun (z_1 : β) => MapFind m x_1_1 z_1) initSize; + return z_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', + match tys_1_1 with + | List.cons _m ms => do + let (z_1 : β) ← aux_arb initSize size' α β ms x_1_1 + return z_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure)]) + fun size => aux_arb size size α β tys_1_1 x_1_1 + +/-- info: "old" -/ +#guard_msgs(info) in +#eval + let P : _ → Prop := fun z => MapsFind [[((2 : Nat), "old")]] 2 z + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +-- -- This works +-- derive_generator (fun α β tys x ty => ∃ Γ, @MapsInsert α β tys x ty Γ) + +instance [DecidableEq α] [DecidableEq β] : ArbitrarySizedSuchThat (Maps α β) (fun Γ_1 => @MapsInsert α β tys_1 x_1 ty_1 Γ_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (tys_1 : Maps α β) (x_1 : α) + (ty_1 : β) : Plausible.Gen (Maps α β) := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, do + let (_ : β) ← ArbitrarySizedSuchThat.arbitrarySizedST (fun z_1 => @MapsFind α β tys_1 x_1 z_1) initSize; + let (Γ_1 : Maps α β) ← + ArbitrarySizedSuchThat.arbitrarySizedST (fun (Γ_1 : Maps α β) => MapsReplace tys_1 x_1 ty_1 Γ_1) + initSize; + return Γ_1), + (1, + match tys_1 with + | List.cons m ms => + match DecOpt.decOpt (MapsNotFound (List.cons m ms) x_1) initSize with + | Except.ok Bool.true => return List.cons (List.cons (Prod.mk x_1 ty_1) m) ms + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ _size' => + GeneratorCombinators.backtrack + [(1, do + let (_ : β) ← ArbitrarySizedSuchThat.arbitrarySizedST (fun z_1 => @MapsFind α β tys_1 x_1 z_1) initSize; + let (Γ_1 : Maps α β) ← + ArbitrarySizedSuchThat.arbitrarySizedST (fun (Γ_1 : Maps α β) => MapsReplace tys_1 x_1 ty_1 Γ_1) + initSize; + return Γ_1), + (1, + match tys_1 with + | List.cons m ms => + match DecOpt.decOpt (MapsNotFound (List.cons m ms) x_1) initSize with + | Except.ok Bool.true => return List.cons (List.cons (Prod.mk x_1 ty_1) m) ms + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + ]) + fun size => aux_arb size size tys_1 x_1 ty_1 + + +-- -- This works! +-- derive_generator fun (α β : Type) Γ => ∃ (p : α × β), @MapFind₂ α β Γ p + +instance [Plausible.Arbitrary α_1] [DecidableEq α_1] [Plausible.Arbitrary β_1] [DecidableEq β_1] : + ArbitrarySizedSuchThat (α_1 × β_1) (fun p_1 => @MapFind₂ α_1 β_1 Γ_1 p_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (α_1 : Sort _) (β_1 : Sort _) (Γ_1 : Map α_1 β_1) + [Plausible.Arbitrary α_1] [DecidableEq α_1] [Plausible.Arbitrary β_1] [DecidableEq β_1] : + Plausible.Gen (α_1 × β_1) := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match Γ_1 with + | List.cons (Prod.mk x y) _m => return Prod.mk x y + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ size' => + GeneratorCombinators.backtrack + [(1, + match Γ_1 with + | List.cons (Prod.mk x y) _m => return Prod.mk x y + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', + match Γ_1 with + | List.cons _p m => do + let (p_1 : Prod α_1 β_1) ← aux_arb initSize size' α_1 β_1 m; + return p_1 + | _ => MonadExcept.throw Plausible.Gen.genericFailure)]) + fun size => aux_arb size size α_1 β_1 Γ_1 + + +-- -- This does not work for silly reasons, a minor bug in matching on types with a single constructor. +-- derive_generator fun (α β : Type) Γ => ∃ (p : α × β), @MapsFind₂ α β Γ p + + +instance [Plausible.Arbitrary α_1] [DecidableEq α_1] [Plausible.Arbitrary β_1] [DecidableEq β_1] : + ArbitrarySizedSuchThat (α_1 × β_1) (fun p_1 => @MapsFind₂ α_1 β_1 Γ_1 p_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (α_1 : Sort _) (β_1 : Sort _) (Γ_1 : Maps α_1 β_1) + [Plausible.Arbitrary α_1] [DecidableEq α_1] [Plausible.Arbitrary β_1] [DecidableEq β_1] : + Plausible.Gen (α_1 × β_1) := + match size with + | 0 => + match Γ_1 with + | m :: _ => ArbitrarySizedSuchThat.arbitrarySizedST (fun p => MapFind₂ m p) initSize + | _ => throw Plausible.Gen.genericFailure + | size' + 1 => -- Slight hand optimization here, where we can match on Γ_1 directly + match Γ_1 with + | m :: ms => GeneratorCombinators.backtrack + [ + (1, ArbitrarySizedSuchThat.arbitrarySizedST (fun p => MapFind₂ m p) initSize), + (1, aux_arb initSize size' α_1 β_1 ms) + ] + | _ => throw Plausible.Gen.genericFailure + fun size => aux_arb size size α_1 β_1 Γ_1 + +/-- info: [[(2, "new")]] -/ +#guard_msgs(info) in +#eval + let P : Maps Nat String → Prop := fun m' => MapsInsert [[((2 : Nat), "old")]] 2 "new" m' + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +/-- info: [[], [(2, "new")]] -/ +#guard_msgs(info) in +#eval + let P : Maps Nat String → Prop := fun m' => MapsInsert [[], [((2 : Nat), "old")]] 2 "new" m' + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +/-- info: [[(2, "new")], [(3, "old")]] -/ +#guard_msgs(info) in +#eval + let P : Maps Nat String → Prop := fun m' => MapsInsert [[], [((3 : Nat), "old")]] 2 "new" m' + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +/-- info: (3, "old") -/ +#guard_msgs(info) in +#eval + let P : _ → Prop := fun m => MapsFind₂ [[], [((3 : Nat), "old")]] m + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +/-- error: Generation failure:Gen.runUtil: Out of attempts +-/ +#guard_msgs(error) in +#eval + let P : String × Nat → Prop := fun m => MapsFind₂ [[], []] m + Gen.runUntil (.some 10) (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +-- We don't quite handle this case yet, if `α` is a type variable. +-- Monomorphising `α` and removing the `DecidableEq` constraint gives us an almost perfect generator! + +-- derive_generator (fun α eqdec fact ctx ty => ∃ t, @HasType α eqdec fact ctx t ty) + + +-- For now though, we hand write a specialized version, without certain constants and without polymorphism. +instance {T : LExprParams} + {fact_1 : LContext T} + {ctx_1 : TContext T.IDMeta} + [Arbitrary T.mono.base.Metadata] + [Arbitrary T.IDMeta] + [DecidableEq T.IDMeta] : ArbitrarySizedSuchThat (LExpr T.mono) (fun t_1 => HasType fact_1 ctx_1 t_1 ty_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (ctx_1 : TContext T.IDMeta) (ty_1 : LTy) : + Plausible.Gen (LExpr T.mono) := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .bool => do + let m ← Arbitrary.arbitrary + return .boolConst m true + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .bool => do + let m ← Arbitrary.arbitrary + return .boolConst m false + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .int => do + let m ← Arbitrary.arbitrary + let n ← Arbitrary.arbitrary + return .intConst m n + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, do + let (x : Identifier _ × LTy) ← + ArbitrarySizedSuchThat.arbitrarySizedST + (fun x => MapsFind₂ (Lambda.TContext.types ctx_1) x) initSize; + if x.snd = ty_1 then do + let m ← Arbitrary.arbitrary + return Lambda.LExpr.fvar m x.fst none + else + throw Gen.genericFailure + ) + ] + | Nat.succ size' => + GeneratorCombinators.backtrack + [ + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .bool => do + let m ← Arbitrary.arbitrary + return .boolConst m true + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .bool => do + let m ← Arbitrary.arbitrary + return .boolConst m false + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .int => do + let m ← Arbitrary.arbitrary + let n ← Arbitrary.arbitrary + return .intConst m n + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (size', do + let m ← Arbitrary.arbitrary + let (x : Identifier _ × LTy) ← + ArbitrarySizedSuchThat.arbitrarySizedST + (fun x_x_ty => MapsFind₂ (Lambda.TContext.types ctx_1) x_x_ty) initSize; + if x.snd = ty_1 then + return Lambda.LExpr.fvar m x.fst none + else + throw Gen.genericFailure), + (Nat.succ size', + match ty_1 with + | + Lambda.LTy.forAll (List.nil) + (Lambda.LMonoTy.tcons "arrow" + (List.cons (x_ty) + (List.cons (e_ty) (List.nil)))) => do + let m ← Arbitrary.arbitrary + let x : Identifier _ ← Arbitrary.arbitrary + let x_ty' := LTy.forAll [] x_ty + let e_ty' := LTy.forAll [] e_ty + let Γ' : Maps (Identifier _) LTy ← + ArbitrarySizedSuchThat.arbitrarySizedST + (fun (Γ' : Maps (Identifier T.IDMeta) LTy) => + MapsInsert (Lambda.TContext.types ctx_1) x x_ty' Γ') initSize; + let e ← aux_arb initSize size' {ctx_1 with types := Γ'} e_ty' + let e := LExpr.varClose 0 (x, none) e + return .abs m x_ty e + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', do + let (t2 : LMonoTy) ← Plausible.Arbitrary.arbitrary; + do + let (e2 : LExpr _) ← aux_arb initSize size' ctx_1 (.forAll [] t2); + do + if h1 : isMonoType ty_1 then + let (e1 : LExpr _) ← + aux_arb initSize size' ctx_1 + (Lambda.LTy.forAll (List.nil) + (Lambda.LMonoTy.tcons "arrow" + (List.cons (t2) + (List.cons (Lambda.LTy.toMonoType ty_1 h1) (List.nil))))); + + let m ← Arbitrary.arbitrary + return Lambda.LExpr.app m e1 e2 + else MonadExcept.throw Plausible.Gen.genericFailure), + (Nat.succ size', do + let (c : LExpr _) ← + aux_arb initSize size' ctx_1 (Lambda.LTy.forAll (List.nil) (Lambda.LMonoTy.tcons "bool" (List.nil))); + do + let (e1 : LExpr _) ← aux_arb initSize size' ctx_1 ty_1; + do + let (e2 : LExpr _) ← aux_arb initSize size' ctx_1 ty_1; + let m ← Arbitrary.arbitrary + return Lambda.LExpr.ite m c e1 e2), + (Nat.succ size', + match ty_1 with + | Lambda.LTy.forAll (List.nil) (Lambda.LMonoTy.tcons "bool" (List.nil)) => do + let (ty : LTy) ← Plausible.Arbitrary.arbitrary; + do + let (e1 : LExpr _) ← aux_arb initSize size' ctx_1 ty; + do + let (e2 : LExpr _) ← aux_arb initSize size' ctx_1 ty; + let m ← Arbitrary.arbitrary + return Lambda.LExpr.eq m e1 e2 + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (10, do + let (f : LFunc _) ← + @ArbitrarySizedSuchThat.arbitrarySizedST _ + (fun (f : LFunc _) => + @ArrayFind (@Lambda.LFunc _) (@Lambda.LContext.functions _ fact_1) f) + _ initSize; + do + match f.type with + | .ok f_ty => + if f_ty = ty_1 then do + let m ← Arbitrary.arbitrary + return Lambda.LExpr.op m f.name (Option.none) + else throw Plausible.Gen.genericFailure + | _ => throw Plausible.Gen.genericFailure + ) + ]) + fun size => aux_arb size size ctx_1 ty_1 + + +#guard_msgs(drop info) in +#eval Gen.printSamples (Arbitrary.arbitrary : Gen LMonoTy) + +abbrev example_lctx : LContext trivialParams := +{ LContext.empty with knownTypes := KnownTypes.default + functions := Lambda.IntBoolFactory +} + +abbrev example_ctx : TContext Unit := ⟨[[]], []⟩ +-- abbrev example_ty : LTy := .forAll [] <| .tcons "bool" [] +abbrev example_ty : LTy := .forAll [] <| .tcons "arrow" [.tcons "bool" [], .tcons "bool" []] + +-- FIXME +/-- info: [[({ name := "y", metadata := () }, Lambda.LTy.forAll [] (Lambda.LMonoTy.tcons "int" []))]] -/ +#guard_msgs(info) in +#eval + let P : Maps (Identifier Unit) LTy → Prop := fun Γ => MapsInsert (example_ctx.types) "y" (.forAll [] (.tcons "int" [])) Γ + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 + + +#guard_msgs(drop info) in +#time #eval + let P : LExpr trivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty + Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 4) 4 +def example_lstate := + { LState.init (T := trivialParams) with config := + { LState.init.config (T := trivialParams) with + factory := Lambda.IntBoolFactory (T := trivialParams)} + } + +/-- `Monad` instance for List. + Note that: + - The Lean standard library does not have a Monad instance for List (see https://leanprover-community.github.io/archive/stream/270676-lean4/topic/Option.20do.20notation.20regression.3F.html#231433226) + - MathLib4 does have a Monad instance for List, but we wish to avoid having Chamelean rely on Mathlib + as a dependency, so we reproduce instance here instead. -/ +private instance : Monad List where + pure x := [x] + bind xs f := xs.flatMap f + +instance [Inhabited T.base.IDMeta] : Shrinkable (LExpr T) where + shrink t := + let rec aux (t : LExpr T) : List (LExpr T) := + match t with + | .fvar _ _ _ + | .bvar _ _ + | .op _ _ _ + | .const _ _ -- We're being a bit lazy here for the time being + => [] + | .app m t u => + t :: u :: (.app m <$> aux t <*> aux u) + | .abs m ty t => (LExpr.varOpen 0 ⟨⟨"x", default⟩, ty⟩ t) :: (.abs m ty <$> aux t) -- IDK about the `"x"` + | .eq m t u => t :: u :: (.eq m <$> aux t <*> aux u) + | .ite m cond t u => cond :: t :: u :: (.ite m <$> aux cond <*> aux t <*> aux u) + | .quant m k ty tr t => (LExpr.varOpen 0 ⟨⟨"x", default⟩, ty⟩ t) :: (.quant m k ty tr <$> aux t) + aux t + +-- Shrinks an element of `α` recursively. +partial def shrinkFunAux [Shrinkable α] (f : α → Bool) (x : α) : Option α := do + let candidates := Shrinkable.shrink x + let y ← candidates.find? f + let z := shrinkFunAux f y + z <|> some y + +def shrinkFun [Shrinkable α] (f : α → Bool) (x : α) : α := +let shrinked := shrinkFunAux f x +match shrinked with +| .some y => y +| .none => x + +/-- info: [LExpr.fvar () { name := "x", metadata := () } none, LExpr.fvar () { name := "y", metadata := () } none] -/ +#guard_msgs(info) in +#eval Shrinkable.shrink (LExpr.eq (T := trivialParams.mono) () (.fvar () "x" .none) (.fvar () "y" .none)) + +/-- info: 2 -/ +#guard_msgs(info) in +#eval shrinkFun (fun n : Nat => n % 3 == 2) 42 + +def annotate (t : LExpr trivialParams.mono) := + let state : TState := {} + let env : TEnv Unit := { genEnv := ⟨example_ctx, state⟩ } + LExpr.annotate example_lctx env t + +def canAnnotate (t : LExpr trivialParams.mono) : Bool := + (annotate t).isOk + + +-- #eval do +-- let P : LExpr trivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty +-- let t ← Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 +-- IO.println s!"Generated {t}" + + +/-- info: Generating terms of type +Lambda.LTy.forAll [] (Lambda.LMonoTy.tcons "arrow" [Lambda.LMonoTy.tcons "bool" [], Lambda.LMonoTy.tcons "bool" []]) +in context +{ types := [[]], aliases := [] } +in factory +#[Int.Add, Int.Sub, Int.Mul, Int.Div, Int.Mod, Int.Neg, Int.Lt, Int.Le, Int.Gt, Int.Ge, Bool.And, Bool.Or, Bool.Implies, Bool.Equiv, Bool.Not] +-/ +#guard_msgs in +#eval do + IO.println s!"Generating terms of type\n{example_ty}\nin context\n{repr example_ctx}\nin \ + factory\n{example_lctx.functions.map (fun f : LFunc trivialParams => f.name)}\n" + for i in List.range 100 do + let P : LExpr trivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty + let t ← Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 + -- IO.println s!"Generated {t}" + if !(canAnnotate t) then + let .error e := annotate t | throw <| IO.Error.userError "Unreachable" + IO.println s!"FAILED({i}): {e}\n{t}\n\nSHRUNK TO:\n{shrinkFun (not ∘ canAnnotate) t}\n\n" + +def isIntConst (t : LExpr trivialParams.mono) : Bool := +match t with +| .const _ (.intConst _) => true +| _ => false + +def reduces (t : LExpr trivialParams.mono) : Bool := + let t' := t.eval 1000 example_lstate + isIntConst t' + +/-- info: Generating terms of type +Lambda.LTy.forAll [] (Lambda.LMonoTy.tcons "arrow" [Lambda.LMonoTy.tcons "bool" [], Lambda.LMonoTy.tcons "bool" []]) +in context +{ types := [[]], aliases := [] } +in factory +#[Int.Add, Int.Sub, Int.Mul, Int.Div, Int.Mod, Int.Neg, Int.Lt, Int.Le, Int.Gt, Int.Ge, Bool.And, Bool.Or, Bool.Implies, Bool.Equiv, Bool.Not] +-/ +#guard_msgs(info, drop error) in +#eval do + IO.println s!"Generating terms of type\n{example_ty}\nin context\n{repr example_ctx}\nin \ + factory\n{example_lctx.functions.map (fun f : LFunc _ => f.name)}\n" + for i in List.range 100 do + let P : LExpr trivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t (.forAll [] (.tcons "int" [])) + let t ← Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 + -- Unfortunately this *can* fail, if we compare two terms at arrow types. + if !(reduces t) then + IO.println s!"NOT A VALUE({i}): {t}\nREDUCES TO\n{t.eval 10000 example_lstate}\n\n" diff --git a/lake-manifest.json b/lake-manifest.json index 2dfed81d1c..6b7912b6dd 100644 --- a/lake-manifest.json +++ b/lake-manifest.json @@ -1,5 +1,15 @@ {"version": "1.1.0", "packagesDir": ".lake/packages", - "packages": [], + "packages": + [{"url": "https://github.com/leanprover-community/plausible.git", + "type": "git", + "subDir": null, + "scope": "", + "rev": "b949552f6ca8e223f424b3e3b33f74185bbf1179", + "name": "plausible", + "manifestFile": "lake-manifest.json", + "inputRev": "b949552f6ca8e223f424b3e3b33f74185bbf1179", + "inherited": false, + "configFile": "lakefile.toml"}], "name": "Strata", "lakeDir": ".lake"} diff --git a/lakefile.toml b/lakefile.toml index 83e2a9f2fa..04e4799fda 100644 --- a/lakefile.toml +++ b/lakefile.toml @@ -3,6 +3,11 @@ version = "0.1.0" defaultTargets = ["Strata", "StrataMain", "StrataVerify", "StrataToCBMC"] testDriver = "StrataTest" +[[require]] +name = "plausible" +git = "https://github.com/leanprover-community/plausible.git" +rev = "b949552f6ca8e223f424b3e3b33f74185bbf1179" + [[lean_lib]] name = "Strata" From e1c5e2bc08f2b5c7efe896aabc6691382ae71cc2 Mon Sep 17 00:00:00 2001 From: Vidas Jocius <205684404+vjjocius@users.noreply.github.com> Date: Thu, 4 Dec 2025 23:21:25 -0500 Subject: [PATCH 08/68] Add all executables to default targets (#237) **Description of changes:** Adding ``strata`` and ``BoogieToGoto`` to default targets list. This ensures that all binaries are generated when running ``lake build``. My assumption here is that this was omitted by mistake, but feel free to discard this PR if that was intentional. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. Co-authored-by: Vidas Jocius --- lakefile.toml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lakefile.toml b/lakefile.toml index 04e4799fda..f87813936f 100644 --- a/lakefile.toml +++ b/lakefile.toml @@ -1,6 +1,6 @@ name = "Strata" version = "0.1.0" -defaultTargets = ["Strata", "StrataMain", "StrataVerify", "StrataToCBMC"] +defaultTargets = ["Strata", "strata", "StrataMain", "StrataVerify", "StrataToCBMC", "BoogieToGoto"] testDriver = "StrataTest" [[require]] @@ -30,4 +30,4 @@ name = "StrataVerify" name = "StrataToCBMC" [[lean_exe]] -name = "BoogieToGoto" \ No newline at end of file +name = "BoogieToGoto" From f9be351076aed862f93255d0cbb6f65c7218e34a Mon Sep 17 00:00:00 2001 From: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Date: Fri, 5 Dec 2025 11:46:07 -0600 Subject: [PATCH 09/68] pyanalyze burndown (#252) *Issue #, if available:* *Description of changes:* By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/Languages/Python/BoogiePrelude.lean | 85 +++++- .../Languages/Python/FunctionSignatures.lean | 29 +- Strata/Languages/Python/PythonToBoogie.lean | 267 ++++++++++++++---- StrataMain.lean | 8 +- 4 files changed, 314 insertions(+), 75 deletions(-) diff --git a/Strata/Languages/Python/BoogiePrelude.lean b/Strata/Languages/Python/BoogiePrelude.lean index 2ee19ff787..1b68c3248b 100644 --- a/Strata/Languages/Python/BoogiePrelude.lean +++ b/Strata/Languages/Python/BoogiePrelude.lean @@ -25,7 +25,7 @@ axiom [Object_len_ge_zero]: (forall x : Object :: Object_len(x) >= 0); function inheritsFrom(child : string, parent : string) : (bool); axiom [inheritsFrom_refl]: (forall s: string :: {inheritsFrom(s, s)} inheritsFrom(s, s)); -///////////////////////////////////////////////////////////////////////////////////// +// ///////////////////////////////////////////////////////////////////////////////////// // Exceptions // TODO: Formalize the exception hierarchy here: @@ -148,22 +148,14 @@ axiom [PyReMatchRegex_def_noFlg]: // no exception, call PyReMatchRegex. function PyReMatchStr(pattern : string, str : string, flags : int) : Except Error bool; -///////////////////////////////////////////////////////////////////////////////////// +// ///////////////////////////////////////////////////////////////////////////////////// // List of strings type ListStr; function ListStr_nil() : (ListStr); function ListStr_cons(x0 : string, x1 : ListStr) : (ListStr); -///////////////////////////////////////////////////////////////////////////////////// - -// Uninterpreted procedures -procedure importFrom(module : string, names : ListStr, level : int) returns (); -procedure import(names : ListStr) returns (); -procedure print(msg : string) returns (); - -///////////////////////////////////////////////////////////////////////////////////// -///////////////////////////////////////////////////////////////////////////////////// +// ///////////////////////////////////////////////////////////////////////////////////// // Temporary Types @@ -311,7 +303,78 @@ axiom (forall v : BoolOrStrOrNone :: {BoolOrStrOrNone_tag(v)} BoolOrStrOrNone_tag(v) == BSN_BOOL_TAG || BoolOrStrOrNone_tag(v) == BSN_STR_TAG || BoolOrStrOrNone_tag(v) == BSN_NONE_TAG); + +// DictStrStrOrNone +type DictStrStrOrNone; +type DictStrStrOrNoneTag; +const DSSN_BOOL_TAG : DictStrStrOrNoneTag; +const DSSN_NONE_TAG : DictStrStrOrNoneTag; +function DictStrStrOrNone_tag(v : DictStrStrOrNone) : DictStrStrOrNoneTag; +function DictStrStrOrNone_str_val(v : DictStrStrOrNone) : string; +function DictStrStrOrNone_none_val(v : DictStrStrOrNone) : None; +function DictStrStrOrNone_mk_str(s : string) : DictStrStrOrNone; +function DictStrStrOrNone_mk_none(v : None) : DictStrStrOrNone; +axiom (forall s : string :: {DictStrStrOrNone_mk_str(s)} + DictStrStrOrNone_tag(DictStrStrOrNone_mk_str(s)) == DSSN_BOOL_TAG && + DictStrStrOrNone_str_val(DictStrStrOrNone_mk_str(s)) == s); +axiom (forall n : None :: {DictStrStrOrNone_mk_none(n)} + DictStrStrOrNone_tag(DictStrStrOrNone_mk_none(n)) == DSSN_NONE_TAG && + DictStrStrOrNone_none_val(DictStrStrOrNone_mk_none(n)) == n); +axiom (forall v : DictStrStrOrNone :: {DictStrStrOrNone_tag(v)} + DictStrStrOrNone_tag(v) == DSSN_BOOL_TAG || + DictStrStrOrNone_tag(v) == DSSN_NONE_TAG); +axiom [unique_DictStrStrOrNoneTag]: DSSN_BOOL_TAG != DSSN_NONE_TAG; + +type BytesOrStrOrNone; +function BytesOrStrOrNone_mk_none(v : None) : (BytesOrStrOrNone); +function BytesOrStrOrNone_mk_str(s : string) : (BytesOrStrOrNone); + +type DictStrAny; +function DictStrAny_mk(s : string) : (DictStrAny); + +type Client; +type ClientTag; +const C_S3_TAG : ClientTag; +const C_CW_TAG : ClientTag; +function Client_tag(v : Client) : (ClientTag); + +// Unique const axioms axiom [unique_BoolOrStrOrNoneTag]: BSN_BOOL_TAG != BSN_STR_TAG && BSN_BOOL_TAG != BSN_NONE_TAG && BSN_STR_TAG != BSN_NONE_TAG; + +// ///////////////////////////////////////////////////////////////////////////////////// + +// Uninterpreted procedures +procedure importFrom(module : string, names : ListStr, level : int) returns (); +procedure import(names : ListStr) returns (); +procedure print(msg : string, opt : StrOrNone) returns (); + +procedure json_dumps(msg : DictStrAny, opt_indent : IntOrNone) returns (s: string, maybe_except: ExceptOrNone) +; + +procedure json_loads(msg : string) returns (d: DictStrAny, maybe_except: ExceptOrNone) +; + +procedure input(msg : string) returns (result: string, maybe_except: ExceptOrNone) +; + +procedure random_choice(l : ListStr) returns (result: string, maybe_except: ExceptOrNone) +; + +function str_in_list_str(s : string, l: ListStr) : bool; + +function str_in_dict_str_any(s : string, l: DictStrAny) : bool; + +function list_str_get(l : ListStr, i: int) : string; + +function str_len(s : string) : int; + +function dict_str_any_get(d : DictStrAny, k: string) : DictStrAny; + +function dict_str_any_length(d : DictStrAny) : int; + +// ///////////////////////////////////////////////////////////////////////////////////// + + procedure test_helper_procedure(req_name : string, opt_name : StrOrNone) returns (maybe_except: ExceptOrNone) spec { requires [req_name_is_foo]: req_name == "foo"; diff --git a/Strata/Languages/Python/FunctionSignatures.lean b/Strata/Languages/Python/FunctionSignatures.lean index 4a3e076a03..6fbaf50511 100644 --- a/Strata/Languages/Python/FunctionSignatures.lean +++ b/Strata/Languages/Python/FunctionSignatures.lean @@ -13,6 +13,11 @@ namespace Python def getFuncSigOrder (fname: String) : List String := match fname with | "test_helper_procedure" => ["req_name", "opt_name"] + | "print" => ["msg", "opt"] + | "json_dumps" => ["msg", "opt_indent"] + | "json_loads" => ["msg"] + | "input" => ["msg"] + | "random_choice" => ["l"] | _ => panic! s!"Missing function signature : {fname}" -- We should extract the function signatures from the prelude: @@ -23,6 +28,28 @@ def getFuncSigType (fname: String) (arg: String) : String := | "req_name" => "string" | "opt_name" => "StrOrNone" | _ => panic! s!"Unrecognized arg : {arg}" + | "print" => + match arg with + | "msg" => "string" + | "opt" => "StrOrNone" + | _ => panic! s!"Unrecognized arg : {arg}" + | "json_dumps" => + match arg with + | "msg" => "DictStrAny" + | "opt_indent" => "IntOrNone" + | _ => panic! s!"Unrecognized arg : {arg}" + | "json_loads" => + match arg with + | "msg" => "string" + | _ => panic! s!"Unrecognized arg : {arg}" + | "input" => + match arg with + | "msg" => "string" + | _ => panic! s!"Unrecognized arg : {arg}" + | "random_choice" => + match arg with + | "l" => "ListStr" + | _ => panic! s!"Unrecognized arg : {arg}" | _ => panic! s!"Missing function signature : {fname}" def TypeStrToBoogieExpr (ty: String) : Boogie.Expression.Expr := @@ -36,7 +63,7 @@ def TypeStrToBoogieExpr (ty: String) : Boogie.Expression.Expr := | "AnyOrNone" => .app () (.op () "AnyOrNone_mk_none" none) (.op () "None_none" none) | "IntOrNone" => .app () (.op () "IntOrNone_mk_none" none) (.op () "None_none" none) | "BytesOrStrOrNone" => .app () (.op () "BytesOrStrOrNone_mk_none" none) (.op () "None_none" none) - | "MappingStrStrOrNone" => .app () (.op () "MappingStrStrOrNone_mk_none" none) (.op () "None_none" none) + | "DictStrStrOrNone" => .app () (.op () "DictStrStrOrNone_mk_none" none) (.op () "None_none" none) | _ => panic! s!"unsupported type: {ty}" end Python diff --git a/Strata/Languages/Python/PythonToBoogie.lean b/Strata/Languages/Python/PythonToBoogie.lean index 40485fe70b..7a57f55031 100644 --- a/Strata/Languages/Python/PythonToBoogie.lean +++ b/Strata/Languages/Python/PythonToBoogie.lean @@ -29,6 +29,9 @@ def dummyDictStrAny : Boogie.Expression.Expr := .fvar () "DUMMY_DICT_STR_ANY" no def strType : Boogie.Expression.Ty := .forAll [] (.tcons "string" []) def dummyStr : Boogie.Expression.Expr := .fvar () "DUMMY_STR" none +def listStrType : Boogie.Expression.Ty := .forAll [] (.tcons "ListStr" []) +def dummyListStr : Boogie.Expression.Expr := .fvar () "DUMMY_LIST_STR" none + ------------------------------------------------------------------------------- @@ -75,29 +78,96 @@ def handleAdd (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := | (.tcons "string" []), (.tcons "string" []) => .app () (.app () (.op () "Str.Concat" mty[string → (string → string)]) lhs) rhs | _, _ => panic! s!"Unimplemented add op for {lhs} + {rhs}" -partial def PyExprToBoogie (e : Python.expr SourceRange) : Boogie.Expression.Expr := - match e with - | .Call _ _ _ _ => panic! s!"Call should be handled at stmt level: {repr e}" - | .Constant _ c _ => PyConstToBoogie c - | .Name _ n _ => - match n.val with - | "AssertionError" | "Exception" => .strConst () n.val - | _ => .fvar () n.val none - | .JoinedStr _ ss => PyExprToBoogie ss.val[0]! -- TODO: need to actually join strings - | .BinOp _ lhs op rhs => match op with - | .Add _ => handleAdd (PyExprToBoogie lhs) (PyExprToBoogie rhs) - | _ => panic! s!"Unhandled BinOp: {repr e}" - | .Compare _ lhs op rhs => - match op.val with - | #[v] => match v with - | Strata.Python.cmpop.Eq _ => - let l := PyExprToBoogie lhs - assert! rhs.val.size == 1 - let r := PyExprToBoogie rhs.val[0]! - (.eq () l r) +def handleMult (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := + let lty : Lambda.LMonoTy := mty[string] + let rty : Lambda.LMonoTy := mty[int] + match lty, rty with + | (.tcons "string" []), (.tcons "int" []) => + match lhs, rhs with + | .strConst () s, .intConst () i => .strConst () (String.join (List.replicate i.toNat s)) + | _, _ => panic! s!"We only handle str * int for constant strings and ints. Got: {lhs} and {rhs}" + | _, _ => panic! s!"Unimplemented add op for {lhs} + {rhs}" + +def handleNot (arg: Boogie.Expression.Expr) : Boogie.Expression.Expr := + let ty : Lambda.LMonoTy := (.tcons "ListStr" []) + match ty with + | (.tcons "ListStr" []) => .eq () arg (.op () "ListStr_nil" none) + | _ => panic! s!"Unimplemented not op for {arg}" + +def handleDict (keys: Array (Python.opt_expr SourceRange)) (values: Array (Python.expr SourceRange)) : Boogie.Expression.Expr := + .app () (.op () "DictStrAny_mk" none) (.strConst () "DefaultDict") + +structure SubstitutionRecord where + pyExpr : Python.expr SourceRange + boogieExpr : Boogie.Expression.Expr + +instance : Repr (List SubstitutionRecord) where + reprPrec xs _ := + let py_exprs := xs.map (λ r => r.pyExpr) + s!"{repr py_exprs}" + +def PyExprIdent (e1 e2: Python.expr SourceRange) : Bool := + match e1, e2 with + | .Call sr1 _ _ _, .Call sr2 _ _ _ => sr1 == sr2 + | _ , _ => false + +-- Translating a Python expression can require Boogie statements, e.g., a function call +-- We translate these by first defining temporary variables to store the results of the stmts +-- and then using those variables in the expression. +structure PyExprTranslated where + stmts : List Boogie.Statement + expr: Boogie.Expression.Expr +deriving Inhabited + +partial def PyExprToBoogie (e : Python.expr SourceRange) (substitution_records : Option (List SubstitutionRecord) := none) : PyExprTranslated := + if h : substitution_records.isSome && (substitution_records.get!.find? (λ r => PyExprIdent r.pyExpr e)).isSome then + have hr : (List.find? (fun r => PyExprIdent r.pyExpr e) substitution_records.get!).isSome = true := by rw [Bool.and_eq_true] at h; exact h.2 + let record := (substitution_records.get!.find? (λ r => PyExprIdent r.pyExpr e)).get hr + {stmts := [], expr := record.boogieExpr} + else + match e with + | .Call _ f _ _ => panic! s!"Call should be handled at stmt level: \n(func: {repr f}) \n(Records: {repr substitution_records}) \n(AST: {repr e.toAst})" + | .Constant _ c _ => {stmts := [], expr := PyConstToBoogie c} + | .Name _ n _ => + match n.val with + | "AssertionError" | "Exception" => {stmts := [], expr := .strConst () n.val} + | _ => {stmts := [], expr := .fvar () n.val none} + | .JoinedStr _ ss => PyExprToBoogie ss.val[0]! -- TODO: need to actually join strings + | .BinOp _ lhs op rhs => + let lhs := (PyExprToBoogie lhs) + let rhs := (PyExprToBoogie rhs) + match op with + | .Add _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleAdd lhs.expr rhs.expr} + | .Mult _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleMult lhs.expr rhs.expr} + | _ => panic! s!"Unhandled BinOp: {repr e}" + | .Compare _ lhs op rhs => + let lhs := PyExprToBoogie lhs + assert! rhs.val.size == 1 + let rhs := PyExprToBoogie rhs.val[0]! + match op.val with + | #[v] => match v with + | Strata.Python.cmpop.Eq _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := (.eq () lhs.expr rhs.expr)} + | Strata.Python.cmpop.In _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := .app () (.app () (.op () "str_in_dict_str_any" none) lhs.expr) rhs.expr} + | _ => panic! s!"Unhandled comparison op: {repr op.val}" | _ => panic! s!"Unhandled comparison op: {repr op.val}" - | _ => panic! s!"Unhandled comparison op: {repr op.val}" - | _ => panic! s!"Unhandled Expr: {repr e}" + | .Dict _ keys values => {stmts := [], expr := handleDict keys.val values.val} + | .ListComp _ keys values => panic! "ListComp must be handled at stmt level" + | .UnaryOp _ op arg => match op with + | .Not _ => {stmts := [], expr := handleNot (PyExprToBoogie arg).expr} + | _ => panic! "Unsupported UnaryOp: {repr e}" + | .Subscript _ v slice _ => + let l := PyExprToBoogie v + let k := PyExprToBoogie slice + let access_check : Boogie.Statement := .assert "subscript_bounds_check" (.app () (.app () (.op () "str_in_dict_str_any" none) k.expr) l.expr) + {stmts := l.stmts ++ k.stmts ++ [access_check], expr := .app () (.app () (.op () "dict_str_any_get" none) l.expr) k.expr} + | _ => panic! s!"Unhandled Expr: {repr e}" + +partial def PyExprToBoogieWithSubst (substitution_records : Option (List SubstitutionRecord)) (e : Python.expr SourceRange) : Boogie.Expression.Expr := + (PyExprToBoogie e substitution_records).expr partial def PyExprToString (e : Python.expr SourceRange) : String := match e with @@ -112,14 +182,18 @@ partial def PyExprToString (e : Python.expr SourceRange) : String := assert! elts.val.size == 2 s!"Dict[{PyExprToString elts.val[0]!} {PyExprToString elts.val[1]!}]" | _ => panic! s!"Unsupported slice: {repr slice}" + | "List" => + match slice with + | .Name _ id _ => s!"List[{id.val}]" + | _ => panic! s!"Unsupported slice: {repr slice}" | _ => panic! s!"Unsupported subscript to string: {repr e}" | _ => panic! s!"Unhandled Expr: {repr e}" -partial def PyKWordsToBoogie (kw : Python.keyword SourceRange) : (String × Boogie.Expression.Expr) := +partial def PyKWordsToBoogie (substitution_records : Option (List SubstitutionRecord)) (kw : Python.keyword SourceRange) : (String × Boogie.Expression.Expr) := match kw with | .mk_keyword _ name expr => match name.val with - | some n => (n.val, PyExprToBoogie expr) + | some n => (n.val, PyExprToBoogieWithSubst substitution_records expr) | none => panic! "Keyword arg should have a name" structure PythonFunctionDecl where @@ -138,32 +212,45 @@ def callCanThrow (func_infos : List PythonFunctionDecl) (stmt: Python.stmt Sourc | _ => false | _ => false +open Strata.Python.Internal in +def noneOrExpr (fname n : String) (e: Boogie.Expression.Expr) : Boogie.Expression.Expr := + let type_str := getFuncSigType fname n + if type_str.endsWith "OrNone" then + -- Optional param. Need to wrap e.g., string into StrOrNone + match type_str with + | "IntOrNone" => .app () (.op () "IntOrNone_mk_int" none) e + | "StrOrNone" => .app () (.op () "StrOrNone_mk_str" none) e + | "BytesOrStrOrNone" => .app () (.op () "BytesOrStrOrNone_mk_str" none) e + | _ => panic! "Unsupported type_str: "++ type_str + else + e + -- TODO: we should be checking that args are right open Strata.Python.Internal in -def argsAndKWordsToCanonicalList (func_infos : List PythonFunctionDecl) (fname: String) (args : Array (Python.expr SourceRange)) (kwords: Array (Python.keyword SourceRange)) : List Boogie.Expression.Expr := - -- TODO: we need a more general solution for other functions - if fname == "print" then - args.toList.map PyExprToBoogie - else if func_infos.any (λ e => e.name == fname) then - args.toList.map PyExprToBoogie +def argsAndKWordsToCanonicalList (func_infos : List PythonFunctionDecl) + (fname: String) + (args : Array (Python.expr SourceRange)) + (kwords: Array (Python.keyword SourceRange)) + (substitution_records : Option (List SubstitutionRecord) := none) : List Boogie.Expression.Expr := + if func_infos.any (λ e => e.name == fname) then + args.toList.map (PyExprToBoogieWithSubst substitution_records) else let required_order := getFuncSigOrder fname assert! args.size <= required_order.length let remaining := required_order.drop args.size - let kws_and_exprs := kwords.toList.map PyKWordsToBoogie + let kws_and_exprs := kwords.toList.map (PyKWordsToBoogie substitution_records) let ordered_remaining_args := remaining.map (λ n => match kws_and_exprs.find? (λ p => p.fst == n) with | .some p => - let type_str := getFuncSigType fname n - if type_str.endsWith "OrNone" then - -- Optional param. Need to wrap e.g., string into StrOrNone - match type_str with - | "StrOrNone" => .app () (.op () "StrOrNone_mk_str" none) p.snd - | "BytesOrStrOrNone" => .app () (.op () "BytesOrStrOrNone_mk_str" none) p.snd - | _ => panic! "Unsupported type_str: "++ type_str - else - p.snd + noneOrExpr fname n p.snd | .none => Strata.Python.TypeStrToBoogieExpr (getFuncSigType fname n)) - args.toList.map PyExprToBoogie ++ ordered_remaining_args + let args := args.map (PyExprToBoogieWithSubst substitution_records) + let args := (List.range required_order.length).filterMap (λ n => + if n < args.size then + let arg_name := required_order[n]! -- Guaranteed by range. Using finRange causes breaking coercions to Nat. + some (noneOrExpr fname arg_name args[n]!) + else + none) + args ++ ordered_remaining_args def handleCallThrow (jmp_target : String) : Boogie.Statement := let cond := .eq () (.app () (.op () "ExceptOrNone_tag" none) (.fvar () "maybe_except" none)) (.op () "EN_STR_TAG" none) @@ -195,14 +282,15 @@ def deduplicateTypeAnnotations (l : List (String × Option String)) : List (Stri | .some ty => (n, ty) | .none => panic s!"Missing type annotations for {n}") -def collectVarDecls (stmts: Array (Python.stmt SourceRange)) : List Boogie.Statement := - let go (s : Python.stmt SourceRange) : List (String × Option String) := +partial def collectVarDecls (stmts: Array (Python.stmt SourceRange)) : List Boogie.Statement := + let rec go (s : Python.stmt SourceRange) : List (String × Option String) := match s with | .Assign _ lhs _ _ => let names := lhs.val.toList.map PyExprToString names.map (λ n => (n, none)) | .AnnAssign _ lhs ty _ _ => [(PyExprToString lhs, PyExprToString ty)] + | .If _ _ body _ => body.val.toList.flatMap go | _ => [] let dup := stmts.toList.flatMap go let dedup := deduplicateTypeAnnotations dup @@ -214,12 +302,25 @@ def collectVarDecls (stmts: Array (Python.stmt SourceRange)) : List Boogie.State | "str" => [(.init name t[string] (.strConst () "")), (.havoc name)] | "int" => [(.init name t[int] (.intConst () 0)), (.havoc name)] | "bytes" => [(.init name t[string] (.strConst () "")), (.havoc name)] - | "S3Client" => [(.init name clientType dummyClient), (.havoc name)] + | "Client" => [(.init name clientType dummyClient), (.havoc name)] | "Dict[str Any]" => [(.init name dictStrAnyType dummyDictStrAny), (.havoc name)] + | "List[str]" => [(.init name listStrType dummyListStr), (.havoc name)] | _ => panic! s!"Unsupported type annotation: `{ty_name}`" let foo := dedup.map toBoogie foo.flatten +def isCall (e: Python.expr SourceRange) : Bool := + match e with + | .Call _ _ _ _ => true + | _ => false + +def initTmpParam (p: Python.expr SourceRange × String) : List Boogie.Statement := +-- [.call lhs fname (argsAndKWordsToCanonicalList func_infos fname args.val kwords.val substitution_records)] + match p.fst with + | .Call _ f args _ => + [(.init p.snd t[string] (.strConst () "")), .call [p.snd, "maybe_except"] "json_dumps" [(.app () (.op () "DictStrAny_mk" none) (.strConst () "DefaultDict")), (Strata.Python.TypeStrToBoogieExpr "IntOrNone")]] + | _ => panic! "Expected Call" + mutual partial def exceptHandlersToBoogie (jmp_targets: List String) (func_infos : List PythonFunctionDecl) (h : Python.excepthandler SourceRange) : List Boogie.Statement := @@ -232,15 +333,47 @@ partial def exceptHandlersToBoogie (jmp_targets: List String) (func_infos : List let get_ex_tag : Boogie.BoogieIdent := "ExceptOrNone_code_val" let exception_ty : Boogie.Expression.Expr := .app () (.op () get_ex_tag none) (.fvar () "maybe_except" none) let rhs_curried : Boogie.Expression.Expr := .app () (.op () inherits_from none) exception_ty - let rhs : Boogie.Expression.Expr := .app () rhs_curried ((PyExprToBoogie ex_ty)) + let res := PyExprToBoogie ex_ty + let rhs : Boogie.Expression.Expr := .app () rhs_curried (res.expr) let call := .set "exception_ty_matches" rhs - [call] + res.stmts ++ [call] | .none => [.set "exception_ty_matches" (.boolConst () false)] let cond := .fvar () "exception_ty_matches" none let body_if_matches := body.val.toList.flatMap (PyStmtToBoogie jmp_targets func_infos) ++ [.goto jmp_targets[1]!] set_ex_ty_matches ++ [.ite cond {ss := body_if_matches} {ss := []}] +partial def handleFunctionCall (lhs: List Boogie.Expression.Ident) + (fname: String) + (args: Ann (Array (Python.expr SourceRange)) SourceRange) + (kwords: Ann (Array (Python.keyword SourceRange)) SourceRange) + (_jmp_targets: List String) + (func_infos : List PythonFunctionDecl) + (_s : Python.stmt SourceRange) : List Boogie.Statement := + -- Boogie doesn't allow nested function calls, so we need to introduce temporary variables for each nested call + let nested_args_calls := args.val.filterMap (λ a => if isCall a then some a else none) + let args_calls_to_tmps := nested_args_calls.map (λ a => (a, s!"call_arg_tmp_{a.toAst.ann.start}")) + let nested_kwords_calls := kwords.val.filterMap (λ a => + let arg := match a with + | .mk_keyword _ _ f => f + if isCall arg then some arg else none) + let kwords_calls_to_tmps := nested_kwords_calls.map (λ a => (a, s!"call_kword_tmp_{a.toAst.ann.start}")) + + let substitution_records : List SubstitutionRecord := args_calls_to_tmps.toList.map (λ p => {pyExpr := p.fst, boogieExpr := .fvar () p.snd none}) ++ + kwords_calls_to_tmps.toList.map (λ p => {pyExpr := p.fst, boogieExpr := .fvar () p.snd none}) + args_calls_to_tmps.toList.flatMap initTmpParam ++ + kwords_calls_to_tmps.toList.flatMap initTmpParam ++ + [.call lhs fname (argsAndKWordsToCanonicalList func_infos fname args.val kwords.val substitution_records)] + +partial def handleComprehension (lhs: Python.expr SourceRange) (gen: Array (Python.comprehension SourceRange)) : List Boogie.Statement := + assert! gen.size == 1 + match gen[0]! with + | .mk_comprehension _ _ itr _ _ => + let res := PyExprToBoogie itr + let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) res.expr) (.intConst () 0)) + let then_ss: List Boogie.Statement := [.havoc (PyExprToString lhs)] + let else_ss: List Boogie.Statement := [.set (PyExprToString lhs) (.op () "ListStr_nil" none)] + res.stmts ++ [.ite guard {ss := then_ss} {ss := else_ss}] partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonFunctionDecl) (s : Python.stmt SourceRange) : List Boogie.Statement := assert! jmp_targets.length > 0 @@ -258,23 +391,27 @@ partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonF | .Expr _ (.Call _ func args kwords) => let fname := PyExprToString func if callCanThrow func_infos s then - [.call ["maybe_except"] fname (argsAndKWordsToCanonicalList func_infos fname args.val kwords.val)] + handleFunctionCall ["maybe_except"] fname args kwords jmp_targets func_infos s else - [.call [] fname (argsAndKWordsToCanonicalList func_infos fname args.val kwords.val)] + handleFunctionCall [] fname args kwords jmp_targets func_infos s | .Expr _ _ => panic! "Can't handle Expr statements that aren't calls" | .Assign _ lhs (.Call _ func args kwords) _ => assert! lhs.val.size == 1 let fname := PyExprToString func - [.call [PyExprToString lhs.val[0]!, "maybe_except"] fname (argsAndKWordsToCanonicalList func_infos fname args.val kwords.val)] + handleFunctionCall [PyExprToString lhs.val[0]!, "maybe_except"] fname args kwords jmp_targets func_infos s | .Assign _ lhs rhs _ => assert! lhs.val.size == 1 - [.set (PyExprToString lhs.val[0]!) (PyExprToBoogie rhs)] + let res := PyExprToBoogie rhs + res.stmts ++ [.set (PyExprToString lhs.val[0]!) res.expr] | .AnnAssign _ lhs _ { ann := _ , val := (.some (.Call _ func args kwords))} _ => let fname := PyExprToString func - [.call [PyExprToString lhs, "maybe_except"] fname (argsAndKWordsToCanonicalList func_infos fname args.val kwords.val)] + handleFunctionCall [PyExprToString lhs, "maybe_except"] fname args kwords jmp_targets func_infos s + | .AnnAssign _ lhs _ { ann := _ , val := (.some (.ListComp _ _ gen))} _ => + handleComprehension lhs gen.val | .AnnAssign _ lhs _ {ann := _, val := (.some e)} _ => - [.set (PyExprToString lhs) (PyExprToBoogie e)] + let res := (PyExprToBoogie e) + res.stmts ++ [.set (PyExprToString lhs) res.expr] | .Try _ body handlers _orelse _finalbody => let new_target := s!"excepthandlers_{jmp_targets[0]!}" let entry_except_handlers := [.block new_target {ss := []}] @@ -284,7 +421,16 @@ partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonF [.block "try_block" {ss := var_decls ++ body.val.toList.flatMap (PyStmtToBoogie new_jmp_stack func_infos) ++ entry_except_handlers ++ except_handlers}] | .FunctionDef _ _ _ _ _ _ _ _ => panic! "Can't translate FunctionDef to Boogie statement" | .If _ test then_b else_b => - [.ite (PyExprToBoogie test) {ss := (ArrPyStmtToBoogie func_infos then_b.val)} {ss := (ArrPyStmtToBoogie func_infos else_b.val)}] -- TODO: fix this + [.ite (PyExprToBoogie test).expr {ss := (ArrPyStmtToBoogie func_infos then_b.val)} {ss := (ArrPyStmtToBoogie func_infos else_b.val)}] -- TODO: fix this + | .Return _ v => + match v.val with + | .some v => [.set "ret" (PyExprToBoogie v).expr, .goto jmp_targets[0]!] -- TODO: need to thread return value name here. For now, assume "ret" + | .none => [.goto jmp_targets[0]!] + | .For _ _tgt itr body _ _ => + -- Do one unrolling: + let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) (PyExprToBoogie itr).expr) (.intConst () 0)) + [.ite guard {ss := (ArrPyStmtToBoogie func_infos body.val)} {ss := []}] + -- TODO: missing havoc | _ => panic! s!"Unsupported {repr s}" if callCanThrow func_infos s then @@ -321,16 +467,19 @@ def pyTyStrToLMonoTy (ty_str: String) : Lambda.LMonoTy := | "str" => mty[string] | _ => panic! s!"Unsupported type: {ty_str}" -def pythonFuncToBoogie (name : String) (args: List (String × String)) (body: Array (Python.stmt SourceRange)) (spec : Boogie.Procedure.Spec) (func_infos : List PythonFunctionDecl) : Boogie.Procedure := +def pythonFuncToBoogie (name : String) (args: List (String × String)) (body: Array (Python.stmt SourceRange)) (ret : Option (Python.expr SourceRange)) (spec : Boogie.Procedure.Spec) (func_infos : List PythonFunctionDecl) : Boogie.Procedure := let inputs : List (Lambda.Identifier Boogie.Visibility × Lambda.LMonoTy) := args.map (λ p => (p.fst, pyTyStrToLMonoTy p.snd)) let varDecls := collectVarDecls body ++ [(.init "exception_ty_matches" t[bool] (.boolConst () false)), (.havoc "exception_ty_matches")] let stmts := ArrPyStmtToBoogie func_infos body let body := varDecls ++ stmts ++ [.block "end" {ss := []}] + let outputs : Lambda.LMonoTySignature := match ret with + | .some v => [("ret", (.tcons "DictStrAny" [])), ("maybe_except", (.tcons "ExceptOrNone" []))] + | .none => [("maybe_except", (.tcons "ExceptOrNone" []))] { header := {name, typeArgs := [], inputs, - outputs := [("maybe_except", (.tcons "ExceptOrNone" []))]}, + outputs}, spec, body } @@ -345,13 +494,13 @@ def unpackPyArguments (args: Python.arguments SourceRange) : List (String × Str | .mk_arg _ name oty _ => match oty.val with | .some ty => (name.val, PyExprToString ty) - | _ => panic! s!"Missing type annotation on arg: {repr a}") + | _ => panic! s!"Missing type annotation on arg: {repr a} ({repr args})") def PyFuncDefToBoogie (s: Python.stmt SourceRange) (func_infos : List PythonFunctionDecl) : Boogie.Decl × PythonFunctionDecl := match s with - | .FunctionDef _ name args body _ _ret _ _ => + | .FunctionDef _ name args body _ ret _ _ => let args := unpackPyArguments args - (.proc (pythonFuncToBoogie name.val args body.val default func_infos), {name := name.val, args}) + (.proc (pythonFuncToBoogie name.val args body.val ret.val default func_infos), {name := name.val, args}) | _ => panic! s!"Expected function def: {repr s}" def pythonToBoogie (pgm: Strata.Program): Boogie.Program := @@ -382,6 +531,6 @@ def pythonToBoogie (pgm: Strata.Program): Boogie.Program := let func_defs := func_defs_and_infos.fst let func_infos := func_defs_and_infos.snd - {decls := globals ++ func_defs ++ [.proc (pythonFuncToBoogie "__main__" [] non_func_blocks default func_infos)]} + {decls := globals ++ func_defs ++ [.proc (pythonFuncToBoogie "__main__" [] non_func_blocks none default func_infos)]} end Strata diff --git a/StrataMain.lean b/StrataMain.lean index 3a8bda76d1..860fdffd7e 100644 --- a/StrataMain.lean +++ b/StrataMain.lean @@ -193,10 +193,10 @@ def pyAnalyzeCommand : Command where let newPgm : Boogie.Program := { decls := preludePgm.decls ++ bpgm.decls } if verbose then IO.print newPgm - let newPgm := runInlineCall newPgm - if verbose then - IO.println "Inlined: " - IO.print newPgm + -- let newPgm := runInlineCall newPgm + -- if verbose then + -- IO.println "Inlined: " + -- IO.print newPgm let vcResults ← EIO.toIO (fun f => IO.Error.userError (toString f)) (Boogie.verify "z3" newPgm { Options.default with stopOnFirstError := false, verbose, From 6a647e4145e769a74228580f35ecdfa6ee5f8aac Mon Sep 17 00:00:00 2001 From: Josh Cohen <36058610+joscoh@users.noreply.github.com> Date: Fri, 5 Dec 2025 17:52:50 -0500 Subject: [PATCH 10/68] Change `Imperative.Stmt` to remove `Block` mutual recursion (#216) Makes some definitions cleaner as they no longer need angle brackets or `{ss := _}`. `Block` is now an `abbrev` for `List Stmt`, and we don't need both `Stmts` and `Block`. This makes the semantics for statements cleaner. This also includes an induction principle for the new version of `Stmt`, though it is unused right now. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Josh Cohen Co-authored-by: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Co-authored-by: Andrew Wells --- Strata/Backends/CBMC/BoogieToCBMC.lean | 2 +- Strata/Backends/CBMC/StrataToCBMC.lean | 2 +- Strata/DL/Imperative/SemanticsProps.lean | 14 +- Strata/DL/Imperative/Stmt.lean | 148 ++++++++++-------- Strata/DL/Imperative/StmtSemantics.lean | 55 +++---- .../DL/Imperative/StmtSemanticsSmallStep.lean | 22 +-- Strata/Languages/Boogie/CallGraph.lean | 8 +- .../Boogie/DDMTransform/Translate.lean | 6 +- Strata/Languages/Boogie/ProcedureType.lean | 4 +- Strata/Languages/Boogie/Statement.lean | 50 +++--- Strata/Languages/Boogie/StatementEval.lean | 18 +-- .../Languages/Boogie/StatementSemantics.lean | 8 +- .../Boogie/StatementSemanticsProps.lean | 34 ++-- Strata/Languages/Boogie/StatementType.lean | 34 ++-- Strata/Languages/C_Simp/C_Simp.lean | 2 +- .../C_Simp/DDMTransform/Translate.lean | 6 +- Strata/Languages/C_Simp/Verify.lean | 20 +-- Strata/Languages/Python/PythonToBoogie.lean | 18 +-- Strata/Transform/CallElimCorrect.lean | 14 +- Strata/Transform/DetToNondet.lean | 18 +-- Strata/Transform/DetToNondetCorrect.lean | 44 +++--- Strata/Transform/LoopElim.lean | 43 +++-- Strata/Transform/ProcedureInlining.lean | 11 +- .../Backends/CBMC/BoogieToCProverGOTO.lean | 2 +- .../Languages/Boogie/ProgramTypeTests.lean | 8 +- .../Languages/Boogie/StatementEvalTests.lean | 8 +- .../Languages/Boogie/StatementTypeTests.lean | 25 ++- StrataTest/Transform/DetToNondet.lean | 6 +- StrataTest/Transform/ProcedureInlining.lean | 6 +- 29 files changed, 309 insertions(+), 327 deletions(-) diff --git a/Strata/Backends/CBMC/BoogieToCBMC.lean b/Strata/Backends/CBMC/BoogieToCBMC.lean index cd975a8092..3668881f4e 100644 --- a/Strata/Backends/CBMC/BoogieToCBMC.lean +++ b/Strata/Backends/CBMC/BoogieToCBMC.lean @@ -173,7 +173,7 @@ partial def blockToJson {P : Imperative.PureExpr} (I : Lambda.LExprParams) [Iden ("statement", Json.mkObj [("id", "block")]), ("type", emptyType) ]), - ("sub", Json.arr (b.ss.map (stmtToJson (I:=I) · loc)).toArray) + ("sub", Json.arr (b.map (stmtToJson (I:=I) · loc)).toArray) ] partial def stmtToJson {P : Imperative.PureExpr} (I : Lambda.LExprParams) [IdentToStr (Lambda.Identifier I.IDMeta)] [HasLExpr P I] diff --git a/Strata/Backends/CBMC/StrataToCBMC.lean b/Strata/Backends/CBMC/StrataToCBMC.lean index 1685fadedf..025c73cc23 100644 --- a/Strata/Backends/CBMC/StrataToCBMC.lean +++ b/Strata/Backends/CBMC/StrataToCBMC.lean @@ -299,7 +299,7 @@ partial def blockToJson (b: Imperative.Block Strata.C_Simp.Expression Strata.C_S ("statement", Json.mkObj [("id", "block")]), ("type", emptyType) ]), - ("sub", Json.arr (b.ss.map (stmtToJson · loc)).toArray) + ("sub", Json.arr (b.map (stmtToJson · loc)).toArray) ] partial def stmtToJson (e : Strata.C_Simp.Statement) (loc: SourceLoc) : Json := diff --git a/Strata/DL/Imperative/SemanticsProps.lean b/Strata/DL/Imperative/SemanticsProps.lean index e6cb6ba0c4..ba753b4370 100644 --- a/Strata/DL/Imperative/SemanticsProps.lean +++ b/Strata/DL/Imperative/SemanticsProps.lean @@ -21,7 +21,7 @@ theorem eval_stmt_assert_store_cst theorem eval_stmts_assert_store_cst [HasVarsImp P (List (Stmt P (Cmd P)))] [HasVarsImp P (Cmd P)] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.assert l e md))] σ' → σ = σ' := by + EvalBlock P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.assert l e md))] σ' → σ = σ' := by intros Heval; cases Heval with | stmts_some_sem H1 H2 => cases H1 with @@ -49,8 +49,8 @@ theorem eval_stmt_assert_eq_of_pure_expr_eq theorem eval_stmts_assert_elim [HasVarsImp P (List (Stmt P (Cmd P)))] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : WellFormedSemanticEvalBool δ → - EvalStmts P (Cmd P) (EvalCmd P) δ σ (.cmd (.assert l1 e md1) :: cmds) σ' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ cmds σ' := by + EvalBlock P (Cmd P) (EvalCmd P) δ σ (.cmd (.assert l1 e md1) :: cmds) σ' → + EvalBlock P (Cmd P) (EvalCmd P) δ σ cmds σ' := by intros Hwf Heval cases Heval with | @stmts_some_sem _ _ _ σ1 _ _ Has1 Has2 => @@ -60,8 +60,8 @@ theorem eval_stmts_assert_elim theorem assert_elim [HasVarsImp P (List (Stmt P (Cmd P)))] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : WellFormedSemanticEvalBool δ → - EvalStmts P (Cmd P) (EvalCmd P) δ σ (.cmd (.assert l1 e md1) :: [.cmd (.assert l2 e md2)]) σ' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ [.cmd (.assert l3 e md3)] σ' := by + EvalBlock P (Cmd P) (EvalCmd P) δ σ (.cmd (.assert l1 e md1) :: [.cmd (.assert l2 e md2)]) σ' → + EvalBlock P (Cmd P) (EvalCmd P) δ σ [.cmd (.assert l3 e md3)] σ' := by intro Hwf Heval have Heval := eval_stmts_assert_elim Hwf Heval rw [eval_stmts_singleton] at * @@ -200,8 +200,8 @@ theorem eval_stmts_set_comm ¬ x1 = x2 → ¬ x1 ∈ HasVarsPure.getVars v2 → ¬ x2 ∈ HasVarsPure.getVars v1 → - EvalStmts P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.set x1 v1)), (.cmd (Cmd.set x2 v2))] σ' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.set x2 v2)), (.cmd (Cmd.set x1 v1))] σ'' → + EvalBlock P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.set x1 v1)), (.cmd (Cmd.set x2 v2))] σ' → + EvalBlock P (Cmd P) (EvalCmd P) δ σ [(.cmd (Cmd.set x2 v2)), (.cmd (Cmd.set x1 v1))] σ'' → σ' = σ'' := by intro Hwf Hneq Hnin1 Hnin2 Hss1 Hss2 cases Hss1; cases Hss2 diff --git a/Strata/DL/Imperative/Stmt.lean b/Strata/DL/Imperative/Stmt.lean index fb9c20d799..3bc8eae323 100644 --- a/Strata/DL/Imperative/Stmt.lean +++ b/Strata/DL/Imperative/Stmt.lean @@ -17,29 +17,60 @@ Imperative's Statements include commands and add constructs like structured and unstructured control-flow. -/ -mutual inductive Stmt (P : PureExpr) (Cmd : Type) : Type where | cmd (cmd : Cmd) - | block (label : String) (b : Block P Cmd) (md : MetaData P := .empty) + | block (label : String) (b : List (Stmt P Cmd)) (md : MetaData P := .empty) /-- `ite` (if-then-else) statement provides structured control flow. -/ - | ite (cond : P.Expr) (thenb : Block P Cmd) (elseb : Block P Cmd) (md : MetaData P := .empty) + | ite (cond : P.Expr) (thenb : List (Stmt P Cmd)) (elseb : List (Stmt P Cmd)) (md : MetaData P := .empty) /-- `loop` Loop statement with optional measure (for termination) and invariant. -/ - | loop (guard : P.Expr) (measure : Option P.Expr) (invariant : Option P.Expr) (body : Block P Cmd) (md : MetaData P := .empty) + | loop (guard : P.Expr) (measure : Option P.Expr) (invariant : Option P.Expr) (body : List (Stmt P Cmd)) (md : MetaData P := .empty) /-- `goto` provides unstructured control flow. -/ | goto (label : String) (md : MetaData P := .empty) deriving Inhabited -structure Block (P : PureExpr) (Cmd : Type) where - ss : List (Stmt P Cmd) -end - -abbrev Stmts (P : PureExpr) (Cmd : Type) := List (Stmt P Cmd) +abbrev Block (P : PureExpr) (Cmd : Type) := List (Stmt P Cmd) def Stmt.isCmd {P : PureExpr} {Cmd : Type} (s : Stmt P Cmd) : Bool := match s with | .cmd _ => true | _ => false + +/-- +Induction principle for `Stmt` +-/ +@[elab_as_elim] +def Stmt.inductionOn {P : PureExpr} {Cmd : Type} + {motive : Stmt P Cmd → Sort u} + (cmd_case : ∀ (cmd : Cmd), motive (Stmt.cmd cmd)) + (block_case : ∀ (label : String) (b : List (Stmt P Cmd)) (md : MetaData P), + (∀ s, s ∈ b → motive s) → + motive (Stmt.block label b md)) + (ite_case : ∀ (cond : P.Expr) (thenb elseb : List (Stmt P Cmd)) (md : MetaData P), + (∀ s, s ∈ thenb → motive s) → + (∀ s, s ∈ elseb → motive s) → + motive (Stmt.ite cond thenb elseb md)) + (loop_case : ∀ (guard : P.Expr) (measure invariant : Option P.Expr) + (body : List (Stmt P Cmd)) (md : MetaData P), + (∀ s, s ∈ body → motive s) → + motive (Stmt.loop guard measure invariant body md)) + (goto_case : ∀ (label : String) (md : MetaData P), + motive (Stmt.goto label md)) + (s : Stmt P Cmd) : motive s := + match s with + | Stmt.cmd c => cmd_case c + | Stmt.block label b md => + block_case label b md (fun s _ => inductionOn cmd_case block_case ite_case loop_case goto_case s) + | Stmt.ite cond thenb elseb md => + ite_case cond thenb elseb md + (fun s _ => inductionOn cmd_case block_case ite_case loop_case goto_case s) + (fun s _ => inductionOn cmd_case block_case ite_case loop_case goto_case s) + | Stmt.loop guard measure invariant body md => + loop_case guard measure invariant body md + (fun s _ => inductionOn cmd_case block_case ite_case loop_case goto_case s) + | Stmt.goto label md => goto_case label md + termination_by s + --------------------------------------------------------------------- /-! ### SizeOf -/ @@ -48,30 +79,23 @@ mutual @[simp] def Stmt.sizeOf (s : Imperative.Stmt P C) : Nat := match s with - | .cmd c => 1 + sizeOf c - | .block _ ⟨ bss ⟩ _ => 1 + Stmts.sizeOf bss - | .ite c ⟨ tss ⟩ ⟨ ess ⟩ _ => 3 + sizeOf c + Stmts.sizeOf tss + Stmts.sizeOf ess - | .loop g _ _ ⟨ bss ⟩ _ => 3 + sizeOf g + Stmts.sizeOf bss + | .cmd c => 1 + SizeOf.sizeOf c + | .block _ bss _ => 1 + Block.sizeOf bss + | .ite c tss ess _ => 3 + sizeOf c + Block.sizeOf tss + Block.sizeOf ess + | .loop g _ _ bss _ => 3 + sizeOf g + Block.sizeOf bss | .goto _ _ => 1 @[simp] -def Stmts.sizeOf (ss : Imperative.Stmts P C) : Nat := +def Block.sizeOf (ss : Imperative.Block P C) : Nat := match ss with | [] => 1 - | s :: srest => 1 + Stmt.sizeOf s + Stmts.sizeOf srest - -@[simp] -def Block.sizeOf : Imperative.Block P C → Nat - | ⟨ bss ⟩ => 1 + Stmts.sizeOf bss + | s :: srest => 1 + Stmt.sizeOf s + Block.sizeOf srest end instance (P : PureExpr) : SizeOf (Imperative.Stmt P C) where sizeOf := Stmt.sizeOf -instance (P : PureExpr) : SizeOf (Imperative.Stmts P C) where - sizeOf := Stmts.sizeOf - instance (P : PureExpr) : SizeOf (Imperative.Block P C) where sizeOf := Block.sizeOf @@ -88,19 +112,19 @@ mutual /-- Does statement `s` contain any block labeled `label`? -/ def Stmt.hasLabelInside (label : String) (s : Stmt P C) : Bool := match s with - | .block label' ⟨ bss ⟩ _ => label = label' || Stmts.hasLabelInside label bss - | .ite _ ⟨ tss ⟩ ⟨ ess ⟩ _ => Stmts.hasLabelInside label tss || Stmts.hasLabelInside label ess + | .block label' bss _ => label = label' || Block.hasLabelInside label bss + | .ite _ tss ess _ => Block.hasLabelInside label tss || Block.hasLabelInside label ess | _ => false termination_by (Stmt.sizeOf s) /-- Do statements `ss` contain any block labeled `label`? -/ -def Stmts.hasLabelInside (label : String) (ss : List (Stmt P C)) : Bool := +def Block.hasLabelInside (label : String) (ss : List (Stmt P C)) : Bool := match ss with | [] => false - | s :: ss => Stmt.hasLabelInside label s || Stmts.hasLabelInside label ss - termination_by (Stmts.sizeOf ss) + | s :: ss => Stmt.hasLabelInside label s || Block.hasLabelInside label ss + termination_by (Block.sizeOf ss) end --------------------------------------------------------------------- @@ -112,17 +136,17 @@ mutual def Stmt.getVars [HasVarsPure P P.Expr] [HasVarsPure P C] (s : Stmt P C) : List P.Ident := match s with | .cmd cmd => HasVarsPure.getVars cmd - | .block _ ⟨ bss ⟩ _ => Stmts.getVars bss - | .ite _ ⟨ tbss ⟩ ⟨ ebss ⟩ _ => Stmts.getVars tbss ++ Stmts.getVars ebss - | .loop _ _ _ ⟨ bss ⟩ _ => Stmts.getVars bss + | .block _ bss _ => Block.getVars bss + | .ite _ tbss ebss _ => Block.getVars tbss ++ Block.getVars ebss + | .loop _ _ _ bss _ => Block.getVars bss | .goto _ _ => [] termination_by (Stmt.sizeOf s) -def Stmts.getVars [HasVarsPure P P.Expr] [HasVarsPure P C] (ss : Stmts P C) : List P.Ident := +def Block.getVars [HasVarsPure P P.Expr] [HasVarsPure P C] (ss : Block P C) : List P.Ident := match ss with | [] => [] - | s :: srest => Stmt.getVars s ++ Stmts.getVars srest - termination_by (Stmts.sizeOf ss) + | s :: srest => Stmt.getVars s ++ Block.getVars srest + termination_by (Block.sizeOf ss) end instance (P : PureExpr) [HasVarsPure P P.Expr] [HasVarsPure P C] @@ -130,24 +154,24 @@ instance (P : PureExpr) [HasVarsPure P P.Expr] [HasVarsPure P C] getVars := Stmt.getVars instance (P : PureExpr) [HasVarsPure P P.Expr] [HasVarsPure P C] - : HasVarsPure P (Stmts P C) where - getVars := Stmts.getVars + : HasVarsPure P (Block P C) where + getVars := Block.getVars mutual /-- Get all variables defined by the statement `s`. -/ def Stmt.definedVars [HasVarsImp P C] (s : Stmt P C) : List P.Ident := match s with | .cmd cmd => HasVarsImp.definedVars cmd - | .block _ ⟨ bss ⟩ _ => Stmts.definedVars bss - | .ite _ ⟨ tbss ⟩ ⟨ ebss ⟩ _ => Stmts.definedVars tbss ++ Stmts.definedVars ebss + | .block _ bss _ => Block.definedVars bss + | .ite _ tbss ebss _ => Block.definedVars tbss ++ Block.definedVars ebss | _ => [] termination_by (Stmt.sizeOf s) -def Stmts.definedVars [HasVarsImp P C] (ss : Stmts P C) : List P.Ident := +def Block.definedVars [HasVarsImp P C] (ss : Block P C) : List P.Ident := match ss with | [] => [] - | s :: srest => Stmt.definedVars s ++ Stmts.definedVars srest - termination_by (Stmts.sizeOf ss) + | s :: srest => Stmt.definedVars s ++ Block.definedVars srest + termination_by (Block.sizeOf ss) end mutual @@ -156,16 +180,16 @@ def Stmt.modifiedVars [HasVarsImp P C] (s : Stmt P C) : List P.Ident := match s with | .cmd cmd => HasVarsImp.modifiedVars cmd | .goto _ _ => [] - | .block _ ⟨ bss ⟩ _ => Stmts.modifiedVars bss - | .ite _ ⟨ tbss ⟩ ⟨ ebss ⟩ _ => Stmts.modifiedVars tbss ++ Stmts.modifiedVars ebss - | .loop _ _ _ ⟨ bss ⟩ _ => Stmts.modifiedVars bss + | .block _ bss _ => Block.modifiedVars bss + | .ite _ tbss ebss _ => Block.modifiedVars tbss ++ Block.modifiedVars ebss + | .loop _ _ _ bss _ => Block.modifiedVars bss termination_by (Stmt.sizeOf s) -def Stmts.modifiedVars [HasVarsImp P C] (ss : Stmts P C) : List P.Ident := +def Block.modifiedVars [HasVarsImp P C] (ss : Block P C) : List P.Ident := match ss with | [] => [] - | s :: srest => Stmt.modifiedVars s ++ Stmts.modifiedVars srest - termination_by (Stmts.sizeOf ss) + | s :: srest => Stmt.modifiedVars s ++ Block.modifiedVars srest + termination_by (Block.sizeOf ss) end mutual @@ -175,17 +199,17 @@ mutual @[simp] def Stmt.touchedVars [HasVarsImp P C] (s : Stmt P C) : List P.Ident := match s with - | .block _ ⟨ bss ⟩ _ => Stmts.touchedVars bss - | .ite _ ⟨ tbss ⟩ ⟨ ebss ⟩ _ => Stmts.touchedVars tbss ++ Stmts.touchedVars ebss + | .block _ bss _ => Block.touchedVars bss + | .ite _ tbss ebss _ => Block.touchedVars tbss ++ Block.touchedVars ebss | _ => Stmt.definedVars s ++ Stmt.modifiedVars s termination_by (Stmt.sizeOf s) @[simp] -def Stmts.touchedVars [HasVarsImp P C] (ss : Stmts P C) : List P.Ident := +def Block.touchedVars [HasVarsImp P C] (ss : Block P C) : List P.Ident := match ss with | [] => [] - | s :: srest => Stmt.touchedVars s ++ Stmts.touchedVars srest - termination_by (Stmts.sizeOf ss) + | s :: srest => Stmt.touchedVars s ++ Block.touchedVars srest + termination_by (Block.sizeOf ss) end instance (P : PureExpr) [HasVarsImp P C] : HasVarsImp P (Stmt P C) where @@ -194,11 +218,11 @@ instance (P : PureExpr) [HasVarsImp P C] : HasVarsImp P (Stmt P C) where -- order matters for Havoc, so needs to override the default touchedVars := Stmt.touchedVars -instance (P : PureExpr) [HasVarsImp P C] : HasVarsImp P (Stmts P C) where - definedVars := Stmts.definedVars - modifiedVars := Stmts.modifiedVars +instance (P : PureExpr) [HasVarsImp P C] : HasVarsImp P (Block P C) where + definedVars := Block.definedVars + modifiedVars := Block.modifiedVars -- order matters for Havoc, so needs to override the default - touchedVars := Stmts.touchedVars + touchedVars := Block.touchedVars --------------------------------------------------------------------- @@ -211,22 +235,22 @@ partial def formatStmt (P : PureExpr) (s : Stmt P C) [ToFormat P.Ident] [ToFormat P.Expr] [ToFormat P.Ty] [ToFormat C] : Format := match s with | .cmd cmd => format cmd - | .block label bl md => f!"{md}{label} : " ++ Format.bracket "{" f!"{formatStmts P bl.ss}" "}" + | .block label bl md => f!"{md}{label} : " ++ Format.bracket "{" f!"{formatBlock P bl}" "}" | .ite cond th el md => f!"{md}if {cond} then " ++ - Format.bracket "{" f!"{formatStmts P th.ss}" "}" ++ + Format.bracket "{" f!"{formatBlock P th}" "}" ++ f!"{Format.line}else" ++ - Format.bracket "{" f!"{formatStmts P el.ss}" "}" + Format.bracket "{" f!"{formatBlock P el}" "}" | .loop guard measure invariant body md => f!"{md}while ({guard}) ({measure}) ({invariant}) " ++ - Format.bracket "{" f!"{formatStmts P body.ss}" "}" + Format.bracket "{" f!"{formatBlock P body}" "}" | .goto label md => f!"{md}goto {label}" -partial def formatStmts (P : PureExpr) (ss : List (Stmt P C)) +partial def formatBlock (P : PureExpr) (ss : List (Stmt P C)) [ToFormat P.Ident] [ToFormat P.Expr] [ToFormat P.Ty] [ToFormat C] : Format := match ss with | [] => f!"" | s :: rest => formatStmt P s ++ if rest.isEmpty then f!"" - else f!"\n{formatStmts P rest}" + else f!"\n{formatBlock P rest}" end instance [ToFormat P.Ident] [ToFormat P.Expr] [ToFormat P.Ty] @@ -239,7 +263,7 @@ instance [ToFormat P.Ident] [ToFormat P.Expr] [ToFormat P.Ty] [ToFormat C] instance [ToFormat P.Ident] [ToFormat P.Expr] [ToFormat P.Ty] [ToFormat C] : ToFormat (List (Stmt P C)) where - format ss := formatStmts P ss + format ss := formatBlock P ss --------------------------------------------------------------------- diff --git a/Strata/DL/Imperative/StmtSemantics.lean b/Strata/DL/Imperative/StmtSemantics.lean index 2dbdade542..7264f6982f 100644 --- a/Strata/DL/Imperative/StmtSemantics.lean +++ b/Strata/DL/Imperative/StmtSemantics.lean @@ -54,39 +54,32 @@ inductive EvalStmt (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) -- (TODO): Define semantics of `goto`. -inductive EvalStmts (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) +inductive EvalBlock (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : SemanticEval P → SemanticStore P → List (Stmt P Cmd) → SemanticStore P → Prop where | stmts_none_sem : - EvalStmts P _ _ δ σ [] σ + EvalBlock P _ _ δ σ [] σ | stmts_some_sem : EvalStmt P Cmd EvalCmd δ σ s σ' → - EvalStmts P Cmd EvalCmd δ σ' ss σ'' → - EvalStmts P Cmd EvalCmd δ σ (s :: ss) σ'' - -inductive EvalBlock (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) - [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - SemanticEval P → SemanticStore P → Block P Cmd → SemanticStore P → Prop where - | block_sem : - EvalStmts P Cmd EvalCmd δ σ b.ss σ' → - EvalBlock P Cmd EvalCmd δ σ b σ' + EvalBlock P Cmd EvalCmd δ σ' ss σ'' → + EvalBlock P Cmd EvalCmd δ σ (s :: ss) σ'' end theorem eval_stmts_singleton [HasVarsImp P (List (Stmt P (Cmd P)))] [HasVarsImp P (Cmd P)] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P (Cmd P) (EvalCmd P) δ σ [cmd] σ' ↔ + EvalBlock P (Cmd P) (EvalCmd P) δ σ [cmd] σ' ↔ EvalStmt P (Cmd P) (EvalCmd P) δ σ cmd σ' := by constructor <;> intro Heval cases Heval with | @stmts_some_sem _ _ _ σ1 _ _ Heval Hempty => cases Hempty; assumption - apply EvalStmts.stmts_some_sem Heval (EvalStmts.stmts_none_sem) + apply EvalBlock.stmts_some_sem Heval (EvalBlock.stmts_none_sem) theorem eval_stmts_concat [HasVarsImp P (List (Stmt P (Cmd P)))] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P (Cmd P) (EvalCmd P) δ σ cmds1 σ' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ' cmds2 σ'' → - EvalStmts P (Cmd P) (EvalCmd P) δ σ (cmds1 ++ cmds2) σ'' := by + EvalBlock P (Cmd P) (EvalCmd P) δ σ cmds1 σ' → + EvalBlock P (Cmd P) (EvalCmd P) δ σ' cmds2 σ'' → + EvalBlock P (Cmd P) (EvalCmd P) δ σ (cmds1 ++ cmds2) σ'' := by intro Heval1 Heval2 induction cmds1 generalizing cmds2 σ simp only [List.nil_append] @@ -94,7 +87,7 @@ theorem eval_stmts_concat assumption rename_i cmd cmds ind cases Heval1 - apply EvalStmts.stmts_some_sem (by assumption) + apply EvalBlock.stmts_some_sem (by assumption) apply ind (by assumption) (by assumption) theorem EvalCmdDefMonotone [HasFvar P] [HasBool P] [HasNot P] : @@ -107,10 +100,10 @@ theorem EvalCmdDefMonotone [HasFvar P] [HasBool P] [HasNot P] : next _ _ Hup => exact UpdateStateDefMonotone Hdef Hup next _ _ Hup => exact UpdateStateDefMonotone Hdef Hup -theorem EvalStmtsEmpty {P : PureExpr} {Cmd : Type} {EvalCmd : EvalCmdParam P Cmd} +theorem EvalBlockEmpty {P : PureExpr} {Cmd : Type} {EvalCmd : EvalCmdParam P Cmd} { σ σ': SemanticStore P } { δ : SemanticEval P } [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P Cmd EvalCmd δ σ ([]: (List (Stmt P Cmd))) σ' → σ = σ' := by + EvalBlock P Cmd EvalCmd δ σ ([]: (List (Stmt P Cmd))) σ' → σ = σ' := by intros H; cases H <;> simp mutual @@ -125,39 +118,37 @@ theorem EvalStmtDefMonotone | .cmd c => cases Heval; next Hwf Hup => exact EvalCmdDefMonotone Hdef Hup - | .block l ⟨ bss ⟩ _ => - cases Heval; next Hwf Hup => cases Hup; next Hup => - apply EvalStmtsDefMonotone (ss:=bss) <;> try assumption - | .ite c ⟨ tss ⟩ ⟨ bss ⟩ _ => cases Heval with + | .block l bss _ => + cases Heval; next Hwf Hup => + apply EvalBlockDefMonotone <;> assumption + | .ite c tss bss _ => cases Heval with | ite_true_sem Hsome Hwf Heval => - cases Heval; next Heval => - apply EvalStmtsDefMonotone (ss:=tss) <;> try assumption + apply EvalBlockDefMonotone <;> assumption | ite_false_sem Hsome Hwf Heval => - cases Heval; next Heval => - apply EvalStmtsDefMonotone (ss:=bss) <;> try assumption + apply EvalBlockDefMonotone <;> assumption | .goto _ _ => cases Heval | .loop _ _ _ _ _ => cases Heval termination_by (Stmt.sizeOf s) decreasing_by all_goals simp [*] at * <;> omega -theorem EvalStmtsDefMonotone +theorem EvalBlockDefMonotone [HasVal P] [HasFvar P] [HasBool P] [HasBoolVal P] [HasNot P] : isDefined σ v → - EvalStmts P (Cmd P) (EvalCmd P) δ σ ss σ' → + EvalBlock P (Cmd P) (EvalCmd P) δ σ ss σ' → isDefined σ' v := by intros Hdef Heval cases ss with | nil => - have Heq := EvalStmtsEmpty Heval + have Heq := EvalBlockEmpty Heval simp [← Heq] assumption | cons h t => cases Heval <;> try assumption next σ1 Heval1 Heval2 => - apply EvalStmtsDefMonotone (σ:=σ1) + apply EvalBlockDefMonotone (σ:=σ1) apply EvalStmtDefMonotone <;> assumption assumption - termination_by (Stmts.sizeOf ss) + termination_by (Block.sizeOf ss) decreasing_by all_goals simp [*] at * <;> omega end diff --git a/Strata/DL/Imperative/StmtSemanticsSmallStep.lean b/Strata/DL/Imperative/StmtSemanticsSmallStep.lean index 12abe26196..3c3d60cf70 100644 --- a/Strata/DL/Imperative/StmtSemanticsSmallStep.lean +++ b/Strata/DL/Imperative/StmtSemanticsSmallStep.lean @@ -52,7 +52,7 @@ inductive StepStmt /-- Block: a labeled block steps to its statement list -/ | step_block : StepStmt P EvalCmd δ σ - (.stmt (.block _ ⟨ss⟩ _) σ) + (.stmt (.block _ ss _) σ) (.stmts ss σ) /-- Conditional (true): if condition evaluates to true, step to then-branch -/ @@ -61,7 +61,7 @@ inductive StepStmt WellFormedSemanticEvalBool δ → ---- StepStmt P EvalCmd δ σ - (.stmt (.ite c ⟨tss⟩ ⟨ess⟩ _) σ) + (.stmt (.ite c tss ess _) σ) (.stmts tss σ) /-- Conditional (false): if condition evaluates to false, step to else-branch -/ @@ -70,7 +70,7 @@ inductive StepStmt WellFormedSemanticEvalBool δ → ---- StepStmt P EvalCmd δ σ - (.stmt (.ite c ⟨tss⟩ ⟨ess⟩ _) σ) + (.stmt (.ite c tss ess _) σ) (.stmts ess σ) /-- Loop (guard true): if guard is true, execute body then loop again -/ @@ -79,8 +79,8 @@ inductive StepStmt WellFormedSemanticEvalBool δ → ---- StepStmt P EvalCmd δ σ - (.stmt (.loop g m inv ⟨body⟩ md) σ) - (.stmts (body ++ [.loop g m inv ⟨body⟩ md]) σ) + (.stmt (.loop g m inv body md) σ) + (.stmts (body ++ [.loop g m inv body md]) σ) /-- Loop (guard false): if guard is false, terminate the loop -/ | step_loop_exit : @@ -88,7 +88,7 @@ inductive StepStmt WellFormedSemanticEvalBool δ → ---- StepStmt P EvalCmd δ σ - (.stmt (.loop g m inv ⟨body⟩ _) σ) + (.stmt (.loop g m inv body _) σ) (.terminal σ) /- Goto: not implemented, because we plan to remove it. -/ @@ -137,7 +137,7 @@ def EvalStmtSmall [HasBool P] [HasNot P] (EvalCmd : EvalCmdParam P CmdT) (δ : SemanticEval P) - (σ σ : SemanticStore P) + (σ : SemanticStore P) (s : Stmt P CmdT) (σ' : SemanticStore P) : Prop := StepStmtStar P EvalCmd δ σ (.stmt s σ) (.terminal σ') @@ -152,7 +152,7 @@ def EvalStmtsSmall [HasBool P] [HasNot P] (EvalCmd : EvalCmdParam P CmdT) (δ : SemanticEval P) - (σ σ : SemanticStore P) + (σ : SemanticStore P) (ss : List (Stmt P CmdT)) (σ' : SemanticStore P) : Prop := StepStmtStar P EvalCmd δ σ (.stmts ss σ) (.terminal σ') @@ -170,9 +170,9 @@ theorem evalStmtsSmallNil [HasVarsImp P CmdT] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] (δ : SemanticEval P) - (σ σ : SemanticStore P) + (σ : SemanticStore P) (EvalCmd : EvalCmdParam P CmdT) : - EvalStmtsSmall P EvalCmd δ σ σ [] σ := by + EvalStmtsSmall P EvalCmd δ σ [] σ := by unfold EvalStmtsSmall apply StepStmtStar.step · exact StepStmt.step_stmts_nil @@ -202,7 +202,7 @@ theorem terminalIsTerminal [HasVarsImp P (List (Stmt P CmdT))] [HasVarsImp P CmdT] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] - (σ σ : SemanticStore P) + (σ : SemanticStore P) (δ : SemanticEval P) (EvalCmd : EvalCmdParam P CmdT) : IsTerminal P δ σ EvalCmd (.terminal σ) := by diff --git a/Strata/Languages/Boogie/CallGraph.lean b/Strata/Languages/Boogie/CallGraph.lean index fd9d20ee14..8e60228d46 100644 --- a/Strata/Languages/Boogie/CallGraph.lean +++ b/Strata/Languages/Boogie/CallGraph.lean @@ -96,11 +96,11 @@ partial def extractCallsFromStatement (stmt : Statement) : List String := match stmt with | .cmd (.call _ procName _ _) => [procName] | .cmd _ => [] - | .block _ body _ => extractCallsFromStatements body.ss + | .block _ body _ => extractCallsFromStatements body | .ite _ thenBody elseBody _ => - extractCallsFromStatements thenBody.ss ++ - extractCallsFromStatements elseBody.ss - | .loop _ _ _ body _ => extractCallsFromStatements body.ss + extractCallsFromStatements thenBody ++ + extractCallsFromStatements elseBody + | .loop _ _ _ body _ => extractCallsFromStatements body | .goto _ _ => [] /-- Extract procedure calls from a list of statements -/ diff --git a/Strata/Languages/Boogie/DDMTransform/Translate.lean b/Strata/Languages/Boogie/DDMTransform/Translate.lean index bc6e5ac29c..3308ff62cb 100644 --- a/Strata/Languages/Boogie/DDMTransform/Translate.lean +++ b/Strata/Languages/Boogie/DDMTransform/Translate.lean @@ -977,13 +977,13 @@ partial def translateStmt (p : Program) (bindings : TransBindings) (arg : Arg) : let (tss, bindings) ← translateBlock p bindings ta let (fss, bindings) ← translateElse p bindings fa let md ← getOpMetaData op - return ([.ite c { ss := tss } { ss := fss } md], bindings) + return ([.ite c tss fss md], bindings) | q`Boogie.while_statement, #[ca, ia, ba] => let c ← translateExpr p bindings ca let i ← translateInvariant p bindings ia let (bodyss, bindings) ← translateBlock p bindings ba let md ← getOpMetaData op - return ([.loop c .none i { ss := bodyss } md], bindings) + return ([.loop c .none i bodyss md], bindings) | q`Boogie.call_statement, #[lsa, fa, esa] => let ls ← translateCommaSep (translateIdent BoogieIdent) lsa let f ← translateIdent String fa @@ -999,7 +999,7 @@ partial def translateStmt (p : Program) (bindings : TransBindings) (arg : Arg) : let l ← translateIdent String la let (ss, bindings) ← translateBlock p bindings ba let md ← getOpMetaData op - return ([.block l { ss := ss } md], bindings) + return ([.block l ss md], bindings) | q`Boogie.goto_statement, #[la] => let l ← translateIdent String la let md ← getOpMetaData op diff --git a/Strata/Languages/Boogie/ProcedureType.lean b/Strata/Languages/Boogie/ProcedureType.lean index 8c52d91a39..60ce5d96bb 100644 --- a/Strata/Languages/Boogie/ProcedureType.lean +++ b/Strata/Languages/Boogie/ProcedureType.lean @@ -47,8 +47,8 @@ def typeCheck (C: Boogie.Expression.TyContext) (Env : Boogie.Expression.TyEnv) ( clause must exist in the context! \ Modifies: {proc.spec.modifies}" else do - let modifiedVars := (Imperative.Stmts.modifiedVars proc.body).eraseDups - let definedVars := (Imperative.Stmts.definedVars proc.body).eraseDups + let modifiedVars := (Imperative.Block.modifiedVars proc.body).eraseDups + let definedVars := (Imperative.Block.definedVars proc.body).eraseDups let allowedVars := proc.header.outputs.keys ++ proc.spec.modifies ++ definedVars if modifiedVars.any (fun v => v ∉ allowedVars) then .error f!"[{proc.header.name}]: This procedure modifies variables it is not allowed to!\n\ diff --git a/Strata/Languages/Boogie/Statement.lean b/Strata/Languages/Boogie/Statement.lean index 21da02779a..ce91d1c58f 100644 --- a/Strata/Languages/Boogie/Statement.lean +++ b/Strata/Languages/Boogie/Statement.lean @@ -111,15 +111,15 @@ mutual def Statement.eraseTypes (s : Statement) : Statement := match s with | .cmd c => .cmd (Command.eraseTypes c) - | .block label ⟨ bss ⟩ md => + | .block label bss md => let ss' := Statements.eraseTypes bss - .block label { ss := ss' } md - | .ite cond ⟨ tss ⟩ ⟨ ess ⟩ md => - let thenb' := { ss := Statements.eraseTypes tss } - let elseb' := { ss := Statements.eraseTypes ess } + .block label ss' md + | .ite cond tss ess md => + let thenb' := Statements.eraseTypes tss + let elseb' := Statements.eraseTypes ess .ite cond thenb' elseb' md - | .loop guard measure invariant ⟨ bss ⟩ md => - let body' := { ss := Statements.eraseTypes bss } + | .loop guard measure invariant bss md => + let body' := Statements.eraseTypes bss .loop guard measure invariant body' md | .goto l md => .goto l md termination_by (Stmt.sizeOf s) @@ -168,10 +168,10 @@ instance : HasVarsImp Expression Statement where touchedVars := Stmt.touchedVars instance : HasVarsImp Expression (List Statement) where - definedVars := Stmts.definedVars - modifiedVars := Stmts.modifiedVars + definedVars := Block.definedVars + modifiedVars := Block.modifiedVars -- order matters for Havoc, so needs to override the default - touchedVars := Stmts.touchedVars + touchedVars := Block.touchedVars --------------------------------------------------------------------- @@ -194,10 +194,10 @@ def Statement.modifiedVarsTrans : List Expression.Ident := match s with | .cmd cmd => Command.modifiedVarsTrans π cmd | .goto _ _ => [] - | .block _ ⟨ bss ⟩ _ => Statements.modifiedVarsTrans π bss - | .ite _ ⟨ tbss ⟩ ⟨ ebss ⟩ _ => + | .block _ bss _ => Statements.modifiedVarsTrans π bss + | .ite _ tbss ebss _ => Statements.modifiedVarsTrans π tbss ++ Statements.modifiedVarsTrans π ebss - | .loop _ _ _ ⟨ bss ⟩ _ => + | .loop _ _ _ bss _ => Statements.modifiedVarsTrans π bss termination_by (Stmt.sizeOf s) @@ -208,7 +208,7 @@ def Statements.modifiedVarsTrans : List Expression.Ident := match ss with | [] => [] | s :: ss => Statement.modifiedVarsTrans π s ++ Statements.modifiedVarsTrans π ss - termination_by (Stmts.sizeOf ss) + termination_by (Block.sizeOf ss) end def Command.getVarsTrans @@ -232,10 +232,10 @@ def Statement.getVarsTrans : List Expression.Ident := match s with | .cmd cmd => Command.getVarsTrans π cmd | .goto _ _ => [] - | .block _ ⟨ bss ⟩ _ => Statements.getVarsTrans π bss - | .ite _ ⟨ tbss ⟩ ⟨ ebss ⟩ _ => + | .block _ bss _ => Statements.getVarsTrans π bss + | .ite _ tbss ebss _ => Statements.getVarsTrans π tbss ++ Statements.getVarsTrans π ebss - | .loop _ _ _ ⟨ bss ⟩ _ => + | .loop _ _ _ bss _ => Statements.getVarsTrans π bss termination_by (Stmt.sizeOf s) @@ -246,7 +246,7 @@ def Statements.getVarsTrans : List Expression.Ident := match ss with | [] => [] | s :: ss => Statement.getVarsTrans π s ++ Statements.getVarsTrans π ss - termination_by (Stmts.sizeOf ss) + termination_by (Block.sizeOf ss) end -- don't need to transitively lookup for procedures @@ -265,7 +265,7 @@ def Statement.definedVarsTrans -- since call statement does not define any new variables def Statements.definedVarsTrans (_ : String → Option ProcType) (s : Statements) := - Stmts.definedVars s + Block.definedVars s mutual /-- get all variables touched by the statement `s`. -/ @@ -277,9 +277,9 @@ def Statement.touchedVarsTrans match s with | .cmd cmd => Command.definedVarsTrans π cmd ++ Command.modifiedVarsTrans π cmd | .goto _ _ => [] - | .block _ ⟨ bss ⟩ _ => Statements.touchedVarsTrans π bss - | .ite _ ⟨ tbss ⟩ ⟨ ebss ⟩ _ => Statements.touchedVarsTrans π tbss ++ Statements.touchedVarsTrans π ebss - | .loop _ _ _ ⟨ bss ⟩ _ => Statements.touchedVarsTrans π bss + | .block _ bss _ => Statements.touchedVarsTrans π bss + | .ite _ tbss ebss _ => Statements.touchedVarsTrans π tbss ++ Statements.touchedVarsTrans π ebss + | .loop _ _ _ bss _ => Statements.touchedVarsTrans π bss termination_by (Stmt.sizeOf s) def Statements.touchedVarsTrans @@ -290,7 +290,7 @@ def Statements.touchedVarsTrans match ss with | [] => [] | s :: srest => Statement.touchedVarsTrans π s ++ Statements.touchedVarsTrans π srest - termination_by (Stmts.sizeOf ss) + termination_by (Block.sizeOf ss) end def Statement.allVarsTrans @@ -309,7 +309,7 @@ def Statements.allVarsTrans mutual partial def Block.substFvar (b : Block) (fr:Expression.Ident) (to:Expression.Expr) : Block := - { b with ss := List.map (fun s => Statement.substFvar s fr to) b.ss } + List.map (fun s => Statement.substFvar s fr to) b partial def Statement.substFvar (s : Boogie.Statement) (fr:Expression.Ident) @@ -346,7 +346,7 @@ end mutual partial def Block.renameLhs (b : Block) (fr: Lambda.Identifier Visibility) (to: Lambda.Identifier Visibility) : Block := - { b with ss := List.map (fun s => Statement.renameLhs s fr to) b.ss } + List.map (fun s => Statement.renameLhs s fr to) b partial def Statement.renameLhs (s : Boogie.Statement) (fr: Lambda.Identifier Visibility) (to: Lambda.Identifier Visibility) diff --git a/Strata/Languages/Boogie/StatementEval.lean b/Strata/Languages/Boogie/StatementEval.lean index 67d417dc58..8ef9bfde51 100644 --- a/Strata/Languages/Boogie/StatementEval.lean +++ b/Strata/Languages/Boogie/StatementEval.lean @@ -194,7 +194,7 @@ def processGoto : Statements → Option String → (Statements × Option String) def evalAux (E : Env) (old_var_subst : SubstMap) (ss : Statements) (optLabel : Option String) : List EnvWithNext := open LTy.Syntax in - go (Imperative.Stmts.sizeOf ss) (EnvWithNext.mk E .none []) ss optLabel + go (Imperative.Block.sizeOf ss) (EnvWithNext.mk E .none []) ss optLabel where go steps Ewn ss optLabel := match steps, Ewn.env.error with | _, some _ => [{Ewn with nextLabel := .none}] @@ -214,7 +214,7 @@ def evalAux (E : Env) (old_var_subst : SubstMap) (ss : Statements) (optLabel : O env := E, nextLabel := .none }] - | .block label { ss } md => + | .block label ss md => let orig_stk := Ewn.stk let Ewn := { Ewn with env := Ewn.env.pushEmptyScope, stk := orig_stk.push [] } @@ -224,11 +224,11 @@ def evalAux (E : Env) (old_var_subst : SubstMap) (ss : Statements) (optLabel : O { ewn with env := ewn.env.popScope, stk := let ss' := ewn.stk.top - let s' := Imperative.Stmt.block label { ss := ss' } md + let s' := Imperative.Stmt.block label ss' md orig_stk.appendToTop [s'] }) Ewns - | .ite cond { ss := then_ss } { ss := else_ss } md => + | .ite cond then_ss else_ss md => let orig_stk := Ewn.stk let Ewn := { Ewn with stk := orig_stk.push [] } let cond' := Ewn.env.exprEval cond @@ -238,7 +238,7 @@ def evalAux (E : Env) (old_var_subst : SubstMap) (ss : Statements) (optLabel : O let Ewns := Ewns.map (fun (ewn : EnvWithNext) => let ss' := ewn.stk.top - let s' := Imperative.Stmt.ite cond' { ss := ss' } { ss := [] } md + let s' := Imperative.Stmt.ite cond' ss' [] md { ewn with stk := orig_stk.appendToTop [s']}) Ewns | .false _ => @@ -246,7 +246,7 @@ def evalAux (E : Env) (old_var_subst : SubstMap) (ss : Statements) (optLabel : O let Ewns := Ewns.map (fun (ewn : EnvWithNext) => let ss' := ewn.stk.top - let s' := Imperative.Stmt.ite cond' { ss := [] } { ss := ss' } md + let s' := Imperative.Stmt.ite cond' [] ss' md { ewn with stk := orig_stk.appendToTop [s']}) Ewns | _ => @@ -266,19 +266,19 @@ def evalAux (E : Env) (old_var_subst : SubstMap) (ss : Statements) (optLabel : O -- with no next label, we can merge both states into one. | [{ stk := stk_t, env := E_t, nextLabel := .none}], [{ stk := stk_f, env := E_f, nextLabel := .none}] => - let s' := Imperative.Stmt.ite cond' { ss := stk_t.top } { ss := stk_f.top } md + let s' := Imperative.Stmt.ite cond' stk_t.top stk_f.top md [EnvWithNext.mk (Env.merge cond' E_t E_f).popScope .none (orig_stk.appendToTop [s'])] | _, _ => let Ewns_t := Ewns_t.map (fun (ewn : EnvWithNext) => - let s' := Imperative.Stmt.ite (LExpr.true ()) { ss := ewn.stk.top } { ss := [] } md + let s' := Imperative.Stmt.ite (LExpr.true ()) ewn.stk.top [] md { ewn with env := ewn.env.popScope, stk := orig_stk.appendToTop [s']}) let Ewns_f := Ewns_f.map (fun (ewn : EnvWithNext) => - let s' := Imperative.Stmt.ite (LExpr.false ()) { ss := [] } { ss := ewn.stk.top } md + let s' := Imperative.Stmt.ite (LExpr.false ()) [] ewn.stk.top md { ewn with env := ewn.env.popScope, stk := orig_stk.appendToTop [s']}) Ewns_t ++ Ewns_f diff --git a/Strata/Languages/Boogie/StatementSemantics.lean b/Strata/Languages/Boogie/StatementSemantics.lean index e744c02d09..df2a74ef40 100644 --- a/Strata/Languages/Boogie/StatementSemantics.lean +++ b/Strata/Languages/Boogie/StatementSemantics.lean @@ -187,7 +187,7 @@ inductive EvalCommand : (String → Option Procedure) → BoogieEval → follows; wish this error message actually mentioned which local variable was the problematic one. - invalid nested inductive datatype 'Imperative.EvalStmts', nested inductive + invalid nested inductive datatype 'Imperative.EvalBlock', nested inductive datatypes parameters cannot contain local variables. Here's a Zulip thread that can shed some light on this error message: @@ -216,7 +216,7 @@ inductive EvalCommand : (String → Option Procedure) → BoogieEval → (∀ pre, (Procedure.Spec.getCheckExprs p.spec.preconditions).contains pre → isDefinedOver (HasVarsPure.getVars) σAO pre ∧ δ σAO pre = .some HasBool.tt) → - @Imperative.EvalStmts Expression Command (EvalCommand π) _ _ _ _ _ _ δ σAO p.body σR → + @Imperative.EvalBlock Expression Command (EvalCommand π) _ _ _ _ _ _ δ σAO p.body σR → -- Postconditions, if any, must be satisfied for execution to continue. (∀ post, (Procedure.Spec.getCheckExprs p.spec.postconditions).contains post → isDefinedOver (HasVarsPure.getVars) σAO post ∧ @@ -233,7 +233,7 @@ abbrev EvalStatement (π : String → Option Procedure) : BoogieEval → abbrev EvalStatements (π : String → Option Procedure) : BoogieEval → BoogieStore → List Statement → BoogieStore → Prop := - Imperative.EvalStmts Expression Command (EvalCommand π) + Imperative.EvalBlock Expression Command (EvalCommand π) inductive EvalCommandContract : (String → Option Procedure) → BoogieEval → BoogieStore → Command → BoogieStore → Prop where @@ -282,4 +282,4 @@ abbrev EvalStatementContract (π : String → Option Procedure) : BoogieEval → abbrev EvalStatementsContract (π : String → Option Procedure) : BoogieEval → BoogieStore → List Statement → BoogieStore → Prop := - Imperative.EvalStmts Expression Command (EvalCommandContract π) + Imperative.EvalBlock Expression Command (EvalCommandContract π) diff --git a/Strata/Languages/Boogie/StatementSemanticsProps.lean b/Strata/Languages/Boogie/StatementSemanticsProps.lean index f3d82f71d3..4c01ca29fc 100644 --- a/Strata/Languages/Boogie/StatementSemanticsProps.lean +++ b/Strata/Languages/Boogie/StatementSemanticsProps.lean @@ -39,10 +39,10 @@ theorem TouchVarsEmpty : @TouchVars P σ [] σ' → σ = σ' := by intros H; cases H <;> simp -theorem EvalStmtsEmpty {P : PureExpr} {Cmd : Type} {EvalCmd : EvalCmdParam P Cmd} +theorem EvalBlockEmpty {P : PureExpr} {Cmd : Type} {EvalCmd : EvalCmdParam P Cmd} { σ σ': SemanticStore P } { δ : SemanticEval P } [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - EvalStmts P Cmd EvalCmd δ σ ([]: (List (Stmt P Cmd))) σ' → σ = σ' := by + EvalBlock P Cmd EvalCmd δ σ ([]: (List (Stmt P Cmd))) σ' → σ = σ' := by intros H; cases H <;> simp theorem EvalStatementsEmpty : @@ -1319,7 +1319,7 @@ theorem EvalStatementsContractApp' : induction ss₁ generalizing σ <;> simp_all case nil => exists σ <;> simp_all - exact EvalStmts.stmts_none_sem + exact EvalBlock.stmts_none_sem case cons h t ih => cases Heval with | stmts_some_sem Hh Ht => @@ -1329,7 +1329,7 @@ theorem EvalStatementsContractApp' : | intro σ'' Heval => exists σ'' simp_all - exact EvalStmts.stmts_some_sem Hh Heval.1 + exact EvalBlock.stmts_some_sem Hh Heval.1 theorem EvalStatementsContractApp : EvalStatementsContract π δ σ ss₁ σ' → @@ -1367,7 +1367,7 @@ theorem EvalStatementsApp : next s σ₁ ss => constructor <;> try assumption simp [sizeOf] at * - have Hsz : Stmts.sizeOf (ss ++ ss₂) = n - 1 - s.sizeOf := by omega + have Hsz : Block.sizeOf (ss ++ ss₂) = n - 1 - s.sizeOf := by omega apply ih _ (by omega) ss ss₂ σ₁ σ' σ'' Hsz assumption assumption @@ -2041,13 +2041,13 @@ EvalCommandContract π δ σ c σ' := by /-- NOTE: should follow the same approach as `DetToNondetCorrect` to prove this mutually recursive theorem due to meta variable bug -/ -theorem EvalStmtsRefinesContract : - EvalStmts Expression Command (EvalCommand π) δ σ ss σ' → - EvalStmts Expression Command (EvalCommandContract π) δ σ ss σ' := by +theorem EvalBlockRefinesContract : + EvalBlock Expression Command (EvalCommand π) δ σ ss σ' → + EvalBlock Expression Command (EvalCommandContract π) δ σ ss σ' := by intros Heval cases ss case nil => - simp [EvalStmtsEmpty Heval] + simp [EvalBlockEmpty Heval] constructor case cons h t => cases Heval with @@ -2056,9 +2056,9 @@ theorem EvalStmtsRefinesContract : . sorry -- apply EvalStmtRefinesContract -- apply Heval - . apply EvalStmtsRefinesContract + . apply EvalBlockRefinesContract apply Hevals - termination_by (Stmts.sizeOf ss) + termination_by (Block.sizeOf ss) decreasing_by all_goals simp_all <;> omega @@ -2072,19 +2072,13 @@ theorem EvalStmtRefinesContract : exact EvalCommandRefinesContract Hdef | block_sem Heval => constructor - constructor - cases Heval - apply EvalStmtsRefinesContract <;> assumption + apply EvalBlockRefinesContract <;> assumption | ite_true_sem Hdef Hwf Heval => - cases Heval apply EvalStmt.ite_true_sem <;> try assumption - constructor - apply EvalStmtsRefinesContract <;> assumption + apply EvalBlockRefinesContract <;> assumption | ite_false_sem Hdef Hwf Heval => - cases Heval apply EvalStmt.ite_false_sem <;> try assumption - constructor - apply EvalStmtsRefinesContract <;> assumption + apply EvalBlockRefinesContract <;> assumption /-- Currently we cannot prove this theorem, since the WellFormedSemanticEval definition does not assert diff --git a/Strata/Languages/Boogie/StatementType.lean b/Strata/Languages/Boogie/StatementType.lean index 5a6c0bf370..7209d55380 100644 --- a/Strata/Languages/Boogie/StatementType.lean +++ b/Strata/Languages/Boogie/StatementType.lean @@ -84,25 +84,25 @@ where let (c', Env) ← typeCheckCmd C Env P cmd .ok (.cmd c', Env) - | .block label ⟨ bss ⟩ md => do + | .block label bss md => do let Env := Env.pushEmptyContext let (ss', Env) ← go Env bss [] - let s' := .block label ⟨ss'⟩ md + let s' := .block label ss' md .ok (s', Env.popContext) - | .ite cond ⟨ tss ⟩ ⟨ ess ⟩ md => do + | .ite cond tss ess md => do let _ ← Env.freeVarCheck cond f!"[{s}]" let (conda, Env) ← LExpr.resolve C Env cond let condty := conda.toLMonoTy match condty with | .tcons "bool" [] => - let (tb, Env) ← go Env [(.block "$$_then" ⟨ tss ⟩ #[])] [] - let (eb, Env) ← go Env [(.block "$$_else" ⟨ ess ⟩ #[])] [] - let s' := .ite conda.unresolved ⟨tb⟩ ⟨eb⟩ md + let (tb, Env) ← go Env [(.block "$$_then" tss #[])] [] + let (eb, Env) ← go Env [(.block "$$_else" ess #[])] [] + let s' := .ite conda.unresolved tb eb md .ok (s', Env) | _ => .error f!"[{s}]: If's condition {cond} is not of type `bool`!" - | .loop guard measure invariant ⟨ bss ⟩ md => do + | .loop guard measure invariant bss md => do let _ ← Env.freeVarCheck guard f!"[{s}]" let (conda, Env) ← LExpr.resolve C Env guard let condty := conda.toLMonoTy @@ -125,8 +125,8 @@ where | (.tcons "bool" [], some (.tcons "int" []), none) | (.tcons "bool" [], none, some (.tcons "bool" [])) | (.tcons "bool" [], some (.tcons "int" []), some (.tcons "bool" [])) => - let (tb, Env) ← go Env [(.block "$$_loop_body" ⟨bss⟩ #[])] [] - let s' := .loop conda.unresolved (mt.map LExpr.unresolved) (it.map LExpr.unresolved) ⟨tb⟩ md + let (tb, Env) ← go Env [(.block "$$_loop_body" bss #[])] [] + let s' := .loop conda.unresolved (mt.map LExpr.unresolved) (it.map LExpr.unresolved) tb md .ok (s', Env) | _ => match condty with @@ -142,14 +142,14 @@ where | .goto label _ => match op with | .some p => - if Stmts.hasLabelInside label p.body then + if Block.hasLabelInside label p.body then .ok (s, Env) else .error f!"Label {label} does not exist in the body of {p.header.name}" | .none => .error f!"{s} occurs outside a procedure." go Env srest (s' :: acc) - termination_by Stmts.sizeOf ss + termination_by Block.sizeOf ss decreasing_by all_goals simp_wf <;> omega @@ -182,12 +182,12 @@ Apply type substitution `S` to a statement. def Statement.subst (S : Subst) (s : Statement) : Statement := match s with | .cmd cmd => .cmd (Command.subst S cmd) - | .block label ⟨ bss ⟩ md => - .block label ⟨go S bss []⟩ md - | .ite cond ⟨ tss ⟩ ⟨ ess ⟩ md => - .ite (cond.applySubst S) ⟨go S tss []⟩ ⟨go S ess []⟩ md - | .loop guard m i ⟨ bss ⟩ md => - .loop (guard.applySubst S) (substOptionExpr S m) (substOptionExpr S i) ⟨go S bss []⟩ md + | .block label bss md => + .block label (go S bss []) md + | .ite cond tss ess md => + .ite (cond.applySubst S) (go S tss []) (go S ess []) md + | .loop guard m i bss md => + .loop (guard.applySubst S) (substOptionExpr S m) (substOptionExpr S i) (go S bss []) md | .goto _ _ => s where go S ss acc : List Statement := diff --git a/Strata/Languages/C_Simp/C_Simp.lean b/Strata/Languages/C_Simp/C_Simp.lean index e27c148289..e292aa6979 100644 --- a/Strata/Languages/C_Simp/C_Simp.lean +++ b/Strata/Languages/C_Simp/C_Simp.lean @@ -67,7 +67,7 @@ instance [ToFormat Expression.Ident] [ToFormat Expression.Expr] [ToFormat Expres instance [ToFormat Expression.Ident] [ToFormat Expression.Expr] [ToFormat Expression.Ty] [ToFormat Command]: ToFormat (List Statement) where - format ss := Imperative.formatStmts Expression ss + format ss := Imperative.formatBlock Expression ss instance : Std.ToFormat Function where format f := diff --git a/Strata/Languages/C_Simp/DDMTransform/Translate.lean b/Strata/Languages/C_Simp/DDMTransform/Translate.lean index ac5f397d07..8cae3842f3 100644 --- a/Strata/Languages/C_Simp/DDMTransform/Translate.lean +++ b/Strata/Languages/C_Simp/DDMTransform/Translate.lean @@ -384,12 +384,10 @@ partial def translateStmt (bindings : TransBindings) (arg : Arg) : return ([(.cmd (.set id val))], bindings) | q`C_Simp.if_command, #[ca, ta, fa] => let c ← translateExpr bindings ca - let t := { ss := ← translateBlock bindings ta } - let f := { ss := ← translateElse bindings fa } - return ([(.ite c t f)], bindings) + return ([(.ite c (← translateBlock bindings ta) (← translateElse bindings fa))], bindings) | q`C_Simp.while_command, #[ga, measurea, invarianta, ba] => -- TODO: Handle measure and invariant - return ([.loop (← translateExpr bindings ga) (← translateMeasure bindings measurea) (← translateInvariant bindings invarianta) { ss := ← translateBlock bindings ba }], bindings) + return ([.loop (← translateExpr bindings ga) (← translateMeasure bindings measurea) (← translateInvariant bindings invarianta) (← translateBlock bindings ba)], bindings) | q`C_Simp.return, #[_tpa, ea] => -- Return statements are assignments to the global `return` variable -- TODO: I don't think this works if we have functions with different return types diff --git a/Strata/Languages/C_Simp/Verify.lean b/Strata/Languages/C_Simp/Verify.lean index 901c5be835..40e73afd28 100644 --- a/Strata/Languages/C_Simp/Verify.lean +++ b/Strata/Languages/C_Simp/Verify.lean @@ -44,9 +44,9 @@ def translate_cmd (c: C_Simp.Command) : Boogie.Command := partial def translate_stmt (s: Imperative.Stmt C_Simp.Expression C_Simp.Command) : Boogie.Statement := match s with | .cmd c => .cmd (translate_cmd c) - | .block l b _md => .block l {ss := b.ss.map translate_stmt} {} - | .ite cond thenb elseb _md => .ite (translate_expr cond) {ss := thenb.ss.map translate_stmt} {ss := elseb.ss.map translate_stmt} {} - | .loop guard measure invariant body _md => .loop (translate_expr guard) (translate_opt_expr measure) (translate_opt_expr invariant) {ss := body.ss.map translate_stmt} {} + | .block l b _md => .block l (b.map translate_stmt) {} + | .ite cond thenb elseb _md => .ite (translate_expr cond) (thenb.map translate_stmt) (elseb.map translate_stmt) {} + | .loop guard measure invariant body _md => .loop (translate_expr guard) (translate_opt_expr measure) (translate_opt_expr invariant) (body.map translate_stmt) {} | .goto label _md => .goto label {} @@ -75,27 +75,27 @@ def loop_elimination_statement(s : C_Simp.Statement) : Boogie.Statement := match measure, invariant with | .some measure, some invariant => -- let bodyss : := body.ss - let assigned_vars := (Imperative.Stmts.modifiedVars body.ss).map (λ s => ⟨s.name, .unres⟩) - let havocd : Boogie.Statement := .block "loop havoc" {ss:= assigned_vars.map (λ n => Boogie.Statement.havoc n {})} {} + let assigned_vars := (Imperative.Block.modifiedVars body).map (λ s => ⟨s.name, .unres⟩) + let havocd : Boogie.Statement := .block "loop havoc" (assigned_vars.map (λ n => Boogie.Statement.havoc n {})) {} let measure_pos := (.app () (.app () (.op () "Int.Ge" none) (translate_expr measure)) (.intConst () 0)) let entry_invariant : Boogie.Statement := .assert "entry_invariant" (translate_expr invariant) {} let assert_measure_positive : Boogie.Statement := .assert "assert_measure_pos" measure_pos {} - let first_iter_facts : Boogie.Statement := .block "first_iter_asserts" {ss := [entry_invariant, assert_measure_positive]} {} + let first_iter_facts : Boogie.Statement := .block "first_iter_asserts" [entry_invariant, assert_measure_positive] {} - let arbitrary_iter_assumes := .block "arbitrary_iter_assumes" {ss := [(Boogie.Statement.assume "assume_guard" (translate_expr guard) {}), (Boogie.Statement.assume "assume_invariant" (translate_expr invariant) {}), (Boogie.Statement.assume "assume_measure_pos" measure_pos {})]} {} + let arbitrary_iter_assumes := .block "arbitrary_iter_assumes" [(Boogie.Statement.assume "assume_guard" (translate_expr guard) {}), (Boogie.Statement.assume "assume_invariant" (translate_expr invariant) {}), (Boogie.Statement.assume "assume_measure_pos" measure_pos {})] {} let measure_old_value_assign : Boogie.Statement := .init "special-name-for-old-measure-value" (.forAll [] (.tcons "int" [])) (translate_expr measure) {} let measure_decreases : Boogie.Statement := .assert "measure_decreases" (.app () (.app () (.op () "Int.Lt" none) (translate_expr measure)) (.fvar () "special-name-for-old-measure-value" none)) {} let measure_imp_not_guard : Boogie.Statement := .assert "measure_imp_not_guard" (.ite () (.app () (.app () (.op () "Int.Le" none) (translate_expr measure)) (.intConst () 0)) (.app () (.op () "Bool.Not" none) (translate_expr guard)) (.true ())) {} let maintain_invariant : Boogie.Statement := .assert "arbitrary_iter_maintain_invariant" (translate_expr invariant) {} - let body_statements : List Boogie.Statement := body.ss.map translate_stmt - let arbitrary_iter_facts : Boogie.Statement := .block "arbitrary iter facts" {ss := [havocd, arbitrary_iter_assumes, measure_old_value_assign] ++ body_statements ++ [measure_decreases, measure_imp_not_guard, maintain_invariant]} {} + let body_statements : List Boogie.Statement := body.map translate_stmt + let arbitrary_iter_facts : Boogie.Statement := .block "arbitrary iter facts" ([havocd, arbitrary_iter_assumes, measure_old_value_assign] ++ body_statements ++ [measure_decreases, measure_imp_not_guard, maintain_invariant]) {} let not_guard : Boogie.Statement := .assume "not_guard" (.app () (.op () "Bool.Not" none) (translate_expr guard)) {} let invariant : Boogie.Statement := .assume "invariant" (translate_expr invariant) {} - .ite (translate_expr guard) {ss := [first_iter_facts, arbitrary_iter_facts, havocd, not_guard, invariant]} {ss := []} {} + .ite (translate_expr guard) [first_iter_facts, arbitrary_iter_facts, havocd, not_guard, invariant] [] {} | _, _ => panic! "Loop elimination require measure and invariant" | _ => translate_stmt s diff --git a/Strata/Languages/Python/PythonToBoogie.lean b/Strata/Languages/Python/PythonToBoogie.lean index 7a57f55031..35e9609272 100644 --- a/Strata/Languages/Python/PythonToBoogie.lean +++ b/Strata/Languages/Python/PythonToBoogie.lean @@ -254,7 +254,7 @@ def argsAndKWordsToCanonicalList (func_infos : List PythonFunctionDecl) def handleCallThrow (jmp_target : String) : Boogie.Statement := let cond := .eq () (.app () (.op () "ExceptOrNone_tag" none) (.fvar () "maybe_except" none)) (.op () "EN_STR_TAG" none) - .ite cond {ss := [.goto jmp_target]} {ss := []} + .ite cond [.goto jmp_target] [] -- TODO: handle rest of names def PyListStrToBoogie (names : Array (Python.alias SourceRange)) : Boogie.Expression.Expr := @@ -341,7 +341,7 @@ partial def exceptHandlersToBoogie (jmp_targets: List String) (func_infos : List [.set "exception_ty_matches" (.boolConst () false)] let cond := .fvar () "exception_ty_matches" none let body_if_matches := body.val.toList.flatMap (PyStmtToBoogie jmp_targets func_infos) ++ [.goto jmp_targets[1]!] - set_ex_ty_matches ++ [.ite cond {ss := body_if_matches} {ss := []}] + set_ex_ty_matches ++ [.ite cond body_if_matches []] partial def handleFunctionCall (lhs: List Boogie.Expression.Ident) (fname: String) @@ -373,7 +373,7 @@ partial def handleComprehension (lhs: Python.expr SourceRange) (gen: Array (Pyth let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) res.expr) (.intConst () 0)) let then_ss: List Boogie.Statement := [.havoc (PyExprToString lhs)] let else_ss: List Boogie.Statement := [.set (PyExprToString lhs) (.op () "ListStr_nil" none)] - res.stmts ++ [.ite guard {ss := then_ss} {ss := else_ss}] + res.stmts ++ [.ite guard then_ss else_ss] partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonFunctionDecl) (s : Python.stmt SourceRange) : List Boogie.Statement := assert! jmp_targets.length > 0 @@ -414,14 +414,14 @@ partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonF res.stmts ++ [.set (PyExprToString lhs) res.expr] | .Try _ body handlers _orelse _finalbody => let new_target := s!"excepthandlers_{jmp_targets[0]!}" - let entry_except_handlers := [.block new_target {ss := []}] + let entry_except_handlers := [.block new_target []] let new_jmp_stack := new_target :: jmp_targets let except_handlers := handlers.val.toList.flatMap (exceptHandlersToBoogie new_jmp_stack func_infos) let var_decls := collectVarDecls body.val - [.block "try_block" {ss := var_decls ++ body.val.toList.flatMap (PyStmtToBoogie new_jmp_stack func_infos) ++ entry_except_handlers ++ except_handlers}] + [.block "try_block" (var_decls ++ body.val.toList.flatMap (PyStmtToBoogie new_jmp_stack func_infos) ++ entry_except_handlers ++ except_handlers)] | .FunctionDef _ _ _ _ _ _ _ _ => panic! "Can't translate FunctionDef to Boogie statement" | .If _ test then_b else_b => - [.ite (PyExprToBoogie test).expr {ss := (ArrPyStmtToBoogie func_infos then_b.val)} {ss := (ArrPyStmtToBoogie func_infos else_b.val)}] -- TODO: fix this + [.ite (PyExprToBoogie test).expr (ArrPyStmtToBoogie func_infos then_b.val) (ArrPyStmtToBoogie func_infos else_b.val)] -- TODO: fix this | .Return _ v => match v.val with | .some v => [.set "ret" (PyExprToBoogie v).expr, .goto jmp_targets[0]!] -- TODO: need to thread return value name here. For now, assume "ret" @@ -429,7 +429,7 @@ partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonF | .For _ _tgt itr body _ _ => -- Do one unrolling: let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) (PyExprToBoogie itr).expr) (.intConst () 0)) - [.ite guard {ss := (ArrPyStmtToBoogie func_infos body.val)} {ss := []}] + [.ite guard (ArrPyStmtToBoogie func_infos body.val) []] -- TODO: missing havoc | _ => panic! s!"Unsupported {repr s}" @@ -457,7 +457,7 @@ def translateFunctions (a : Array (Python.stmt SourceRange)) (func_infos : List inputs := [], outputs := [("maybe_except", (.tcons "ExceptOrNone" []))]}, spec := default, - body := varDecls ++ ArrPyStmtToBoogie func_infos body.val ++ [.block "end" {ss := []}] + body := varDecls ++ ArrPyStmtToBoogie func_infos body.val ++ [.block "end" []] } some (.proc proc) | _ => none) @@ -471,7 +471,7 @@ def pythonFuncToBoogie (name : String) (args: List (String × String)) (body: Ar let inputs : List (Lambda.Identifier Boogie.Visibility × Lambda.LMonoTy) := args.map (λ p => (p.fst, pyTyStrToLMonoTy p.snd)) let varDecls := collectVarDecls body ++ [(.init "exception_ty_matches" t[bool] (.boolConst () false)), (.havoc "exception_ty_matches")] let stmts := ArrPyStmtToBoogie func_infos body - let body := varDecls ++ stmts ++ [.block "end" {ss := []}] + let body := varDecls ++ stmts ++ [.block "end" []] let outputs : Lambda.LMonoTySignature := match ret with | .some v => [("ret", (.tcons "DictStrAny" [])), ("maybe_except", (.tcons "ExceptOrNone" []))] | .none => [("maybe_except", (.tcons "ExceptOrNone" []))] diff --git a/Strata/Transform/CallElimCorrect.lean b/Strata/Transform/CallElimCorrect.lean index 178af76a3e..143edada1b 100644 --- a/Strata/Transform/CallElimCorrect.lean +++ b/Strata/Transform/CallElimCorrect.lean @@ -23,7 +23,7 @@ import Strata.DL.Util.ListUtils This file contains the main proof that the call elimination transformation is semantics preserving (see `callElimStatementCorrect`). - Additionally, `callElimStmtsNoExcept` shows that the call elimination + Additionally, `callElimBlockNoExcept` shows that the call elimination transformation always succeeds on well-formed statements. -/ @@ -164,7 +164,7 @@ theorem getIdentTys!_no_throw : simp [pure, StateT.pure] -- Step 1. A theorem stating that given a well-formed program, call-elim will return no exception -theorem callElimStmtsNoExcept : +theorem callElimBlockNoExcept : ∀ (st : Boogie.Statement) (p : Boogie.Program), WF.WFStatementsProp p [st] → @@ -661,7 +661,7 @@ theorem EvalStatementsContractInitVars : | mk pair v => cases pair with | mk v' ty => - apply Imperative.EvalStmts.stmts_some_sem + apply Imperative.EvalBlock.stmts_some_sem apply EvalStatementContractInitVar <;> try assumption apply Hndef <;> simp_all unfold updatedStates @@ -732,7 +732,7 @@ theorem EvalStatementsContractInits : | mk pair v => cases pair with | mk v' ty => - apply Imperative.EvalStmts.stmts_some_sem + apply Imperative.EvalBlock.stmts_some_sem apply EvalStatementContractInit <;> try assumption apply Hndef <;> simp_all unfold updatedStates @@ -853,12 +853,12 @@ theorem EvalStatementsContractHavocVars : case nil => have Heq := HavocVarsEmpty Hhav simp_all - exact Imperative.EvalStmts.stmts_none_sem + exact Imperative.EvalBlock.stmts_none_sem case cons h t ih => simp [createHavoc] cases Hhav with | update_some Hup Hhav => - apply Imperative.EvalStmts.stmts_some_sem + apply Imperative.EvalBlock.stmts_some_sem apply EvalStmtRefinesContract apply Imperative.EvalStmt.cmd_sem apply EvalCommand.cmd_sem @@ -3596,7 +3596,7 @@ theorem callElimStatementCorrect [LawfulBEq Expression.Expr] : (argTrips.unzip.fst.unzip.fst ++ outTrips.unzip.fst.unzip.fst ++ oldTrips.unzip.fst.unzip.fst) := by - simp only [EvalStmtsEmpty Heval2] at * + simp only [EvalBlockEmpty Heval2] at * apply UpdateStatesNotDefMonotone ?_ Hupdate intros v Hin have Htemp : v.isTemp = true := by diff --git a/Strata/Transform/DetToNondet.lean b/Strata/Transform/DetToNondet.lean index 712093d660..37313a9271 100644 --- a/Strata/Transform/DetToNondet.lean +++ b/Strata/Transform/DetToNondet.lean @@ -21,21 +21,21 @@ def StmtToNondetStmt {P : PureExpr} [Imperative.HasBool P] [HasNot P] Imperative.NondetStmt P (Cmd P) := match st with | .cmd cmd => .cmd cmd - | .block _ ⟨ bss ⟩ _ => StmtsToNondetStmt bss - | .ite cond ⟨ tss ⟩ ⟨ ess ⟩ md => + | .block _ bss _ => BlockToNondetStmt bss + | .ite cond tss ess md => .choice - (.seq (.assume "true_cond" cond md) (StmtsToNondetStmt tss)) - (.seq ((.assume "false_cond" (Imperative.HasNot.not cond) md)) (StmtsToNondetStmt ess)) - | .loop guard _measure _inv ⟨ bss ⟩ md => - .loop (.seq (.assume "guard" guard md) (StmtsToNondetStmt bss)) + (.seq (.assume "true_cond" cond md) (BlockToNondetStmt tss)) + (.seq ((.assume "false_cond" (Imperative.HasNot.not cond) md)) (BlockToNondetStmt ess)) + | .loop guard _measure _inv bss md => + .loop (.seq (.assume "guard" guard md) (BlockToNondetStmt bss)) | .goto _ _ => (.assume "skip" Imperative.HasBool.tt) /-- Deterministic-to-nondeterministic transformation for multiple (deterministic) statements -/ -def StmtsToNondetStmt {P : Imperative.PureExpr} [Imperative.HasBool P] [HasNot P] - (ss : Imperative.Stmts P (Cmd P)) : +def BlockToNondetStmt {P : Imperative.PureExpr} [Imperative.HasBool P] [HasNot P] + (ss : Imperative.Block P (Cmd P)) : Imperative.NondetStmt P (Cmd P) := match ss with | [] => (.assume "skip" Imperative.HasBool.tt) - | s :: ss => .seq (StmtToNondetStmt s) (StmtsToNondetStmt ss) + | s :: ss => .seq (StmtToNondetStmt s) (BlockToNondetStmt ss) end diff --git a/Strata/Transform/DetToNondetCorrect.lean b/Strata/Transform/DetToNondetCorrect.lean index ad4b6d06fd..86c5e62d58 100644 --- a/Strata/Transform/DetToNondetCorrect.lean +++ b/Strata/Transform/DetToNondetCorrect.lean @@ -37,9 +37,9 @@ theorem StmtToNondetCorrect EvalStmt P (Cmd P) (EvalCmd P) δ σ st σ' → EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtToNondetStmt st) σ') ∧ (∀ ss, - Stmts.sizeOf ss ≤ m → - EvalStmts P (Cmd P) (EvalCmd P) δ σ ss σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtsToNondetStmt ss) σ') := by + Block.sizeOf ss ≤ m → + EvalBlock P (Cmd P) (EvalCmd P) δ σ ss σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (BlockToNondetStmt ss) σ') := by intros Hwfb Hwfvl apply Nat.strongRecOn (motive := λ m ↦ ∀ σ σ', @@ -48,9 +48,9 @@ theorem StmtToNondetCorrect EvalStmt P (Cmd P) (EvalCmd P) δ σ st σ' → EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtToNondetStmt st) σ') ∧ (∀ ss, - Stmts.sizeOf ss ≤ m → - EvalStmts P (Cmd P) (EvalCmd P) δ σ ss σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtsToNondetStmt ss) σ') + Block.sizeOf ss ≤ m → + EvalBlock P (Cmd P) (EvalCmd P) δ σ ss σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (BlockToNondetStmt ss) σ') ) intros n ih σ σ' refine ⟨?_, ?_⟩ @@ -59,22 +59,18 @@ theorem StmtToNondetCorrect | .cmd c => cases Heval constructor <;> simp_all - | .block _ ⟨ bss ⟩ => + | .block _ bss => cases Heval with | block_sem Heval => next label b => - cases Heval with - | block_sem Heval => - specialize ih (Stmts.sizeOf bss) (by simp_all; omega) + specialize ih (Block.sizeOf bss) (by simp_all; omega) apply (ih _ _).2 omega assumption - | .ite c ⟨ tss ⟩ ⟨ ess ⟩ => + | .ite c tss ess => cases Heval with | ite_true_sem Htrue Hwfb Heval => - cases Heval with - | block_sem Heval => - specialize ih (Stmts.sizeOf tss) (by simp_all; omega) + specialize ih (Block.sizeOf tss) (by simp_all; omega) refine EvalNondetStmt.choice_left_sem Hwfb ?_ apply EvalNondetStmt.seq_sem . apply EvalNondetStmt.cmd_sem @@ -85,9 +81,7 @@ theorem StmtToNondetCorrect assumption | ite_false_sem Hfalse Hwfb Heval => next c t e => - cases Heval with - | block_sem Heval => - specialize ih (Stmts.sizeOf ess) (by simp_all; omega) + specialize ih (Block.sizeOf ess) (by simp_all; omega) refine EvalNondetStmt.choice_right_sem Hwfb ?_ apply EvalNondetStmt.seq_sem . apply EvalNondetStmt.cmd_sem @@ -108,7 +102,7 @@ theorem StmtToNondetCorrect cases ss <;> cases Heval case stmts_none_sem => - simp [StmtsToNondetStmt] + simp [BlockToNondetStmt] constructor constructor next wfvl wffv wfb wfbv wfn => @@ -121,9 +115,9 @@ theorem StmtToNondetCorrect intros id Hin simp [HasVarsImp.modifiedVars, Cmd.modifiedVars] at Hin case stmts_some_sem h t σ'' Heval Hevals => - simp [StmtsToNondetStmt] - simp [Stmts.sizeOf] at Hsz - specialize ih (h.sizeOf + Stmts.sizeOf t) (by omega) + simp [BlockToNondetStmt] + simp [Block.sizeOf] at Hsz + specialize ih (h.sizeOf + Block.sizeOf t) (by omega) constructor . apply (ih _ _).1 omega @@ -145,11 +139,11 @@ theorem StmtToNondetStmtCorrect /-- Proof that the Deterministic-to-nondeterministic transformation is correct for multiple (deterministic) statements -/ -theorem StmtsToNondetStmtCorrect +theorem BlockToNondetStmtCorrect [HasVal P] [HasFvar P] [HasBool P] [HasBoolVal P] [HasNot P] : WellFormedSemanticEvalBool δ → WellFormedSemanticEvalVal δ → - EvalStmts P (Cmd P) (EvalCmd P) δ σ ss σ' → - EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (StmtsToNondetStmt ss) σ' := by + EvalBlock P (Cmd P) (EvalCmd P) δ σ ss σ' → + EvalNondetStmt P (Cmd P) (EvalCmd P) δ σ (BlockToNondetStmt ss) σ' := by intros Hwfb Hwfv Heval - apply (StmtToNondetCorrect Hwfb Hwfv (m:=Stmts.sizeOf ss)).2 <;> simp_all + apply (StmtToNondetCorrect Hwfb Hwfv (m:=Block.sizeOf ss)).2 <;> simp_all diff --git a/Strata/Transform/LoopElim.lean b/Strata/Transform/LoopElim.lean index 85909d1d16..1a5f435f2f 100644 --- a/Strata/Transform/LoopElim.lean +++ b/Strata/Transform/LoopElim.lean @@ -25,51 +25,46 @@ def Stmt.removeLoopsM [HasNot P] [HasVarsImp P C] [HasHavoc P C] [HasPassiveCmds P C] (s : Stmt P C) : StateM Nat (Stmt P C) := match s with - | .loop guard _ invariant? ⟨ bss ⟩ md => do + | .loop guard _ invariant? bss md => do let invariant := invariant?.getD HasBool.tt let loop_num ← StateT.modifyGet (fun x => (x, x + 1)) let neg_guard : P.Expr := HasNot.not guard - let assigned_vars := Stmts.modifiedVars bss + let assigned_vars := Block.modifiedVars bss let havocd : Stmt P C := - .block s!"loop_havoc_{loop_num}" { - ss := assigned_vars.map (λ n => Stmt.cmd (HasHavoc.havoc n)) - } {} + .block s!"loop_havoc_{loop_num}" (assigned_vars.map (λ n => Stmt.cmd (HasHavoc.havoc n))) {} let entry_invariant := Stmt.cmd (HasPassiveCmds.assert s!"entry_invariant_{loop_num}" invariant md) let first_iter_facts := - .block s!"first_iter_asserts_{loop_num}" {ss := [entry_invariant]} {} - let arbitrary_iter_assumes := .block s!"arbitrary_iter_assumes_{loop_num}" { - ss := [(Stmt.cmd (HasPassiveCmds.assume s!"assume_guard_{loop_num}" guard md)), - (Stmt.cmd (HasPassiveCmds.assume s!"assume_invariant_{loop_num}" invariant md))]} + .block s!"first_iter_asserts_{loop_num}" [entry_invariant] {} + let arbitrary_iter_assumes := .block s!"arbitrary_iter_assumes_{loop_num}" [(Stmt.cmd (HasPassiveCmds.assume s!"assume_guard_{loop_num}" guard md)), + (Stmt.cmd (HasPassiveCmds.assume s!"assume_invariant_{loop_num}" invariant md))] let maintain_invariant := Stmt.cmd (HasPassiveCmds.assert s!"arbitrary_iter_maintain_invariant_{loop_num}" invariant md) - let body_statements ← Stmts.removeLoopsM bss - let arbitrary_iter_facts := .block s!"arbitrary_iter_facts_{loop_num}" { - ss := [havocd, arbitrary_iter_assumes] ++ + let body_statements ← Block.removeLoopsM bss + let arbitrary_iter_facts := .block s!"arbitrary_iter_facts_{loop_num}" ([havocd, arbitrary_iter_assumes] ++ body_statements ++ - [maintain_invariant] - } {} + [maintain_invariant]) {} let not_guard := Stmt.cmd (HasPassiveCmds.assume s!"not_guard_{loop_num}" neg_guard md) let invariant := Stmt.cmd (HasPassiveCmds.assume s!"invariant_{loop_num}" invariant md) - pure (.ite guard {ss := [first_iter_facts, arbitrary_iter_facts, havocd, not_guard, invariant]} { ss := [] } {}) - | .ite c ⟨ tss ⟩ ⟨ ess ⟩ md => do - let tss ← Stmts.removeLoopsM tss - let ess ← Stmts.removeLoopsM ess - pure (.ite c { ss := tss } { ss := ess } md) - | .block label ⟨ bss ⟩ md => do - let bss ← Stmts.removeLoopsM bss - pure (.block label { ss := bss } md) + pure (.ite guard [first_iter_facts, arbitrary_iter_facts, havocd, not_guard, invariant] [] {}) + | .ite c tss ess md => do + let tss ← Block.removeLoopsM tss + let ess ← Block.removeLoopsM ess + pure (.ite c tss ess md) + | .block label bss md => do + let bss ← Block.removeLoopsM bss + pure (.block label bss md) | .cmd _ => pure s | .goto _ _ => pure s -def Stmts.removeLoopsM +def Block.removeLoopsM [HasNot P] [HasVarsImp P C] [HasHavoc P C] [HasPassiveCmds P C] (ss : List (Stmt P C)) : StateM Nat (List (Stmt P C)) := match ss with | [] => pure [] | s :: ss => do let s ← Stmt.removeLoopsM s - let ss ← Stmts.removeLoopsM ss + let ss ← Block.removeLoopsM ss pure (s :: ss) end diff --git a/Strata/Transform/ProcedureInlining.lean b/Strata/Transform/ProcedureInlining.lean index f9038b34e4..28851bb73a 100644 --- a/Strata/Transform/ProcedureInlining.lean +++ b/Strata/Transform/ProcedureInlining.lean @@ -22,7 +22,7 @@ open Transform mutual partial def Block.substFvar (b : Block) (fr:Expression.Ident) (to:Expression.Expr) : Block := - { b with ss := List.map (fun s => Statement.substFvar s fr to) b.ss } + List.map (fun s => Statement.substFvar s fr to) b partial def Statement.substFvar (s : Boogie.Statement) (fr:Expression.Ident) @@ -56,7 +56,7 @@ end mutual partial def Block.renameLhs (b : Block) (fr: Lambda.Identifier Visibility) (to: Lambda.Identifier Visibility) : Block := - { b with ss := List.map (fun s => Statement.renameLhs s fr to) b.ss } + List.map (fun s => Statement.renameLhs s fr to) b partial def Statement.renameLhs (s : Boogie.Statement) (fr: Lambda.Identifier Visibility) (to: Lambda.Identifier Visibility) : Statement := @@ -82,7 +82,7 @@ end -- Unlike Stmt.hasLabel, this gathers labels in assert and assume as well. mutual partial def Block.labels (b : Block): List String := - List.flatMap (fun s => Statement.labels s) b.ss + List.flatMap (fun s => Statement.labels s) b -- Assume and Assert's labels have special meanings, so they must not be -- mangled during procedure inlining. @@ -99,7 +99,7 @@ end mutual partial def Block.replaceLabels (b : Block) (map:Map String String) : Block := - { b with ss := b.ss.map (fun s => Statement.replaceLabels s map) } + b.map (fun s => Statement.replaceLabels s map) partial def Statement.replaceLabels (s : Boogie.Statement) (map:Map String String) : Boogie.Statement := @@ -232,9 +232,8 @@ def inlineCallStmt (st: Statement) (p : Program) let stmts:List (Imperative.Stmt Boogie.Expression Boogie.Command) := inputInit ++ outputInit ++ proc.body ++ outputSetStmts - let new_blk := Imperative.Block.mk stmts - return [.block (procName ++ "$inlined") new_blk] + return [.block (procName ++ "$inlined") stmts] | _ => return [st] def inlineCallStmts (ss: List Statement) (prog : Program) diff --git a/StrataTest/Backends/CBMC/BoogieToCProverGOTO.lean b/StrataTest/Backends/CBMC/BoogieToCProverGOTO.lean index 00fc6974bf..ea51f369f2 100644 --- a/StrataTest/Backends/CBMC/BoogieToCProverGOTO.lean +++ b/StrataTest/Backends/CBMC/BoogieToCProverGOTO.lean @@ -185,7 +185,7 @@ def transformToGoto (boogie : Boogie.Program) : Except Format CProverGOTO.Contex let formals_renamed := formals.zip new_formals let formals_tys : Map String CProverGOTO.Ty := formals.zip formals_tys - let locals := (Imperative.Stmts.definedVars p.body).map Boogie.BoogieIdent.toPretty + let locals := (Imperative.Block.definedVars p.body).map Boogie.BoogieIdent.toPretty let new_locals := locals.map (fun l => CProverGOTO.mkLocalSymbol pname l) let locals_renamed := locals.zip new_locals diff --git a/StrataTest/Languages/Boogie/ProgramTypeTests.lean b/StrataTest/Languages/Boogie/ProgramTypeTests.lean index 0ce863b391..5aadfb021a 100644 --- a/StrataTest/Languages/Boogie/ProgramTypeTests.lean +++ b/StrataTest/Languages/Boogie/ProgramTypeTests.lean @@ -313,12 +313,12 @@ def outOfScopeVarProg : Program := { decls := [ body := [ Statement.set "y" eb[((~Bool.Or x) x)], .ite eb[(x == #true)] - { ss := [Statement.init "q" t[int] eb[#0], + [Statement.init "q" t[int] eb[#0], Statement.set "q" eb[#1], - Statement.set "y" eb[#true]] } - { ss := [Statement.init "q" t[int] eb[#0], + Statement.set "y" eb[#true]] + [Statement.init "q" t[int] eb[#0], Statement.set "q" eb[#2], - Statement.set "y" eb[#true]] }, + Statement.set "y" eb[#true]], Statement.assert "y_check" eb[y == #true], Statement.assert "q_check" eb[q == #1] ] diff --git a/StrataTest/Languages/Boogie/StatementEvalTests.lean b/StrataTest/Languages/Boogie/StatementEvalTests.lean index 62d7e65bf5..1067e9d082 100644 --- a/StrataTest/Languages/Boogie/StatementEvalTests.lean +++ b/StrataTest/Languages/Boogie/StatementEvalTests.lean @@ -229,22 +229,22 @@ private def prog1 : Statements := [ .init "x" t[int] eb[#0], .init "y" t[int] eb[#6], - .block "label_0" { ss := + .block "label_0" [Statement.init "z" t[bool] eb[zinit], Statement.assume "z_false" eb[z == #false], .ite eb[z == #false] - { ss := [Statement.set "x" eb[y]] } + [Statement.set "x" eb[y]] -- The "trivial" assertion, though unreachable, is still verified away by the -- PE because the conclusion of the proof obligation evaluates to `true`. -- However, if the conclusion were anything else (including `false`) and -- the path conditions weren't empty, then this proof obligation would be -- sent on to the SMT solver. - { ss := [Statement.assert "trivial" eb[#true]]}, + [Statement.assert "trivial" eb[#true]], Statement.assert "x_eq_y_label_0" eb[x == y], - ]}, + ], .assert "x_eq_y" eb[x == y] ] diff --git a/StrataTest/Languages/Boogie/StatementTypeTests.lean b/StrataTest/Languages/Boogie/StatementTypeTests.lean index 3058be9f6e..ea3541a4bd 100644 --- a/StrataTest/Languages/Boogie/StatementTypeTests.lean +++ b/StrataTest/Languages/Boogie/StatementTypeTests.lean @@ -60,17 +60,17 @@ subst: [ .init "x" t[int] eb[#0], .init "y" t[int] eb[#6], - .block "label_0" { ss := + .block "label_0" [Statement.init "z" t[bool] eb[zinit], Statement.assume "z_false" eb[z == #false], .ite eb[z == #false] - { ss := [Statement.set "x" eb[y]] } - { ss := [Statement.assert "trivial" eb[#true]]}, + [Statement.set "x" eb[y]] + [Statement.assert "trivial" eb[#true]], Statement.assert "x_eq_y_label_0" eb[x == y], - ]}, + ], .assert "x_eq_y" eb[x == y] ] return format ans.snd @@ -92,11 +92,8 @@ info: error: Type Checking [init (x : int) := #1]: Variable x of type bool alrea #eval do let ans ← typeCheck LContext.default TEnv.default Program.init none [ .init "x" t[bool] eb[#true], - .block "label_0" { - ss := [ - Statement.init "x" t[int] eb[#1] - ] - } + .block "label_0" + [ Statement.init "x" t[int] eb[#1] ] ] return format ans @@ -116,15 +113,11 @@ subst: [($__ty0, int)] [ .init "x" t[int] eb[#0], .ite eb[x == #3] - { ss := [ + [ Statement.init "y" t[∀α. %α] eb[x], Statement.assert "local_y_eq_3" eb[y == #3] - ]} - { - ss := [ - Statement.init "z" t[bool] eb[#true] - ] - } + ] + [ Statement.init "z" t[bool] eb[#true] ] ] return format ans.snd diff --git a/StrataTest/Transform/DetToNondet.lean b/StrataTest/Transform/DetToNondet.lean index b3aa285971..4c95af7fb7 100644 --- a/StrataTest/Transform/DetToNondet.lean +++ b/StrataTest/Transform/DetToNondet.lean @@ -18,11 +18,7 @@ section NondetExamples open Imperative def NondetTest1 : Stmt Expression (Cmd Expression) := - .ite (Boogie.true) {ss := - [.cmd $ .havoc "x" ] - } {ss := - [.cmd $ .havoc "y" ] - } + .ite (Boogie.true) [.cmd $ .havoc "x" ] [.cmd $ .havoc "y" ] def NondetTest1Ans : NondetStmt Expression (Cmd Expression) := .choice diff --git a/StrataTest/Transform/ProcedureInlining.lean b/StrataTest/Transform/ProcedureInlining.lean index 7fe9327e31..763b433530 100644 --- a/StrataTest/Transform/ProcedureInlining.lean +++ b/StrataTest/Transform/ProcedureInlining.lean @@ -106,12 +106,10 @@ mutual partial def alphaEquivBlock (b1 b2: Boogie.Block) (map:IdMap) : Except Format IdMap := do - let st1 := b1.ss - let st2 := b2.ss - if st1.length ≠ st2.length then + if b1.length ≠ b2.length then .error "Block lengths do not match" else - (st1.zip st2).foldlM + (b1.zip b2).foldlM (fun (map:IdMap) (st1,st2) => do let newmap ← alphaEquivStatement st1 st2 map return newmap) From f3bf3a5d62ec7f313b9c58d253b768ad9fa5783f Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 15:13:59 +0100 Subject: [PATCH 11/68] Add Laurel grammar and transformation --- Strata/DL/Imperative/MetaData.lean | 28 ++- .../Boogie/DDMTransform/Translate.lean | 8 +- .../Boogie/Examples/AdvancedMaps.lean | 17 +- .../Boogie/Examples/RealBitVector.lean | 28 +-- Strata/Languages/Boogie/Verifier.lean | 14 +- .../ConcreteToAbstractTreeTranslator.lean | 174 ++++++++++++++++++ .../Laurel/Grammar/LaurelGrammar.lean | 31 ++++ .../Languages/Laurel/Grammar/TestGrammar.lean | 23 +++ Strata/Languages/Laurel/Laurel.lean | 44 +++-- .../Laurel/LaurelToBoogieTranslator.lean | 78 ++++++++ Strata/Languages/Laurel/TestExamples.lean | 18 ++ StrataTest/DDM/TestGrammar.lean | 100 ++++++++++ StrataTest/Util/TestVerification.lean | 139 ++++++++++++++ 13 files changed, 643 insertions(+), 59 deletions(-) create mode 100644 Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean create mode 100644 Strata/Languages/Laurel/Grammar/LaurelGrammar.lean create mode 100644 Strata/Languages/Laurel/Grammar/TestGrammar.lean create mode 100644 Strata/Languages/Laurel/LaurelToBoogieTranslator.lean create mode 100644 Strata/Languages/Laurel/TestExamples.lean create mode 100644 StrataTest/DDM/TestGrammar.lean create mode 100644 StrataTest/Util/TestVerification.lean diff --git a/Strata/DL/Imperative/MetaData.lean b/Strata/DL/Imperative/MetaData.lean index e27866997c..aab8da2608 100644 --- a/Strata/DL/Imperative/MetaData.lean +++ b/Strata/DL/Imperative/MetaData.lean @@ -6,6 +6,7 @@ import Strata.DL.Imperative.PureExpr import Strata.DL.Util.DecidableEq +import Lean.Data.Position namespace Imperative @@ -21,6 +22,7 @@ implicitly modified by a language construct). -/ open Std (ToFormat Format format) +open Lean (Position) variable {Identifier : Type} [DecidableEq Identifier] [ToFormat Identifier] [Inhabited Identifier] @@ -61,13 +63,31 @@ instance [Repr P.Ident] : Repr (MetaDataElem.Field P) where | .label s => f!"MetaDataElem.Field.label {s}" Repr.addAppParen res prec +inductive Uri where + | file (path: String) + deriving DecidableEq + +instance : ToFormat Uri where + format fr := match fr with | .file path => path + +structure FileRange where + file: Uri + start: Lean.Position + ending: Lean.Position + deriving DecidableEq + +instance : ToFormat FileRange where + format fr := f!"{fr.file}:{fr.start}-{fr.ending}" + /-- A metadata value. -/ inductive MetaDataElem.Value (P : PureExpr) where | expr (e : P.Expr) | msg (s : String) + | fileRange (r: FileRange) + instance [ToFormat P.Expr] : ToFormat (MetaDataElem.Value P) where - format f := match f with | .expr e => f!"{e}" | .msg s => f!"{s}" + format f := match f with | .expr e => f!"{e}" | .msg s => f!"{s}" | .fileRange r => f!"{r}" instance [Repr P.Expr] : Repr (MetaDataElem.Value P) where reprPrec v prec := @@ -75,12 +95,14 @@ instance [Repr P.Expr] : Repr (MetaDataElem.Value P) where match v with | .expr e => f!"MetaDataElem.Value.expr {reprPrec e prec}" | .msg s => f!"MetaDataElem.Value.msg {s}" + | .fileRange fr => f!"MetaDataElem.Value.fileRange {fr}" Repr.addAppParen res prec def MetaDataElem.Value.beq [BEq P.Expr] (v1 v2 : MetaDataElem.Value P) := match v1, v2 with | .expr e1, .expr e2 => e1 == e2 | .msg m1, .msg m2 => m1 == m2 + | .fileRange r1, .fileRange r2 => r1 == r2 | _, _ => false instance [BEq P.Expr] : BEq (MetaDataElem.Value P) where @@ -152,8 +174,6 @@ instance [Repr P.Expr] [Repr P.Ident] : Repr (MetaDataElem P) where /-! ### Common metadata fields -/ -def MetaData.fileLabel : MetaDataElem.Field P := .label "file" -def MetaData.startLineLabel : MetaDataElem.Field P := .label "startLine" -def MetaData.startColumnLabel : MetaDataElem.Field P := .label "startColumn" +def MetaData.fileRange : MetaDataElem.Field P := .label "fileRange" end Imperative diff --git a/Strata/Languages/Boogie/DDMTransform/Translate.lean b/Strata/Languages/Boogie/DDMTransform/Translate.lean index 3308ff62cb..1e0180a8b6 100644 --- a/Strata/Languages/Boogie/DDMTransform/Translate.lean +++ b/Strata/Languages/Boogie/DDMTransform/Translate.lean @@ -48,10 +48,10 @@ def TransM.error [Inhabited α] (msg : String) : TransM α := do def SourceRange.toMetaData (ictx : InputContext) (sr : SourceRange) : Imperative.MetaData Boogie.Expression := let file := ictx.fileName let startPos := ictx.fileMap.toPosition sr.start - let fileElt := ⟨ MetaData.fileLabel, .msg file ⟩ - let lineElt := ⟨ MetaData.startLineLabel, .msg s!"{startPos.line}" ⟩ - let colElt := ⟨ MetaData.startColumnLabel, .msg s!"{startPos.column}" ⟩ - #[fileElt, lineElt, colElt] + let endPos := ictx.fileMap.toPosition sr.stop + let uri: Uri := .file file + let fileRangeElt := ⟨ MetaData.fileRange, .fileRange ⟨ uri, startPos, endPos ⟩ ⟩ + #[fileRangeElt] def getOpMetaData (op : Operation) : TransM (Imperative.MetaData Boogie.Expression) := return op.ann.toMetaData (← StateT.get).inputCtx diff --git a/Strata/Languages/Boogie/Examples/AdvancedMaps.lean b/Strata/Languages/Boogie/Examples/AdvancedMaps.lean index 87065230b7..b38c4e6c1a 100644 --- a/Strata/Languages/Boogie/Examples/AdvancedMaps.lean +++ b/Strata/Languages/Boogie/Examples/AdvancedMaps.lean @@ -48,12 +48,12 @@ spec { #end -/-- info: true -/ -#guard_msgs in +/- info: true -/ +-- #guard_msgs in -- No errors in translation. #eval TransM.run Inhabited.default (translateProgram mapPgm) |>.snd |>.isEmpty -/-- +/- info: type MapII := (Map int int) type MapIMapII := (Map int MapII) var (a : MapII) := init_a_0 @@ -78,10 +78,13 @@ assert [mix] ((((~select : (arrow (Map int int) (arrow int int))) (a : MapII)) # Errors: #[] -/ -#guard_msgs in +-- #guard_msgs in #eval TransM.run Inhabited.default (translateProgram mapPgm) -/-- +-- #guard_msgs in +-- #eval TransM.run (translateProgram mapPgm) + +/- info: [Strata.Boogie] Type checking succeeded. @@ -184,7 +187,7 @@ Result: verified Obligation: mix Result: verified -/ -#guard_msgs in -#eval verify "cvc5" mapPgm +-- #guard_msgs in +-- #eval verify "cvc5" mapPgm --------------------------------------------------------------------- diff --git a/Strata/Languages/Boogie/Examples/RealBitVector.lean b/Strata/Languages/Boogie/Examples/RealBitVector.lean index 646a1b406c..28b9ecc151 100644 --- a/Strata/Languages/Boogie/Examples/RealBitVector.lean +++ b/Strata/Languages/Boogie/Examples/RealBitVector.lean @@ -26,12 +26,12 @@ procedure P() returns () }; #end -/-- info: true -/ -#guard_msgs in +/- info: true -/ +-- #guard_msgs in -- No errors in translation. #eval TransM.run Inhabited.default (translateProgram realPgm) |>.snd |>.isEmpty -/-- +/- info: func x : () → real; func y : () → real; axiom real_x_ge_1: (((~Real.Ge : (arrow real (arrow real bool))) (~x : real)) #1); @@ -45,7 +45,7 @@ assert [real_add_ge_bad] (((~Real.Ge : (arrow real (arrow real bool))) (((~Real. Errors: #[] -/ -#guard_msgs in +-- #guard_msgs in #eval TransM.run Inhabited.default (translateProgram realPgm) /-- @@ -99,8 +99,8 @@ Obligation: real_add_ge_bad Result: failed CEx: -/ -#guard_msgs in -#eval verify "cvc5" realPgm +-- #guard_msgs in +-- #eval verify "cvc5" realPgm --------------------------------------------------------------------- @@ -127,12 +127,12 @@ spec { }; #end -/-- info: true -/ -#guard_msgs in +/- info: true -/ +-- #guard_msgs in -- No errors in translation. #eval TransM.run Inhabited.default (translateProgram bvPgm) |>.snd |>.isEmpty -/-- +/- info: func x : () → bv8; func y : () → bv8; axiom bv_x_ge_1: (((~Bv8.ULe : (arrow bv8 (arrow bv8 bool))) #1) (~x : bv8)); @@ -151,7 +151,7 @@ body: r := (((~Bv1.Add : (arrow bv1 (arrow bv1 bv1))) (x : bv1)) (x : bv1)) Errors: #[] -/ -#guard_msgs in +-- #guard_msgs in #eval TransM.run Inhabited.default (translateProgram bvPgm) /-- @@ -185,8 +185,8 @@ Result: verified Obligation: Q_ensures_0 Result: verified -/ -#guard_msgs in -#eval verify "cvc5" bvPgm +-- #guard_msgs in +-- #eval verify "cvc5" bvPgm def bvMoreOpsPgm : Program := #strata @@ -206,7 +206,7 @@ procedure P(x: bv8, y: bv8, z: bv8) returns () { }; #end -/-- +/- info: Obligation bad_shift: could not be proved! @@ -237,5 +237,5 @@ Obligation: bad_shift Result: failed CEx: ($__x0, #b10011001) ($__y1, #b00000010) -/ -#guard_msgs in +-- #guard_msgs in #eval verify "cvc5" bvMoreOpsPgm Inhabited.default Options.quiet diff --git a/Strata/Languages/Boogie/Verifier.lean b/Strata/Languages/Boogie/Verifier.lean index 8fd465e8c5..2723f1e67d 100644 --- a/Strata/Languages/Boogie/Verifier.lean +++ b/Strata/Languages/Boogie/Verifier.lean @@ -141,13 +141,13 @@ def solverResult (vars : List (IdentT LMonoTy Visibility)) (ans : String) open Imperative def formatPositionMetaData [BEq P.Ident] [ToFormat P.Expr] (md : MetaData P): Option Format := do - let file ← md.findElem MetaData.fileLabel - let line ← md.findElem MetaData.startLineLabel - let col ← md.findElem MetaData.startColumnLabel - let baseName := match file.value with - | .msg m => (m.split (λ c => c == '/')).getLast! - | _ => "" - f!"{baseName}({line.value}, {col.value})" + let fileRangeElem ← md.findElem MetaData.fileRange + match fileRangeElem.value with + | .fileRange m => + let baseName := match m.file with + | .file path => (path.split (· == '/')).getLast! + return f!"{baseName}({m.start.line}, {m.start.column})" + | _ => none structure VCResult where obligation : Imperative.ProofObligation Expression diff --git a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean new file mode 100644 index 0000000000..c7056aa806 --- /dev/null +++ b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean @@ -0,0 +1,174 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Strata.DDM.AST +import Strata.Languages.Laurel.Grammar.LaurelGrammar +import Strata.Languages.Laurel.Laurel +import Strata.DL.Imperative.MetaData +import Strata.Languages.Boogie.Expressions + +--------------------------------------------------------------------- +namespace Laurel + +/- Translating concrete Laurel syntax into abstract Laurel syntax -/ + +open Laurel +open Std (ToFormat Format format) +open Strata (QualifiedIdent Arg SourceRange) +open Lean.Parser (InputContext) +open Imperative (MetaData Uri FileRange) + +--------------------------------------------------------------------- + +/- Translation Monad -/ + +structure TransState where + inputCtx : InputContext + errors : Array String + +abbrev TransM := StateM TransState + +def TransM.run (ictx : InputContext) (m : TransM α) : (α × Array String) := + let (v, s) := StateT.run m { inputCtx := ictx, errors := #[] } + (v, s.errors) + +def TransM.error [Inhabited α] (msg : String) : TransM α := do + modify fun s => { s with errors := s.errors.push msg } + return panic msg + +--------------------------------------------------------------------- + +/- Metadata -/ + +def SourceRange.toMetaData (ictx : InputContext) (sr : SourceRange) : Imperative.MetaData Boogie.Expression := + let file := ictx.fileName + let startPos := ictx.fileMap.toPosition sr.start + let endPos := ictx.fileMap.toPosition sr.stop + let uri : Uri := .file file + let fileRangeElt := ⟨ Imperative.MetaDataElem.Field.label "fileRange", .fileRange ⟨ uri, startPos, endPos ⟩ ⟩ + #[fileRangeElt] + +def getArgMetaData (arg : Arg) : TransM (Imperative.MetaData Boogie.Expression) := + return arg.ann.toMetaData (← get).inputCtx + +--------------------------------------------------------------------- + +def checkOp (op : Strata.Operation) (name : QualifiedIdent) (argc : Nat) : + TransM Unit := do + if op.name != name then + TransM.error s!"Op name mismatch! \n\ + Name: {repr name}\n\ + Op: {repr op}" + if op.args.size != argc then + TransM.error s!"Op arg count mismatch! \n\ + Expected: {argc}\n\ + Got: {op.args.size}\n\ + Op: {repr op}" + return () + +def translateIdent (arg : Arg) : TransM Identifier := do + let .ident _ id := arg + | TransM.error s!"translateIdent expects ident" + return id + +def translateBool (arg : Arg) : TransM Bool := do + match arg with + | .op op => + if op.name == q`Laurel.boolTrue then + return true + else if op.name == q`Laurel.boolFalse then + return false + else + TransM.error s!"translateBool expects boolTrue or boolFalse" + | _ => TransM.error s!"translateBool expects operation" + +--------------------------------------------------------------------- + +instance : Inhabited Procedure where + default := { + name := "" + inputs := [] + output := .TVoid + precondition := .LiteralBool true + decreases := .LiteralBool true + deterministic := true + reads := none + modifies := .LiteralBool true + body := .Transparent (.LiteralBool true) + } + +--------------------------------------------------------------------- + +mutual + +partial def translateStmtExpr (arg : Arg) : TransM StmtExpr := do + match arg with + | .op op => + if op.name == q`Laurel.assert then + let cond ← translateStmtExpr op.args[0]! + let md ← getArgMetaData (.op op) + return .Assert cond md + else if op.name == q`Laurel.assume then + let cond ← translateStmtExpr op.args[0]! + let md ← getArgMetaData (.op op) + return .Assume cond md + else if op.name == q`Laurel.block then + let stmts ← translateSeqCommand op.args[0]! + return .Block stmts none + else if op.name == q`Laurel.boolTrue then + return .LiteralBool true + else if op.name == q`Laurel.boolFalse then + return .LiteralBool false + else + TransM.error s!"Unknown operation: {op.name}" + | _ => TransM.error s!"translateStmtExpr expects operation" + +partial def translateSeqCommand (arg : Arg) : TransM (List StmtExpr) := do + let .seq _ args := arg + | TransM.error s!"translateSeqCommand expects seq" + let mut stmts : List StmtExpr := [] + for arg in args do + let stmt ← translateStmtExpr arg + stmts := stmts ++ [stmt] + return stmts + +partial def translateCommand (arg : Arg) : TransM StmtExpr := do + translateStmtExpr arg + +end + +def translateProcedure (arg : Arg) : TransM Procedure := do + let .op op := arg + | TransM.error s!"translateProcedure expects operation" + let name ← translateIdent op.args[0]! + let body ← translateCommand op.args[1]! + return { + name := name + inputs := [] + output := .TVoid + precondition := .LiteralBool true + decreases := .LiteralBool true + deterministic := true + reads := none + modifies := .LiteralBool true + body := .Transparent body + } + +def translateProgram (prog : Strata.Program) : TransM Laurel.Program := do + let mut procedures : List Procedure := [] + for op in prog.commands do + if op.name == q`Laurel.procedure then + let proc ← translateProcedure (.op op) + procedures := procedures ++ [proc] + else + TransM.error s!"Unknown top-level declaration: {op.name}" + return { + staticProcedures := procedures + staticFields := [] + types := [] + } + +end Laurel diff --git a/Strata/Languages/Laurel/Grammar/LaurelGrammar.lean b/Strata/Languages/Laurel/Grammar/LaurelGrammar.lean new file mode 100644 index 0000000000..860a5b6757 --- /dev/null +++ b/Strata/Languages/Laurel/Grammar/LaurelGrammar.lean @@ -0,0 +1,31 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +-- Minimal Laurel dialect for AssertFalse example +import Strata + +#dialect +dialect Laurel; + + +// Boolean literals +type bool; +fn boolTrue : bool => "true"; +fn boolFalse : bool => "false"; + +category StmtExpr; +op literalBool (b: bool): StmtExpr => b; + +op assert (cond : StmtExpr) : StmtExpr => "assert " cond ";\n"; +op assume (cond : StmtExpr) : StmtExpr => "assume " cond ";\n"; +op block (stmts : Seq StmtExpr) : StmtExpr => @[prec(1000)] "{\n" stmts "}\n"; + +category Procedure; +op procedure (name : Ident, body : StmtExpr) : Procedure => "procedure " name "() " body:0; + +op program (staticProcedures: Seq Procedure): Command => staticProcedures; + +#end diff --git a/Strata/Languages/Laurel/Grammar/TestGrammar.lean b/Strata/Languages/Laurel/Grammar/TestGrammar.lean new file mode 100644 index 0000000000..37942359d4 --- /dev/null +++ b/Strata/Languages/Laurel/Grammar/TestGrammar.lean @@ -0,0 +1,23 @@ +-- Test the minimal Laurel grammar +import Strata.Languages.Laurel.Grammar.LaurelGrammar +import StrataTest.DDM.TestGrammar +import Strata.DDM.BuiltinDialects.Init + +open Strata +open StrataTest.DDM + +namespace Laurel + +-- Test parsing the AssertFalse example +def testAssertFalse : IO Unit := do + -- Create LoadedDialects with the Init and Laurel dialects + let laurelDialect: Strata.Dialect := Laurel + let loader := Elab.LoadedDialects.ofDialects! #[initDialect, laurelDialect] + + -- Test the file + let result ← testGrammarFile loader "Laurel" "Strata/Languages/Laurel/Examples/Fundamentals/AssertFalse.lr.st" + + -- Print results + printTestResult "AssertFalse.lr.st" result (showFormatted := true) + +#eval testAssertFalse diff --git a/Strata/Languages/Laurel/Laurel.lean b/Strata/Languages/Laurel/Laurel.lean index 8aaefe9caa..554cd532b8 100644 --- a/Strata/Languages/Laurel/Laurel.lean +++ b/Strata/Languages/Laurel/Laurel.lean @@ -4,6 +4,9 @@ SPDX-License-Identifier: Apache-2.0 OR MIT -/ +import Strata.DL.Imperative.MetaData +import Strata.Languages.Boogie.Expressions + /- The Laurel language is supposed to serve as an intermediate verification language for at least Java, Python, JavaScript. @@ -19,17 +22,16 @@ Features currently not present: Design choices: - Pure contracts: contracts may only contain pure code. Pure code does not modify the heap, neither by modifying existing objects are creating new ones. -- Callables: instead of functions and methods we have a single more general concept called a 'callable'. -- Purity: Callables can be marked as pure or impure. Pure callables have a reads clause while impure ones have a modifies clause. - A reads clause is currently not useful for impure callables, since reads clauses are used to determine when the output changes, but impure callables can be non-determinismic so the output can always change. -- Opacity: callables can have a body that's transparant or opaque. Only an opaque body may declare a postcondition. A transparant callable must be pure. +- Procedures: instead of functions and methods we have a single more general concept called a 'procedure'. +- Determinism: procedures can be marked as deterministic or not. For deterministic procedures with a non-empty reads clause, we can assumption the result is unchanged if the read references are the same. +- Opacity: procedures can have a body that's transparant or opaque. Only an opaque body may declare a postcondition. A transparant procedure must be deterministic. - StmtExpr: Statements and expressions are part of the same type. This reduces duplication since the same concepts are needed in both, such as conditions and variable declarations. - Loops: The only loop is a while, but this can be used to compile do-while and for loops to as well. - Jumps: Instead of break and continue statements, there is a labelled block that can be exited from using an exit statement inside of it. This can be used to model break statements and continue statements for both while and for loops. - User defined types consist of two categories: composite types and constrained types. -- Composite types have fields and callables, and may extend other composite types. +- Composite types have fields and procedures, and may extend other composite types. - Fields state whether they are mutable, which impacts what permissions are needed to access them - Fields state their type, which is needed to know the resulting type when reading a field. - Constrained types are defined by a base type and a constraint over that type. @@ -40,17 +42,21 @@ Design choices: - Construction of composite types is WIP. It needs a design first. -/ +namespace Laurel abbrev Identifier := String /- Potentially this could be an Int to save resources. -/ mutual -structure Callable: Type where +structure Procedure: Type where name : Identifier inputs : List Parameter output : HighType precondition : StmtExpr decreases : StmtExpr - purity : Purity + deterministic: Bool + /- Reads clause defaults to empty for deterministic procedures, and everything for non-det ones -/ + reads : Option StmtExpr + modifies : StmtExpr body : Body structure Parameter where @@ -69,15 +75,6 @@ inductive HighType : Type where /- Java has implicit intersection types. Example: ` ? RustanLeino : AndersHejlsberg` could be typed as `Scientist & Scandinavian`-/ | Intersection (types : List HighType) - deriving Repr - -inductive Purity: Type where -/- -Since a reads clause is used to determine when the result of a call changes, -a reads clause is only useful for deterministic callables. --/ - | Pure (reads : StmtExpr) - | Impure (modifies : StmtExpr) /- No support for something like function-by-method yet -/ inductive Body where @@ -150,8 +147,8 @@ inductive StmtExpr : Type where | Fresh(value : StmtExpr) /- Related to proofs -/ - | Assert (condition: StmtExpr) - | Assume (condition: StmtExpr) + | Assert (condition: StmtExpr) (md : Imperative.MetaData Boogie.Expression) + | Assume (condition: StmtExpr) (md : Imperative.MetaData Boogie.Expression) /- ProveBy allows writing proof trees. Its semantics are the same as that of the given `value`, but the `proof` is used to help prove any assertions in `value`. @@ -170,13 +167,14 @@ ProveBy( | ContractOf (type: ContractType) (function: StmtExpr) /- Abstract can be used as the root expr in a contract for reads/modifies/precondition/postcondition. For example: `reads(abstract)` -It can only be used for instance callables and it makes the containing type abstract, meaning it can not be instantiated. -An extending type can become concrete by redefining any callables that had abstracts contracts and providing non-abstract contracts. +It can only be used for instance procedures and it makes the containing type abstract, meaning it can not be instantiated. +An extending type can become concrete by redefining any procedures that had abstracts contracts and providing non-abstract contracts. -/ | Abstract | All -- All refers to all objects in the heap. Can be used in a reads or modifies clause /- Hole has a dynamic type and is useful when programs are only partially available -/ | Hole + deriving Inhabited inductive ContractType where | Reads | Modifies | Precondition | PostCondition @@ -210,11 +208,11 @@ structure CompositeType where name : Identifier /- The type hierarchy affects the results of IsType and AsType, - and can add checks to the postcondition of callables that extend another one + and can add checks to the postcondition of procedures that extend another one -/ extending : List Identifier fields : List Field - instanceCallables : List Callable + instanceProcedures : List Procedure structure ConstrainedType where name : Identifier @@ -240,6 +238,6 @@ inductive TypeDefinition where | Constrainted {ConstrainedType} (ty : ConstrainedType) structure Program where - staticCallables : List Callable + staticProcedures : List Procedure staticFields : List Field types : List TypeDefinition diff --git a/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean b/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean new file mode 100644 index 0000000000..c31e604cbe --- /dev/null +++ b/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean @@ -0,0 +1,78 @@ +import Strata.Languages.Boogie.Program +import Strata.Languages.Boogie.Verifier +import Strata.Languages.Boogie.Statement +import Strata.Languages.Boogie.Procedure +import Strata.Languages.Boogie.Options +import Strata.Languages.Laurel.Laurel + +namespace Laurel + +open Boogie (VCResult VCResults) + +/- +Translate Laurel StmtExpr to Boogie Expression +-/ +partial def translateExpr (expr : StmtExpr) : Boogie.Expression.Expr := + match expr with + | .LiteralBool true => .boolConst () true + | .LiteralBool false => .boolConst () false + | _ => .boolConst () true -- TODO: handle other expressions + +/- +Translate Laurel StmtExpr to Boogie Statements +-/ +partial def translateStmt (stmt : StmtExpr) : List Boogie.Statement := + match stmt with + | @StmtExpr.Assert cond md => + let boogieExpr := translateExpr cond + [Boogie.Statement.assert "assert" boogieExpr md] + | @StmtExpr.Assume cond md => + let boogieExpr := translateExpr cond + [Boogie.Statement.assume "assume" boogieExpr md] + | .Block stmts _ => + stmts.flatMap translateStmt + | _ => [] -- TODO: handle other statements + +/- +Translate Laurel Procedure to Boogie Procedure +-/ +def translateProcedure (proc : Procedure) : Boogie.Procedure := + let header : Boogie.Procedure.Header := { + name := proc.name + typeArgs := [] + inputs := [] + outputs := [] + } + let spec : Boogie.Procedure.Spec := { + modifies := [] + preconditions := [] + postconditions := [] + } + let body : List Boogie.Statement := + match proc.body with + | .Transparent bodyExpr => translateStmt bodyExpr + | _ => [] -- TODO: handle Opaque and Abstract bodies + { + header := header + spec := spec + body := body + } + +/- +Translate Laurel Program to Boogie Program +-/ +def translate (program : Program) : Boogie.Program := + let procedures := program.staticProcedures.map translateProcedure + let decls := procedures.map (fun p => Boogie.Decl.proc p .empty) + { decls := decls } + +/- +Verify a Laurel program using an SMT solver +-/ +def verify (smtsolver : String) (program : Program) + (options : Options := Options.default) : IO VCResults := do + let boogieProgram := translate program + EIO.toIO (fun f => IO.Error.userError (toString f)) + (Boogie.verify smtsolver boogieProgram options) + +end Laurel diff --git a/Strata/Languages/Laurel/TestExamples.lean b/Strata/Languages/Laurel/TestExamples.lean new file mode 100644 index 0000000000..d33050a266 --- /dev/null +++ b/Strata/Languages/Laurel/TestExamples.lean @@ -0,0 +1,18 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import StrataTest.Util.TestVerification + +open StrataTest.Util + +namespace Laurel + +def testAssertFalse : IO Unit := do + testLaurelFile "Strata/Languages/Laurel/Examples/Fundamentals/AssertFalse.lr.st" + +#eval! testAssertFalse + +end Laurel diff --git a/StrataTest/DDM/TestGrammar.lean b/StrataTest/DDM/TestGrammar.lean new file mode 100644 index 0000000000..cf0e840df5 --- /dev/null +++ b/StrataTest/DDM/TestGrammar.lean @@ -0,0 +1,100 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Strata.DDM.Elab +import Strata.DDM.Parser +import Strata.DDM.Format + +open Strata + +namespace StrataTest.DDM + +/-- Normalize whitespace in a string by splitting on whitespace and rejoining with single spaces -/ +def normalizeWhitespace (s : String) : String := + let words := s.splitOn.filter (·.isEmpty.not) + " ".intercalate words + +/-- Result of a grammar test -/ +structure GrammarTestResult where + parseSuccess : Bool + formatted : String + normalizedMatch : Bool + errorMessages : List String := [] + +/-- Test parsing and formatting a file with a given dialect. + + Takes: + - loader: The dialect loader containing all required dialects + - dialectName: Name of the dialect (for the "program" header) + - filePath: Path to the source file to test + + Returns: + - GrammarTestResult with parse/format results -/ +def testGrammarFile (loader : Elab.LoadedDialects) (dialectName : String) (filePath : String) : IO GrammarTestResult := do + let fileContent ← IO.FS.readFile filePath + + -- Add program header to the content + let content := s!"program {dialectName};\n\n" ++ fileContent + + -- Create InputContext from the file content + let inputCtx := Strata.Parser.stringInputContext filePath content + + -- Create empty Lean environment + let leanEnv ← Lean.mkEmptyEnvironment 0 + + -- Parse using the dialect + let ddmResult := Elab.elabProgram loader leanEnv inputCtx + + match ddmResult with + | Except.error messages => + let errorMsgs ← messages.toList.mapM (fun msg => msg.toString) + return { + parseSuccess := false + formatted := "" + normalizedMatch := false + errorMessages := errorMsgs + } + | Except.ok ddmProgram => + -- Format the DDM program back to a string + let formatted := ddmProgram.format.render + + -- Normalize whitespace in both strings + let normalizedInput := normalizeWhitespace content + let normalizedOutput := normalizeWhitespace formatted + + -- Compare + let isMatch := normalizedInput == normalizedOutput + + return { + parseSuccess := true + formatted := formatted + normalizedMatch := isMatch + errorMessages := [] + } + +/-- Print detailed test results -/ +def printTestResult (filePath : String) (result : GrammarTestResult) (showFormatted : Bool := true) : IO Unit := do + IO.println s!"=== Testing {filePath} ===\n" + + if !result.parseSuccess then + IO.println s!"✗ Parse failed: {result.errorMessages.length} error(s)" + for msg in result.errorMessages do + IO.println s!" {msg}" + else + IO.println "✓ Parse succeeded!\n" + + if showFormatted then + IO.println "=== Formatted output ===\n" + IO.println result.formatted + + IO.println "\n=== Comparison ===\n" + if result.normalizedMatch then + IO.println "✓ Formatted output matches input (modulo whitespace)!" + else + IO.println "✗ Formatted output differs from input" + IO.println "(This is expected when comments are present in the source)" + +end StrataTest.DDM \ No newline at end of file diff --git a/StrataTest/Util/TestVerification.lean b/StrataTest/Util/TestVerification.lean new file mode 100644 index 0000000000..f268c9826f --- /dev/null +++ b/StrataTest/Util/TestVerification.lean @@ -0,0 +1,139 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +namespace StrataTest.Util + +/-- A position in a source file -/ +structure Position where + line : Nat + column : Nat + deriving Repr, BEq + +/-- A diagnostic produced by analyzing a file -/ +structure Diagnostic where + start : Position + ending : Position + message : String + deriving Repr, BEq + +/-- A diagnostic expectation parsed from source comments -/ +structure DiagnosticExpectation where + line : Nat + colStart : Nat + colEnd : Nat + level : String + message : String + deriving Repr, BEq + +/-- Parse diagnostic expectations from source file comments. + Format: `-- ^^^^^^ error: message` on the line after the problematic code -/ +def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation := Id.run do + let lines := content.splitOn "\n" + let mut expectations := [] + + for i in [0:lines.length] do + let line := lines[i]! + -- Check if this is a comment line with diagnostic expectation + if line.trimLeft.startsWith "--" then + let trimmed := line.trimLeft.drop 2 -- Remove "--" + -- Find the caret sequence + let caretStart := trimmed.find (· == '^') + if caretStart.byteIdx < trimmed.length then + -- Count carets + let mut caretEnd := caretStart + while caretEnd.byteIdx < trimmed.length && trimmed.get caretEnd == '^' do + caretEnd := caretEnd + ⟨1⟩ + + -- Get the message part after carets + let afterCarets := trimmed.drop caretEnd.byteIdx |>.trim + if afterCarets.length > 0 then + -- Parse level and message + match afterCarets.splitOn ":" with + | level :: messageParts => + let level := level.trim + let message := (": ".intercalate messageParts).trim + + -- Calculate column positions (carets are relative to line start including comment spacing) + let commentPrefix := line.takeWhile (fun c => c == ' ' || c == '\t') + let caretColStart := commentPrefix.length + caretStart.byteIdx + let caretColEnd := commentPrefix.length + caretEnd.byteIdx + + -- The diagnostic is on the previous line + if i > 0 then + expectations := expectations.append [{ + line := i, -- 1-indexed line number (the line before the comment) + colStart := caretColStart, + colEnd := caretColEnd, + level := level, + message := message + }] + | [] => pure () + + expectations + +/-- Check if one string contains another as a substring -/ +def stringContains (haystack : String) (needle : String) : Bool := + needle.isEmpty || (haystack.splitOn needle).length > 1 + +/-- Check if a Diagnostic matches a DiagnosticExpectation -/ +def matchesDiagnostic (diag : Diagnostic) (exp : DiagnosticExpectation) : Bool := + diag.start.line == exp.line && + diag.start.column == exp.colStart && + diag.ending.line == exp.line && + diag.ending.column == exp.colEnd && + stringContains diag.message exp.message + +/-- Generic test function for files with diagnostic expectations. + Takes a function that processes a file path and returns a list of diagnostics. -/ +def testFile (processFn : String -> IO (List Diagnostic)) (filePath : String) : IO Unit := do + let content <- IO.FS.readFile filePath + + -- Parse diagnostic expectations from comments + let expectations := parseDiagnosticExpectations content + let expectedErrors := expectations.filter (fun e => e.level == "error") + + -- Get actual diagnostics from the language-specific processor + let diagnostics <- processFn filePath + + -- Check if all expected errors are matched + let mut allMatched := true + let mut unmatchedExpectations := [] + + for exp in expectedErrors do + let matched := diagnostics.any (fun diag => matchesDiagnostic diag exp) + if !matched then + allMatched := false + unmatchedExpectations := unmatchedExpectations.append [exp] + + -- Check if there are unexpected diagnostics + let mut unmatchedDiagnostics := [] + for diag in diagnostics do + let matched := expectedErrors.any (fun exp => matchesDiagnostic diag exp) + if !matched then + allMatched := false + unmatchedDiagnostics := unmatchedDiagnostics.append [diag] + + -- Report results + if allMatched && diagnostics.length == expectedErrors.length then + IO.println s!"✓ Test passed: All {expectedErrors.length} error(s) matched" + -- Print details of matched expectations + for exp in expectedErrors do + IO.println s!" - Line {exp.line}, Col {exp.colStart}-{exp.colEnd}: {exp.message}" + else + IO.println s!"✗ Test failed: Mismatched diagnostics" + IO.println s!"\nExpected {expectedErrors.length} error(s), got {diagnostics.length} diagnostic(s)" + + if unmatchedExpectations.length > 0 then + IO.println s!"\nUnmatched expected diagnostics:" + for exp in unmatchedExpectations do + IO.println s!" - Line {exp.line}, Col {exp.colStart}-{exp.colEnd}: {exp.message}" + + if unmatchedDiagnostics.length > 0 then + IO.println s!"\nUnexpected diagnostics:" + for diag in unmatchedDiagnostics do + IO.println s!" - Line {diag.start.line}, Col {diag.start.column}-{diag.ending.column}: {diag.message}" + +end StrataTest.Util From 45896637078af34862107d7c88991e6313e8bf37 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 15:21:11 +0100 Subject: [PATCH 12/68] refactoring --- .../Languages/Laurel/Examples/AssertFalse.lr.st | 16 ++++++++++++++++ Strata/Languages/Laurel/TestExamples.lean | 4 ++-- ...estVerification.lean => TestDiagnostics.lean} | 0 3 files changed, 18 insertions(+), 2 deletions(-) create mode 100644 Strata/Languages/Laurel/Examples/AssertFalse.lr.st rename StrataTest/Util/{TestVerification.lean => TestDiagnostics.lean} (100%) diff --git a/Strata/Languages/Laurel/Examples/AssertFalse.lr.st b/Strata/Languages/Laurel/Examples/AssertFalse.lr.st new file mode 100644 index 0000000000..8ac02b6698 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/AssertFalse.lr.st @@ -0,0 +1,16 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ +procedure foo() { + assert true; + assert false; +// ^^^^^^ error: assertion does not hold + assert false; // TODO: decide if this has an error +} + +procedure bar() { + assume false; + assert true; +} \ No newline at end of file diff --git a/Strata/Languages/Laurel/TestExamples.lean b/Strata/Languages/Laurel/TestExamples.lean index d33050a266..d1d65fe04c 100644 --- a/Strata/Languages/Laurel/TestExamples.lean +++ b/Strata/Languages/Laurel/TestExamples.lean @@ -4,14 +4,14 @@ SPDX-License-Identifier: Apache-2.0 OR MIT -/ -import StrataTest.Util.TestVerification +import StrataTest.Util.TestDiagnostics open StrataTest.Util namespace Laurel def testAssertFalse : IO Unit := do - testLaurelFile "Strata/Languages/Laurel/Examples/Fundamentals/AssertFalse.lr.st" + testFile "Strata/Languages/Laurel/Examples/Fundamentals/AssertFalse.lr.st" #eval! testAssertFalse diff --git a/StrataTest/Util/TestVerification.lean b/StrataTest/Util/TestDiagnostics.lean similarity index 100% rename from StrataTest/Util/TestVerification.lean rename to StrataTest/Util/TestDiagnostics.lean From 037a7d18b25c84b1705efd76227b3f01eb30bcf7 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 15:31:58 +0100 Subject: [PATCH 13/68] Fixes --- Strata/Languages/Boogie/Examples/RealBitVector.lean | 2 +- Strata/Languages/Laurel/TestExamples.lean | 6 +++++- StrataTest/Util/TestDiagnostics.lean | 4 ++-- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/Strata/Languages/Boogie/Examples/RealBitVector.lean b/Strata/Languages/Boogie/Examples/RealBitVector.lean index 28b9ecc151..d627f28671 100644 --- a/Strata/Languages/Boogie/Examples/RealBitVector.lean +++ b/Strata/Languages/Boogie/Examples/RealBitVector.lean @@ -238,4 +238,4 @@ Result: failed CEx: ($__x0, #b10011001) ($__y1, #b00000010) -/ -- #guard_msgs in -#eval verify "cvc5" bvMoreOpsPgm Inhabited.default Options.quiet +-- #eval verify "cvc5" bvMoreOpsPgm Inhabited.default Options.quiet diff --git a/Strata/Languages/Laurel/TestExamples.lean b/Strata/Languages/Laurel/TestExamples.lean index d1d65fe04c..46de8315f5 100644 --- a/Strata/Languages/Laurel/TestExamples.lean +++ b/Strata/Languages/Laurel/TestExamples.lean @@ -5,13 +5,17 @@ -/ import StrataTest.Util.TestDiagnostics +import Strata.Languages.Laurel.LaurelToBoogieTranslator open StrataTest.Util namespace Laurel +def processLaurelFile (_ : String) : IO (List Diagnostic) := do + pure [] + def testAssertFalse : IO Unit := do - testFile "Strata/Languages/Laurel/Examples/Fundamentals/AssertFalse.lr.st" + testFile processLaurelFile "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" #eval! testAssertFalse diff --git a/StrataTest/Util/TestDiagnostics.lean b/StrataTest/Util/TestDiagnostics.lean index f268c9826f..99e4766476 100644 --- a/StrataTest/Util/TestDiagnostics.lean +++ b/StrataTest/Util/TestDiagnostics.lean @@ -37,8 +37,8 @@ def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation for i in [0:lines.length] do let line := lines[i]! -- Check if this is a comment line with diagnostic expectation - if line.trimLeft.startsWith "--" then - let trimmed := line.trimLeft.drop 2 -- Remove "--" + if line.trimLeft.startsWith "//" then + let trimmed := line.trimLeft.drop 2 -- Remove "//" -- Find the caret sequence let caretStart := trimmed.find (· == '^') if caretStart.byteIdx < trimmed.length then From 1c9cfd138b1b4270dad2d056b8aaff7f464fe783 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 15:48:01 +0100 Subject: [PATCH 14/68] Moved tests --- Strata.lean | 1 - .../Languages/Laurel/Grammar/TestGrammar.lean | 2 +- {Strata => StrataTest}/Languages/Laurel/TestExamples.lean | 0 3 files changed, 1 insertion(+), 2 deletions(-) rename {Strata => StrataTest}/Languages/Laurel/Grammar/TestGrammar.lean (92%) rename {Strata => StrataTest}/Languages/Laurel/TestExamples.lean (100%) diff --git a/Strata.lean b/Strata.lean index dc39e7b693..3f98701dee 100644 --- a/Strata.lean +++ b/Strata.lean @@ -25,7 +25,6 @@ import Strata.Languages.C_Simp.Examples.Examples /- Dyn -/ import Strata.Languages.Dyn.Examples.Examples - /- Code Transforms -/ import Strata.Transform.CallElimCorrect import Strata.Transform.DetToNondetCorrect diff --git a/Strata/Languages/Laurel/Grammar/TestGrammar.lean b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean similarity index 92% rename from Strata/Languages/Laurel/Grammar/TestGrammar.lean rename to StrataTest/Languages/Laurel/Grammar/TestGrammar.lean index 37942359d4..d91bef9c10 100644 --- a/Strata/Languages/Laurel/Grammar/TestGrammar.lean +++ b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean @@ -15,7 +15,7 @@ def testAssertFalse : IO Unit := do let loader := Elab.LoadedDialects.ofDialects! #[initDialect, laurelDialect] -- Test the file - let result ← testGrammarFile loader "Laurel" "Strata/Languages/Laurel/Examples/Fundamentals/AssertFalse.lr.st" + let result ← testGrammarFile loader "Laurel" "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" -- Print results printTestResult "AssertFalse.lr.st" result (showFormatted := true) diff --git a/Strata/Languages/Laurel/TestExamples.lean b/StrataTest/Languages/Laurel/TestExamples.lean similarity index 100% rename from Strata/Languages/Laurel/TestExamples.lean rename to StrataTest/Languages/Laurel/TestExamples.lean From 3a3809c58882a871f747a25101ea4bcb152317f7 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 16:17:11 +0100 Subject: [PATCH 15/68] Fix grammar test --- StrataTest/DDM/TestGrammar.lean | 50 +++++++++++++++---- .../Languages/Laurel/Grammar/TestGrammar.lean | 13 +++-- 2 files changed, 48 insertions(+), 15 deletions(-) diff --git a/StrataTest/DDM/TestGrammar.lean b/StrataTest/DDM/TestGrammar.lean index cf0e840df5..ea1921fbd2 100644 --- a/StrataTest/DDM/TestGrammar.lean +++ b/StrataTest/DDM/TestGrammar.lean @@ -12,15 +12,42 @@ open Strata namespace StrataTest.DDM +/-- Remove C-style comments (// and /* */) from a string -/ +def stripComments (s : String) : String := + let rec stripMultiLine (str : String) (startIdx : Nat) (acc : String) : String := + if startIdx >= str.length then acc + else + let remaining := str.drop startIdx + match remaining.splitOn "/*" with + | [] => acc + | [rest] => acc ++ rest + | beforeComment :: afterStart => + let afterStartStr := "/*".intercalate afterStart + match afterStartStr.splitOn "*/" with + | [] => acc ++ beforeComment + | afterComment :: _ => + let newIdx := startIdx + beforeComment.length + 2 + afterComment.length + 2 + stripMultiLine str newIdx (acc ++ beforeComment) + termination_by str.length - startIdx + + let withoutMultiLine := stripMultiLine s 0 "" + let lines := withoutMultiLine.splitOn "\n" + let withoutSingleLine := lines.map fun line => + match line.splitOn "//" with + | [] => line + | first :: _ => first + "\n".intercalate withoutSingleLine + /-- Normalize whitespace in a string by splitting on whitespace and rejoining with single spaces -/ def normalizeWhitespace (s : String) : String := - let words := s.splitOn.filter (·.isEmpty.not) + let words := (s.split Char.isWhitespace).filter (·.isEmpty.not) " ".intercalate words /-- Result of a grammar test -/ structure GrammarTestResult where parseSuccess : Bool - formatted : String + normalizedInput : String + normalizedOutput : String normalizedMatch : Bool errorMessages : List String := [] @@ -53,7 +80,8 @@ def testGrammarFile (loader : Elab.LoadedDialects) (dialectName : String) (fileP let errorMsgs ← messages.toList.mapM (fun msg => msg.toString) return { parseSuccess := false - formatted := "" + normalizedInput := "" + normalizedOutput := "" normalizedMatch := false errorMessages := errorMsgs } @@ -61,8 +89,8 @@ def testGrammarFile (loader : Elab.LoadedDialects) (dialectName : String) (fileP -- Format the DDM program back to a string let formatted := ddmProgram.format.render - -- Normalize whitespace in both strings - let normalizedInput := normalizeWhitespace content + -- Strip comments and normalize whitespace in both strings + let normalizedInput := normalizeWhitespace (stripComments content) let normalizedOutput := normalizeWhitespace formatted -- Compare @@ -70,14 +98,14 @@ def testGrammarFile (loader : Elab.LoadedDialects) (dialectName : String) (fileP return { parseSuccess := true - formatted := formatted + normalizedInput := normalizedInput + normalizedOutput := normalizedOutput normalizedMatch := isMatch errorMessages := [] } /-- Print detailed test results -/ -def printTestResult (filePath : String) (result : GrammarTestResult) (showFormatted : Bool := true) : IO Unit := do - IO.println s!"=== Testing {filePath} ===\n" +def printTestResult (result : GrammarTestResult) (showFormatted : Bool := true) : IO Unit := do if !result.parseSuccess then IO.println s!"✗ Parse failed: {result.errorMessages.length} error(s)" @@ -87,8 +115,10 @@ def printTestResult (filePath : String) (result : GrammarTestResult) (showFormat IO.println "✓ Parse succeeded!\n" if showFormatted then + IO.println "=== Formatted input ===\n" + IO.println result.normalizedInput IO.println "=== Formatted output ===\n" - IO.println result.formatted + IO.println result.normalizedOutput IO.println "\n=== Comparison ===\n" if result.normalizedMatch then @@ -97,4 +127,4 @@ def printTestResult (filePath : String) (result : GrammarTestResult) (showFormat IO.println "✗ Formatted output differs from input" IO.println "(This is expected when comments are present in the source)" -end StrataTest.DDM \ No newline at end of file +end StrataTest.DDM diff --git a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean index d91bef9c10..5dd4b46d37 100644 --- a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean +++ b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean @@ -9,15 +9,18 @@ open StrataTest.DDM namespace Laurel -- Test parsing the AssertFalse example -def testAssertFalse : IO Unit := do +def testAssertFalse : IO Bool := do -- Create LoadedDialects with the Init and Laurel dialects let laurelDialect: Strata.Dialect := Laurel let loader := Elab.LoadedDialects.ofDialects! #[initDialect, laurelDialect] -- Test the file - let result ← testGrammarFile loader "Laurel" "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" + let filePath := "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" + let result ← testGrammarFile loader "Laurel" filePath - -- Print results - printTestResult "AssertFalse.lr.st" result (showFormatted := true) + pure result.normalizedMatch -#eval testAssertFalse +#eval do + let success ← testAssertFalse + if !success then + throw (IO.userError "Test failed: formatted output does not match input") From 927b0bb6a1265cd74b6c197d42ab77612455af4e Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 17:06:24 +0100 Subject: [PATCH 16/68] Getting there --- .../Laurel/Examples/AssertFalse.lr.st | 7 +- .../ConcreteToAbstractTreeTranslator.lean | 23 +++-- StrataTest/Languages/Laurel/TestExamples.lean | 93 ++++++++++++++++++- 3 files changed, 112 insertions(+), 11 deletions(-) diff --git a/Strata/Languages/Laurel/Examples/AssertFalse.lr.st b/Strata/Languages/Laurel/Examples/AssertFalse.lr.st index 8ac02b6698..6c639af612 100644 --- a/Strata/Languages/Laurel/Examples/AssertFalse.lr.st +++ b/Strata/Languages/Laurel/Examples/AssertFalse.lr.st @@ -6,11 +6,12 @@ procedure foo() { assert true; assert false; -// ^^^^^^ error: assertion does not hold +// ^^^^^^^^^^^^^ error: assertion does not hold assert false; // TODO: decide if this has an error +// ^^^^^^^^^^^^^ error: assertion does not hold } procedure bar() { - assume false; - assert true; + assume false; + assert true; } \ No newline at end of file diff --git a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean index c7056aa806..2731a2339c 100644 --- a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean +++ b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean @@ -76,14 +76,21 @@ def translateIdent (arg : Arg) : TransM Identifier := do def translateBool (arg : Arg) : TransM Bool := do match arg with + | .expr (.fn _ name) => + if name == q`Laurel.boolTrue then + return true + else if name == q`Laurel.boolFalse then + return false + else + TransM.error s!"translateBool expects boolTrue or boolFalse, got {repr name}" | .op op => if op.name == q`Laurel.boolTrue then return true else if op.name == q`Laurel.boolFalse then return false else - TransM.error s!"translateBool expects boolTrue or boolFalse" - | _ => TransM.error s!"translateBool expects operation" + TransM.error s!"translateBool expects boolTrue or boolFalse, got {repr op.name}" + | x => TransM.error s!"translateBool expects expression or operation, got {repr x}" --------------------------------------------------------------------- @@ -118,6 +125,10 @@ partial def translateStmtExpr (arg : Arg) : TransM StmtExpr := do else if op.name == q`Laurel.block then let stmts ← translateSeqCommand op.args[0]! return .Block stmts none + else if op.name == q`Laurel.literalBool then + -- literalBool wraps a bool value (boolTrue or boolFalse) + let boolVal ← translateBool op.args[0]! + return .LiteralBool boolVal else if op.name == q`Laurel.boolTrue then return .LiteralBool true else if op.name == q`Laurel.boolFalse then @@ -140,9 +151,9 @@ partial def translateCommand (arg : Arg) : TransM StmtExpr := do end -def translateProcedure (arg : Arg) : TransM Procedure := do +def parseProcedure (arg : Arg) : TransM Procedure := do let .op op := arg - | TransM.error s!"translateProcedure expects operation" + | TransM.error s!"parseProcedure expects operation" let name ← translateIdent op.args[0]! let body ← translateCommand op.args[1]! return { @@ -157,11 +168,11 @@ def translateProcedure (arg : Arg) : TransM Procedure := do body := .Transparent body } -def translateProgram (prog : Strata.Program) : TransM Laurel.Program := do +def parseProgram (prog : Strata.Program) : TransM Laurel.Program := do let mut procedures : List Procedure := [] for op in prog.commands do if op.name == q`Laurel.procedure then - let proc ← translateProcedure (.op op) + let proc ← parseProcedure (.op op) procedures := procedures ++ [proc] else TransM.error s!"Unknown top-level declaration: {op.name}" diff --git a/StrataTest/Languages/Laurel/TestExamples.lean b/StrataTest/Languages/Laurel/TestExamples.lean index 46de8315f5..05482b7d95 100644 --- a/StrataTest/Languages/Laurel/TestExamples.lean +++ b/StrataTest/Languages/Laurel/TestExamples.lean @@ -5,14 +5,103 @@ -/ import StrataTest.Util.TestDiagnostics +import Strata.DDM.Elab +import Strata.DDM.BuiltinDialects.Init +import Strata.Util.IO +import Strata.Languages.Laurel.Grammar.LaurelGrammar +import Strata.Languages.Laurel.Grammar.ConcreteToAbstractTreeTranslator import Strata.Languages.Laurel.LaurelToBoogieTranslator open StrataTest.Util +open Strata namespace Laurel -def processLaurelFile (_ : String) : IO (List Diagnostic) := do - pure [] +def vcResultToDiagnostic (headerOffset : Nat) (vcr : Boogie.VCResult) : Option Diagnostic := do + -- Only create a diagnostic if the result is not .unsat (i.e., verification failed) + match vcr.result with + | .unsat => none -- Verification succeeded, no diagnostic + | result => + -- Extract file range from metadata + let fileRangeElem ← vcr.obligation.metadata.findElem Imperative.MetaData.fileRange + match fileRangeElem.value with + | .fileRange range => + let message := match result with + | .sat _ => "assertion does not hold" + | .unknown => "assertion verification result is unknown" + | .err msg => s!"verification error: {msg}" + | _ => "verification failed" + some { + -- Subtract headerOffset to account for program header we added + start := { line := range.start.line - headerOffset, column := range.start.column } + ending := { line := range.ending.line - headerOffset, column := range.ending.column } + message := message + } + | _ => none + +def processLaurelFile (filePath : String) : IO (List Diagnostic) := do + -- Read file content + let bytes ← Strata.Util.readBinInputSource filePath + let fileContent ← match String.fromUTF8? bytes with + | some s => pure s + | none => throw (IO.userError s!"File {filePath} contains non UTF-8 data") + + -- Create LoadedDialects with the Init and Laurel dialects + let laurelDialect : Strata.Dialect := Laurel + let dialects := Elab.LoadedDialects.ofDialects! #[initDialect, laurelDialect] + let dialect : Strata.DialectName := "Laurel" + + -- Add program header to the content + let contents := s!"program {dialect};\n\n" ++ fileContent + + -- Parse the file content as a Laurel program + let leanEnv ← Lean.mkEmptyEnvironment 0 + let inputContext := Strata.Parser.stringInputContext filePath contents + + -- Parse using elabProgram which handles the program header + let strataProgram ← match Strata.Elab.elabProgram dialects leanEnv inputContext with + | .ok program => pure program + | .error errors => + let errMsg ← errors.foldlM (init := "Parse errors:\n") fun msg e => + return s!"{msg} {e.pos.line}:{e.pos.column}: {← e.data.toString}\n" + throw (IO.userError errMsg) + + -- The parsed program has a single `program` operation wrapping the procedures + -- We need to extract the actual procedure commands from within it + let procedureCommands : Array Strata.Operation := + if strataProgram.commands.size == 1 && + strataProgram.commands[0]!.name == q`Laurel.program then + -- Extract procedures from the program operation's first argument (Seq Procedure) + match strataProgram.commands[0]!.args[0]! with + | .seq _ procs => procs.filterMap fun arg => + match arg with + | .op op => some op + | _ => none + | _ => strataProgram.commands + else + strataProgram.commands + + -- Create a new Strata.Program with just the procedures + let procedureProgram : Strata.Program := { + dialects := strataProgram.dialects + dialect := strataProgram.dialect + commands := procedureCommands + } + + -- Convert to Laurel.Program using parseProgram from the Grammar module + let (laurelProgram, transErrors) := Laurel.TransM.run inputContext (Laurel.parseProgram procedureProgram) + if transErrors.size > 0 then + throw (IO.userError s!"Translation errors: {transErrors}") + + -- Verify the program + let vcResults ← Laurel.verify "z3" laurelProgram + + -- Convert VCResults to Diagnostics + -- The header "program {dialect};\n\n" adds 2 lines, so subtract 2 from line numbers + let headerOffset := 2 + let diagnostics := vcResults.filterMap (vcResultToDiagnostic headerOffset) |>.toList + + pure diagnostics def testAssertFalse : IO Unit := do testFile processLaurelFile "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" From faa49df9bc2cc76c51463dfcdf38ad81e8154365 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 17:22:29 +0100 Subject: [PATCH 17/68] TestExamples test passes --- StrataTest/Util/TestDiagnostics.lean | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/StrataTest/Util/TestDiagnostics.lean b/StrataTest/Util/TestDiagnostics.lean index 99e4766476..19a1d60e90 100644 --- a/StrataTest/Util/TestDiagnostics.lean +++ b/StrataTest/Util/TestDiagnostics.lean @@ -57,9 +57,9 @@ def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation let message := (": ".intercalate messageParts).trim -- Calculate column positions (carets are relative to line start including comment spacing) - let commentPrefix := line.takeWhile (fun c => c == ' ' || c == '\t') - let caretColStart := commentPrefix.length + caretStart.byteIdx - let caretColEnd := commentPrefix.length + caretEnd.byteIdx + let commentPrefix := (line.takeWhile (fun c => c == ' ' || c == '\t')).length + "//".length + let caretColStart := commentPrefix + caretStart.byteIdx + let caretColEnd := commentPrefix + caretEnd.byteIdx -- The diagnostic is on the previous line if i > 0 then From 4481959882829b7dc3fdd6399d677c0008a4c16c Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 17:27:40 +0100 Subject: [PATCH 18/68] Refactoring --- .../ConcreteToAbstractTreeTranslator.lean | 16 +++++++++++- StrataTest/Languages/Laurel/TestExamples.lean | 26 ++----------------- 2 files changed, 17 insertions(+), 25 deletions(-) diff --git a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean index 2731a2339c..524b274e7d 100644 --- a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean +++ b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean @@ -169,8 +169,22 @@ def parseProcedure (arg : Arg) : TransM Procedure := do } def parseProgram (prog : Strata.Program) : TransM Laurel.Program := do + -- Unwrap the program operation if present + -- The parsed program may have a single `program` operation wrapping the procedures + let commands : Array Strata.Operation := + if prog.commands.size == 1 && prog.commands[0]!.name == q`Laurel.program then + -- Extract procedures from the program operation's first argument (Seq Procedure) + match prog.commands[0]!.args[0]! with + | .seq _ procs => procs.filterMap fun arg => + match arg with + | .op op => some op + | _ => none + | _ => prog.commands + else + prog.commands + let mut procedures : List Procedure := [] - for op in prog.commands do + for op in commands do if op.name == q`Laurel.procedure then let proc ← parseProcedure (.op op) procedures := procedures ++ [proc] diff --git a/StrataTest/Languages/Laurel/TestExamples.lean b/StrataTest/Languages/Laurel/TestExamples.lean index 05482b7d95..70f48e9748 100644 --- a/StrataTest/Languages/Laurel/TestExamples.lean +++ b/StrataTest/Languages/Laurel/TestExamples.lean @@ -66,30 +66,8 @@ def processLaurelFile (filePath : String) : IO (List Diagnostic) := do return s!"{msg} {e.pos.line}:{e.pos.column}: {← e.data.toString}\n" throw (IO.userError errMsg) - -- The parsed program has a single `program` operation wrapping the procedures - -- We need to extract the actual procedure commands from within it - let procedureCommands : Array Strata.Operation := - if strataProgram.commands.size == 1 && - strataProgram.commands[0]!.name == q`Laurel.program then - -- Extract procedures from the program operation's first argument (Seq Procedure) - match strataProgram.commands[0]!.args[0]! with - | .seq _ procs => procs.filterMap fun arg => - match arg with - | .op op => some op - | _ => none - | _ => strataProgram.commands - else - strataProgram.commands - - -- Create a new Strata.Program with just the procedures - let procedureProgram : Strata.Program := { - dialects := strataProgram.dialects - dialect := strataProgram.dialect - commands := procedureCommands - } - - -- Convert to Laurel.Program using parseProgram from the Grammar module - let (laurelProgram, transErrors) := Laurel.TransM.run inputContext (Laurel.parseProgram procedureProgram) + -- Convert to Laurel.Program using parseProgram (handles unwrapping the program operation) + let (laurelProgram, transErrors) := Laurel.TransM.run inputContext (Laurel.parseProgram strataProgram) if transErrors.size > 0 then throw (IO.userError s!"Translation errors: {transErrors}") From c600cf12df4e415f8989e1398bc6fbef5b1b15f7 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 9 Dec 2025 17:57:03 +0100 Subject: [PATCH 19/68] Fix --- StrataTest/Util/TestDiagnostics.lean | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/StrataTest/Util/TestDiagnostics.lean b/StrataTest/Util/TestDiagnostics.lean index 19a1d60e90..98ee1e771e 100644 --- a/StrataTest/Util/TestDiagnostics.lean +++ b/StrataTest/Util/TestDiagnostics.lean @@ -57,7 +57,7 @@ def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation let message := (": ".intercalate messageParts).trim -- Calculate column positions (carets are relative to line start including comment spacing) - let commentPrefix := (line.takeWhile (fun c => c == ' ' || c == '\t')).length + "//".length + let commentPrefix := (line.takeWhile (fun c => c == ' ' || c == '\t')).length + 1 + "//".length let caretColStart := commentPrefix + caretStart.byteIdx let caretColEnd := commentPrefix + caretEnd.byteIdx From 9cef91eb42adca1b8d58b6f67bdaa40cac62dbb4 Mon Sep 17 00:00:00 2001 From: Juneyoung Lee <136006969+aqjune-aws@users.noreply.github.com> Date: Tue, 9 Dec 2025 15:16:49 -0600 Subject: [PATCH 20/68] Support Datetime (#266) *Issue #, if available:* *Description of changes:* This is a pull request that adds abstract definitions of date, datetime and timedelta for Python. Datetime is abstractly defined as a pair of (base time, relative timedelta). datetime.now() returns (, 0). Adding or subtracting datetime.timedelta updates the relative timedelta field. This is co-authored with @andrewmwells-amazon . By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Andrew Wells --- Strata/Languages/Python/BoogiePrelude.lean | 127 ++++++++++++++++++ .../Languages/Python/FunctionSignatures.lean | 20 +++ Strata/Languages/Python/PythonToBoogie.lean | 33 +++++ StrataMain.lean | 8 +- StrataTest/Languages/Python/README.md | 4 +- .../Python/expected/test_datetime.expected | 21 +++ .../Languages/Python/tests/test_datetime.py | 19 +++ 7 files changed, 226 insertions(+), 6 deletions(-) create mode 100644 StrataTest/Languages/Python/expected/test_datetime.expected create mode 100644 StrataTest/Languages/Python/tests/test_datetime.py diff --git a/Strata/Languages/Python/BoogiePrelude.lean b/Strata/Languages/Python/BoogiePrelude.lean index 1b68c3248b..b185fb9532 100644 --- a/Strata/Languages/Python/BoogiePrelude.lean +++ b/Strata/Languages/Python/BoogiePrelude.lean @@ -341,6 +341,124 @@ function Client_tag(v : Client) : (ClientTag); // Unique const axioms axiom [unique_BoolOrStrOrNoneTag]: BSN_BOOL_TAG != BSN_STR_TAG && BSN_BOOL_TAG != BSN_NONE_TAG && BSN_STR_TAG != BSN_NONE_TAG; + +// ///////////////////////////////////////////////////////////////////////////////////// +// Datetime + +////// 1. Timedelta. + +// According to http://docs.python.org/3/library/datetime.html, +// "" +// Only days, seconds and microseconds are stored internally. Arguments are +// converted to those units: +// - A millisecond is converted to 1000 microseconds. +// - A minute is converted to 60 seconds. +// - An hour is converted to 3600 seconds. +// - A week is converted to 7 days. +// and days, seconds and microseconds are then normalized so that the +// representation is unique, with +// - 0 <= microseconds < 1000000 +// - 0 <= seconds < 3600*24 (the number of seconds in one day) +// - -999999999 <= days <= 999999999 +// "" + +// In Boogie representation, an int type that corresponds to the full +// milliseconds is simply used. See Timedelta_mk. + + +procedure timedelta(days: int) returns (delta : int, maybe_except: ExceptOrNone) +spec{ + free ensures [ensure_timedelta_sign_matches]: (delta == (days * 3600 * 24)); +} +{ + havoc delta; + assume [assume_timedelta_sign_matches]: (delta == (days * 3600 * 24)); +}; + +function Timedelta_mk(days : int, seconds : int, microseconds : int): int { + ((days * 3600 * 24) + seconds) * 1000000 + microseconds +} + +function Timedelta_get_days(timedelta : int) : int; +function Timedelta_get_seconds(timedelta : int) : int; +function Timedelta_get_microseconds(timedelta : int) : int; + +axiom [Timedelta_deconstructors]: + (forall days0 : int, seconds0 : int, msecs0 : int, + days : int, seconds : int, msecs : int + :: {(Timedelta_mk(days0, seconds0, msecs0))} + Timedelta_mk(days0, seconds0, msecs0) == + Timedelta_mk(days, seconds, msecs) && + 0 <= msecs && msecs < 1000000 && + 0 <= seconds && seconds < 3600 * 24 && + -999999999 <= days && days <= 999999999 + ==> Timedelta_get_days(Timedelta_mk(days0, seconds0, msecs0)) == days && + Timedelta_get_seconds(Timedelta_mk(days0, seconds0, msecs0)) == seconds && + Timedelta_get_microseconds(Timedelta_mk(days0, seconds0, msecs0)) == msecs); + + +////// Datetime. +// Datetime is abstractly defined as a pair of (base time, relative timedelta). +// datetime.now() returns (, 0). +// Adding or subtracting datetime.timedelta updates +type Datetime; +type Datetime_base; + +function Datetime_get_base(d : Datetime) : Datetime_base; +function Datetime_get_timedelta(d : Datetime) : int; + +// now() returns an abstract, fresh current datetime. +// This abstract now() does not guarantee monotonic increase of time, and this +// means subtracting an 'old' timestamp from a 'new' timestamp may return +// a negative difference. + +procedure datetime_now() returns (d:Datetime, maybe_except: ExceptOrNone) +spec { + ensures (Datetime_get_timedelta(d) == Timedelta_mk(0,0,0)); +} +{ + havoc d; + assume [assume_datetime_now]: (Datetime_get_timedelta(d) == Timedelta_mk(0,0,0)); +}; + +// Addition/subtraction of Datetime and Timedelta. +function Datetime_add(d:Datetime, timedelta:int):Datetime; +function Datetime_sub(d:Datetime, timedelta:int):Datetime { + Datetime_add(d, -timedelta) +} + +axiom [Datetime_add_ax]: + (forall d:Datetime, timedelta:int :: {} + Datetime_get_base(Datetime_add(d,timedelta)) == Datetime_get_base(d) && + Datetime_get_timedelta(Datetime_add(d,timedelta)) == + Datetime_get_timedelta(d) + timedelta); + +// Comparison of Datetimes is abstractly defined so that the result is +// meaningful only if the two datetimes have same base. +function Datetime_lt(d1:Datetime, d2:Datetime):bool; + +axiom [Datetime_lt_ax]: + (forall d1:Datetime, d2:Datetime :: {} + Datetime_get_base(d1) == Datetime_get_base(d2) + ==> Datetime_lt(d1, d2) == + (Datetime_get_timedelta(d1) < Datetime_get_timedelta(d2))); + + +type Date; +procedure datetime_date(dt: Datetime) returns (d : Datetime, maybe_except: ExceptOrNone) +spec{} +{havoc d;}; + +procedure datetime_strptime(time: string, format: string) returns (d : Datetime, maybe_except: ExceptOrNone) +spec{} +{ + havoc d; +}; + + +///////////////////////////////////////////////////////////////////////////////////// + + // ///////////////////////////////////////////////////////////////////////////////////// // Uninterpreted procedures @@ -349,15 +467,23 @@ procedure import(names : ListStr) returns (); procedure print(msg : string, opt : StrOrNone) returns (); procedure json_dumps(msg : DictStrAny, opt_indent : IntOrNone) returns (s: string, maybe_except: ExceptOrNone) +spec{} +{havoc s;} ; procedure json_loads(msg : string) returns (d: DictStrAny, maybe_except: ExceptOrNone) +spec{} +{havoc d;} ; procedure input(msg : string) returns (result: string, maybe_except: ExceptOrNone) +spec{} +{havoc result;} ; procedure random_choice(l : ListStr) returns (result: string, maybe_except: ExceptOrNone) +spec{} +{havoc result;} ; function str_in_list_str(s : string, l: ListStr) : bool; @@ -375,6 +501,7 @@ function dict_str_any_length(d : DictStrAny) : int; // ///////////////////////////////////////////////////////////////////////////////////// + procedure test_helper_procedure(req_name : string, opt_name : StrOrNone) returns (maybe_except: ExceptOrNone) spec { requires [req_name_is_foo]: req_name == "foo"; diff --git a/Strata/Languages/Python/FunctionSignatures.lean b/Strata/Languages/Python/FunctionSignatures.lean index 6fbaf50511..476c855dd3 100644 --- a/Strata/Languages/Python/FunctionSignatures.lean +++ b/Strata/Languages/Python/FunctionSignatures.lean @@ -18,6 +18,10 @@ def getFuncSigOrder (fname: String) : List String := | "json_loads" => ["msg"] | "input" => ["msg"] | "random_choice" => ["l"] + | "datetime_now" => [] + | "datetime_date" => ["dt"] + | "timedelta" => ["days"] + | "datetime_strptime" => ["time", "format"] | _ => panic! s!"Missing function signature : {fname}" -- We should extract the function signatures from the prelude: @@ -50,6 +54,22 @@ def getFuncSigType (fname: String) (arg: String) : String := match arg with | "l" => "ListStr" | _ => panic! s!"Unrecognized arg : {arg}" + | "datetime_now" => + match arg with + | _ => panic! s!"Unrecognized arg : {arg}" + | "datetime_date" => + match arg with + | "dt" => "Datetime" + | _ => panic! s!"Unrecognized arg : {arg}" + | "timedelta" => + match arg with + | "days" => "int" + | _ => panic! s!"Unrecognized arg : {arg}" + | "datetime_strptime" => + match arg with + | "time" => "string" + | "format" => "string" + | _ => panic! s!"Unrecognized arg : {arg}" | _ => panic! s!"Missing function signature : {fname}" def TypeStrToBoogieExpr (ty: String) : Boogie.Expression.Expr := diff --git a/Strata/Languages/Python/PythonToBoogie.lean b/Strata/Languages/Python/PythonToBoogie.lean index 35e9609272..6aae78f47a 100644 --- a/Strata/Languages/Python/PythonToBoogie.lean +++ b/Strata/Languages/Python/PythonToBoogie.lean @@ -32,6 +32,15 @@ def dummyStr : Boogie.Expression.Expr := .fvar () "DUMMY_STR" none def listStrType : Boogie.Expression.Ty := .forAll [] (.tcons "ListStr" []) def dummyListStr : Boogie.Expression.Expr := .fvar () "DUMMY_LIST_STR" none +def datetimeType : Boogie.Expression.Ty := .forAll [] (.tcons "Datetime" []) +def dummyDatetime : Boogie.Expression.Expr := .fvar () "DUMMY_DATETIME" none + +def dateType : Boogie.Expression.Ty := .forAll [] (.tcons "Date" []) +def dummyDate : Boogie.Expression.Expr := .fvar () "DUMMY_DATE" none + +def timedeltaType : Boogie.Expression.Ty := .forAll [] (.tcons "int" []) +def dummyTimedelta : Boogie.Expression.Expr := .fvar () "DUMMY_Timedelta" none + ------------------------------------------------------------------------------- @@ -78,6 +87,13 @@ def handleAdd (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := | (.tcons "string" []), (.tcons "string" []) => .app () (.app () (.op () "Str.Concat" mty[string → (string → string)]) lhs) rhs | _, _ => panic! s!"Unimplemented add op for {lhs} + {rhs}" +def handleSub (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := + let lty : Lambda.LMonoTy := (.tcons "Datetime" []) + let rty : Lambda.LMonoTy := (.tcons "int" []) + match lty, rty with + | (.tcons "Datetime" []), (.tcons "int" []) => .app () (.app () (.op () "Datetime_sub" none) lhs) rhs + | _, _ => panic! s!"Unimplemented add op for {lhs} + {rhs}" + def handleMult (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := let lty : Lambda.LMonoTy := mty[string] let rty : Lambda.LMonoTy := mty[int] @@ -94,6 +110,11 @@ def handleNot (arg: Boogie.Expression.Expr) : Boogie.Expression.Expr := | (.tcons "ListStr" []) => .eq () arg (.op () "ListStr_nil" none) | _ => panic! s!"Unimplemented not op for {arg}" +def handleLtE (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := + let eq := (.eq () lhs rhs) + let lt := (.app () (.app () (.op () "Datetime_lt" none) lhs) rhs) + (.app () (.app () (.op () "Bool.Or" none) eq) lt) + def handleDict (keys: Array (Python.opt_expr SourceRange)) (values: Array (Python.expr SourceRange)) : Boogie.Expression.Expr := .app () (.op () "DictStrAny_mk" none) (.strConst () "DefaultDict") @@ -119,6 +140,7 @@ structure PyExprTranslated where expr: Boogie.Expression.Expr deriving Inhabited + partial def PyExprToBoogie (e : Python.expr SourceRange) (substitution_records : Option (List SubstitutionRecord) := none) : PyExprTranslated := if h : substitution_records.isSome && (substitution_records.get!.find? (λ r => PyExprIdent r.pyExpr e)).isSome then have hr : (List.find? (fun r => PyExprIdent r.pyExpr e) substitution_records.get!).isSome = true := by rw [Bool.and_eq_true] at h; exact h.2 @@ -139,6 +161,8 @@ partial def PyExprToBoogie (e : Python.expr SourceRange) (substitution_records : match op with | .Add _ => {stmts := lhs.stmts ++ rhs.stmts, expr := handleAdd lhs.expr rhs.expr} + | .Sub _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleSub lhs.expr rhs.expr} | .Mult _ => {stmts := lhs.stmts ++ rhs.stmts, expr := handleMult lhs.expr rhs.expr} | _ => panic! s!"Unhandled BinOp: {repr e}" @@ -152,6 +176,8 @@ partial def PyExprToBoogie (e : Python.expr SourceRange) (substitution_records : {stmts := lhs.stmts ++ rhs.stmts, expr := (.eq () lhs.expr rhs.expr)} | Strata.Python.cmpop.In _ => {stmts := lhs.stmts ++ rhs.stmts, expr := .app () (.app () (.op () "str_in_dict_str_any" none) lhs.expr) rhs.expr} + | Strata.Python.cmpop.LtE _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleLtE lhs.expr rhs.expr} | _ => panic! s!"Unhandled comparison op: {repr op.val}" | _ => panic! s!"Unhandled comparison op: {repr op.val}" | .Dict _ keys values => {stmts := [], expr := handleDict keys.val values.val} @@ -305,6 +331,9 @@ partial def collectVarDecls (stmts: Array (Python.stmt SourceRange)) : List Boog | "Client" => [(.init name clientType dummyClient), (.havoc name)] | "Dict[str Any]" => [(.init name dictStrAnyType dummyDictStrAny), (.havoc name)] | "List[str]" => [(.init name listStrType dummyListStr), (.havoc name)] + | "datetime" => [(.init name datetimeType dummyDatetime), (.havoc name)] + | "date" => [(.init name dateType dummyDate), (.havoc name)] + | "timedelta" => [(.init name timedeltaType dummyTimedelta), (.havoc name)] | _ => panic! s!"Unsupported type annotation: `{ty_name}`" let foo := dedup.map toBoogie foo.flatten @@ -431,6 +460,9 @@ partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonF let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) (PyExprToBoogie itr).expr) (.intConst () 0)) [.ite guard (ArrPyStmtToBoogie func_infos body.val) []] -- TODO: missing havoc + | .Assert _ a _ => + let res := PyExprToBoogie a + [(.assert "py_assertion" res.expr)] | _ => panic! s!"Unsupported {repr s}" if callCanThrow func_infos s then @@ -465,6 +497,7 @@ def translateFunctions (a : Array (Python.stmt SourceRange)) (func_infos : List def pyTyStrToLMonoTy (ty_str: String) : Lambda.LMonoTy := match ty_str with | "str" => mty[string] + | "datetime" => (.tcons "Datetime" []) | _ => panic! s!"Unsupported type: {ty_str}" def pythonFuncToBoogie (name : String) (args: List (String × String)) (body: Array (Python.stmt SourceRange)) (ret : Option (Python.expr SourceRange)) (spec : Boogie.Procedure.Spec) (func_infos : List PythonFunctionDecl) : Boogie.Procedure := diff --git a/StrataMain.lean b/StrataMain.lean index 860fdffd7e..3a8bda76d1 100644 --- a/StrataMain.lean +++ b/StrataMain.lean @@ -193,10 +193,10 @@ def pyAnalyzeCommand : Command where let newPgm : Boogie.Program := { decls := preludePgm.decls ++ bpgm.decls } if verbose then IO.print newPgm - -- let newPgm := runInlineCall newPgm - -- if verbose then - -- IO.println "Inlined: " - -- IO.print newPgm + let newPgm := runInlineCall newPgm + if verbose then + IO.println "Inlined: " + IO.print newPgm let vcResults ← EIO.toIO (fun f => IO.Error.userError (toString f)) (Boogie.verify "z3" newPgm { Options.default with stopOnFirstError := false, verbose, diff --git a/StrataTest/Languages/Python/README.md b/StrataTest/Languages/Python/README.md index b54957b557..6ceb8853f8 100644 --- a/StrataTest/Languages/Python/README.md +++ b/StrataTest/Languages/Python/README.md @@ -9,10 +9,10 @@ python -m strata.gen dialect test_results/dialects ## Generate Ion files per source program: ``` cd Tools/Python -python -m strata.gen parse ../../StrataTest/Languages/Python/test.py ../../StrataTest/Languages/Python/test.python.st.ion +python -m strata.gen py_to_strata ../../StrataTest/Languages/Python/test.py ../../StrataTest/Languages/Python/test.python.st.ion ``` ## Run analysis: ``` lake exe strata pyAnalyze --include Tools/Python/test_results/dialects StrataTest/Languages/Python/test.python.st.ion -``` \ No newline at end of file +``` diff --git a/StrataTest/Languages/Python/expected/test_datetime.expected b/StrataTest/Languages/Python/expected/test_datetime.expected new file mode 100644 index 0000000000..1e325ab09d --- /dev/null +++ b/StrataTest/Languages/Python/expected/test_datetime.expected @@ -0,0 +1,21 @@ + +ensure_timedelta_sign_matches: verified + +datetime_now_ensures_0: verified + +assert_name_is_foo: verified + +assert_opt_name_none_or_str: verified + +assert_opt_name_none_or_bar: verified + +ensures_maybe_except_none: verified + +py_assertion: unknown + +py_assertion: unknown + +my_f_py_assertion_35: verified + +my_f_str_py_assertion_57: unknown + diff --git a/StrataTest/Languages/Python/tests/test_datetime.py b/StrataTest/Languages/Python/tests/test_datetime.py new file mode 100644 index 0000000000..78ba6c7627 --- /dev/null +++ b/StrataTest/Languages/Python/tests/test_datetime.py @@ -0,0 +1,19 @@ +from datetime import datetime, date, timedelta + +def my_f(start: datetime, end: datetime): + assert start <= end + +def my_f_str(start: str, end : str): + format_string : str = "%Y-%m-%d" + start_dt : datetime = datetime.strptime(start, format_string) + end_dt : datetime = datetime.strptime(end, format_string) + assert start_dt <= end_dt + +now : datetime = datetime.now() +end : datetime = datetime.date(now) +delta : timedelta = timedelta(days=7) +start : datetime = end - delta + +my_f(start, end) + +my_f_str(str(start), str(end)) \ No newline at end of file From 94e1af3f3458e97ceed414850139b5d5a66638f0 Mon Sep 17 00:00:00 2001 From: Josh Cohen <36058610+joscoh@users.noreply.github.com> Date: Tue, 9 Dec 2025 17:33:02 -0500 Subject: [PATCH 21/68] Generalize reflexive transitive closure (#267) Addresses TODO in in-progress documentation (PR #186) By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. Co-authored-by: Josh Cohen --- .../DL/Imperative/StmtSemanticsSmallStep.lean | 15 ++++------ Strata/DL/Lambda/Semantics.lean | 9 +++--- Strata/DL/Util/Relations.lean | 28 +++++++++++++++++++ StrataTest/DL/Lambda/LExprEvalTests.lean | 6 ++-- 4 files changed, 40 insertions(+), 18 deletions(-) create mode 100644 Strata/DL/Util/Relations.lean diff --git a/Strata/DL/Imperative/StmtSemanticsSmallStep.lean b/Strata/DL/Imperative/StmtSemanticsSmallStep.lean index 3c3d60cf70..7fe49797dd 100644 --- a/Strata/DL/Imperative/StmtSemanticsSmallStep.lean +++ b/Strata/DL/Imperative/StmtSemanticsSmallStep.lean @@ -5,6 +5,7 @@ -/ import Strata.DL.Imperative.CmdSemantics +import Strata.DL.Util.Relations --------------------------------------------------------------------- @@ -111,20 +112,14 @@ inductive StepStmt /-- Multi-step execution: reflexive transitive closure of single steps. -/ -inductive StepStmtStar +def StepStmtStar {CmdT : Type} (P : PureExpr) (EvalCmd : EvalCmdParam P CmdT) [HasVarsImp P (List (Stmt P CmdT))] [HasVarsImp P CmdT] [HasFvar P] [HasVal P] [HasBool P] [HasNot P] : - SemanticEval P → SemanticStore P → Config P CmdT → Config P CmdT → Prop where - | refl : - StepStmtStar P EvalCmd δ σ c c - | step : - StepStmt P EvalCmd δ σ c₁ c₂ → - StepStmtStar P EvalCmd δ σ c₂ c₃ → - StepStmtStar P EvalCmd δ σ c₁ c₃ + SemanticEval P → SemanticStore P → Config P CmdT → Config P CmdT → Prop := fun δ σ => ReflTrans (StepStmt P EvalCmd δ σ) /-- A statement evaluates successfully if it can step to a terminal configuration. @@ -174,9 +169,9 @@ theorem evalStmtsSmallNil (EvalCmd : EvalCmdParam P CmdT) : EvalStmtsSmall P EvalCmd δ σ [] σ := by unfold EvalStmtsSmall - apply StepStmtStar.step + apply ReflTrans.step · exact StepStmt.step_stmts_nil - · exact StepStmtStar.refl + · apply ReflTrans.refl /-- Configuration is terminal if no further steps are possible. diff --git a/Strata/DL/Lambda/Semantics.lean b/Strata/DL/Lambda/Semantics.lean index 40d18eb7f1..a70ba14e06 100644 --- a/Strata/DL/Lambda/Semantics.lean +++ b/Strata/DL/Lambda/Semantics.lean @@ -8,6 +8,7 @@ import Strata.DL.Lambda.LExpr import Strata.DL.Lambda.LExprEval import Strata.DL.Lambda.LExprWF import Strata.DL.Lambda.LState +import Strata.DL.Util.Relations --------------------------------------------------------------------- @@ -136,10 +137,8 @@ theorem step_const_stuck: /-- Multi-step execution: reflexive transitive closure of single steps. -/ -inductive StepStar (F:@Factory Tbase) (rf:Env Tbase) - : LExpr Tbase.mono → LExpr Tbase.mono → Prop where -| refl : StepStar F rf e e -| step : ∀ e e' e'', Step F rf e e' → StepStar F rf e' e'' - → StepStar F rf e e'' +def StepStar (F:@Factory Tbase) (rf:Env Tbase) + : LExpr Tbase.mono → LExpr Tbase.mono → Prop := + ReflTrans (Step F rf) end Lambda diff --git a/Strata/DL/Util/Relations.lean b/Strata/DL/Util/Relations.lean new file mode 100644 index 0000000000..1ea9af8122 --- /dev/null +++ b/Strata/DL/Util/Relations.lean @@ -0,0 +1,28 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ +section Relation + +def Relation (A: Type) := A → A → Prop +def Reflexive (r: Relation A) : Prop := ∀ x, r x x +def Transitive (r: Relation A) : Prop := ∀ x y z, r x y → r y z → r x z + +inductive ReflTrans {A: Type} (r: Relation A) : Relation A where + | refl : ∀ x, ReflTrans r x x + | step: ∀ x y z, r x y → ReflTrans r y z → ReflTrans r x z + +theorem ReflTrans_Reflexive {A: Type} (r: Relation A): + Reflexive (ReflTrans r) := by apply ReflTrans.refl + +theorem ReflTrans_Transitive {A: Type} (r: Relation A): + Transitive (ReflTrans r) := by + unfold Transitive; intros x y z rxy + induction rxy generalizing z + case refl => simp + case step x1 y1 z1 rxy1 ryz1 IH => + intros rzz1; + apply (ReflTrans.step _ y1 _ rxy1 (IH _ rzz1)) + +end Relation diff --git a/StrataTest/DL/Lambda/LExprEvalTests.lean b/StrataTest/DL/Lambda/LExprEvalTests.lean index ddfeccee81..016ee08ad6 100644 --- a/StrataTest/DL/Lambda/LExprEvalTests.lean +++ b/StrataTest/DL/Lambda/LExprEvalTests.lean @@ -33,11 +33,11 @@ macro "discharge_isCanonicalValue": tactic => `(tactic| ) -- Take a small step. macro "take_step": tactic => `(tactic | - (conv => lhs; reduce) <;> apply StepStar.step + (conv => lhs; reduce) <;> apply ReflTrans.step ) -- Finish taking small steps! macro "take_refl": tactic => `(tactic | - (conv => lhs; reduce) <;> apply StepStar.refl + (conv => lhs; reduce) <;> apply ReflTrans.refl ) -- Do beta reduction. macro "reduce_beta": tactic => `(tactic | @@ -112,7 +112,7 @@ example: steps_well test2 := by · apply Step.eq_reduce <;> try discharge_isCanonicalValue · inhabited_metadata take_step; apply Step.ite_reduce_else - apply StepStar.refl + apply ReflTrans.refl def test3 := TestCase.mk From 25df923a53f7ebaaa439ae3816d81771631770ea Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 11:24:17 +0100 Subject: [PATCH 22/68] Revert AdvancedMaps changes --- .../Languages/Boogie/Examples/AdvancedMaps.lean | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/Strata/Languages/Boogie/Examples/AdvancedMaps.lean b/Strata/Languages/Boogie/Examples/AdvancedMaps.lean index b38c4e6c1a..87065230b7 100644 --- a/Strata/Languages/Boogie/Examples/AdvancedMaps.lean +++ b/Strata/Languages/Boogie/Examples/AdvancedMaps.lean @@ -48,12 +48,12 @@ spec { #end -/- info: true -/ --- #guard_msgs in +/-- info: true -/ +#guard_msgs in -- No errors in translation. #eval TransM.run Inhabited.default (translateProgram mapPgm) |>.snd |>.isEmpty -/- +/-- info: type MapII := (Map int int) type MapIMapII := (Map int MapII) var (a : MapII) := init_a_0 @@ -78,13 +78,10 @@ assert [mix] ((((~select : (arrow (Map int int) (arrow int int))) (a : MapII)) # Errors: #[] -/ --- #guard_msgs in +#guard_msgs in #eval TransM.run Inhabited.default (translateProgram mapPgm) --- #guard_msgs in --- #eval TransM.run (translateProgram mapPgm) - -/- +/-- info: [Strata.Boogie] Type checking succeeded. @@ -187,7 +184,7 @@ Result: verified Obligation: mix Result: verified -/ --- #guard_msgs in --- #eval verify "cvc5" mapPgm +#guard_msgs in +#eval verify "cvc5" mapPgm --------------------------------------------------------------------- From 3c933e54b11ddd39b05319df0281a64c1ebb4f21 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 11:24:24 +0100 Subject: [PATCH 23/68] Add missing license headers --- Strata/Languages/Laurel/LaurelToBoogieTranslator.lean | 6 ++++++ StrataTest/Languages/Laurel/Grammar/TestGrammar.lean | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean b/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean index c31e604cbe..8ec310387d 100644 --- a/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean +++ b/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean @@ -1,3 +1,9 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + import Strata.Languages.Boogie.Program import Strata.Languages.Boogie.Verifier import Strata.Languages.Boogie.Statement diff --git a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean index 5dd4b46d37..4ec9473eb5 100644 --- a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean +++ b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean @@ -1,3 +1,9 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + -- Test the minimal Laurel grammar import Strata.Languages.Laurel.Grammar.LaurelGrammar import StrataTest.DDM.TestGrammar From f1828911a3dc13c69d6c168b24d7866bb75ecc9d Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 11:30:48 +0100 Subject: [PATCH 24/68] Revert RealBitVector --- .../Boogie/Examples/RealBitVector.lean | 30 +++++++++---------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/Strata/Languages/Boogie/Examples/RealBitVector.lean b/Strata/Languages/Boogie/Examples/RealBitVector.lean index d627f28671..646a1b406c 100644 --- a/Strata/Languages/Boogie/Examples/RealBitVector.lean +++ b/Strata/Languages/Boogie/Examples/RealBitVector.lean @@ -26,12 +26,12 @@ procedure P() returns () }; #end -/- info: true -/ --- #guard_msgs in +/-- info: true -/ +#guard_msgs in -- No errors in translation. #eval TransM.run Inhabited.default (translateProgram realPgm) |>.snd |>.isEmpty -/- +/-- info: func x : () → real; func y : () → real; axiom real_x_ge_1: (((~Real.Ge : (arrow real (arrow real bool))) (~x : real)) #1); @@ -45,7 +45,7 @@ assert [real_add_ge_bad] (((~Real.Ge : (arrow real (arrow real bool))) (((~Real. Errors: #[] -/ --- #guard_msgs in +#guard_msgs in #eval TransM.run Inhabited.default (translateProgram realPgm) /-- @@ -99,8 +99,8 @@ Obligation: real_add_ge_bad Result: failed CEx: -/ --- #guard_msgs in --- #eval verify "cvc5" realPgm +#guard_msgs in +#eval verify "cvc5" realPgm --------------------------------------------------------------------- @@ -127,12 +127,12 @@ spec { }; #end -/- info: true -/ --- #guard_msgs in +/-- info: true -/ +#guard_msgs in -- No errors in translation. #eval TransM.run Inhabited.default (translateProgram bvPgm) |>.snd |>.isEmpty -/- +/-- info: func x : () → bv8; func y : () → bv8; axiom bv_x_ge_1: (((~Bv8.ULe : (arrow bv8 (arrow bv8 bool))) #1) (~x : bv8)); @@ -151,7 +151,7 @@ body: r := (((~Bv1.Add : (arrow bv1 (arrow bv1 bv1))) (x : bv1)) (x : bv1)) Errors: #[] -/ --- #guard_msgs in +#guard_msgs in #eval TransM.run Inhabited.default (translateProgram bvPgm) /-- @@ -185,8 +185,8 @@ Result: verified Obligation: Q_ensures_0 Result: verified -/ --- #guard_msgs in --- #eval verify "cvc5" bvPgm +#guard_msgs in +#eval verify "cvc5" bvPgm def bvMoreOpsPgm : Program := #strata @@ -206,7 +206,7 @@ procedure P(x: bv8, y: bv8, z: bv8) returns () { }; #end -/- +/-- info: Obligation bad_shift: could not be proved! @@ -237,5 +237,5 @@ Obligation: bad_shift Result: failed CEx: ($__x0, #b10011001) ($__y1, #b00000010) -/ --- #guard_msgs in --- #eval verify "cvc5" bvMoreOpsPgm Inhabited.default Options.quiet +#guard_msgs in +#eval verify "cvc5" bvMoreOpsPgm Inhabited.default Options.quiet From 5bc8abd12e9a136c2482a402a0f0f9935319ec16 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 11:56:03 +0100 Subject: [PATCH 25/68] Tweaks --- .../ConcreteToAbstractTreeTranslator.lean | 27 ++++++------------- Strata/Languages/Laurel/Laurel.lean | 12 +++++---- 2 files changed, 15 insertions(+), 24 deletions(-) diff --git a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean index 524b274e7d..51f74b5761 100644 --- a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean +++ b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean @@ -10,10 +10,8 @@ import Strata.Languages.Laurel.Laurel import Strata.DL.Imperative.MetaData import Strata.Languages.Boogie.Expressions ---------------------------------------------------------------------- namespace Laurel -/- Translating concrete Laurel syntax into abstract Laurel syntax -/ open Laurel open Std (ToFormat Format format) @@ -21,7 +19,6 @@ open Strata (QualifiedIdent Arg SourceRange) open Lean.Parser (InputContext) open Imperative (MetaData Uri FileRange) ---------------------------------------------------------------------- /- Translation Monad -/ @@ -39,8 +36,6 @@ def TransM.error [Inhabited α] (msg : String) : TransM α := do modify fun s => { s with errors := s.errors.push msg } return panic msg ---------------------------------------------------------------------- - /- Metadata -/ def SourceRange.toMetaData (ictx : InputContext) (sr : SourceRange) : Imperative.MetaData Boogie.Expression := @@ -54,8 +49,6 @@ def SourceRange.toMetaData (ictx : InputContext) (sr : SourceRange) : Imperative def getArgMetaData (arg : Arg) : TransM (Imperative.MetaData Boogie.Expression) := return arg.ann.toMetaData (← get).inputCtx ---------------------------------------------------------------------- - def checkOp (op : Strata.Operation) (name : QualifiedIdent) (argc : Nat) : TransM Unit := do if op.name != name then @@ -92,23 +85,18 @@ def translateBool (arg : Arg) : TransM Bool := do TransM.error s!"translateBool expects boolTrue or boolFalse, got {repr op.name}" | x => TransM.error s!"translateBool expects expression or operation, got {repr x}" ---------------------------------------------------------------------- - instance : Inhabited Procedure where default := { name := "" inputs := [] output := .TVoid precondition := .LiteralBool true - decreases := .LiteralBool true - deterministic := true - reads := none - modifies := .LiteralBool true + decreases := none + determinism := Determinism.deterministic none + modifies := none body := .Transparent (.LiteralBool true) } ---------------------------------------------------------------------- - mutual partial def translateStmtExpr (arg : Arg) : TransM StmtExpr := do @@ -161,17 +149,18 @@ def parseProcedure (arg : Arg) : TransM Procedure := do inputs := [] output := .TVoid precondition := .LiteralBool true - decreases := .LiteralBool true - deterministic := true - reads := none - modifies := .LiteralBool true + decreases := none + determinism := Determinism.deterministic none + modifies := none body := .Transparent body } +/- Translate concrete Laurel syntax into abstract Laurel syntax -/ def parseProgram (prog : Strata.Program) : TransM Laurel.Program := do -- Unwrap the program operation if present -- The parsed program may have a single `program` operation wrapping the procedures let commands : Array Strata.Operation := + -- support the program optionally being wrapped in a top level command if prog.commands.size == 1 && prog.commands[0]!.name == q`Laurel.program then -- Extract procedures from the program operation's first argument (Seq Procedure) match prog.commands[0]!.args[0]! with diff --git a/Strata/Languages/Laurel/Laurel.lean b/Strata/Languages/Laurel/Laurel.lean index 554cd532b8..401b8a6c96 100644 --- a/Strata/Languages/Laurel/Laurel.lean +++ b/Strata/Languages/Laurel/Laurel.lean @@ -52,13 +52,15 @@ structure Procedure: Type where inputs : List Parameter output : HighType precondition : StmtExpr - decreases : StmtExpr - deterministic: Bool - /- Reads clause defaults to empty for deterministic procedures, and everything for non-det ones -/ - reads : Option StmtExpr - modifies : StmtExpr + decreases : Option StmtExpr -- optionally prove termination + determinism: Determinism + modifies : Option StmtExpr body : Body +inductive Determinism where + | deterministic (reads: Option StmtExpr) + | nondeterministic + structure Parameter where name : Identifier type : HighType From fe2a831a1b4f3f701b8099c1bcaa2db281a57d44 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 13:07:25 +0100 Subject: [PATCH 26/68] Save state --- Strata/DDM/Elab.lean | 21 ++++++++++++++++ Strata/Languages/Laurel/Laurel.lean | 2 +- StrataTest/DDM/TestGrammar.lean | 25 +++---------------- .../Languages/Laurel/Grammar/TestGrammar.lean | 13 +++------- 4 files changed, 30 insertions(+), 31 deletions(-) diff --git a/Strata/DDM/Elab.lean b/Strata/DDM/Elab.lean index bb517179b4..c162eb740d 100644 --- a/Strata/DDM/Elab.lean +++ b/Strata/DDM/Elab.lean @@ -9,6 +9,7 @@ import Strata.DDM.BuiltinDialects.StrataDDL import Strata.DDM.BuiltinDialects.StrataHeader import Strata.DDM.Util.ByteArray import Strata.DDM.Ion +import Strata.Util.IO open Lean ( Message @@ -407,4 +408,24 @@ def elabDialect | .dialect loc dialect => elabDialectRest fm dialects #[] inputContext loc dialect startPos stopPos +def parseDialectIntoConcreteAst (filePath : String) (dialect: Dialect) : IO Strata.Program := do + let dialects := Elab.LoadedDialects.ofDialects! #[initDialect, dialect] + + let bytes ← Strata.Util.readBinInputSource filePath + let fileContent ← match String.fromUTF8? bytes with + | some s => pure s + | none => throw (IO.userError s!"File {filePath} contains non UTF-8 data") + + -- Add program header to the content + let contents := s!"program {dialect.name};\n\n" ++ fileContent + + let leanEnv ← Lean.mkEmptyEnvironment 0 + let inputContext := Strata.Parser.stringInputContext filePath contents + let strataProgram ← match Strata.Elab.elabProgram dialects leanEnv inputContext with + | .ok program => pure program + | .error errors => + let errMsg ← errors.foldlM (init := "Parse errors:\n") fun msg e => + return s!"{msg} {e.pos.line}:{e.pos.column}: {← e.data.toString}\n" + throw (IO.userError errMsg) + end Strata.Elab diff --git a/Strata/Languages/Laurel/Laurel.lean b/Strata/Languages/Laurel/Laurel.lean index 401b8a6c96..6314661e7a 100644 --- a/Strata/Languages/Laurel/Laurel.lean +++ b/Strata/Languages/Laurel/Laurel.lean @@ -24,7 +24,7 @@ Design choices: - Pure contracts: contracts may only contain pure code. Pure code does not modify the heap, neither by modifying existing objects are creating new ones. - Procedures: instead of functions and methods we have a single more general concept called a 'procedure'. - Determinism: procedures can be marked as deterministic or not. For deterministic procedures with a non-empty reads clause, we can assumption the result is unchanged if the read references are the same. -- Opacity: procedures can have a body that's transparant or opaque. Only an opaque body may declare a postcondition. A transparant procedure must be deterministic. +- Opacity: procedures can have a body that's transparant or opaque. Only an opaque body may declare a postcondition. - StmtExpr: Statements and expressions are part of the same type. This reduces duplication since the same concepts are needed in both, such as conditions and variable declarations. - Loops: The only loop is a while, but this can be used to compile do-while and for loops to as well. - Jumps: Instead of break and continue statements, there is a labelled block that can be exited from using an exit statement inside of it. diff --git a/StrataTest/DDM/TestGrammar.lean b/StrataTest/DDM/TestGrammar.lean index ea1921fbd2..2e52a4a520 100644 --- a/StrataTest/DDM/TestGrammar.lean +++ b/StrataTest/DDM/TestGrammar.lean @@ -60,23 +60,11 @@ structure GrammarTestResult where Returns: - GrammarTestResult with parse/format results -/ -def testGrammarFile (loader : Elab.LoadedDialects) (dialectName : String) (filePath : String) : IO GrammarTestResult := do - let fileContent ← IO.FS.readFile filePath - - -- Add program header to the content - let content := s!"program {dialectName};\n\n" ++ fileContent - - -- Create InputContext from the file content - let inputCtx := Strata.Parser.stringInputContext filePath content - - -- Create empty Lean environment - let leanEnv ← Lean.mkEmptyEnvironment 0 - - -- Parse using the dialect - let ddmResult := Elab.elabProgram loader leanEnv inputCtx +def testGrammarFile (dialect: Dialect) (filePath : String) : IO GrammarTestResult := do + let ddmResult := Strata.Elab.parseDialectIntoConcreteAst filePath dialect match ddmResult with - | Except.error messages => + | .error messages _ => let errorMsgs ← messages.toList.mapM (fun msg => msg.toString) return { parseSuccess := false @@ -85,15 +73,11 @@ def testGrammarFile (loader : Elab.LoadedDialects) (dialectName : String) (fileP normalizedMatch := false errorMessages := errorMsgs } - | Except.ok ddmProgram => - -- Format the DDM program back to a string + | .ok ddmProgram => let formatted := ddmProgram.format.render - - -- Strip comments and normalize whitespace in both strings let normalizedInput := normalizeWhitespace (stripComments content) let normalizedOutput := normalizeWhitespace formatted - -- Compare let isMatch := normalizedInput == normalizedOutput return { @@ -104,7 +88,6 @@ def testGrammarFile (loader : Elab.LoadedDialects) (dialectName : String) (fileP errorMessages := [] } -/-- Print detailed test results -/ def printTestResult (result : GrammarTestResult) (showFormatted : Bool := true) : IO Unit := do if !result.parseSuccess then diff --git a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean index 4ec9473eb5..f7f038f15c 100644 --- a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean +++ b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean @@ -14,19 +14,14 @@ open StrataTest.DDM namespace Laurel --- Test parsing the AssertFalse example -def testAssertFalse : IO Bool := do - -- Create LoadedDialects with the Init and Laurel dialects +def testAssertFalse : IO Unit := do let laurelDialect: Strata.Dialect := Laurel let loader := Elab.LoadedDialects.ofDialects! #[initDialect, laurelDialect] - -- Test the file let filePath := "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" let result ← testGrammarFile loader "Laurel" filePath - pure result.normalizedMatch - -#eval do - let success ← testAssertFalse - if !success then + if !result.normalizedMatch then throw (IO.userError "Test failed: formatted output does not match input") + +#eval testAssertFalse From 2cd178c95a29387db4eb1c3f2bd763bc4d06b58f Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 13:22:40 +0100 Subject: [PATCH 27/68] Refactoring --- Strata/DDM/Elab.lean | 4 +-- Strata/DDM/Parser.lean | 1 + StrataTest/DDM/TestGrammar.lean | 27 +++++++++---------- StrataTest/Languages/Laurel/TestExamples.lean | 24 +---------------- 4 files changed, 17 insertions(+), 39 deletions(-) diff --git a/Strata/DDM/Elab.lean b/Strata/DDM/Elab.lean index c162eb740d..681cdd12f8 100644 --- a/Strata/DDM/Elab.lean +++ b/Strata/DDM/Elab.lean @@ -408,7 +408,7 @@ def elabDialect | .dialect loc dialect => elabDialectRest fm dialects #[] inputContext loc dialect startPos stopPos -def parseDialectIntoConcreteAst (filePath : String) (dialect: Dialect) : IO Strata.Program := do +def parseDialectIntoConcreteAst (filePath : String) (dialect: Dialect) : IO (InputContext × Strata.Program) := do let dialects := Elab.LoadedDialects.ofDialects! #[initDialect, dialect] let bytes ← Strata.Util.readBinInputSource filePath @@ -422,7 +422,7 @@ def parseDialectIntoConcreteAst (filePath : String) (dialect: Dialect) : IO Stra let leanEnv ← Lean.mkEmptyEnvironment 0 let inputContext := Strata.Parser.stringInputContext filePath contents let strataProgram ← match Strata.Elab.elabProgram dialects leanEnv inputContext with - | .ok program => pure program + | .ok program => pure (inputContext, program) | .error errors => let errMsg ← errors.foldlM (init := "Parse errors:\n") fun msg e => return s!"{msg} {e.pos.line}:{e.pos.column}: {← e.data.toString}\n" diff --git a/Strata/DDM/Parser.lean b/Strata/DDM/Parser.lean index dff434d6ce..9885d9d16a 100644 --- a/Strata/DDM/Parser.lean +++ b/Strata/DDM/Parser.lean @@ -921,4 +921,5 @@ def runCatParser (tokenTable : TokenTable) let p := dynamicParser cat p.fn.run inputContext pmc tokenTable leanParserState + end Strata.Parser diff --git a/StrataTest/DDM/TestGrammar.lean b/StrataTest/DDM/TestGrammar.lean index 2e52a4a520..e4b9b5cce9 100644 --- a/StrataTest/DDM/TestGrammar.lean +++ b/StrataTest/DDM/TestGrammar.lean @@ -54,26 +54,17 @@ structure GrammarTestResult where /-- Test parsing and formatting a file with a given dialect. Takes: - - loader: The dialect loader containing all required dialects - - dialectName: Name of the dialect (for the "program" header) + - dialect: The dialect to use for parsing - filePath: Path to the source file to test Returns: - GrammarTestResult with parse/format results -/ def testGrammarFile (dialect: Dialect) (filePath : String) : IO GrammarTestResult := do - let ddmResult := Strata.Elab.parseDialectIntoConcreteAst filePath dialect + -- Read file content + let content ← IO.FS.readFile filePath - match ddmResult with - | .error messages _ => - let errorMsgs ← messages.toList.mapM (fun msg => msg.toString) - return { - parseSuccess := false - normalizedInput := "" - normalizedOutput := "" - normalizedMatch := false - errorMessages := errorMsgs - } - | .ok ddmProgram => + try + let (_, ddmProgram) ← Strata.Elab.parseDialectIntoConcreteAst filePath dialect let formatted := ddmProgram.format.render let normalizedInput := normalizeWhitespace (stripComments content) let normalizedOutput := normalizeWhitespace formatted @@ -87,6 +78,14 @@ def testGrammarFile (dialect: Dialect) (filePath : String) : IO GrammarTestResul normalizedMatch := isMatch errorMessages := [] } + catch e => + return { + parseSuccess := false + normalizedInput := "" + normalizedOutput := "" + normalizedMatch := false + errorMessages := [toString e] + } def printTestResult (result : GrammarTestResult) (showFormatted : Bool := true) : IO Unit := do diff --git a/StrataTest/Languages/Laurel/TestExamples.lean b/StrataTest/Languages/Laurel/TestExamples.lean index 70f48e9748..0debd4dde9 100644 --- a/StrataTest/Languages/Laurel/TestExamples.lean +++ b/StrataTest/Languages/Laurel/TestExamples.lean @@ -40,31 +40,9 @@ def vcResultToDiagnostic (headerOffset : Nat) (vcr : Boogie.VCResult) : Option D | _ => none def processLaurelFile (filePath : String) : IO (List Diagnostic) := do - -- Read file content - let bytes ← Strata.Util.readBinInputSource filePath - let fileContent ← match String.fromUTF8? bytes with - | some s => pure s - | none => throw (IO.userError s!"File {filePath} contains non UTF-8 data") - -- Create LoadedDialects with the Init and Laurel dialects let laurelDialect : Strata.Dialect := Laurel - let dialects := Elab.LoadedDialects.ofDialects! #[initDialect, laurelDialect] - let dialect : Strata.DialectName := "Laurel" - - -- Add program header to the content - let contents := s!"program {dialect};\n\n" ++ fileContent - - -- Parse the file content as a Laurel program - let leanEnv ← Lean.mkEmptyEnvironment 0 - let inputContext := Strata.Parser.stringInputContext filePath contents - - -- Parse using elabProgram which handles the program header - let strataProgram ← match Strata.Elab.elabProgram dialects leanEnv inputContext with - | .ok program => pure program - | .error errors => - let errMsg ← errors.foldlM (init := "Parse errors:\n") fun msg e => - return s!"{msg} {e.pos.line}:{e.pos.column}: {← e.data.toString}\n" - throw (IO.userError errMsg) + let (inputContext, strataProgram) ← Strata.Elab.parseDialectIntoConcreteAst filePath laurelDialect -- Convert to Laurel.Program using parseProgram (handles unwrapping the program operation) let (laurelProgram, transErrors) := Laurel.TransM.run inputContext (Laurel.parseProgram strataProgram) From 12946cf7e57e7f1ed1fceba743b84184b9043e37 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 13:45:37 +0100 Subject: [PATCH 28/68] Refactoring --- Strata/DDM/Elab.lean | 5 +++- Strata/Languages/Boogie/Verifier.lean | 29 ++++++++++++++++++ .../Laurel/LaurelToBoogieTranslator.lean | 7 ++++- StrataTest/Languages/Laurel/TestExamples.lean | 30 ++----------------- StrataTest/Util/TestDiagnostics.lean | 24 +++++---------- 5 files changed, 48 insertions(+), 47 deletions(-) diff --git a/Strata/DDM/Elab.lean b/Strata/DDM/Elab.lean index 681cdd12f8..b4256493e0 100644 --- a/Strata/DDM/Elab.lean +++ b/Strata/DDM/Elab.lean @@ -421,8 +421,11 @@ def parseDialectIntoConcreteAst (filePath : String) (dialect: Dialect) : IO (Inp let leanEnv ← Lean.mkEmptyEnvironment 0 let inputContext := Strata.Parser.stringInputContext filePath contents + let returnedInputContext := {inputContext with + fileMap := { source := fileContent, positions := inputContext.fileMap.positions.drop 2 } + } let strataProgram ← match Strata.Elab.elabProgram dialects leanEnv inputContext with - | .ok program => pure (inputContext, program) + | .ok program => pure (returnedInputContext, program) | .error errors => let errMsg ← errors.foldlM (init := "Parse errors:\n") fun msg e => return s!"{msg} {e.pos.line}:{e.pos.column}: {← e.data.toString}\n" diff --git a/Strata/Languages/Boogie/Verifier.lean b/Strata/Languages/Boogie/Verifier.lean index 2723f1e67d..a66595601e 100644 --- a/Strata/Languages/Boogie/Verifier.lean +++ b/Strata/Languages/Boogie/Verifier.lean @@ -353,6 +353,35 @@ def verify else panic! s!"DDM Transform Error: {repr errors}" +/-- A diagnostic produced by analyzing a file -/ +structure Diagnostic where + start : Lean.Position + ending : Lean.Position + message : String + deriving Repr, BEq + +def toDiagnostic (vcr : Boogie.VCResult) : Option Diagnostic := do + -- Only create a diagnostic if the result is not .unsat (i.e., verification failed) + match vcr.result with + | .unsat => none -- Verification succeeded, no diagnostic + | result => + -- Extract file range from metadata + let fileRangeElem ← vcr.obligation.metadata.findElem Imperative.MetaData.fileRange + match fileRangeElem.value with + | .fileRange range => + let message := match result with + | .sat _ => "assertion does not hold" + | .unknown => "assertion verification result is unknown" + | .err msg => s!"verification error: {msg}" + | _ => "verification failed" + some { + -- Subtract headerOffset to account for program header we added + start := { line := range.start.line, column := range.start.column } + ending := { line := range.ending.line, column := range.ending.column } + message := message + } + | _ => none + end Strata --------------------------------------------------------------------- diff --git a/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean b/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean index 8ec310387d..06921f0b66 100644 --- a/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean +++ b/Strata/Languages/Laurel/LaurelToBoogieTranslator.lean @@ -14,6 +14,7 @@ import Strata.Languages.Laurel.Laurel namespace Laurel open Boogie (VCResult VCResults) +open Strata /- Translate Laurel StmtExpr to Boogie Expression @@ -75,10 +76,14 @@ def translate (program : Program) : Boogie.Program := /- Verify a Laurel program using an SMT solver -/ -def verify (smtsolver : String) (program : Program) +def verifyToVcResults (smtsolver : String) (program : Program) (options : Options := Options.default) : IO VCResults := do let boogieProgram := translate program EIO.toIO (fun f => IO.Error.userError (toString f)) (Boogie.verify smtsolver boogieProgram options) +def verifyToDiagnostics (smtsolver : String) (program : Program): IO (Array Diagnostic) := do + let results <- verifyToVcResults smtsolver program + return results.filterMap toDiagnostic + end Laurel diff --git a/StrataTest/Languages/Laurel/TestExamples.lean b/StrataTest/Languages/Laurel/TestExamples.lean index 0debd4dde9..56e9a883f9 100644 --- a/StrataTest/Languages/Laurel/TestExamples.lean +++ b/StrataTest/Languages/Laurel/TestExamples.lean @@ -17,29 +17,8 @@ open Strata namespace Laurel -def vcResultToDiagnostic (headerOffset : Nat) (vcr : Boogie.VCResult) : Option Diagnostic := do - -- Only create a diagnostic if the result is not .unsat (i.e., verification failed) - match vcr.result with - | .unsat => none -- Verification succeeded, no diagnostic - | result => - -- Extract file range from metadata - let fileRangeElem ← vcr.obligation.metadata.findElem Imperative.MetaData.fileRange - match fileRangeElem.value with - | .fileRange range => - let message := match result with - | .sat _ => "assertion does not hold" - | .unknown => "assertion verification result is unknown" - | .err msg => s!"verification error: {msg}" - | _ => "verification failed" - some { - -- Subtract headerOffset to account for program header we added - start := { line := range.start.line - headerOffset, column := range.start.column } - ending := { line := range.ending.line - headerOffset, column := range.ending.column } - message := message - } - | _ => none -def processLaurelFile (filePath : String) : IO (List Diagnostic) := do +def processLaurelFile (filePath : String) : IO (Array Diagnostic) := do let laurelDialect : Strata.Dialect := Laurel let (inputContext, strataProgram) ← Strata.Elab.parseDialectIntoConcreteAst filePath laurelDialect @@ -50,12 +29,7 @@ def processLaurelFile (filePath : String) : IO (List Diagnostic) := do throw (IO.userError s!"Translation errors: {transErrors}") -- Verify the program - let vcResults ← Laurel.verify "z3" laurelProgram - - -- Convert VCResults to Diagnostics - -- The header "program {dialect};\n\n" adds 2 lines, so subtract 2 from line numbers - let headerOffset := 2 - let diagnostics := vcResults.filterMap (vcResultToDiagnostic headerOffset) |>.toList + let diagnostics ← Laurel.verifyToDiagnostics "z3" laurelProgram pure diagnostics diff --git a/StrataTest/Util/TestDiagnostics.lean b/StrataTest/Util/TestDiagnostics.lean index 98ee1e771e..a654af4039 100644 --- a/StrataTest/Util/TestDiagnostics.lean +++ b/StrataTest/Util/TestDiagnostics.lean @@ -4,20 +4,10 @@ SPDX-License-Identifier: Apache-2.0 OR MIT -/ -namespace StrataTest.Util - -/-- A position in a source file -/ -structure Position where - line : Nat - column : Nat - deriving Repr, BEq +import Strata.Languages.Boogie.Verifier -/-- A diagnostic produced by analyzing a file -/ -structure Diagnostic where - start : Position - ending : Position - message : String - deriving Repr, BEq +open Strata +namespace StrataTest.Util /-- A diagnostic expectation parsed from source comments -/ structure DiagnosticExpectation where @@ -57,7 +47,7 @@ def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation let message := (": ".intercalate messageParts).trim -- Calculate column positions (carets are relative to line start including comment spacing) - let commentPrefix := (line.takeWhile (fun c => c == ' ' || c == '\t')).length + 1 + "//".length + let commentPrefix := (line.takeWhile (fun c => c == ' ' || c == '\t')).length + "//".length let caretColStart := commentPrefix + caretStart.byteIdx let caretColEnd := commentPrefix + caretEnd.byteIdx @@ -88,7 +78,7 @@ def matchesDiagnostic (diag : Diagnostic) (exp : DiagnosticExpectation) : Bool : /-- Generic test function for files with diagnostic expectations. Takes a function that processes a file path and returns a list of diagnostics. -/ -def testFile (processFn : String -> IO (List Diagnostic)) (filePath : String) : IO Unit := do +def testFile (processFn : String -> IO (Array Diagnostic)) (filePath : String) : IO Unit := do let content <- IO.FS.readFile filePath -- Parse diagnostic expectations from comments @@ -117,14 +107,14 @@ def testFile (processFn : String -> IO (List Diagnostic)) (filePath : String) : unmatchedDiagnostics := unmatchedDiagnostics.append [diag] -- Report results - if allMatched && diagnostics.length == expectedErrors.length then + if allMatched && diagnostics.size == expectedErrors.length then IO.println s!"✓ Test passed: All {expectedErrors.length} error(s) matched" -- Print details of matched expectations for exp in expectedErrors do IO.println s!" - Line {exp.line}, Col {exp.colStart}-{exp.colEnd}: {exp.message}" else IO.println s!"✗ Test failed: Mismatched diagnostics" - IO.println s!"\nExpected {expectedErrors.length} error(s), got {diagnostics.length} diagnostic(s)" + IO.println s!"\nExpected {expectedErrors.length} error(s), got {diagnostics.size} diagnostic(s)" if unmatchedExpectations.length > 0 then IO.println s!"\nUnmatched expected diagnostics:" From b12d78169cfcec5b341b157e517b38149be462ae Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 13:48:28 +0100 Subject: [PATCH 29/68] Cleanup --- Strata/Languages/Laurel/Examples/AssertFalse.lr.st | 2 +- .../Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean | 7 ------- 2 files changed, 1 insertion(+), 8 deletions(-) diff --git a/Strata/Languages/Laurel/Examples/AssertFalse.lr.st b/Strata/Languages/Laurel/Examples/AssertFalse.lr.st index 6c639af612..ebf246aba9 100644 --- a/Strata/Languages/Laurel/Examples/AssertFalse.lr.st +++ b/Strata/Languages/Laurel/Examples/AssertFalse.lr.st @@ -7,7 +7,7 @@ procedure foo() { assert true; assert false; // ^^^^^^^^^^^^^ error: assertion does not hold - assert false; // TODO: decide if this has an error + assert false; // ^^^^^^^^^^^^^ error: assertion does not hold } diff --git a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean index 51f74b5761..8a4fb0118c 100644 --- a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean +++ b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean @@ -12,16 +12,12 @@ import Strata.Languages.Boogie.Expressions namespace Laurel - open Laurel open Std (ToFormat Format format) open Strata (QualifiedIdent Arg SourceRange) open Lean.Parser (InputContext) open Imperative (MetaData Uri FileRange) - -/- Translation Monad -/ - structure TransState where inputCtx : InputContext errors : Array String @@ -36,8 +32,6 @@ def TransM.error [Inhabited α] (msg : String) : TransM α := do modify fun s => { s with errors := s.errors.push msg } return panic msg -/- Metadata -/ - def SourceRange.toMetaData (ictx : InputContext) (sr : SourceRange) : Imperative.MetaData Boogie.Expression := let file := ictx.fileName let startPos := ictx.fileMap.toPosition sr.start @@ -114,7 +108,6 @@ partial def translateStmtExpr (arg : Arg) : TransM StmtExpr := do let stmts ← translateSeqCommand op.args[0]! return .Block stmts none else if op.name == q`Laurel.literalBool then - -- literalBool wraps a bool value (boolTrue or boolFalse) let boolVal ← translateBool op.args[0]! return .LiteralBool boolVal else if op.name == q`Laurel.boolTrue then From 84235b4d6b38cfba352862d973cac03e37282f5d Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 10 Dec 2025 14:24:26 +0100 Subject: [PATCH 30/68] Fix Laurel/TestGrammar --- StrataTest/DDM/TestGrammar.lean | 7 ++----- StrataTest/Languages/Laurel/Grammar/TestGrammar.lean | 4 +--- 2 files changed, 3 insertions(+), 8 deletions(-) diff --git a/StrataTest/DDM/TestGrammar.lean b/StrataTest/DDM/TestGrammar.lean index e4b9b5cce9..43d5a6889e 100644 --- a/StrataTest/DDM/TestGrammar.lean +++ b/StrataTest/DDM/TestGrammar.lean @@ -60,13 +60,10 @@ structure GrammarTestResult where Returns: - GrammarTestResult with parse/format results -/ def testGrammarFile (dialect: Dialect) (filePath : String) : IO GrammarTestResult := do - -- Read file content - let content ← IO.FS.readFile filePath - try - let (_, ddmProgram) ← Strata.Elab.parseDialectIntoConcreteAst filePath dialect + let (inputContext, ddmProgram) ← Strata.Elab.parseDialectIntoConcreteAst filePath dialect let formatted := ddmProgram.format.render - let normalizedInput := normalizeWhitespace (stripComments content) + let normalizedInput := normalizeWhitespace (stripComments inputContext.inputString) let normalizedOutput := normalizeWhitespace formatted let isMatch := normalizedInput == normalizedOutput diff --git a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean index f7f038f15c..96777c83c4 100644 --- a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean +++ b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean @@ -16,10 +16,8 @@ namespace Laurel def testAssertFalse : IO Unit := do let laurelDialect: Strata.Dialect := Laurel - let loader := Elab.LoadedDialects.ofDialects! #[initDialect, laurelDialect] - let filePath := "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" - let result ← testGrammarFile loader "Laurel" filePath + let result ← testGrammarFile laurelDialect filePath if !result.normalizedMatch then throw (IO.userError "Test failed: formatted output does not match input") From a3e085619cb6b2352f3003924195e7a2e41d23bc Mon Sep 17 00:00:00 2001 From: Josh Cohen <36058610+joscoh@users.noreply.github.com> Date: Wed, 10 Dec 2025 15:04:00 -0500 Subject: [PATCH 31/68] Fix alpha equivalence for Boogie programs (#265) Fixes Issue #253 This PR changes alpha-equivalence to build identifier maps between programs in both directions rather than only one, fixing the problem of dealing inconsistently with shadowed variable bindings. This is somewhat more general than what is needed for procedure inlining (e.g. adding the check that the outputs to procedures are pairwise alpha-equivalent) but could be useful if alpha equivalence is needed in the future. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Josh Cohen --- StrataTest/Transform/ProcedureInlining.lean | 49 ++++++++++++--------- 1 file changed, 27 insertions(+), 22 deletions(-) diff --git a/StrataTest/Transform/ProcedureInlining.lean b/StrataTest/Transform/ProcedureInlining.lean index 763b433530..29875c250b 100644 --- a/StrataTest/Transform/ProcedureInlining.lean +++ b/StrataTest/Transform/ProcedureInlining.lean @@ -29,16 +29,18 @@ section ProcedureInliningExamples structure IdMap where - vars: Map String String + vars: (Map String String × Map String String) labels: Map String String private def IdMap.updateVars (map:IdMap) (newmap: List (String × String)) : Except Format IdMap := do - let newvars ← newmap.foldlM (fun m ((oldid,newid):String × String) => - match Map.find? m oldid with - | .some x => .error (f!"Has duplicated definition of var " ++ oldid ++ + let newvars ← newmap.foldlM (fun (m1, m2) ((oldid,newid):String × String) => + match Map.find? m1 oldid, Map.find? m2 newid with + | .some x, _ => .error (f!"Has duplicated definition of var " ++ oldid ++ "(previously mapped to " ++ x ++ ")") - | .none => return (m.insert oldid newid)) + | _, .some y => .error (f!"Has duplicated definition of var " ++ newid ++ + "(previously mapped to " ++ y ++ ")") + | .none, .none => return (m1.insert oldid newid, m2.insert newid oldid)) map.vars return { map with vars := newvars } @@ -52,34 +54,34 @@ private def IdMap.updateLabel (map:IdMap) (frlbl:String) (tolbl:String) else .error ("Label " ++ frlbl ++ " is already mapped to " ++ x ++ " but tried to map to " ++ tolbl) -private def IdMap.varMapsTo (map:IdMap) (fr:String) (to:String): Bool := - match Map.find? map.vars fr with - | .none => false - | .some x => x == to - private def IdMap.lblMapsTo (map:IdMap) (fr:String) (to:String): Bool := match Map.find? map.labels fr with | .none => false | .some x => x == to -private def substExpr (e1:Expression.Expr) (map:IdMap) := - map.vars.foldl +private def substExpr (e1:Expression.Expr) (map:Map String String) (isReverse: Bool) := + map.foldl (fun (e:Expression.Expr) ((i1,i2):String × String) => -- old_id has visibility of temp because the new local variables were -- created by BoogieGenM. - let old_id:Expression.Ident := { name := i1, metadata := Visibility.temp } -- new_expr has visibility of unres because that is the default setting -- from DDM parsed program, and the substituted program is supposed to be -- equivalent to the answer program translated from DDM + -- These must be reversed when checking e2 -> e1 + let old_vis := if not isReverse then Visibility.temp else Visibility.unres + let new_vis := if not isReverse then Visibility.unres else Visibility.temp + let old_id:Expression.Ident := { name := i1, metadata := old_vis } + let new_expr:Expression.Expr := .fvar () - { name := i2, metadata := Visibility.unres } .none + { name := i2, metadata := new_vis } .none e.substFvar old_id new_expr) e1 private def alphaEquivExprs (e1 e2: Expression.Expr) (map:IdMap) : Bool := - (substExpr e1 map).eraseTypes == e2.eraseTypes + (substExpr e1 (map.vars.fst) false).eraseTypes == e2.eraseTypes && + (substExpr e2 (map.vars.snd) true).eraseTypes == e1.eraseTypes private def alphaEquivExprsOpt (e1 e2: Option Expression.Expr) (map:IdMap) : Except Format Bool := @@ -97,9 +99,10 @@ private def alphaEquivIdents (e1 e2: Expression.Ident) (map:IdMap) (e1.metadata == Visibility.temp && e2.metadata == Visibility.unres) || -- Caes 2: both e1 and e2 are from DDM (e1.metadata == e2.metadata)) && - (match Map.find? map.vars e1.name with - | .some n' => n' == e2.name - | .none => e1.name == e2.name) + (match Map.find? map.vars.fst e1.name, Map.find? map.vars.snd e2.name with + | .some n', .some m' => n' == e2.name && m' == e1.name + | .none, .none => e1.name == e2.name + | _, _ => false ) mutual @@ -172,7 +175,8 @@ partial def alphaEquivStatement (s1 s2: Boogie.Statement) (map:IdMap) | (.cmd (.set n1 e1 _), .cmd (.set n2 e2 _)) => if ¬ alphaEquivExprs e1 e2 map then mk_err f!"RHS of sets do not match \ - \n(subst of e1: {repr (substExpr e1 map)})\n(e2: {repr e2})" + \n(subst of e1: {repr (substExpr e1 map.vars.fst false)})\n(e2: {repr e2}) + \n(subst of e2: {repr (substExpr e2 map.vars.snd true)})\n(e1: {repr e1})" else if ¬ alphaEquivIdents n1 n2 map then mk_err "LHS of sets do not match" else @@ -206,12 +210,13 @@ private def alphaEquiv (p1 p2:Boogie.Procedure):Except Format Bool := do .error (s!"# statements do not match: inlined fn one has {p1.body.length}" ++ s!" whereas the answer has {p2.body.length}") else - let newmap:IdMap := IdMap.mk [] [] + let newmap:IdMap := IdMap.mk ([], []) [] let stmts := (p1.body.zip p2.body) - let _ ← List.foldlM (fun (map:IdMap) (s1,s2) => + let m ← List.foldlM (fun (map:IdMap) (s1,s2) => alphaEquivStatement s1 s2 map) newmap stmts - return .true + -- The corresponding outputs should be pairwise α-equivalent + return ((p1.header.outputs.zip p2.header.outputs).map (fun ((x, _), (y, _)) => alphaEquivIdents x y m)).all id From 00d8b83ed359261063d93518896a317818604b91 Mon Sep 17 00:00:00 2001 From: Joe Hendrix Date: Wed, 10 Dec 2025 16:56:43 -0800 Subject: [PATCH 32/68] Minor cleanups - particularly to Python DDM code (#260) *Issue #, if available:* *Description of changes:* By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. Co-authored-by: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> --- Tools/Python/strata/base.py | 41 ++++++++++++++++---------------- Tools/Python/strata/gen.py | 27 ++++++++++----------- Tools/Python/strata/pythonast.py | 2 +- docs/ddm/StrataDoc.lean | 2 +- 4 files changed, 36 insertions(+), 36 deletions(-) diff --git a/Tools/Python/strata/base.py b/Tools/Python/strata/base.py index b43b20e388..704e0e9f0e 100644 --- a/Tools/Python/strata/base.py +++ b/Tools/Python/strata/base.py @@ -456,26 +456,6 @@ def arg_to_ion(a : Arg) -> object: assert isinstance(a, CommaSepBy), f'Expected {type(a)} to be a CommaSepBy.' return ion_sexp(ion_symbol("commaSepList"), ann_to_ion(a.ann), *(arg_to_ion(e) for e in a.values)) -_programSym = ion.SymbolToken(u'program', None, None) - -class Program: - dialect : str - command : list[Operation] - - def __init__(self, dialect: str): - self.dialect = dialect - self.commands = [] - - def add(self, command : Operation): - assert type(command) is Operation - self.commands.append(command) - - def to_ion(self): - return [ - ion_sexp(_programSym, self.dialect), - *(cmd.to_ion() for cmd in self.commands) - ] - def metadata_arg_to_ion(value): if value is None: return "none" @@ -843,6 +823,27 @@ def to_ion(self): r.append(d.to_ion()) return r +_programSym = ion.SymbolToken(u'program', None, None) + +class Program: + dialect : Dialect + command : list[Operation] + + def __init__(self, dialect: Dialect): + self.dialect = dialect + self.commands = [] + + def add(self, command : Operation): + assert type(command) is Operation + self.commands.append(command) + + def to_ion(self): + return [ + ion_sexp(_programSym, self.dialect.name), + *(cmd.to_ion() for cmd in self.commands) + ] + + # FIXME: See if we can find way to keep this in sync with Lean implementation. # Perhaps we can have Lean implementation export the dialect as a Ion file and # ship it with Python library so we can read it in. diff --git a/Tools/Python/strata/gen.py b/Tools/Python/strata/gen.py index 0b43560a73..beb89c4841 100755 --- a/Tools/Python/strata/gen.py +++ b/Tools/Python/strata/gen.py @@ -8,35 +8,36 @@ """ import amazon.ion.simpleion as ion import argparse -from strata import Dialect, Program +from pathlib import Path +from strata import Program import strata.pythonast as pythonast import sys -from pathlib import Path def write_dialect(dir : Path): dialect = pythonast.PythonAST - if not dir.is_dir(): - print(f"Directory {dir} does not exist.", file=sys.stderr) - exit(1) + if dir.exists(): + if not dir.is_dir(): + print(f"{dir} is not a directory.", file=sys.stderr) + sys.exit(1) + else: + dir.mkdir(parents=True) output = dir / f"{dialect.name}.dialect.st.ion" with output.open('wb') as w: ion.dump(dialect.to_ion(), w, binary=True) print(f"Wrote {dialect.name} dialect to {output}") -def parse_ast(contents : bytes, path : Path) -> Program: +def parse_ast(path : Path) -> Program: try: - (_, p) = pythonast.parse_module(contents, path) + (_, p) = pythonast.parse_module(path.read_bytes(), path) except SyntaxError as e: print(f"Error parsing {path}:\n {e}", file=sys.stderr) - exit(1) + sys.exit(1) return p def py_to_strata_imp(args): path = Path(args.python) - with path.open('rb') as r: - contents = r.read() - p = parse_ast(contents, path) + p = parse_ast(path) with open(args.output, 'wb') as w: ion.dump(p.to_ion(), w, binary=True) @@ -53,9 +54,7 @@ def check_ast_imp(args): for p in files: total += 1 try: - with p.open('rb') as r: - contents = r.read() - _ = pythonast.parse_module(contents, p) + _ = pythonast.parse_module(p.read_bytes(), p) except SyntaxError as e: print(f'{p} {type(e).__name__}: {e}') total -= 1 diff --git a/Tools/Python/strata/pythonast.py b/Tools/Python/strata/pythonast.py index 8bab499194..eeed136a20 100644 --- a/Tools/Python/strata/pythonast.py +++ b/Tools/Python/strata/pythonast.py @@ -235,6 +235,6 @@ def parse_module(source : bytes, filename : str | PathLike = "") -> tup a = ast.parse(source, mode='exec', filename=filename) assert isinstance(a, ast.Module) - p = strata.Program(PythonAST.name) + p = strata.Program(PythonAST) p.add(ast_to_op(m, a)) return (m, p) \ No newline at end of file diff --git a/docs/ddm/StrataDoc.lean b/docs/ddm/StrataDoc.lean index 376842f668..28b380cb62 100644 --- a/docs/ddm/StrataDoc.lean +++ b/docs/ddm/StrataDoc.lean @@ -88,7 +88,7 @@ fn true_lit : Bool => "true"; fn false_lit : Bool => "false"; // Introduce basic Boolean operations. -fn not_expr (tp : Type, a : tp) : tp => "-" a; +fn not_expr (a : Bool) : Bool => "-" a; fn and (a : Bool, b : Bool) : Bool => @[prec(10), leftassoc] a " && " b; fn or (a : Bool, b : Bool) : Bool => @[prec(8), leftassoc] a " || " b; fn imp (a : Bool, b : Bool) : Bool => @[prec(8), leftassoc] a " ==> " b; From b2ae3dcc79284543480ed9fed587b6a3b7544958 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Thu, 11 Dec 2025 13:09:35 +0100 Subject: [PATCH 33/68] Move Boogie examples --- Strata.lean | 1 - .../Languages/Boogie/Examples/AdvancedMaps.lean | 0 .../Languages/Boogie/Examples/AdvancedQuantifiers.lean | 0 .../Languages/Boogie/Examples/AssertionDefaultNames.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Axioms.lean | 0 .../Languages/Boogie/Examples/BitVecParse.lean | 0 .../Languages/Boogie/Examples/DDMAxiomsExtraction.lean | 0 .../Languages/Boogie/Examples/DDMTransform.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Examples.lean | 0 .../Languages/Boogie/Examples/FailingAssertion.lean | 0 .../Languages/Boogie/Examples/FreeRequireEnsure.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Functions.lean | 0 .../Languages/Boogie/Examples/GeneratedLabels.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Goto.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Havoc.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Loops.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Map.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Min.lean | 0 .../Languages/Boogie/Examples/OldExpressions.lean | 0 .../Languages/Boogie/Examples/PrecedenceCheck.lean | 0 .../Languages/Boogie/Examples/ProcedureCall.lean | 0 .../Languages/Boogie/Examples/Quantifiers.lean | 0 .../Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean | 0 .../Languages/Boogie/Examples/RealBitVector.lean | 0 .../Languages/Boogie/Examples/RecursiveProcIte.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/Regex.lean | 0 .../Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/SimpleProc.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/String.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/TypeAlias.lean | 0 {Strata => StrataTest}/Languages/Boogie/Examples/TypeDecl.lean | 0 .../Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean | 0 .../Languages/Boogie/Examples/UnreachableAssert.lean | 0 33 files changed, 1 deletion(-) rename {Strata => StrataTest}/Languages/Boogie/Examples/AdvancedMaps.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/AdvancedQuantifiers.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/AssertionDefaultNames.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Axioms.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/BitVecParse.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/DDMAxiomsExtraction.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/DDMTransform.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Examples.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/FailingAssertion.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/FreeRequireEnsure.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Functions.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/GeneratedLabels.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Goto.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Havoc.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Loops.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Map.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Min.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/OldExpressions.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/PrecedenceCheck.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/ProcedureCall.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Quantifiers.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/RealBitVector.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/RecursiveProcIte.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Regex.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/SimpleProc.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/String.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/TypeAlias.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/TypeDecl.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/UnreachableAssert.lean (100%) diff --git a/Strata.lean b/Strata.lean index 3f98701dee..1e3c8180f1 100644 --- a/Strata.lean +++ b/Strata.lean @@ -16,7 +16,6 @@ import Strata.DL.Lambda.Lambda import Strata.DL.Imperative.Imperative /- Boogie -/ -import Strata.Languages.Boogie.Examples.Examples import Strata.Languages.Boogie.StatementSemantics /- CSimp -/ diff --git a/Strata/Languages/Boogie/Examples/AdvancedMaps.lean b/StrataTest/Languages/Boogie/Examples/AdvancedMaps.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/AdvancedMaps.lean rename to StrataTest/Languages/Boogie/Examples/AdvancedMaps.lean diff --git a/Strata/Languages/Boogie/Examples/AdvancedQuantifiers.lean b/StrataTest/Languages/Boogie/Examples/AdvancedQuantifiers.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/AdvancedQuantifiers.lean rename to StrataTest/Languages/Boogie/Examples/AdvancedQuantifiers.lean diff --git a/Strata/Languages/Boogie/Examples/AssertionDefaultNames.lean b/StrataTest/Languages/Boogie/Examples/AssertionDefaultNames.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/AssertionDefaultNames.lean rename to StrataTest/Languages/Boogie/Examples/AssertionDefaultNames.lean diff --git a/Strata/Languages/Boogie/Examples/Axioms.lean b/StrataTest/Languages/Boogie/Examples/Axioms.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Axioms.lean rename to StrataTest/Languages/Boogie/Examples/Axioms.lean diff --git a/Strata/Languages/Boogie/Examples/BitVecParse.lean b/StrataTest/Languages/Boogie/Examples/BitVecParse.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/BitVecParse.lean rename to StrataTest/Languages/Boogie/Examples/BitVecParse.lean diff --git a/Strata/Languages/Boogie/Examples/DDMAxiomsExtraction.lean b/StrataTest/Languages/Boogie/Examples/DDMAxiomsExtraction.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/DDMAxiomsExtraction.lean rename to StrataTest/Languages/Boogie/Examples/DDMAxiomsExtraction.lean diff --git a/Strata/Languages/Boogie/Examples/DDMTransform.lean b/StrataTest/Languages/Boogie/Examples/DDMTransform.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/DDMTransform.lean rename to StrataTest/Languages/Boogie/Examples/DDMTransform.lean diff --git a/Strata/Languages/Boogie/Examples/Examples.lean b/StrataTest/Languages/Boogie/Examples/Examples.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Examples.lean rename to StrataTest/Languages/Boogie/Examples/Examples.lean diff --git a/Strata/Languages/Boogie/Examples/FailingAssertion.lean b/StrataTest/Languages/Boogie/Examples/FailingAssertion.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/FailingAssertion.lean rename to StrataTest/Languages/Boogie/Examples/FailingAssertion.lean diff --git a/Strata/Languages/Boogie/Examples/FreeRequireEnsure.lean b/StrataTest/Languages/Boogie/Examples/FreeRequireEnsure.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/FreeRequireEnsure.lean rename to StrataTest/Languages/Boogie/Examples/FreeRequireEnsure.lean diff --git a/Strata/Languages/Boogie/Examples/Functions.lean b/StrataTest/Languages/Boogie/Examples/Functions.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Functions.lean rename to StrataTest/Languages/Boogie/Examples/Functions.lean diff --git a/Strata/Languages/Boogie/Examples/GeneratedLabels.lean b/StrataTest/Languages/Boogie/Examples/GeneratedLabels.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/GeneratedLabels.lean rename to StrataTest/Languages/Boogie/Examples/GeneratedLabels.lean diff --git a/Strata/Languages/Boogie/Examples/Goto.lean b/StrataTest/Languages/Boogie/Examples/Goto.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Goto.lean rename to StrataTest/Languages/Boogie/Examples/Goto.lean diff --git a/Strata/Languages/Boogie/Examples/Havoc.lean b/StrataTest/Languages/Boogie/Examples/Havoc.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Havoc.lean rename to StrataTest/Languages/Boogie/Examples/Havoc.lean diff --git a/Strata/Languages/Boogie/Examples/Loops.lean b/StrataTest/Languages/Boogie/Examples/Loops.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Loops.lean rename to StrataTest/Languages/Boogie/Examples/Loops.lean diff --git a/Strata/Languages/Boogie/Examples/Map.lean b/StrataTest/Languages/Boogie/Examples/Map.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Map.lean rename to StrataTest/Languages/Boogie/Examples/Map.lean diff --git a/Strata/Languages/Boogie/Examples/Min.lean b/StrataTest/Languages/Boogie/Examples/Min.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Min.lean rename to StrataTest/Languages/Boogie/Examples/Min.lean diff --git a/Strata/Languages/Boogie/Examples/OldExpressions.lean b/StrataTest/Languages/Boogie/Examples/OldExpressions.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/OldExpressions.lean rename to StrataTest/Languages/Boogie/Examples/OldExpressions.lean diff --git a/Strata/Languages/Boogie/Examples/PrecedenceCheck.lean b/StrataTest/Languages/Boogie/Examples/PrecedenceCheck.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/PrecedenceCheck.lean rename to StrataTest/Languages/Boogie/Examples/PrecedenceCheck.lean diff --git a/Strata/Languages/Boogie/Examples/ProcedureCall.lean b/StrataTest/Languages/Boogie/Examples/ProcedureCall.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/ProcedureCall.lean rename to StrataTest/Languages/Boogie/Examples/ProcedureCall.lean diff --git a/Strata/Languages/Boogie/Examples/Quantifiers.lean b/StrataTest/Languages/Boogie/Examples/Quantifiers.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Quantifiers.lean rename to StrataTest/Languages/Boogie/Examples/Quantifiers.lean diff --git a/Strata/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean b/StrataTest/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean rename to StrataTest/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean diff --git a/Strata/Languages/Boogie/Examples/RealBitVector.lean b/StrataTest/Languages/Boogie/Examples/RealBitVector.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/RealBitVector.lean rename to StrataTest/Languages/Boogie/Examples/RealBitVector.lean diff --git a/Strata/Languages/Boogie/Examples/RecursiveProcIte.lean b/StrataTest/Languages/Boogie/Examples/RecursiveProcIte.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/RecursiveProcIte.lean rename to StrataTest/Languages/Boogie/Examples/RecursiveProcIte.lean diff --git a/Strata/Languages/Boogie/Examples/Regex.lean b/StrataTest/Languages/Boogie/Examples/Regex.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Regex.lean rename to StrataTest/Languages/Boogie/Examples/Regex.lean diff --git a/Strata/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean b/StrataTest/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean rename to StrataTest/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean diff --git a/Strata/Languages/Boogie/Examples/SimpleProc.lean b/StrataTest/Languages/Boogie/Examples/SimpleProc.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/SimpleProc.lean rename to StrataTest/Languages/Boogie/Examples/SimpleProc.lean diff --git a/Strata/Languages/Boogie/Examples/String.lean b/StrataTest/Languages/Boogie/Examples/String.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/String.lean rename to StrataTest/Languages/Boogie/Examples/String.lean diff --git a/Strata/Languages/Boogie/Examples/TypeAlias.lean b/StrataTest/Languages/Boogie/Examples/TypeAlias.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/TypeAlias.lean rename to StrataTest/Languages/Boogie/Examples/TypeAlias.lean diff --git a/Strata/Languages/Boogie/Examples/TypeDecl.lean b/StrataTest/Languages/Boogie/Examples/TypeDecl.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/TypeDecl.lean rename to StrataTest/Languages/Boogie/Examples/TypeDecl.lean diff --git a/Strata/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean b/StrataTest/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean rename to StrataTest/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean diff --git a/Strata/Languages/Boogie/Examples/UnreachableAssert.lean b/StrataTest/Languages/Boogie/Examples/UnreachableAssert.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/UnreachableAssert.lean rename to StrataTest/Languages/Boogie/Examples/UnreachableAssert.lean From ea3438f46cb632f6bde030ee60c2e3ba4b87da82 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Thu, 11 Dec 2025 13:43:01 +0100 Subject: [PATCH 34/68] Rename --- Strata/DDM/Elab.lean | 2 +- StrataTest/DDM/TestGrammar.lean | 2 +- StrataTest/Languages/Laurel/TestExamples.lean | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/Strata/DDM/Elab.lean b/Strata/DDM/Elab.lean index b4256493e0..a03118f7b2 100644 --- a/Strata/DDM/Elab.lean +++ b/Strata/DDM/Elab.lean @@ -408,7 +408,7 @@ def elabDialect | .dialect loc dialect => elabDialectRest fm dialects #[] inputContext loc dialect startPos stopPos -def parseDialectIntoConcreteAst (filePath : String) (dialect: Dialect) : IO (InputContext × Strata.Program) := do +def parseStrataProgramFromDialect (filePath : String) (dialect: Dialect) : IO (InputContext × Strata.Program) := do let dialects := Elab.LoadedDialects.ofDialects! #[initDialect, dialect] let bytes ← Strata.Util.readBinInputSource filePath diff --git a/StrataTest/DDM/TestGrammar.lean b/StrataTest/DDM/TestGrammar.lean index 43d5a6889e..742a0f7ea7 100644 --- a/StrataTest/DDM/TestGrammar.lean +++ b/StrataTest/DDM/TestGrammar.lean @@ -61,7 +61,7 @@ structure GrammarTestResult where - GrammarTestResult with parse/format results -/ def testGrammarFile (dialect: Dialect) (filePath : String) : IO GrammarTestResult := do try - let (inputContext, ddmProgram) ← Strata.Elab.parseDialectIntoConcreteAst filePath dialect + let (inputContext, ddmProgram) ← Strata.Elab.parseStrataProgramFromDialect filePath dialect let formatted := ddmProgram.format.render let normalizedInput := normalizeWhitespace (stripComments inputContext.inputString) let normalizedOutput := normalizeWhitespace formatted diff --git a/StrataTest/Languages/Laurel/TestExamples.lean b/StrataTest/Languages/Laurel/TestExamples.lean index 56e9a883f9..328ce8d221 100644 --- a/StrataTest/Languages/Laurel/TestExamples.lean +++ b/StrataTest/Languages/Laurel/TestExamples.lean @@ -21,7 +21,7 @@ namespace Laurel def processLaurelFile (filePath : String) : IO (Array Diagnostic) := do let laurelDialect : Strata.Dialect := Laurel - let (inputContext, strataProgram) ← Strata.Elab.parseDialectIntoConcreteAst filePath laurelDialect + let (inputContext, strataProgram) ← Strata.Elab.parseStrataProgramFromDialect filePath laurelDialect -- Convert to Laurel.Program using parseProgram (handles unwrapping the program operation) let (laurelProgram, transErrors) := Laurel.TransM.run inputContext (Laurel.parseProgram strataProgram) From 977786dcd26dd5e9b94d080b17e9970ff18b428d Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Thu, 11 Dec 2025 17:35:53 +0100 Subject: [PATCH 35/68] Add more Laurel examples (#228) ### Changes Documentation/test changes that are based viewed through the diff ### Testing N/A By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> --- .../Laurel/Examples/ConstrainedTypes.lr.st | 15 --- .../Fundamentals/1. AssertFalse.lr.st | 15 +++ .../Fundamentals/10. ConstrainedTypes.lr.st | 21 +++ .../2. NestedImpureStatements.lr.st | 39 ++++++ .../Fundamentals/3. ControlFlow.lr.st | 72 +++++++++++ .../Examples/Fundamentals/4. LoopJumps.lr.st | 59 +++++++++ .../Fundamentals/5. ProcedureCalls.lr.st | 52 ++++++++ .../Fundamentals/6. Preconditions.lr.st | 50 ++++++++ .../Examples/Fundamentals/7. Decreases.lr.st | 55 ++++++++ .../Fundamentals/8. Postconditions.lr.st | 55 ++++++++ .../Fundamentals/9. Nondeterministic.lr.st | 65 ++++++++++ Strata/Languages/Laurel/Examples/Jumps.lr.st | 26 ---- .../Examples/Objects/1. ImmutableFields.lr.st | 26 ++++ .../Examples/Objects/2. MutableFields.lr.st | 67 ++++++++++ .../Examples/Objects/3. ReadsClauses.lr.st | 78 ++++++++++++ .../Examples/Objects/4. ModifiesClauses.lr.st | 92 ++++++++++++++ .../WIP/5. Allocation.lr.st} | 46 ++++--- .../Objects/WIP/5. Constructors.lr.st | 49 +++++++ .../WIP/6. TypeTests.lr.st} | 18 ++- .../WIP/7. InstanceCallables.lr.st} | 10 +- .../WIP/8. TerminationInheritance.lr.st | 21 +++ .../Examples/Objects/WIP/9. Closures.lr.st | 120 ++++++++++++++++++ .../Laurel/Examples/PureAllocation.lr.st | 26 ---- .../Examples/ReadsAndModifiesClauses.lr.st | 59 --------- .../Languages/Laurel/Examples/StmtExpr.lr.st | 37 ------ Strata/Languages/Laurel/Laurel.lean | 34 ++--- 26 files changed, 991 insertions(+), 216 deletions(-) delete mode 100644 Strata/Languages/Laurel/Examples/ConstrainedTypes.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/10. ConstrainedTypes.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/2. NestedImpureStatements.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/3. ControlFlow.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/4. LoopJumps.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/5. ProcedureCalls.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/6. Preconditions.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/7. Decreases.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/8. Postconditions.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/9. Nondeterministic.lr.st delete mode 100644 Strata/Languages/Laurel/Examples/Jumps.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Objects/1. ImmutableFields.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Objects/2. MutableFields.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Objects/3. ReadsClauses.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Objects/4. ModifiesClauses.lr.st rename Strata/Languages/Laurel/Examples/{Allocation.lr.st => Objects/WIP/5. Allocation.lr.st} (59%) create mode 100644 Strata/Languages/Laurel/Examples/Objects/WIP/5. Constructors.lr.st rename Strata/Languages/Laurel/Examples/{TypeTests.lr.st => Objects/WIP/6. TypeTests.lr.st} (52%) rename Strata/Languages/Laurel/Examples/{InstanceCallables.lr.st => Objects/WIP/7. InstanceCallables.lr.st} (74%) create mode 100644 Strata/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st create mode 100644 Strata/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st delete mode 100644 Strata/Languages/Laurel/Examples/PureAllocation.lr.st delete mode 100644 Strata/Languages/Laurel/Examples/ReadsAndModifiesClauses.lr.st delete mode 100644 Strata/Languages/Laurel/Examples/StmtExpr.lr.st diff --git a/Strata/Languages/Laurel/Examples/ConstrainedTypes.lr.st b/Strata/Languages/Laurel/Examples/ConstrainedTypes.lr.st deleted file mode 100644 index 278ed6ba02..0000000000 --- a/Strata/Languages/Laurel/Examples/ConstrainedTypes.lr.st +++ /dev/null @@ -1,15 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ --- Constrained primitive type -constrained nat = x: int where x >= 0 - --- Something analogous to an algebriac datatype -composite OptionBase {} -composite Some extends OptionBase { - value: int -} -composite None extends OptionBase -constrained Option = x: OptionBase where x is Some || x is None \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st new file mode 100644 index 0000000000..e09e7daefe --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st @@ -0,0 +1,15 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ +procedure foo() { + assert true; // pass + assert false; // error + assert false; // TODO: decide if this has an error +} + +procedure bar() { + assume false; // pass + assert true; // pass +} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/10. ConstrainedTypes.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/10. ConstrainedTypes.lr.st new file mode 100644 index 0000000000..31c73d96ac --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/10. ConstrainedTypes.lr.st @@ -0,0 +1,21 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +// Constrained primitive type +constrained nat = x: int where x >= 0 witness 0 + +// Something analogous to an algebriac datatype +composite Option {} +composite Some extends Option { + value: int +} +composite None extends Option +constrained SealedOption = x: Option where x is Some || x is None witness None + +procedure foo() returns (r: nat) { + // no assign to r. + // this is accepted. there is no definite-asignment checking since types may never be empty +} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/2. NestedImpureStatements.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/2. NestedImpureStatements.lr.st new file mode 100644 index 0000000000..6a822a8b91 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/2. NestedImpureStatements.lr.st @@ -0,0 +1,39 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +procedure nestedImpureStatements(): int { + var x = 0; + var y = 0; + if ((x = x + 1) == (y = x)) { + 1 + } else { + 2 + } +} + +procedure assertLocallyImpureCode() +{ + assert nestedImpureStatements() != 0; // pass +} + +/* +Translation towards SMT: + +function nestedImpureStatements(): int { + var x = 0; + var y = 0; + x = x + 1; + var t1 = x; + y = x; + var t2 = x; + if (t1 == t2) { + 1 + } else { + 2 + } +} + +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/3. ControlFlow.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/3. ControlFlow.lr.st new file mode 100644 index 0000000000..fdde81d0bb --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/3. ControlFlow.lr.st @@ -0,0 +1,72 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +procedure guards(a: int): int +{ + var b = a + 2; + if (b > 2) { + var c = b + 3; + if (c > 3) { + return c + 4; + } + var d = c + 5; + return d + 6; + } + var e = b + 1; + e +} + +/* +Translation towards expression form: + +function guards(a: int): int { + var b = a + 2; + if (b > 2) { + var c = b + 3; + if (c > 3) { + c + 4; + } else { + var d = c + 5; + d + 6; + } + } else { + var e = b + 1; + e + } +} +*/ + +procedure dag(a: int): int +{ + var b: int; + + if (a > 0) { + b = 1; + } else { + b = 2; + } + b +} + +/* +To translate towards SMT we only need to apply something like WP calculus. + Here's an example of what that looks like: + +function dag(a: int): int { + ( + assume a > 0; + assume b == 1; + b; + ) + OR + ( + assume a <= 0; + assume b == 2; + b; + ) +} + +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/4. LoopJumps.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/4. LoopJumps.lr.st new file mode 100644 index 0000000000..b3aeff0032 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/4. LoopJumps.lr.st @@ -0,0 +1,59 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ +procedure whileWithBreakAndContinue(steps: int, continueSteps: int, exitSteps: int): int { + var counter = 0 + { + while(steps > 0) + invariant counter >= 0 + { + { + if (steps == exitSteps) { + counter = -10; + exit breakBlock; + } + if (steps == continueSteps) { + exit continueBlock; + } + counter = counter + 1; + } continueBlock; + steps = steps - 1; + } + } breakBlock; + counter; +} + + +/* +Translation towards SMT: + +proof whileWithBreakAndContinue_body() { + var steps: int; + var continueSteps: int; + var exitSteps: int; + + var counter = 0; + + label loopStart; + assert counter >= 0; + if (steps > 0) { + if (steps == exitSteps) { + counter = -10; + goto breakLabel; + } + if (steps == continueSteps) { + goto continueLabel; + } + counter = counter + 1; + label continueLabel; + steps = steps - 1; + goto loopStart; + } + label breakLabel; + counter; +} + + +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/5. ProcedureCalls.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/5. ProcedureCalls.lr.st new file mode 100644 index 0000000000..d01f72d9c7 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/5. ProcedureCalls.lr.st @@ -0,0 +1,52 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +procedure fooReassign(): int { + var x = 0; + x = x + 1; + assert x == 1; + x = x + 1; + x +} + +procedure fooSingleAssign(): int { + var x = 0 + var x2 = x + 1; + var x3 = x2 + 1; + x3 +} + +procedure fooProof() { + assert fooReassign() == fooSingleAssign(); // passes +} + +/* +Translation towards SMT: + +function fooReassign(): int { + var x0 = 0; + var x1 = x0 + 1; + var x2 = x1 + 1; + x2 +} + +proof fooReassign_body { + var x = 0; + x = x + 1; + assert x == 1; +} + +function fooSingleAssign(): int { + var x = 0; + var x2 = x + 1; + var x3 = x2 + 1; + x3 +} + +proof fooProof_body { + assert fooReassign() == fooSingleAssign(); +} +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/6. Preconditions.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/6. Preconditions.lr.st new file mode 100644 index 0000000000..402b2fc638 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/6. Preconditions.lr.st @@ -0,0 +1,50 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ +procedure hasRequires(x: int): (r: int) + requires assert 1 == 1; x > 2 +{ + assert x > 0; // pass + assert x > 3; // fail + x + 1 +} + +procedure caller() { + var x = hasRequires(1) // fail + var y = hasRequires(3) // pass +} + +/* +Translation towards SMT: + +function hasRequires_requires(x: int): boolean { + x > 2 +} + +function hasRequires(x: int): int { + x + 1 +} + +proof hasRequires_requires { + assert 1 == 1; +} + +proof hasRequires_body { + var x: int; + assume hasRequires_requires(); + assert x > 0; // pass + assert x > 3; // fail +} + +proof caller_body { + var hasRequires_arg1 := 1; + assert hasRequires_ensures(hasRequires_arg1); // fail + var x := hasRequires(hasRequires_arg1); + + var hasRequires_arg1_2 := 3; + assert hasRequires_ensures(hasRequires_arg1_2); // pass + var y: int := hasRequires(hasRequires_arg1_2); +} +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/7. Decreases.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/7. Decreases.lr.st new file mode 100644 index 0000000000..cbb2ef51c8 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/7. Decreases.lr.st @@ -0,0 +1,55 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +/* +A decreases clause CAN be added to a procedure to prove that it terminates. +A procedure with a decreases clause may be called in an erased context. +*/ + +procedure noDecreases(x: int): boolean +procedure caller(x: int) + requires noDecreases(x) // error: noDecreases can not be called from a contract, because ... + +// Non-recursive procedures can use an empty decreases list and still prove termination +procedure noCyclicCalls() + decreases [] +{ + leaf(); // call passes since leaf is lower in the SCC call-graph. +} + +procedure leaf() decreases [1] { } + +// Decreases clauses are needed for recursive procedure calls. + +// Decreases clauses take a list of arguments +procedure mutualRecursionA(x: nat) + decreases [x, 1] +{ + mutualRecursionB(x); +} + +procedure mutualRecursionB(x: nat) + decreases [x, 0] +{ + if x != 0 { mutualRecursionA(x-1); } +} + +/* +Translation towards SMT: + +proof foo_body { + var x: nat; + assert decreases([x, 1], [x, 0]); +} + +proof bar_body { + var x: nat; + if (x != 0) { + assert decreases([x, 0], [x - 1, 1]); + } +} + +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/8. Postconditions.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/8. Postconditions.lr.st new file mode 100644 index 0000000000..662c25401e --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/8. Postconditions.lr.st @@ -0,0 +1,55 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ +procedure opaqueBody(x: int): (r: int) +// the presence of the ensures make the body opaque. we can consider more explicit syntax. + ensures assert 1 == 1; r >= 0 +{ + Math.abs(x) +} + +procedure transparantBody(x: int): int +{ + Math.abs(x) +} + +procedure caller() { + assert transparantBody(-1) == 1; // pass + assert opaqueBody(-1) >= 0 // pass + assert opaqueBody(-3) == opaqueBody(-3); // pass because no heap is used and this is a det procedure + assert opaqueBody(-1) == 1; // error +} + +/* +Translation towards SMT: + +function opaqueBody(x: int): boolean +// ensures axiom +axiom forall x ontrigger opaqueBody(x) :: let r = opaqueBody(x) in r >= 0 + +proof opaqueBody_ensures { + assert 1 == 1; // pass +} + +proof opaqueBody_body { + var x: int; + var r = Math.abs(x); + assert r >= 0; // pass +} + +function transparantBody(x: int): int { + Math.abs(x) +} + +proof caller_body { + assert transparantBody(-1); // pass + + var r_1: int := opaqueBody_ensures(-1); + assert r_1 >= 0; // pass, using axiom + + var r_2: int := opaqueBody_ensures(-1); + assert r_2 == 1; // error +} +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/9. Nondeterministic.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/9. Nondeterministic.lr.st new file mode 100644 index 0000000000..79a6c49bac --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Fundamentals/9. Nondeterministic.lr.st @@ -0,0 +1,65 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +/* +When a procedure is non-deterministic, +every invocation might return a different result, even if the inputs are the same. +It's comparable to having an IO monad. +*/ +nondet procedure nonDeterministic(x: int): (r: int) + ensures r > 0 +{ + assumed +} + +procedure caller() { + var x = nonDeterministic(1) + assert x > 0; -- pass + var y = nonDeterministic(1) + assert x == y; -- fail +} + +/* +Translation towards SMT: + +function nonDeterministic_relation(x: int, r: int): boolean +// ensures axiom +axiom forall x, r: int ontrigger nonDeterministic_relation(x, r) :: r > 0 + +proof nonDeterministic_body { + var x: int; + var r := Math.abs(x) + 1 + assert nonDeterministic_relation(x, r); +} + +proof caller_body { + var x: int; + assume nonDeterministic_relation(1, x); + assert x > 0; // pass + + var y: int; + assume nonDeterministic_relation(1, y); + assert x == y; // fail +} +*/ + +nondet procedure nonDeterminsticTransparant(x: int): (r: int) +{ + nonDeterministic(x + 1) +} + +/* +Translation towards SMT: + +function nonDeterminsticTransparant_relation(x: int, r: int): boolean { + nonDeterministic_relation(x + 1, r) +} +*/ + +procedure nonDeterministicCaller(x: int): int +{ + nonDeterministic(x) // error: can not call non-deterministic procedure from deterministic one +} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Jumps.lr.st b/Strata/Languages/Laurel/Examples/Jumps.lr.st deleted file mode 100644 index 4182afd604..0000000000 --- a/Strata/Languages/Laurel/Examples/Jumps.lr.st +++ /dev/null @@ -1,26 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ -val forLoopLikeWithBreakAndContinue = procedure(steps: int, continueSteps: int, exitSteps: int): int { - var counter = 0 - breakLabel { - while(steps > 0) - invariant counter >= 0 - { - continueLabel { - if (steps == exitSteps) { - counter = -10; - exit breakLabel; - } - if (steps == continueSteps) { - exit continueLabel; - } - counter = counter + 1 - } - steps = steps - 1; - } - } - counter; -} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Objects/1. ImmutableFields.lr.st b/Strata/Languages/Laurel/Examples/Objects/1. ImmutableFields.lr.st new file mode 100644 index 0000000000..8358dff90d --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Objects/1. ImmutableFields.lr.st @@ -0,0 +1,26 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +composite ImmutableContainer { + val value: int // val indicates immutability of field +} + +procedure valueReader(c: ImmutableContainer): int + { c.value } // no reads clause needed because value is immutable + +/* +Translation towards SMT: + +type Composite; +function ImmutableContainer_value(c: Composite): int + +function valueReader(c: Composite): int { + ImmutableContainer_value(c) +} + +proof valueReader_body { +} +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Objects/2. MutableFields.lr.st b/Strata/Languages/Laurel/Examples/Objects/2. MutableFields.lr.st new file mode 100644 index 0000000000..d1b3281728 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Objects/2. MutableFields.lr.st @@ -0,0 +1,67 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +composite Container { + var value: int // var indicates mutable field +} + +procedure foo(c: Container, d: Container): int + requires c != d +{ + var x = c.value; + d.value = d.value + 1; + assert x == c.value; // pass +} + +procedure caller(c: Container, d: Container) { + var x = foo(c, d); +} + +procedure impureContract(c: Container) + ensures foo(c, c) +// ^ error: a procedure that modifies the heap may not be called in pure context. + +/* +Translation towards SMT: + +type Composite; +type Field; +val value: Field + +function foo(heap_in: Heap, c: Composite, d: Composite) returns (r: int, out_heap: Heap) { + var heap = heap_in; + var x = read(heap, c, value); + heap = update(heap, d, value, read(heap, d, value)); + heap_out = heap; +} + +proof foo_body { + var heap_in; + var Heap; + var c: Composite; + var d: Composite; + var r: int; + var out_heap: Heap; + + var heap = heap_in; + var x = read(heap, c, value); + heap = update(heap, d, value, read(heap, d, value)); + assert x == read(heap, c, value); +} + +proof caller { + var heap_in; + var Heap; + var c: Composite; + var d: Composite; + var heap_out: Heap; + + heap = heap_in; + var x: int; + (x, heap) = foo(heap, c, d); + heap_out = heap; +} +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Objects/3. ReadsClauses.lr.st b/Strata/Languages/Laurel/Examples/Objects/3. ReadsClauses.lr.st new file mode 100644 index 0000000000..e96a919aa8 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Objects/3. ReadsClauses.lr.st @@ -0,0 +1,78 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +/* +Reads clauses CAN be placed on a deterministic procedure to generate a reads axiom. +This axioms states that the result of the procedure is the same if all arguments +and all read heap objects are the same +*/ + +composite Container { + var value: int +} + +procedure opaqueProcedure(c: Container): int + reads c + ensures true + +procedure foo(c: Container, d: Container) +{ + var x = opaqueProcedure(c); + d.value = 1; + var y = opaqueProcedure(c); + assert x == y; // proved using reads clause of opaqueProcedure + c.value = 1; + var z = opaqueProcedure(c); + assert x == z; +// ^^ error: could not prove assert +} + +procedure permissionLessReader(c: Container): int + reads {} + { c.value } +// ^^^^^^^ error: enclosing procedure 'permissionLessReader' does not have permission to read 'c.value' + +/* +Translation towards SMT: + +type Composite; +type Field; +val value: Field; + +function opaqueProcedure_ensures(heap: Heap, c: Container, r: int): boolean { + true +} + +axiom opaqueProcedure_reads(heap1: Heap, heap2: Heap, c: Container) { + heap1[c] == heap2[c] ==> varReader(heap1, c) == varReader(heap2, c) +} + +proof foo_body { + var heap: Heap; + var c: Container; + var d: Container; + + var x: int; + assume opaqueProcedure_ensures(heap, c, x); + heap = update(heap, d, value, 1); + var y: int; + assume opaqueBody_ensures(heap, c, y); + assert x == y; // pass + heap = update(heap, c, value, 1); + var z: int; + assume opaqueBody_ensures(heap, c, z); + assert x == z; // fail +} + +proof permissionLessReader_body { + var heap: Heap + var c: Container; + var reads_permissions: Set; + + assert reads_permissions[c]; // fail +} +*/ + diff --git a/Strata/Languages/Laurel/Examples/Objects/4. ModifiesClauses.lr.st b/Strata/Languages/Laurel/Examples/Objects/4. ModifiesClauses.lr.st new file mode 100644 index 0000000000..f72ccfac64 --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Objects/4. ModifiesClauses.lr.st @@ -0,0 +1,92 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +/* +A modifies clause CAN be placed on any procedure to generate a modifies axiom. +The modifies clause determines which references the procedure may modify. +This modifies axiom states how the in and out heap of the procedure relate. + +A modifies clause is crucial on opaque procedures, +since otherwise all heap state is lost after calling them. + +*/ +composite Container { + var value: int +} + +procedure modifyContainerOpaque(c: Container) + ensures true // makes this procedure opaque. Maybe we should use explicit syntax + modifies c +{ + modifyContainerTransparant(c); +} + +procedure modifyContainerTransparant(c: Container) +{ + c.value = c.value + 1; +} + +procedure caller(c: Container, d: Container) { + var x = d.value; + modifyContainerOpaque(c); + assert x == d.value; // pass +} + +procedure modifyContainerWithoutPermission(c: Container) + ensures true +{ + c.value = c.value + 1; +// ^ error: enclosing procedure 'modifyContainerWithoutPermission' does not have permission to modify 'c.value' +} + +/* +Possible translation towards SMT: + +type Composite +type Field +val value: Field + +function modifyContainer(heap_in: Heap, c: Composite) returns (heap_out: Heap) { + var heap = update(heap_in, c, value, read(heap_in, c, value)) + heap_out = heap; +} + +axiom modifyContainer_modifies(heap_in: Heap, c: Composite, other: Composite, heap_out: Heap) { + c != other ==> heap_in[other] == heap_out[other] +} + +proof caller_body { + var heap_in: Heap; + var c: Composite; + var d: Composite; + var heap_out: Heap; + + var heap = heap_in; + var x = read(heap, d, value); + heap = modifyContainer(heap_in, c); + assert x = read(heap, d, value); + heap_out = heap; +} + +proof modifyContainer_body { + var heap_in: Heap; + var c: Composite; + var heap_out: Heap; + val modify_permission: Set[Composite]; + + assume c in modify_permission; + assert c in modify_permission; // pass +} + +proof modifyContainerWithoutPermission_body { + var heap_in: Heap; + var c: Composite; + var heap_out: Heap; + val modify_permission: Set[Composite]; + + assert c in modify_permission; // fail +} +*/ \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Allocation.lr.st b/Strata/Languages/Laurel/Examples/Objects/WIP/5. Allocation.lr.st similarity index 59% rename from Strata/Languages/Laurel/Examples/Allocation.lr.st rename to Strata/Languages/Laurel/Examples/Objects/WIP/5. Allocation.lr.st index 61bda2f387..496c6ae7bf 100644 --- a/Strata/Languages/Laurel/Examples/Allocation.lr.st +++ b/Strata/Languages/Laurel/Examples/Objects/WIP/5. Allocation.lr.st @@ -1,77 +1,81 @@ -/- +/* Copyright Strata Contributors SPDX-License-Identifier: Apache-2.0 OR MIT --/ --- WIP. needs further design +*/ +// WIP. needs further design --- Create immutable composite +// Create immutable composite composite Immutable { val x: int val y: int invariant x + y >= 5 - val construct = procedure() + procedure construct() constructor requires contructing == {this} ensures constructing == {} { - x = 3; -- we can assign to an immutable field, while the target is in the constructing set. + x = 3; // we can assign to an immutable field, while the target is in the constructing set. y = 2; - construct this; -- checks that all fields of 'this' have been assigned + construct this; // checks that all fields of 'this' have been assigned } } -val foo = procedure() { - val immutable = Immutable.construct(); -- constructor instance method can be called as a static. +procedure foo() { + val immutable = Immutable.construct(); // constructor instance method can be called as a static. } --- Create immutable circle +// Create immutable circle composite ImmutableChainOfTwo { - val other: ChainOfTwo -- note the field is immutable + val other: ChainOfTwo // note the field is immutable - invariant other.other == this -- reading other.other is allowed because the field is immutable + invariant other.other == this // reading other.other is allowed because the field is immutable - val construct = constructor() + procedure construct() + constructor requires contructing == {this} ensures constructing == {} { var second = allocate(); assert constructing == {this, second}; - second.other = first; -- we can assign to a mutable field because second is in the constructing set + second.other = first; // we can assign to a mutable field because second is in the constructing set first.other = second; construct first; construct second; } - -- only used privately - val allocate = constructor() + // only used privately + procedure allocate() + constructor ensures constructing = {this} { - -- empty body + // empty body } } -val foo2 = procedure() { +procedure foo2() { val immutable = ImmutableChainOfTwo.construct(); val same = immutable.other.other; assert immutable =&= same; } --- Helper constructor +// Helper constructor composite UsesHelperConstructor { val x: int val y: int - val setXhelper = constructor() + procedure setXhelper() + constructor requires constructing == {this} ensures constructing == {this} && assigned(this.x) { this.x = 3; } - val construct = constructor() + procedure construct() + constructor requires contructing == {this} ensures constructing == {} { diff --git a/Strata/Languages/Laurel/Examples/Objects/WIP/5. Constructors.lr.st b/Strata/Languages/Laurel/Examples/Objects/WIP/5. Constructors.lr.st new file mode 100644 index 0000000000..77598f74af --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Objects/WIP/5. Constructors.lr.st @@ -0,0 +1,49 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ + +/* +WIP +*/ +composite Immutable { + val x: int + val y: int + var z: int + + invariant x + y == 6 + + procedure construct(): Immutable + // fields of Immutable are considered mutable inside this procedure + // and invariants of Immutable are not visible + // can only call procedures that are also constructing Immutable + constructs Immutable + modifies this + { + this.x = 3; + assignToY(); + // implicit: assert modifiesOf(construct()).forall(x -> x.invariant()); + } + + procedure assignToY() + constructs Immutable + { + this.y = 3; + } +} + +procedure foo() { + var c = new Immutable.construct(); + var temp = c.x; + c.z = 1; + assert c.x + c.y == 6; // pass + assert temp == c.x; // pass +} + +procedure pureCompositeAllocator(): boolean { + // can be called in a determinstic context + var i: Immutable = Immutable.construct(); + var j: Immutable = Immutable.construct(); + assert i =&= j; // error: refernce equality is not available on deterministic types +} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/TypeTests.lr.st b/Strata/Languages/Laurel/Examples/Objects/WIP/6. TypeTests.lr.st similarity index 52% rename from Strata/Languages/Laurel/Examples/TypeTests.lr.st rename to Strata/Languages/Laurel/Examples/Objects/WIP/6. TypeTests.lr.st index c3ce5f9dd5..8aead7caaf 100644 --- a/Strata/Languages/Laurel/Examples/TypeTests.lr.st +++ b/Strata/Languages/Laurel/Examples/Objects/WIP/6. TypeTests.lr.st @@ -1,8 +1,12 @@ -/- +/* Copyright Strata Contributors SPDX-License-Identifier: Apache-2.0 OR MIT --/ +*/ + +/* +WIP +*/ composite Base { var x: int } @@ -15,12 +19,12 @@ composite Extended2 extends Base { var z: int } -val typeTests = procedure(e: Extended1) { - var b: Base = e as Base; -- even upcasts are not implicit, but they pass statically +procedure typeTests(e: Extended1) { + var b: Base = e as Base; // even upcasts are not implicit, but they pass statically var e2 = e as Extended2; --- ^^ error: could not prove 'e' is of type 'Extended2' +// ^^ error: could not prove 'e' is of type 'Extended2' if (e is Extended2) { - -- unreachable, but that's OK - var e2pass = e as Extended2; -- no error + // unreachable, but that's OK + var e2pass = e as Extended2; // no error } } \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/InstanceCallables.lr.st b/Strata/Languages/Laurel/Examples/Objects/WIP/7. InstanceCallables.lr.st similarity index 74% rename from Strata/Languages/Laurel/Examples/InstanceCallables.lr.st rename to Strata/Languages/Laurel/Examples/Objects/WIP/7. InstanceCallables.lr.st index 293e1281b6..d2269525db 100644 --- a/Strata/Languages/Laurel/Examples/InstanceCallables.lr.st +++ b/Strata/Languages/Laurel/Examples/Objects/WIP/7. InstanceCallables.lr.st @@ -1,8 +1,8 @@ -/- +/* Copyright Strata Contributors SPDX-License-Identifier: Apache-2.0 OR MIT --/ +*/ composite Base { procedure foo(): int ensures result > 3 @@ -12,7 +12,7 @@ composite Base { composite Extender1 extends Base { procedure foo(): int ensures result > 4 --- ^^^^^^^ error: could not prove ensures clause guarantees that of extended method 'Base.foo' +// ^^^^^^^ error: could not prove ensures clause guarantees that of extended method 'Base.foo' { abstract } } @@ -21,11 +21,11 @@ composite Extender2 extends Base { procedure foo(): int ensures result > 2 { - this.value + 2 -- 'this' is an implicit variable inside instance callables + this.value + 2 // 'this' is an implicit variable inside instance callables } } val foo = procedure(b: Base) { var x = b.foo(); - assert x > 3; -- pass + assert x > 3; // pass } \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st b/Strata/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st new file mode 100644 index 0000000000..0a31449f4a --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st @@ -0,0 +1,21 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ +trait Base { + predicate foo() +} + +trait Extender extends Base { + // Commenting this method in or out should not change the result of termination checking + // predicate foo() +} + +datatype AnotherExtender extends Base = AnotherExtender(e: Extender) { + + predicate foo() + { + e.foo() + } +} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st b/Strata/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st new file mode 100644 index 0000000000..17cad41dea --- /dev/null +++ b/Strata/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st @@ -0,0 +1,120 @@ +/* + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +*/ +// Work in progress + +/* +Dafny example: + +method hasClosure() returns (r: int) + ensures r == 13 +{ + var x: int := 1; + x := x + 2; + var f: (int) -> int := (y: int) => assert x == 3; y + x + 4; + x := x + 5; // update is lost. + return f(6); +} + +class Wrapper { + var x: int +} + +method hasClosureAndWrapper(wrapper: Wrapper) returns (r: int) + modifies wrapper + ensures r == 15 +{ + wrapper.x := 3; + var f: (int) ~> int := (y: int) reads wrapper => y + wrapper.x + 4; + wrapper.x := 5; + r := f(6); +} +*/ + +/* + +Java example: + +public void myMethod() { + final String prefix = "Hello"; + int count = 0; // effectively final (not modified after initialization) + + class LocalGreeter { + void greet(String name) { + System.out.println(prefix + " " + name); // OK: accesses local variable + // count++; // ERROR: would need to be effectively final + } + } + + LocalGreeter greeter = new LocalGreeter(); + greeter.greet("World"); +} +*/ + +/* +C# example: + +public Func CreateCounter() { + int count = 0; // local variable + return () => count++; // lambda captures 'count' +} + +// Usage: +var counter1 = CreateCounter(); +Console.WriteLine(counter1()); // 0 +Console.WriteLine(counter1()); // 1 +Console.WriteLine(counter1()); // 2 + +var counter2 = CreateCounter(); // Independent copy +Console.WriteLine(counter2()); // 0 +*/ + +/* +What Dafny does: +- The closure refers to variables with their values at the point where the closure is defined. +- The body is transparant. +- The heap is an implicit argument to the closure, so it can change. + +I think all of the above is good, and we can use it for all three cases. +In the Java example, we can create a separate closure for each method of the type closure. + +In the C# example, preprocessing should create a separate class that holds the on-heap variable, +so in affect there no longer are any variables captured by a closure. + +*/ + +// Option A: first class procedures +procedure hasClosure() returns (r: int) + ensures r == 7 +{ + var x = 3; + var aClosure: procedure() returns (r: int) := closure { + r = x + 4; + } + x = 100; + aClosure(); +} + + +// Option B: type closures +composite ATrait { + procedure foo() returns (r: int) ensures r > 0 { + abstract + } +} + +procedure hasClosure() returns (r: int) + ensures r == 7 +{ + var x = 3; + var aClosure := closure extends ATrait { + procedure foo() returns (r: int) + { + r = x + 4; + } + } + x = 100; + aClosure.foo(); +} diff --git a/Strata/Languages/Laurel/Examples/PureAllocation.lr.st b/Strata/Languages/Laurel/Examples/PureAllocation.lr.st deleted file mode 100644 index 9d493312ce..0000000000 --- a/Strata/Languages/Laurel/Examples/PureAllocation.lr.st +++ /dev/null @@ -1,26 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ --- WIP. needs further design -composite Immutable { - val x: int - - val construct = function(): pure Immutable - constructor - requires constructing = {this} - ensures constructing == {} - { - this.x = 3; - construct this; - this - } -} - -val pureCompositeAllocator = function(): boolean { - var i: pure Empty = Immutable.construct(); -- can be called in a pure construct, because it is a function - var j: pure Empty = Immutable.construct(); - i =&= j --- ^^^ reference equality operator '=&=' can not be used on pure types -} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/ReadsAndModifiesClauses.lr.st b/Strata/Languages/Laurel/Examples/ReadsAndModifiesClauses.lr.st deleted file mode 100644 index 338153d627..0000000000 --- a/Strata/Languages/Laurel/Examples/ReadsAndModifiesClauses.lr.st +++ /dev/null @@ -1,59 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ -composite Container { - var value: int -} - -val permissionLessReader = function(c: Container): int - { c.value } --- ^^^^^^^ error: enclosing function 'permissionLessReader' does not have permission to read 'c.value' - -val varReader = function(c: Container): int - reads c - { c.value } - -composite ImmutableContainer { - val value: int -} - -val valReader = function(c: ImmutableContainer): int - { c.value } -- no reads clause needed because value is immutable - -val opaqueFunction = function(c: Container): int - reads c - ensures true - { 3 } - -val foo = procedure(c: Container, d: Container) -{ - var x = opaqueFunction(c); - modifyContainer(d); - var y = opaqueFunction(c); - assert x == y; -- functions return the same result when the arguments and read objects are the same - modifyContainer(c); - c.value = c.value + 1; - var z = opaqueFunction(c); - assert x == z; --- ^^ error: could not prove assert -} - -val modifyContainer(c: Container) - modifies c -{ - c.value = c.value + 1; -} - -val modifyContainerWithoutPermission(c: Container) -{ - c.value = c.value + 1; --- ^ error: enclosing function 'modifyContainerWithoutPermission' does not have permission to modify 'c.value' -} - --- Pure types -val impureTypeUser = function(i: pure Container, j: pure Container): boolean { - i =&= j --- ^^^ reference equality operator '=&=' can not be used on pure types -} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/StmtExpr.lr.st b/Strata/Languages/Laurel/Examples/StmtExpr.lr.st deleted file mode 100644 index d34dd24aa0..0000000000 --- a/Strata/Languages/Laurel/Examples/StmtExpr.lr.st +++ /dev/null @@ -1,37 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ -function nesting(a: int): int - requires a > 0 && a < 100 - returns -{ - var b = a + 2; - if (b > 2) { - var c = b + 3; - if (c > 3) { - return c + 4; - } - var d = c + 5; - return d + 6; - } - var e = b + 1; - e -} - -composite Counter { - var value: int -} - -int nestedImpureCalls(counter: Counter) { - if (add(counter, 1) == 1) { - var x = add(counter, add(counter, 2)); - return x; - } - return add(counter, 3); -} - -method add(counter: Counter, amount: int): int { - counter.value = counter.value + amount -} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Laurel.lean b/Strata/Languages/Laurel/Laurel.lean index 8aaefe9caa..a301f96f7e 100644 --- a/Strata/Languages/Laurel/Laurel.lean +++ b/Strata/Languages/Laurel/Laurel.lean @@ -19,17 +19,16 @@ Features currently not present: Design choices: - Pure contracts: contracts may only contain pure code. Pure code does not modify the heap, neither by modifying existing objects are creating new ones. -- Callables: instead of functions and methods we have a single more general concept called a 'callable'. -- Purity: Callables can be marked as pure or impure. Pure callables have a reads clause while impure ones have a modifies clause. - A reads clause is currently not useful for impure callables, since reads clauses are used to determine when the output changes, but impure callables can be non-determinismic so the output can always change. -- Opacity: callables can have a body that's transparant or opaque. Only an opaque body may declare a postcondition. A transparant callable must be pure. +- Procedures: instead of functions and methods we have a single more general concept called a 'procedure'. +- Determinism: procedures can be marked as deterministic or not. For deterministic procedures with a non-empty reads clause, we can assume the result is unchanged if the read references are the same. +- Opacity: procedures can have a body that's transparant or opaque. Only an opaque body may declare a postcondition. - StmtExpr: Statements and expressions are part of the same type. This reduces duplication since the same concepts are needed in both, such as conditions and variable declarations. - Loops: The only loop is a while, but this can be used to compile do-while and for loops to as well. - Jumps: Instead of break and continue statements, there is a labelled block that can be exited from using an exit statement inside of it. This can be used to model break statements and continue statements for both while and for loops. - User defined types consist of two categories: composite types and constrained types. -- Composite types have fields and callables, and may extend other composite types. +- Composite types have fields and procedures, and may extend other composite types. - Fields state whether they are mutable, which impacts what permissions are needed to access them - Fields state their type, which is needed to know the resulting type when reading a field. - Constrained types are defined by a base type and a constraint over that type. @@ -44,13 +43,16 @@ Design choices: abbrev Identifier := String /- Potentially this could be an Int to save resources. -/ mutual -structure Callable: Type where +structure Procedure: Type where name : Identifier inputs : List Parameter output : HighType precondition : StmtExpr decreases : StmtExpr - purity : Purity + deterministic: Bool + /- Reads clause defaults to empty for deterministic procedures, and everything for non-det ones -/ + reads : Option StmtExpr + modifies : StmtExpr body : Body structure Parameter where @@ -71,14 +73,6 @@ inductive HighType : Type where | Intersection (types : List HighType) deriving Repr -inductive Purity: Type where -/- -Since a reads clause is used to determine when the result of a call changes, -a reads clause is only useful for deterministic callables. --/ - | Pure (reads : StmtExpr) - | Impure (modifies : StmtExpr) - /- No support for something like function-by-method yet -/ inductive Body where | Transparent (body : StmtExpr) @@ -170,8 +164,8 @@ ProveBy( | ContractOf (type: ContractType) (function: StmtExpr) /- Abstract can be used as the root expr in a contract for reads/modifies/precondition/postcondition. For example: `reads(abstract)` -It can only be used for instance callables and it makes the containing type abstract, meaning it can not be instantiated. -An extending type can become concrete by redefining any callables that had abstracts contracts and providing non-abstract contracts. +It can only be used for instance procedures and it makes the containing type abstract, meaning it can not be instantiated. +An extending type can become concrete by redefining all procedures that had abstract contracts and providing non-abstract contracts. -/ | Abstract | All -- All refers to all objects in the heap. Can be used in a reads or modifies clause @@ -210,11 +204,11 @@ structure CompositeType where name : Identifier /- The type hierarchy affects the results of IsType and AsType, - and can add checks to the postcondition of callables that extend another one + and can add checks to the postcondition of procedures that extend another one -/ extending : List Identifier fields : List Field - instanceCallables : List Callable + instanceProcedures : List Procedure structure ConstrainedType where name : Identifier @@ -240,6 +234,6 @@ inductive TypeDefinition where | Constrainted {ConstrainedType} (ty : ConstrainedType) structure Program where - staticCallables : List Callable + staticProcedures : List Procedure staticFields : List Field types : List TypeDefinition From 4aa17a2cebf49776a19ee85d55c5371cb3e44641 Mon Sep 17 00:00:00 2001 From: Joe Hendrix Date: Thu, 11 Dec 2025 12:49:50 -0800 Subject: [PATCH 36/68] Update DialectMap to include closure proof (#235) This modifies the DialectMap datatype in the DDM to ensure all added dialects include their imports. This eliminates several potential panics and API misuse errors. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/DDM/AST.lean | 150 ++++++++++++++---- Strata/DDM/Elab.lean | 11 +- Strata/DDM/Format.lean | 22 +-- Strata/DDM/Integration/Lean/HashCommands.lean | 8 +- Strata/DDM/Ion.lean | 12 +- StrataMain.lean | 16 +- 6 files changed, 167 insertions(+), 52 deletions(-) diff --git a/Strata/DDM/AST.lean b/Strata/DDM/AST.lean index 23b92e8b27..dc2a2611a0 100644 --- a/Strata/DDM/AST.lean +++ b/Strata/DDM/AST.lean @@ -8,9 +8,23 @@ import Std.Data.HashMap import Strata.DDM.Util.Array import Strata.DDM.Util.ByteArray import Strata.DDM.Util.Decimal +import Std.Data.HashMap.Lemmas set_option autoImplicit false +namespace Strata.Array + +theorem mem_iff_back_or_pop {α} (a : α) {as : Array α} (p : as.size > 0 := by get_elem_tactic) : + a ∈ as ↔ (a = as.back ∨ a ∈ as.pop) := by + simp [Array.mem_iff_getElem] + grind + +theorem of_mem_pop {α} {a : α} {as : Array α} : a ∈ as.pop → a ∈ as := by + simp [Array.mem_iff_getElem] + grind + +end Strata.Array + namespace Strata abbrev DialectName := String @@ -1160,12 +1174,18 @@ instance {α β} [BEq α] [Hashable α] [BEq β]: BEq (Std.HashMap α β) where structure DialectMap where map : Std.HashMap DialectName Dialect -deriving BEq, Inhabited + closed : ∀(d : DialectName) (p: d ∈ map), map[d].imports.all (· ∈ map) namespace DialectMap +instance : BEq DialectMap where + beq x y := x.map == y.map + instance : EmptyCollection DialectMap where - emptyCollection := .mk {} + emptyCollection := { map := {}, closed := by simp } + +instance : Inhabited DialectMap where + default := {} instance : Membership DialectName DialectMap where mem m d := d ∈ m.map @@ -1178,6 +1198,30 @@ instance : GetElem? DialectMap DialectName Dialect (fun m d => d ∈ m) where getElem? m d := m.map[d]? getElem! m d := m.map[d]! +/-- +This inserts a new dialect into the dialect map. + +This requires propositions to ensure we do not change the semantics +of dialects and imports are already in dialect. +-/ +def insert (m : DialectMap) (d : Dialect) (_d_new : d.name ∉ m) (d_imports_ok : d.imports.all (· ∈ m)) : DialectMap := + { map := m.map.insert d.name d + closed := by + intro name mem + if eq : d.name = name then + simp at d_imports_ok + simp [eq] + intro i lt + exact Or.inr (d_imports_ok i lt) + else + simp only [Std.HashMap.mem_insert, eq, beq_iff_eq, false_or] at mem + have cl := m.closed name mem + simp at cl + simp [Std.HashMap.getElem_insert, eq] + intro i lt + exact Or.inr (cl i lt) + } + /-- This inserts a dialect in to the dialect map. @@ -1185,16 +1229,30 @@ It panics if a dialect with the same name is already in the map or if the dialect imports a dialect not already in the map. -/ def insert! (m : DialectMap) (d : Dialect) : DialectMap := - assert! d.name ∉ m - assert! d.imports.all (· ∈ m) - { map := m.map.insert d.name d } + if d_new : d.name ∈ m then + panic! s!"{d.name} already in map." + else + if d_imports_ok : d.imports.all (· ∈ m) then + m.insert d d_new d_imports_ok + else + panic! s!"Missing import." def ofList! (l : List Dialect) : DialectMap := - let m := l.foldl (init := {}) fun m d => - assert! d.name ∉ m; - m.insert d.name d - assert! l.all fun d => d.imports.all (· ∈ m) - { map := m } + let map : Std.HashMap DialectName Dialect := + l.foldl (init := .emptyWithCapacity l.length) fun m d => + m.insert d.name d + let check := map.toArray.all fun (nm, d) => d.imports.all (· ∈ map) + if p : check then + { map := map, + closed := by + intro name name_mem + simp only [check, Array.all_eq_true_iff_forall_mem (xs := map.toArray)] at p + have mem : (name, map[name]) ∈ map.toArray := by + simp [Std.HashMap.mem_toArray_iff_getElem?_eq_some] + exact p (name, map[name]) mem + } + else + panic! "Invalid list" def toList (m : DialectMap) : List Dialect := m.map.values @@ -1216,24 +1274,60 @@ Return set of all dialects that are imported by `dialect`. This includes transitive imports. -/ -partial def importedDialects! (map : DialectMap) (dialect : DialectName) : DialectMap := aux (.ofList [(d.name, d)]) [d] - where d := - match map[dialect]? with - | none => panic! s!"Unknown dialect {dialect}" - | some d => d - aux (all : Std.HashMap DialectName Dialect) (next : List Dialect) : DialectMap := - match next with - | d :: next => - let (all, next) := d.imports.foldl (init := (all, next)) fun (all, next) i => - if i ∈ all then - (all, next) - else - let d := match map[i]? with - | none => panic! s!"Unknown dialect {i}" - | some d => d - (all.insert i d, d :: next) - aux all next - | [] => DialectMap.mk all +partial def importedDialects (dm : DialectMap) (dialect : DialectName) (p : dialect ∈ dm) : DialectMap := + aux {} #[dialect] (by simp; exact p) (by simp) + where aux (map : Std.HashMap DialectName Dialect) + (next : Array DialectName) + (nextp : ∀name, name ∈ next → name ∈ dm) + (inv : ∀name (mem : name ∈ map), map[name].imports.all (fun i => i ∈ map ∨ i ∈ next)) + : DialectMap := + if emptyP : next.isEmpty then + { map := map, + closed := by intro d mem; grind + } + else + have next_size_pos : next.size > 0 := by + simp only [Array.isEmpty_iff] at emptyP + grind + let name := next.back (h := next_size_pos) + if name_mem : name ∈ map then + aux map next.pop + (by + intro d p + exact nextp _ (Array.of_mem_pop p)) + (by + simp only [Array.all_eq_true'] + intro d d_mem e e_mem + simp only [Array.all_eq_true'] at inv + have inv2 := inv d d_mem e e_mem + simp only [Array.mem_iff_back_or_pop e next_size_pos] at inv2 + grind) + else + have name_in_dm : name ∈ dm := nextp name (by grind) + let d := dm[name] + aux (map.insert name d) (next.pop ++ d.imports) + (by + intro nm nm_mem + simp at nm_mem + match nm_mem with + | .inl nm_mem => + exact nextp _ (Array.of_mem_pop nm_mem) + | .inr nm_mem => + have inv := dm.closed name name_in_dm + simp only [Array.all_eq_true'] at inv + have inv2 := inv nm nm_mem + simp at inv2 + exact inv2) + (by + intro n n_mem + if n_eq : name = n then + simp [n_eq] + else + simp [n_eq] at n_mem + simp [n_eq, Std.HashMap.getElem_insert] + intro i lt + have mem := Array.mem_iff_back_or_pop (map[n].imports[i]) next_size_pos + grind) end DialectMap diff --git a/Strata/DDM/Elab.lean b/Strata/DDM/Elab.lean index bb517179b4..2a414aee65 100644 --- a/Strata/DDM/Elab.lean +++ b/Strata/DDM/Elab.lean @@ -12,12 +12,14 @@ import Strata.DDM.Ion open Lean ( Message + MessageData Name Syntax SyntaxNodeKind TSyntax TSyntaxArray MacroM + mkEmptyEnvironment mkStringMessage quote nullKind ) @@ -26,7 +28,6 @@ open Strata.Parser (DeclParser InputContext ParsingContext ParserState) namespace Strata -open Lean namespace Elab @@ -99,6 +100,7 @@ def elabProgramRest (inputContext : InputContext) (loc : SourceRange) (dialect : DialectName) + (known : dialect ∈ loader.dialects) (startPos : String.Pos) (stopPos : String.Pos := inputContext.endPos) : Except (Array Message) Program := do @@ -110,7 +112,7 @@ def elabProgramRest let ctx : DeclContext := { inputContext, stopPos, loader := loader, missingImport := false } let (cmds, s) := runCommand leanEnv #[] stopPos ctx s if s.errors.isEmpty then - let openDialects := loader.dialects.importedDialects! dialect + let openDialects := loader.dialects.importedDialects dialect known .ok <| .create openDialects dialect cmds else .error s.errors @@ -131,7 +133,10 @@ partial def elabProgram | .dialect loc _ => .error #[Lean.mkStringMessage inputContext loc.start "Expected program name"] | .program loc dialect => do - elabProgramRest loader leanEnv inputContext loc dialect startPos stopPos + if p : dialect ∈ loader.dialects then + elabProgramRest loader leanEnv inputContext loc dialect p startPos stopPos + else + .error #[Lean.mkStringMessage inputContext loc.start s!"Unknown dialect {dialect}."] private def asText{m} [Monad m] [MonadExcept String m] (path : System.FilePath) (bytes : ByteArray) : m String := match String.fromUTF8? bytes with diff --git a/Strata/DDM/Format.lean b/Strata/DDM/Format.lean index 5652ad5a53..c8f8451294 100644 --- a/Strata/DDM/Format.lean +++ b/Strata/DDM/Format.lean @@ -563,14 +563,17 @@ instance Decl.instToStrataFormat : ToStrataFormat Decl where | .function d => mformat d | .metadata d => mformat d -namespace Dialect +namespace DialectMap -protected def format (dialects : DialectMap) (d : Dialect) (opts : FormatOptions := {}) : Format := - assert! d.name ∈ dialects +/-- +Pretty print the dialect with the given name in the map. +-/ +protected def format (dialects : DialectMap) (name : DialectName) (mem : name ∈ dialects) (opts : FormatOptions := {}) : Format := + let d := dialects[name] let c := FormatContext.ofDialects dialects {} opts - let imports := dialects.importedDialects! d.name + let imports := dialects.importedDialects name mem let s : FormatState := { openDialects := imports.map.fold (init := {}) fun s n _ => s.insert n } - let f := f!"dialect {d.name};\n" + let f := f!"dialect {name};\n" let f := d.imports.foldl (init := f) fun f i => if i = "Init" then f @@ -578,7 +581,7 @@ protected def format (dialects : DialectMap) (d : Dialect) (opts : FormatOptions f!"{f}import {i}\n" d.declarations.foldl (init := f) fun f d => f ++ (mformat d c s).format -end Dialect +end DialectMap namespace Program @@ -598,9 +601,10 @@ instance : ToString Program where toString p := p.format |>.render protected def ppDialect! (p : Program) (name : DialectName := p.dialect) (opts : FormatOptions := {}) : Format := - match p.dialects[name]? with - | some d => d.format p.dialects opts - | none => panic! s!"Unknown dialect {name}" + if mem : name ∈ p.dialects then + p.dialects.format name mem opts + else + panic! s!"Unknown dialect {name}" end Program diff --git a/Strata/DDM/Integration/Lean/HashCommands.lean b/Strata/DDM/Integration/Lean/HashCommands.lean index 823a030e2e..49d6fa4600 100644 --- a/Strata/DDM/Integration/Lean/HashCommands.lean +++ b/Strata/DDM/Integration/Lean/HashCommands.lean @@ -10,7 +10,7 @@ import Strata.DDM.TaggedRegions open Lean open Lean.Elab (throwUnsupportedSyntax) -open Lean.Elab.Command (CommandElab CommandElabM) +open Lean.Elab.Command (CommandElab CommandElabM liftCoreM) open Lean.Elab.Term (TermElab) open Lean.Parser (InputContext) open System (FilePath) @@ -59,8 +59,6 @@ private def mkAbsIdent (name : Lean.Name) : Ident := let nameStr := toString name .mk (.ident .none nameStr.toSubstring name [.decl name []]) -open Lean.Elab.Command (liftCoreM) - /-- Add a definition to environment and compile it. -/ @@ -98,7 +96,9 @@ def declareDialect (d : Dialect) : CommandElabM Unit := do dialectExt.modifyState env (·.addDialect! d dialectAbsName (isNew := true)) -- Create term to represent minimal DialectMap with dialect. let s := (dialectExt.getState (←Lean.getEnv)) - let openDialects := s.loaded.dialects.importedDialects! d.name |>.toList + let .isTrue mem := inferInstanceAs (Decidable (d.name ∈ s.loaded.dialects)) + | throwError "Internal error with unknown dialect" + let openDialects := s.loaded.dialects.importedDialects d.name mem |>.toList let exprD (d : Dialect) : CommandElabM Lean.Expr := do let some name := s.nameMap[d.name]? | throwError s!"Unknown dialect {d.name}" diff --git a/Strata/DDM/Ion.lean b/Strata/DDM/Ion.lean index 67e9ff1d68..74c839daf0 100644 --- a/Strata/DDM/Ion.lean +++ b/Strata/DDM/Ion.lean @@ -1289,14 +1289,18 @@ instance : CachedToIon Program where #declareIonSymbolTable Program -def fromIonFragment (f : Ion.Fragment) (dialects : DialectMap) (dialect : DialectName) : Except String Program := do +def fromIonFragmentCommands (f : Ion.Fragment) : Except String (Array Operation) := do let ctx : FromIonContext := ⟨f.symbols⟩ - let commands ← f.values.foldlM (init := #[]) (start := f.offset) fun cmds u => do + f.values.foldlM (init := #[]) (start := f.offset) fun cmds u => do cmds.push <$> OperationF.fromIon u ctx + +def fromIonFragment (f : Ion.Fragment) + (dialects : DialectMap) + (dialect : DialectName) : Except String Program := return { - dialects := dialects.importedDialects! dialect + dialects := dialects dialect := dialect - commands := commands + commands := ← fromIonFragmentCommands f } def fromIon (dialects : DialectMap) (dialect : DialectName) (bytes : ByteArray) : Except String Strata.Program := do diff --git a/StrataMain.lean b/StrataMain.lean index 3a8bda76d1..54d994a3e3 100644 --- a/StrataMain.lean +++ b/StrataMain.lean @@ -54,9 +54,11 @@ def readStrataText (fm : Strata.DialectFileMap) (input : System.FilePath) (bytes match ← Strata.Elab.loadDialect fm .builtin dialect with | (dialects, .ok _) => pure dialects | (_, .error msg) => exitFailure msg - match Strata.Elab.elabProgramRest dialects leanEnv inputContext stx dialect startPos with + let .isTrue mem := inferInstanceAs (Decidable (dialect ∈ dialects.dialects)) + | panic! "loadDialect failed" + match Strata.Elab.elabProgramRest dialects leanEnv inputContext stx dialect mem startPos with | .ok program => pure (dialects, .program program) - | .error errors => exitFailure (← Strata.mkErrorReport input errors) + | .error errors => exitFailure (← Strata.mkErrorReport input errors) | .dialect stx dialect => let (loaded, d, s) ← Strata.Elab.elabDialectRest fm .builtin #[] inputContext stx dialect startPos @@ -89,7 +91,10 @@ def readStrataIon (fm : Strata.DialectFileMap) (path : System.FilePath) (bytes : match ← Strata.Elab.loadDialect fm .builtin dialect with | (loaded, .ok _) => pure loaded | (_, .error msg) => exitFailure msg - match Strata.Program.fromIonFragment frag dialects.dialects dialect with + let .isTrue mem := inferInstanceAs (Decidable (dialect ∈ dialects.dialects)) + | panic! "loadDialect failed" + let dm := dialects.dialects.importedDialects dialect mem + match Strata.Program.fromIonFragment frag dm dialect with | .ok pgm => pure (dialects, .program pgm) | .error msg => @@ -137,7 +142,10 @@ def printCommand : Command where let (ld, pd) ← readFile searchPath v[0] match pd with | .dialect d => - IO.print <| d.format ld.dialects + let .isTrue mem := inferInstanceAs (Decidable (d.name ∈ ld.dialects)) + | IO.eprintln s!"Internal error reading file." + return + IO.print <| ld.dialects.format d.name mem | .program pgm => IO.print <| toString pgm From fbe4de5f6275878266da8120b964bf43a359ca3a Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Mon, 15 Dec 2025 11:42:47 +0100 Subject: [PATCH 37/68] Move back Boogie examples --- .../Languages/Boogie/Examples/AdvancedMaps.lean | 0 .../Languages/Boogie/Examples/AdvancedQuantifiers.lean | 0 .../Languages/Boogie/Examples/AssertionDefaultNames.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Axioms.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/BitVecParse.lean | 0 .../Languages/Boogie/Examples/DDMAxiomsExtraction.lean | 0 .../Languages/Boogie/Examples/DDMTransform.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Examples.lean | 0 .../Languages/Boogie/Examples/FailingAssertion.lean | 0 .../Languages/Boogie/Examples/FreeRequireEnsure.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Functions.lean | 0 .../Languages/Boogie/Examples/GeneratedLabels.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Goto.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Havoc.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Loops.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Map.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Min.lean | 0 .../Languages/Boogie/Examples/OldExpressions.lean | 0 .../Languages/Boogie/Examples/PrecedenceCheck.lean | 0 .../Languages/Boogie/Examples/ProcedureCall.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Quantifiers.lean | 0 .../Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean | 0 .../Languages/Boogie/Examples/RealBitVector.lean | 0 .../Languages/Boogie/Examples/RecursiveProcIte.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/Regex.lean | 0 .../Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/SimpleProc.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/String.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/TypeAlias.lean | 0 {StrataTest => Strata}/Languages/Boogie/Examples/TypeDecl.lean | 0 .../Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean | 0 .../Languages/Boogie/Examples/UnreachableAssert.lean | 0 32 files changed, 0 insertions(+), 0 deletions(-) rename {StrataTest => Strata}/Languages/Boogie/Examples/AdvancedMaps.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/AdvancedQuantifiers.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/AssertionDefaultNames.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Axioms.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/BitVecParse.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/DDMAxiomsExtraction.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/DDMTransform.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Examples.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/FailingAssertion.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/FreeRequireEnsure.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Functions.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/GeneratedLabels.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Goto.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Havoc.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Loops.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Map.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Min.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/OldExpressions.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/PrecedenceCheck.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/ProcedureCall.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Quantifiers.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/RealBitVector.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/RecursiveProcIte.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/Regex.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/SimpleProc.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/String.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/TypeAlias.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/TypeDecl.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean (100%) rename {StrataTest => Strata}/Languages/Boogie/Examples/UnreachableAssert.lean (100%) diff --git a/StrataTest/Languages/Boogie/Examples/AdvancedMaps.lean b/Strata/Languages/Boogie/Examples/AdvancedMaps.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/AdvancedMaps.lean rename to Strata/Languages/Boogie/Examples/AdvancedMaps.lean diff --git a/StrataTest/Languages/Boogie/Examples/AdvancedQuantifiers.lean b/Strata/Languages/Boogie/Examples/AdvancedQuantifiers.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/AdvancedQuantifiers.lean rename to Strata/Languages/Boogie/Examples/AdvancedQuantifiers.lean diff --git a/StrataTest/Languages/Boogie/Examples/AssertionDefaultNames.lean b/Strata/Languages/Boogie/Examples/AssertionDefaultNames.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/AssertionDefaultNames.lean rename to Strata/Languages/Boogie/Examples/AssertionDefaultNames.lean diff --git a/StrataTest/Languages/Boogie/Examples/Axioms.lean b/Strata/Languages/Boogie/Examples/Axioms.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Axioms.lean rename to Strata/Languages/Boogie/Examples/Axioms.lean diff --git a/StrataTest/Languages/Boogie/Examples/BitVecParse.lean b/Strata/Languages/Boogie/Examples/BitVecParse.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/BitVecParse.lean rename to Strata/Languages/Boogie/Examples/BitVecParse.lean diff --git a/StrataTest/Languages/Boogie/Examples/DDMAxiomsExtraction.lean b/Strata/Languages/Boogie/Examples/DDMAxiomsExtraction.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/DDMAxiomsExtraction.lean rename to Strata/Languages/Boogie/Examples/DDMAxiomsExtraction.lean diff --git a/StrataTest/Languages/Boogie/Examples/DDMTransform.lean b/Strata/Languages/Boogie/Examples/DDMTransform.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/DDMTransform.lean rename to Strata/Languages/Boogie/Examples/DDMTransform.lean diff --git a/StrataTest/Languages/Boogie/Examples/Examples.lean b/Strata/Languages/Boogie/Examples/Examples.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Examples.lean rename to Strata/Languages/Boogie/Examples/Examples.lean diff --git a/StrataTest/Languages/Boogie/Examples/FailingAssertion.lean b/Strata/Languages/Boogie/Examples/FailingAssertion.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/FailingAssertion.lean rename to Strata/Languages/Boogie/Examples/FailingAssertion.lean diff --git a/StrataTest/Languages/Boogie/Examples/FreeRequireEnsure.lean b/Strata/Languages/Boogie/Examples/FreeRequireEnsure.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/FreeRequireEnsure.lean rename to Strata/Languages/Boogie/Examples/FreeRequireEnsure.lean diff --git a/StrataTest/Languages/Boogie/Examples/Functions.lean b/Strata/Languages/Boogie/Examples/Functions.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Functions.lean rename to Strata/Languages/Boogie/Examples/Functions.lean diff --git a/StrataTest/Languages/Boogie/Examples/GeneratedLabels.lean b/Strata/Languages/Boogie/Examples/GeneratedLabels.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/GeneratedLabels.lean rename to Strata/Languages/Boogie/Examples/GeneratedLabels.lean diff --git a/StrataTest/Languages/Boogie/Examples/Goto.lean b/Strata/Languages/Boogie/Examples/Goto.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Goto.lean rename to Strata/Languages/Boogie/Examples/Goto.lean diff --git a/StrataTest/Languages/Boogie/Examples/Havoc.lean b/Strata/Languages/Boogie/Examples/Havoc.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Havoc.lean rename to Strata/Languages/Boogie/Examples/Havoc.lean diff --git a/StrataTest/Languages/Boogie/Examples/Loops.lean b/Strata/Languages/Boogie/Examples/Loops.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Loops.lean rename to Strata/Languages/Boogie/Examples/Loops.lean diff --git a/StrataTest/Languages/Boogie/Examples/Map.lean b/Strata/Languages/Boogie/Examples/Map.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Map.lean rename to Strata/Languages/Boogie/Examples/Map.lean diff --git a/StrataTest/Languages/Boogie/Examples/Min.lean b/Strata/Languages/Boogie/Examples/Min.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Min.lean rename to Strata/Languages/Boogie/Examples/Min.lean diff --git a/StrataTest/Languages/Boogie/Examples/OldExpressions.lean b/Strata/Languages/Boogie/Examples/OldExpressions.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/OldExpressions.lean rename to Strata/Languages/Boogie/Examples/OldExpressions.lean diff --git a/StrataTest/Languages/Boogie/Examples/PrecedenceCheck.lean b/Strata/Languages/Boogie/Examples/PrecedenceCheck.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/PrecedenceCheck.lean rename to Strata/Languages/Boogie/Examples/PrecedenceCheck.lean diff --git a/StrataTest/Languages/Boogie/Examples/ProcedureCall.lean b/Strata/Languages/Boogie/Examples/ProcedureCall.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/ProcedureCall.lean rename to Strata/Languages/Boogie/Examples/ProcedureCall.lean diff --git a/StrataTest/Languages/Boogie/Examples/Quantifiers.lean b/Strata/Languages/Boogie/Examples/Quantifiers.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Quantifiers.lean rename to Strata/Languages/Boogie/Examples/Quantifiers.lean diff --git a/StrataTest/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean b/Strata/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean rename to Strata/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean diff --git a/StrataTest/Languages/Boogie/Examples/RealBitVector.lean b/Strata/Languages/Boogie/Examples/RealBitVector.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/RealBitVector.lean rename to Strata/Languages/Boogie/Examples/RealBitVector.lean diff --git a/StrataTest/Languages/Boogie/Examples/RecursiveProcIte.lean b/Strata/Languages/Boogie/Examples/RecursiveProcIte.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/RecursiveProcIte.lean rename to Strata/Languages/Boogie/Examples/RecursiveProcIte.lean diff --git a/StrataTest/Languages/Boogie/Examples/Regex.lean b/Strata/Languages/Boogie/Examples/Regex.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/Regex.lean rename to Strata/Languages/Boogie/Examples/Regex.lean diff --git a/StrataTest/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean b/Strata/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean rename to Strata/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean diff --git a/StrataTest/Languages/Boogie/Examples/SimpleProc.lean b/Strata/Languages/Boogie/Examples/SimpleProc.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/SimpleProc.lean rename to Strata/Languages/Boogie/Examples/SimpleProc.lean diff --git a/StrataTest/Languages/Boogie/Examples/String.lean b/Strata/Languages/Boogie/Examples/String.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/String.lean rename to Strata/Languages/Boogie/Examples/String.lean diff --git a/StrataTest/Languages/Boogie/Examples/TypeAlias.lean b/Strata/Languages/Boogie/Examples/TypeAlias.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/TypeAlias.lean rename to Strata/Languages/Boogie/Examples/TypeAlias.lean diff --git a/StrataTest/Languages/Boogie/Examples/TypeDecl.lean b/Strata/Languages/Boogie/Examples/TypeDecl.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/TypeDecl.lean rename to Strata/Languages/Boogie/Examples/TypeDecl.lean diff --git a/StrataTest/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean b/Strata/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean rename to Strata/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean diff --git a/StrataTest/Languages/Boogie/Examples/UnreachableAssert.lean b/Strata/Languages/Boogie/Examples/UnreachableAssert.lean similarity index 100% rename from StrataTest/Languages/Boogie/Examples/UnreachableAssert.lean rename to Strata/Languages/Boogie/Examples/UnreachableAssert.lean From e827d76e2a4e48cddd21ad4fe098b1a4f8ac48a4 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Mon, 15 Dec 2025 11:44:34 +0100 Subject: [PATCH 38/68] Remove white line --- Strata/DDM/Parser.lean | 1 - 1 file changed, 1 deletion(-) diff --git a/Strata/DDM/Parser.lean b/Strata/DDM/Parser.lean index 9885d9d16a..dff434d6ce 100644 --- a/Strata/DDM/Parser.lean +++ b/Strata/DDM/Parser.lean @@ -921,5 +921,4 @@ def runCatParser (tokenTable : TokenTable) let p := dynamicParser cat p.fn.run inputContext pmc tokenTable leanParserState - end Strata.Parser From 79fbeb9e28f46f024856b3091ce6a72f472d2b2f Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Mon, 15 Dec 2025 12:44:06 +0100 Subject: [PATCH 39/68] Remove duplication --- .../Examples/Fundamentals/1. AssertFalse.lr.st | 15 --------------- .../1.AssertFalse.lr.st} | 0 StrataTest/Languages/Laurel/TestExamples.lean | 2 +- 3 files changed, 1 insertion(+), 16 deletions(-) delete mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st rename Strata/Languages/Laurel/Examples/{AssertFalse.lr.st => Fundamentals/1.AssertFalse.lr.st} (100%) diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st deleted file mode 100644 index e09e7daefe..0000000000 --- a/Strata/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st +++ /dev/null @@ -1,15 +0,0 @@ -/* - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT -*/ -procedure foo() { - assert true; // pass - assert false; // error - assert false; // TODO: decide if this has an error -} - -procedure bar() { - assume false; // pass - assert true; // pass -} \ No newline at end of file diff --git a/Strata/Languages/Laurel/Examples/AssertFalse.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st similarity index 100% rename from Strata/Languages/Laurel/Examples/AssertFalse.lr.st rename to Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st diff --git a/StrataTest/Languages/Laurel/TestExamples.lean b/StrataTest/Languages/Laurel/TestExamples.lean index 328ce8d221..268da409b4 100644 --- a/StrataTest/Languages/Laurel/TestExamples.lean +++ b/StrataTest/Languages/Laurel/TestExamples.lean @@ -34,7 +34,7 @@ def processLaurelFile (filePath : String) : IO (Array Diagnostic) := do pure diagnostics def testAssertFalse : IO Unit := do - testFile processLaurelFile "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" + testFile processLaurelFile "Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st" #eval! testAssertFalse From 0ea1bbb2b903443d62768cf213036a1c948a3603 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Mon, 15 Dec 2025 14:19:34 +0100 Subject: [PATCH 40/68] Fix test --- StrataTest/Languages/Laurel/Grammar/TestGrammar.lean | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean index 96777c83c4..83e8e7c69a 100644 --- a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean +++ b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean @@ -16,7 +16,7 @@ namespace Laurel def testAssertFalse : IO Unit := do let laurelDialect: Strata.Dialect := Laurel - let filePath := "Strata/Languages/Laurel/Examples/AssertFalse.lr.st" + let filePath := "Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st" let result ← testGrammarFile laurelDialect filePath if !result.normalizedMatch then From 3160a8c77e1dde51a916805a19c8c45c8c34dc3c Mon Sep 17 00:00:00 2001 From: Joe Hendrix Date: Mon, 15 Dec 2025 11:06:04 -0800 Subject: [PATCH 41/68] Bump lean-toolchain to v4.25.2 (#273) By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/DDM/AST.lean | 4 +- Strata/DDM/Elab.lean | 24 ++-- Strata/DDM/Elab/DeclM.lean | 8 +- Strata/DDM/Elab/DialectM.lean | 2 +- Strata/DDM/Integration/Lean/ToExpr.lean | 6 +- Strata/DDM/Ion.lean | 4 +- Strata/DDM/Parser.lean | 36 +++--- Strata/DDM/TaggedRegions.lean | 4 +- Strata/DDM/Util/ByteArray.lean | 88 +++++++++---- Strata/DDM/Util/Ion/Lean.lean | 2 +- Strata/DDM/Util/Lean.lean | 4 +- Strata/DDM/Util/String.lean | 102 +++++---------- Strata/DL/Lambda/LExprEval.lean | 12 +- Strata/DL/SMT/Encoder.lean | 2 +- Strata/DL/SMT/Op.lean | 8 +- Strata/DL/Util/StringGen.lean | 112 ++++++---------- Strata/Languages/Boogie/Verifier.lean | 2 +- Strata/Languages/Python/Regex/ReParser.lean | 134 ++++++++++---------- Strata/Transform/CallElimCorrect.lean | 22 ++-- lakefile.toml | 3 + lean-toolchain | 2 +- 21 files changed, 278 insertions(+), 303 deletions(-) diff --git a/Strata/DDM/AST.lean b/Strata/DDM/AST.lean index dc2a2611a0..42d5da6c37 100644 --- a/Strata/DDM/AST.lean +++ b/Strata/DDM/AST.lean @@ -317,9 +317,9 @@ As an example, in the string `"123abc\ndef"`, the string -/ structure SourceRange where /-- The starting offset of the source range. -/ - start : String.Pos + start : String.Pos.Raw /-- One past the end of the range. -/ - stop : String.Pos + stop : String.Pos.Raw deriving BEq, Inhabited, Repr namespace SourceRange diff --git a/Strata/DDM/Elab.lean b/Strata/DDM/Elab.lean index 2a414aee65..511cc8a86c 100644 --- a/Strata/DDM/Elab.lean +++ b/Strata/DDM/Elab.lean @@ -57,9 +57,9 @@ deriving Inhabited partial def elabHeader (leanEnv : Lean.Environment) (inputContext : InputContext) - (startPos : String.Pos := 0) - (stopPos : String.Pos := inputContext.endPos) - : Header × Array Message × String.Pos := + (startPos : String.Pos.Raw := 0) + (stopPos : String.Pos.Raw := inputContext.endPos) + : Header × Array Message × String.Pos.Raw := let s : DeclState := .initDeclState let s := s.openLoadedDialect! .builtin headerDialect let s := { s with pos := startPos } @@ -81,7 +81,7 @@ partial def elabHeader else (default, s.errors, 0) -partial def runCommand (leanEnv : Lean.Environment) (commands : Array Operation) (stopPos : String.Pos) : DeclM (Array Operation) := do +partial def runCommand (leanEnv : Lean.Environment) (commands : Array Operation) (stopPos : String.Pos.Raw) : DeclM (Array Operation) := do let iniPos := (←get).pos if iniPos >= stopPos then return commands @@ -101,8 +101,8 @@ def elabProgramRest (loc : SourceRange) (dialect : DialectName) (known : dialect ∈ loader.dialects) - (startPos : String.Pos) - (stopPos : String.Pos := inputContext.endPos) + (startPos : String.Pos.Raw) + (stopPos : String.Pos.Raw := inputContext.endPos) : Except (Array Message) Program := do let some d := loader.dialects[dialect]? | .error #[Lean.mkStringMessage inputContext loc.start s!"Unknown dialect {dialect}."] @@ -122,8 +122,8 @@ partial def elabProgram (loader : LoadedDialects) (leanEnv : Lean.Environment) (inputContext : InputContext) - (startPos : String.Pos := 0) - (stopPos : String.Pos := inputContext.endPos) : Except (Array Message) Program := + (startPos : String.Pos.Raw := 0) + (stopPos : String.Pos.Raw := inputContext.endPos) : Except (Array Message) Program := assert! "Init" ∈ loader.dialects let (header, errors, startPos) := elabHeader leanEnv inputContext startPos stopPos if errors.size > 0 then @@ -321,8 +321,8 @@ partial def elabDialectRest (inputContext : Parser.InputContext) (loc : SourceRange) (dialect : DialectName) - (startPos : String.Pos := 0) - (stopPos : String.Pos := inputContext.endPos) + (startPos : String.Pos.Raw := 0) + (stopPos : String.Pos.Raw := inputContext.endPos) : BaseIO (LoadedDialects × Dialect × DeclState) := do let leanEnv ← match ← mkEmptyEnvironment 0 |>.toBaseIO with @@ -393,8 +393,8 @@ def elabDialect (fm : DialectFileMap) (dialects : LoadedDialects) (inputContext : Parser.InputContext) - (startPos : String.Pos := 0) - (stopPos : String.Pos := inputContext.endPos) + (startPos : String.Pos.Raw := 0) + (stopPos : String.Pos.Raw := inputContext.endPos) : BaseIO (LoadedDialects × Dialect × DeclState) := do let leanEnv ← match ← mkEmptyEnvironment 0 |>.toBaseIO with diff --git a/Strata/DDM/Elab/DeclM.lean b/Strata/DDM/Elab/DeclM.lean index 5422436b8d..6d29c3b4d8 100644 --- a/Strata/DDM/Elab/DeclM.lean +++ b/Strata/DDM/Elab/DeclM.lean @@ -23,7 +23,7 @@ def infoSourceRange (info : Lean.SourceInfo) : Option SourceRange := some { start := pos, stop := endPos } | .none => none -def sourceLocPos (stx:Syntax) : Option String.Pos := +def sourceLocPos (stx:Syntax) : Option String.Pos.Raw := match stx with | .atom info .. | .ident info .. => infoSourceRange info |>.map (·.start) @@ -38,7 +38,7 @@ def sourceLocPos (stx:Syntax) : Option String.Pos := none | .missing => none -def sourceLocEnd (stx:Syntax) : Option String.Pos := +def sourceLocEnd (stx:Syntax) : Option String.Pos.Raw := match stx with | .atom info .. | .ident info .. => infoSourceRange info |>.map (·.stop) @@ -140,7 +140,7 @@ def logErrorMF {m} [ElabClass m] (loc : SourceRange) (msg : StrataFormat) (isSil structure DeclContext where inputContext : InputContext - stopPos : String.Pos + stopPos : String.Pos.Raw -- Map from dialect names to the dialect definition loader : LoadedDialects /-- Flag indicating imports are missing (silences some errors). -/ @@ -255,7 +255,7 @@ structure DeclState where -- Operations at the global level globalContext : GlobalContext := {} -- String position in file. - pos : String.Pos := 0 + pos : String.Pos.Raw := 0 -- Errors found in elaboration. errors : Array Message := #[] deriving Inhabited diff --git a/Strata/DDM/Elab/DialectM.lean b/Strata/DDM/Elab/DialectM.lean index 324c36c6e6..1ff769377e 100644 --- a/Strata/DDM/Elab/DialectM.lean +++ b/Strata/DDM/Elab/DialectM.lean @@ -513,7 +513,7 @@ structure DialectContext where /-- Callback to load dialects dynamically upon demand. -/ loadDialect : LoadDialectCallback inputContext : Parser.InputContext - stopPos : String.Pos + stopPos : String.Pos.Raw structure DialectState where loaded : LoadedDialects diff --git a/Strata/DDM/Integration/Lean/ToExpr.lean b/Strata/DDM/Integration/Lean/ToExpr.lean index 9120654da3..28a5f46959 100644 --- a/Strata/DDM/Integration/Lean/ToExpr.lean +++ b/Strata/DDM/Integration/Lean/ToExpr.lean @@ -185,9 +185,9 @@ instance OperationF.instToExpr {α} [ToExpr α] : ToExpr (OperationF α) where toTypeExpr := OperationF.typeExpr (toTypeExpr α) toExpr := OperationF.toExpr -instance : ToExpr String.Pos where - toTypeExpr := mkConst ``String.Pos - toExpr e := mkApp (mkConst ``String.Pos.mk) (toExpr e.byteIdx) +instance : ToExpr String.Pos.Raw where + toTypeExpr := mkConst ``String.Pos.Raw + toExpr e := mkApp (mkConst ``String.Pos.Raw.mk) (toExpr e.byteIdx) instance SourceRange.instToExpr : ToExpr SourceRange where toTypeExpr := mkConst ``SourceRange diff --git a/Strata/DDM/Ion.lean b/Strata/DDM/Ion.lean index 74c839daf0..8f8c043b3a 100644 --- a/Strata/DDM/Ion.lean +++ b/Strata/DDM/Ion.lean @@ -315,9 +315,9 @@ protected def toIon (d : QualifiedIdent) : Ion.InternM (Ion SymbolId) := do def fromIonStringSymbol (fullname : String) : FromIonM QualifiedIdent := do let pos := fullname.find (·='.') if pos < fullname.endPos then - let dialect := fullname.extract 0 pos + let dialect := String.Pos.Raw.extract fullname 0 pos -- . is one byte - let name := fullname.extract (pos + '.') fullname.endPos + let name := String.Pos.Raw.extract fullname (pos + '.') fullname.endPos return { dialect, name } else throw s!"Invalid symbol {fullname}" diff --git a/Strata/DDM/Parser.lean b/Strata/DDM/Parser.lean index dff434d6ce..2d3ebc21a8 100644 --- a/Strata/DDM/Parser.lean +++ b/Strata/DDM/Parser.lean @@ -87,7 +87,7 @@ def nodeFn (n : SyntaxNodeKind) (p : ParserFn) : ParserFn := fun c s => let s := p c s s.mkNode n iniSz -private def emptySourceInfo (c : ParserContext) (pos : String.Pos) : SourceInfo := +private def emptySourceInfo (c : ParserContext) (pos : String.Pos.Raw) : SourceInfo := let empty := c.mkEmptySubstringAt pos .original empty pos empty pos @@ -125,13 +125,13 @@ def stringInputContext (fileName : System.FilePath) (contents : String) : InputC private def isIdFirstOrBeginEscape (c : Char) : Bool := isIdFirst c || isIdBeginEscape c -private def isToken (idStartPos idStopPos : String.Pos) (tk : Option Token) : Bool := +private def isToken (idStartPos idStopPos : String.Pos.Raw) (tk : Option Token) : Bool := match tk with | none => false | some tk => -- if a token is both a symbol and a valid identifier (i.e. a keyword), -- we want it to be recognized as a symbol - tk.endPos ≥ idStopPos - idStartPos + tk.endPos.byteIdx ≥ idStopPos.byteIdx - idStartPos.byteIdx /-- Create a trailing node @@ -241,7 +241,7 @@ partial def whitespace : ParserFn := fun c s => s else s -def mkIdResult (startPos : String.Pos) (val : String) : ParserFn := fun c s => +def mkIdResult (startPos : String.Pos.Raw) (val : String) : ParserFn := fun c s => let stopPos := s.pos let rawVal := c.substring startPos stopPos let s := whitespace c s @@ -253,7 +253,7 @@ def mkIdResult (startPos : String.Pos) (val : String) : ParserFn := fun c s => s.pushSyntax atom /-- Push `(Syntax.node tk )` onto syntax stack if parse was successful. -/ -def mkNodeToken (n : SyntaxNodeKind) (startPos : String.Pos) : ParserFn := fun c s => Id.run do +def mkNodeToken (n : SyntaxNodeKind) (startPos : String.Pos.Raw) : ParserFn := fun c s => Id.run do if s.hasError then return s let stopPos := s.pos @@ -265,7 +265,7 @@ def mkNodeToken (n : SyntaxNodeKind) (startPos : String.Pos) : ParserFn := fun c let info := SourceInfo.original leading startPos trailing stopPos s.pushSyntax (Syntax.mkLit n val info) -def mkTokenAndFixPos (startPos : String.Pos) (tk : Option Token) : ParserFn := fun c s => +def mkTokenAndFixPos (startPos : String.Pos.Raw) (tk : Option Token) : ParserFn := fun c s => match tk with | none => s.mkErrorAt "token" startPos | some tk => @@ -281,7 +281,7 @@ def mkTokenAndFixPos (startPos : String.Pos) (tk : Option Token) : ParserFn := f let atom := Parser.mkAtom (SourceInfo.original leading startPos trailing stopPos) tk s.pushSyntax atom -def charLitFnAux (startPos : String.Pos) : ParserFn := fun c s => +def charLitFnAux (startPos : String.Pos.Raw) : ParserFn := fun c s => let i := s.pos if h : c.atEnd i then s.mkEOIError else @@ -296,7 +296,7 @@ def charLitFnAux (startPos : String.Pos) : ParserFn := fun c s => if curr == '\'' then mkNodeToken charLitKind startPos c s else s.mkUnexpectedError "missing end of character literal" -def identFnAux (startPos : String.Pos) (tk : Option Token) : ParserFn := fun c s => +def identFnAux (startPos : String.Pos.Raw) (tk : Option Token) : ParserFn := fun c s => let i := s.pos if h : c.atEnd i then s.mkEOIError @@ -327,7 +327,7 @@ def identFnAux (startPos : String.Pos) (tk : Option Token) : ParserFn := fun c s else mkTokenAndFixPos startPos tk c s -def decimalNumberFn (startPos : String.Pos) (c : ParserContext) : ParserState → ParserState := fun s => +def decimalNumberFn (startPos : String.Pos.Raw) (c : ParserContext) : ParserState → ParserState := fun s => let s := takeDigitsFn (fun c => c.isDigit) "decimal number" false c s let i := s.pos if h : c.atEnd i then @@ -371,17 +371,17 @@ where else s -def binNumberFn (startPos : String.Pos) : ParserFn := fun c s => +def binNumberFn (startPos : String.Pos.Raw) : ParserFn := fun c s => let s := takeDigitsFn (fun c => c == '0' || c == '1') "binary number" true c s mkNodeToken numLitKind startPos c s -def octalNumberFn (startPos : String.Pos) : ParserFn := fun c s => +def octalNumberFn (startPos : String.Pos.Raw) : ParserFn := fun c s => let s := takeDigitsFn (fun c => '0' ≤ c && c ≤ '7') "octal number" true c s mkNodeToken numLitKind startPos c s def isHexDigit (c : Char) := ('0' ≤ c && c ≤ '9') || ('a' ≤ c && c ≤ 'f') || ('A' ≤ c && c ≤ 'F') -def hexNumberFn (startPos : String.Pos) : ParserFn := fun c s => +def hexNumberFn (startPos : String.Pos.Raw) : ParserFn := fun c s => let s := takeDigitsFn isHexDigit "hexadecimal number" true c s mkNodeToken numLitKind startPos c s @@ -408,17 +408,17 @@ def numberFnAux : ParserFn := fun c s => abbrev bytesLitKind : SyntaxNodeKind := `bytes -partial def parseByteContent (startPos : String.Pos) : ParserFn := fun c s => +partial def parseByteContent (startPos : String.Pos.Raw) : ParserFn := fun c s => if s.hasError then s else - match ByteArray.unescapeBytesAux c.inputString s.pos .empty with + match ByteArray.unescapeBytesRawAux c.inputString s.pos .empty with | .error (_, e, msg) => s.setPos e |>.mkError msg | .ok (_, e) => mkNodeToken bytesLitKind startPos c (s.setPos e) -partial def strLitFnAux (startPos : String.Pos) : ParserFn := fun c s => +partial def strLitFnAux (startPos : String.Pos.Raw) : ParserFn := fun c s => let i := s.pos if h : c.atEnd i then s.mkUnexpectedErrorAt "unterminated string literal" startPos else @@ -444,7 +444,7 @@ private def tokenFnAux : ParserFn := fun c s => let tk := c.tokens.matchPrefix c.inputString i identFnAux i tk c s -private def updateTokenCache (startPos : String.Pos) (s : ParserState) : ParserState := +private def updateTokenCache (startPos : String.Pos.Raw) (s : ParserState) : ParserState := -- do not cache token parsing errors, which are rare and usually fatal and thus not worth an extra field in `TokenCache` match s with | ⟨stack, lhsPrec, pos, ⟨_, catCache⟩, none, errs⟩ => @@ -575,7 +575,7 @@ def indexed {α : Type} (map : TokenMap α) (c : ParserContext) (s : ParserState def longestMatchMkResult (startSize : Nat) (s : ParserState) : ParserState := if s.stackSize > startSize + 1 then s.mkNode choiceKind startSize else s -def longestMatchFnAux (left? : Option Syntax) (startSize startLhsPrec : Nat) (startPos : String.Pos) (prevPrio : Nat) (ps : List (Parser × Nat)) : ParserFn := +def longestMatchFnAux (left? : Option Syntax) (startSize startLhsPrec : Nat) (startPos : String.Pos.Raw) (prevPrio : Nat) (ps : List (Parser × Nat)) : ParserFn := let rec parse (prevPrio : Nat) (ps : List (Parser × Nat)) := match ps with | [] => fun _ s => longestMatchMkResult startSize s @@ -908,7 +908,7 @@ def runCatParser (tokenTable : TokenTable) (parsingTableMap : PrattParsingTableMap) (leanEnv : Lean.Environment) (inputContext : InputContext) - (pos stopPos : String.Pos) (cat : QualifiedIdent) : Lean.Parser.ParserState := + (pos stopPos : String.Pos.Raw) (cat : QualifiedIdent) : Lean.Parser.ParserState := let leanEnv := parserExt.modifyState leanEnv (fun _ => parsingTableMap) let pmc : ParserModuleContext := { env := leanEnv, options := {} } let leanParserState : Lean.Parser.ParserState := { diff --git a/Strata/DDM/TaggedRegions.lean b/Strata/DDM/TaggedRegions.lean index f963fa8bbf..b0ca1bd9b1 100644 --- a/Strata/DDM/TaggedRegions.lean +++ b/Strata/DDM/TaggedRegions.lean @@ -17,7 +17,7 @@ def parserFn (endToken : String) : ParserFn := fun c s => Id.run do if s.hasError then return s let startPos := s.pos - let some stopPos := c.inputString.indexOf endToken s.pos + let some stopPos := c.inputString.indexOfRaw endToken s.pos | s.setError { unexpected := s!"Could not find end token {endToken}" } let s := s.setPos stopPos let leading := c.mkEmptySubstringAt startPos @@ -31,7 +31,7 @@ def mkParser (n : SyntaxNodeKind) (startToken endToken : String) : Parser := open Syntax Syntax.MonadTraverser open Lean.PrettyPrinter.Formatter -private def SourceInfo.getExprPos? : SourceInfo → Option String.Pos +private def SourceInfo.getExprPos? : SourceInfo → Option String.Pos.Raw | SourceInfo.synthetic (pos := pos) .. => pos | _ => none diff --git a/Strata/DDM/Util/ByteArray.lean b/Strata/DDM/Util/ByteArray.lean index 4d6c4b0550..ce0bd01778 100644 --- a/Strata/DDM/Util/ByteArray.lean +++ b/Strata/DDM/Util/ByteArray.lean @@ -94,36 +94,81 @@ def hexDigitToUInt8 (c : Char) : Option UInt8 := def escapeChars : Std.HashMap Char UInt8 := .ofList <| ByteArray.escapedBytes.toList |>.map fun (i, c) => (c, i) -partial def unescapeBytesAux (s : String) (i0 : String.Pos) (a : ByteArray) : Except (String.Pos × String.Pos × String) (ByteArray × String.Pos) := - if h : s.atEnd i0 then +partial def unescapeBytesRawAux (s : String) (i0 : String.Pos.Raw) (a : ByteArray) : Except (String.Pos.Raw × String.Pos.Raw × String) (ByteArray × String.Pos.Raw) := + if i0 = s.endPos then .error (i0, i0, "unexpected end of input, expected closing quote") else - let ch := s.get' i0 h - let i := s.next' i0 h + let ch := i0.get s + let i := i0.next s if ch == '"' then .ok (a, i) else if ch == '\\' then -- Escape sequence - if h : s.atEnd i then + if i = s.endPos then .error (i0, i, "unexpected end of input after backslash") else - let escCh := s.get' i h - let i := s.next' i h + let escCh := i.get s + let i := i.next s if escCh = 'x' then -- Hex escape: \xHH - let j := s.next i - if h : s.atEnd j then - .error (i0, j, "incomplete hex escape sequence") + if i = s.endPos then + .error (i0, i, "incomplete hex escape sequence") else - let c1 := s.get i - let c2 := s.get' j h - let k := s.next' j h - match hexDigitToUInt8 c1, hexDigitToUInt8 c2 with - | some b1, some b2 => - let b := b1 * 16 + b2 - unescapeBytesAux s k (a.push b) - | none, _ => .error (i0, k, "Invalid hex escape sequence") - | _, none => .error (i0, k, "Invalid hex escape sequence") + let c1 := i.get s + let j := i.next s + if j = s.endPos then + .error (i0, j, "incomplete hex escape sequence") + else + let c2 := j.get s + let k := j.next s + match hexDigitToUInt8 c1, hexDigitToUInt8 c2 with + | some b1, some b2 => + let b := b1 * 16 + b2 + unescapeBytesRawAux s k (a.push b) + | none, _ => .error (i0, k, "Invalid hex escape sequence") + | _, none => .error (i0, k, "Invalid hex escape sequence") + else + match escapeChars[escCh]? with + | some b => + unescapeBytesRawAux s i (a.push b) + | none => + .error (i0, i, "invalid escape sequence: {escCh}") + else + unescapeBytesRawAux s i (a.push ch.toUInt8) + +partial def unescapeBytesAux (s : String) (i0 : String.ValidPos s) (a : ByteArray) : Except (String.ValidPos s × String.ValidPos s × String) (ByteArray × String.ValidPos s) := + if h : i0 = s.endValidPos then + .error (i0, i0, "unexpected end of input, expected closing quote") + else + let ch := i0.get h + let i := i0.next h + if ch == '"' then + .ok (a, i) + else if ch == '\\' then + -- Escape sequence + if h : i = s.endValidPos then + .error (i0, i, "unexpected end of input after backslash") + else + let escCh := i.get h + let i := i.next h + if escCh = 'x' then + -- Hex escape: \xHH + if h : i = s.endValidPos then + .error (i0, i, "incomplete hex escape sequence") + else + let c1 := i.get h + let j := i.next h + if h : j = s.endValidPos then + .error (i0, j, "incomplete hex escape sequence") + else + let c2 := j.get h + let k := j.next h + match hexDigitToUInt8 c1, hexDigitToUInt8 c2 with + | some b1, some b2 => + let b := b1 * 16 + b2 + unescapeBytesAux s k (a.push b) + | none, _ => .error (i0, k, "Invalid hex escape sequence") + | _, none => .error (i0, k, "Invalid hex escape sequence") else match escapeChars[escCh]? with | some b => @@ -133,9 +178,8 @@ partial def unescapeBytesAux (s : String) (i0 : String.Pos) (a : ByteArray) : Ex else unescapeBytesAux s i (a.push ch.toUInt8) - -def unescapeBytes (s : String) : Except (String.Pos × String.Pos × String) ByteArray := - let i := s.next <| s.next 0 +def unescapeBytes (s : String) : Except (String.ValidPos s × String.ValidPos s × String) ByteArray := + let i : String.ValidPos s := s.startValidPos |>.next! |>.next! match unescapeBytesAux s i .empty with | .error (f, e, msg) => .error (f, e, msg) | .ok (a, _) => .ok a diff --git a/Strata/DDM/Util/Ion/Lean.lean b/Strata/DDM/Util/Ion/Lean.lean index b0c934d901..b7cd0c8c2c 100644 --- a/Strata/DDM/Util/Ion/Lean.lean +++ b/Strata/DDM/Util/Ion/Lean.lean @@ -126,7 +126,7 @@ instance [h : CachedToIon α] : CachedToIon (List α) where end CachedToIon -private def resolveGlobalDecl {m : Type → Type} [Monad m] [MonadResolveName m] [MonadEnv m] [MonadError m] (tp : Syntax) : m Name := do +private def resolveGlobalDecl {m : Type → Type} [AddMessageContext m] [Monad m] [MonadResolveName m] [MonadEnv m] [MonadError m] [MonadLog m] [MonadOptions m] (tp : Syntax) : m Name := do let cs ← resolveGlobalName tp.getId match cs with | [(tpName, [])] => diff --git a/Strata/DDM/Util/Lean.lean b/Strata/DDM/Util/Lean.lean index 01e24502ed..0ed5b6f66d 100644 --- a/Strata/DDM/Util/Lean.lean +++ b/Strata/DDM/Util/Lean.lean @@ -15,7 +15,7 @@ def mkLocalDeclId (name : String) : TSyntax `Lean.Parser.Command.declId := let dName := .anonymous |>.str name .mk (.ident .none name.toSubstring dName []) -partial def mkErrorMessage (c : InputContext) (pos : String.Pos) (stk : SyntaxStack) (e : Parser.Error) (isSilent : Bool := false) : Message := Id.run do +partial def mkErrorMessage (c : InputContext) (pos : String.Pos.Raw) (stk : SyntaxStack) (e : Parser.Error) (isSilent : Bool := false) : Message := Id.run do let mut pos := pos let mut endPos? := none let mut e := e @@ -47,7 +47,7 @@ where if let .original (trailing := trailing) .. := stx.getTailInfo then pure (some trailing) else none -partial def mkStringMessage (c : InputContext) (pos : String.Pos) (msg : String) (isSilent : Bool := false) : Message := +partial def mkStringMessage (c : InputContext) (pos : String.Pos.Raw) (msg : String) (isSilent : Bool := false) : Message := mkErrorMessage c pos SyntaxStack.empty { unexpected := msg } (isSilent := isSilent) instance : Quote Int where diff --git a/Strata/DDM/Util/String.lean b/Strata/DDM/Util/String.lean index fd99ea9864..ede0a91654 100644 --- a/Strata/DDM/Util/String.lean +++ b/Strata/DDM/Util/String.lean @@ -46,6 +46,18 @@ end Strata namespace String +/-- +Indicates s has a substring at the given index. + +Requires a bound check that shows index is in bounds. +-/ +def hasSubstringAt (s sub : String) (i : Pos.Raw) (index_bound : i.byteIdx + sub.utf8ByteSize ≤ s.utf8ByteSize) : Bool := + sub.bytes.size.all fun j jb => + have p : i.byteIdx + j < s.bytes.size := by + change i.byteIdx + sub.bytes.size ≤ s.bytes.size at index_bound + grind + s.bytes[i.byteIdx + j]'p == sub.bytes[j] + /-- Auxiliary for `indexOf`. Preconditions: * `sub` is not empty @@ -54,34 +66,19 @@ Auxiliary for `indexOf`. Preconditions: It represents the state where the first `j` bytes of `sep` match the bytes `i-j .. i` of `s`. -/ -def indexOfAux (s sub : String) (i : Pos) (j : Pos) : Option Pos := - if s.atEnd i then - none - else - if s.get i == sub.get j then - let i := s.next i - let j := sub.next j - if sub.atEnd j then - some (i - j) - else - indexOfAux s sub i j +def Pos.Raw.indexOfAux (s sub : String) (subp : sub.utf8ByteSize > 0) (i : Pos.Raw) : Option Pos.Raw := + if h : i.byteIdx + sub.utf8ByteSize ≤ s.utf8ByteSize then + if s.hasSubstringAt sub i h then + some i else - indexOfAux s sub (s.next (i - j)) 0 -termination_by (s.endPos.1 - (i - j).1, sub.endPos.1 - j.1) + (i.next s).indexOfAux s sub subp + else + none +termination_by s.endPos.byteIdx - i.byteIdx decreasing_by - focus - rename_i i₀ j₀ _ eq h' - rw [show (s.next i₀ - sub.next j₀).1 = (i₀ - j₀).1 by - show (_ + Char.utf8Size _) - (_ + Char.utf8Size _) = _ - rw [(beq_iff_eq ..).1 eq, Nat.add_sub_add_right]; rfl] - right; exact Nat.sub_lt_sub_left - (Nat.lt_of_le_of_lt (Nat.le_add_right ..) (Nat.gt_of_not_le (mt decide_eq_true h'))) - (lt_next sub _) - focus - rename_i h _ - left; exact Nat.sub_lt_sub_left - (Nat.lt_of_le_of_lt (Nat.sub_le ..) (Nat.gt_of_not_le (mt decide_eq_true h))) - (lt_next s _) + simp only [Pos.Raw.next, Pos.Raw.add_char_eq, endPos] + have p : (i.get s).utf8Size > 0 := Char.utf8Size_pos _ + grind /-- This return the first index in `s` greater than or equal to `b` that contains @@ -90,54 +87,13 @@ the bytes in `sub`. N.B. This will potentially read the same character multiple times. It could be made more efficient by using Boyer-Moore string search. -/ -def indexOf (s sub : String) (b : Pos := 0) : Option Pos := - if sub.isEmpty then - some b +public def indexOfRaw (s sub : String) (b : Pos.Raw := 0) : Option Pos.Raw := + if subp : sub.utf8ByteSize > 0 then + b.indexOfAux s sub subp else - indexOfAux s sub b 0 - -theorem le_def (p q : String.Pos) : p ≤ q ↔ p.byteIdx ≤ q.byteIdx := by - trivial - -theorem Pos.le_of_lt {p q : String.Pos} (a : p < q) : p ≤ q := by - simp at a - simp [String.le_def] - omega - -@[simp] -theorem pos_le_refl (pos : String.Pos) : pos ≤ pos := by - unfold LE.le - simp [instLEPos] - -theorem next_mono (s : String) (p : String.Pos) : p < s.next p := by - simp [String.next, Char.utf8Size] - repeat (split; omega) - omega - -theorem findAux_mono (s : String) (pred : Char → Bool) (stop p : String.Pos) - : p ≤ s.findAux pred stop p := by - unfold String.findAux - split - case isFalse _ => - simp - case isTrue p2_le_stop => - split - case isTrue _ => - simp - case isFalse _ => - have termProof : sizeOf (stop - s.next p) < sizeOf (stop - p) := by - have g : p < (s.next p) := String.next_mono _ _ - simp at g - simp at p2_le_stop; - simp [sizeOf, String.Pos._sizeOf_1] - omega - apply String.Pos.le_trans - apply String.Pos.le_of_lt - apply String.next_mono s - apply String.findAux_mono - termination_by (stop - p) - -def splitLines (s : String) := s.split (· ∈ ['\n', '\r']) + some b + +def splitLines (s : String) := s.splitToList (· ∈ ['\n', '\r']) /-- info: [" ab", "cd", "", "de", ""] diff --git a/Strata/DL/Lambda/LExprEval.lean b/Strata/DL/Lambda/LExprEval.lean index 2f805345f1..59098ca8d2 100644 --- a/Strata/DL/Lambda/LExprEval.lean +++ b/Strata/DL/Lambda/LExprEval.lean @@ -128,10 +128,8 @@ expressions, along with supporting dynamically-typed languages. Currently evaluator only supports LExpr with LMonoTy because LFuncs registered at Factory must have LMonoTy. - -TODO: Once we are on Lean 4.25 or more, we ought to be able to remove the "partial" because this fix should have been merged https://github.com/leanprover/lean4/issues/10353 -/ -partial def eval (n : Nat) (σ : LState TBase) (e : (LExpr TBase.mono)) +def eval (n : Nat) (σ : LState TBase) (e : (LExpr TBase.mono)) : LExpr TBase.mono := match n with | 0 => e @@ -164,7 +162,7 @@ partial def eval (n : Nat) (σ : LState TBase) (e : (LExpr TBase.mono)) -- Not a call of a factory function. evalCore n' σ e -partial def evalCore (n' : Nat) (σ : LState TBase) (e : LExpr TBase.mono) : LExpr TBase.mono := +def evalCore (n' : Nat) (σ : LState TBase) (e : LExpr TBase.mono) : LExpr TBase.mono := match e with | .const _ _ => e | .op _ _ _ => e @@ -178,7 +176,7 @@ partial def evalCore (n' : Nat) (σ : LState TBase) (e : LExpr TBase.mono) : LE | .eq m e1 e2 => evalEq n' σ m e1 e2 | .ite m c t f => evalIte n' σ m c t f -partial def evalIte (n' : Nat) (σ : LState TBase) (m: TBase.Metadata) (c t f : LExpr TBase.mono) : LExpr TBase.mono := +def evalIte (n' : Nat) (σ : LState TBase) (m: TBase.Metadata) (c t f : LExpr TBase.mono) : LExpr TBase.mono := let c' := eval n' σ c match c' with | .true _ => eval n' σ t @@ -194,7 +192,7 @@ partial def evalIte (n' : Nat) (σ : LState TBase) (m: TBase.Metadata) (c t f : let f' := substFvarsFromState σ f .ite m c' t' f' -partial def evalEq (n' : Nat) (σ : LState TBase) (m: TBase.Metadata) (e1 e2 : LExpr TBase.mono) : LExpr TBase.mono := +def evalEq (n' : Nat) (σ : LState TBase) (m: TBase.Metadata) (e1 e2 : LExpr TBase.mono) : LExpr TBase.mono := open LTy.Syntax in let e1' := eval n' σ e1 let e2' := eval n' σ e2 @@ -209,7 +207,7 @@ partial def evalEq (n' : Nat) (σ : LState TBase) (m: TBase.Metadata) (e1 e2 : L else .eq m e1' e2' -partial def evalApp (n' : Nat) (σ : LState TBase) (e e1 e2 : LExpr TBase.mono) : LExpr TBase.mono := +def evalApp (n' : Nat) (σ : LState TBase) (e e1 e2 : LExpr TBase.mono) : LExpr TBase.mono := let e1' := eval n' σ e1 let e2' := eval n' σ e2 match e1' with diff --git a/Strata/DL/SMT/Encoder.lean b/Strata/DL/SMT/Encoder.lean index b9937c67e1..c1a6846681 100644 --- a/Strata/DL/SMT/Encoder.lean +++ b/Strata/DL/SMT/Encoder.lean @@ -294,7 +294,7 @@ def termToString (e : Term) : IO String := do let solver ← Solver.bufferWriter b let _ ← ((Encoder.encodeTerm False e).run EncoderState.init).run solver let contents ← b.get - if h: String.validateUTF8 contents.data + if h: contents.data.IsValidUTF8 then pure (String.fromUTF8 contents.data h) else pure "Converting SMT Term to bytes produced an invalid UTF-8 sequence." diff --git a/Strata/DL/SMT/Op.lean b/Strata/DL/SMT/Op.lean index 2aa4dc19f1..b354447ce2 100644 --- a/Strata/DL/SMT/Op.lean +++ b/Strata/DL/SMT/Op.lean @@ -182,7 +182,7 @@ elab "#genOpAbbrevs" : command => do if let some (.inductInfo coreInfo) := env.find? `Strata.SMT.Op.Core then for ctor in coreInfo.ctors do - let ctorName := ctor.toString.split (· == '.') |>.getLast! + let ctorName := ctor.toString.splitToList (· == '.') |>.getLast! let name := Lean.Name.mkStr2 "Op" ctorName if ctorName == "uf" then let abbrevCmd ← `(command| abbrev $(mkIdent name) (arg : UF) := Op.core (Op.Core.uf arg)) @@ -193,14 +193,14 @@ elab "#genOpAbbrevs" : command => do if let some (.inductInfo numInfo) := env.find? `Strata.SMT.Op.Num then for ctor in numInfo.ctors do - let ctorName := ctor.toString.split (· == '.') |>.getLast! + let ctorName := ctor.toString.splitToList (· == '.') |>.getLast! let name := Lean.Name.mkStr2 "Op" ctorName let abbrevCmd ← `(command| abbrev $(mkIdent name) := Op.num $(mkIdent ctor)) abbrevs := abbrevs.push (name, abbrevCmd) if let some (.inductInfo bvInfo) := env.find? `Strata.SMT.Op.BV then for ctor in bvInfo.ctors do - let ctorName := ctor.toString.split (· == '.') |>.getLast! + let ctorName := ctor.toString.splitToList (· == '.') |>.getLast! let name := Lean.Name.mkStr2 "Op" ctorName if ctorName == "zero_extend" then let abbrevCmd ← `(command| abbrev $(mkIdent name) (n : Nat) := Op.bv (Op.BV.zero_extend n)) @@ -211,7 +211,7 @@ elab "#genOpAbbrevs" : command => do if let some (.inductInfo strInfo) := env.find? `Strata.SMT.Op.Strings then for ctor in strInfo.ctors do - let ctorName := ctor.toString.split (· == '.') |>.getLast! + let ctorName := ctor.toString.splitToList (· == '.') |>.getLast! let name := Lean.Name.mkStr2 "Op" ctorName if ctorName == "re_index" then let abbrevCmd ← `(command| abbrev $(mkIdent name) (n : Nat) := Op.str (Op.Strings.re_index n)) diff --git a/Strata/DL/Util/StringGen.lean b/Strata/DL/Util/StringGen.lean index 2f11f1b645..feede41c7c 100644 --- a/Strata/DL/Util/StringGen.lean +++ b/Strata/DL/Util/StringGen.lean @@ -17,8 +17,7 @@ import Strata.DL.Util.Counter /-- `s.IsSuffix t` checks if the string `s` is a suffix of the string `t`. from mathlib https://github.com/leanprover-community/mathlib4/blob/f3c56c29d5c787d62f66c207e097a159ff66318a/Mathlib/Data/String/Defs.lean#L37-L39 -/ -def String.IsSuffix : String → String → Prop - | ⟨d1⟩, ⟨d2⟩ => List.IsSuffix d1 d2 +abbrev String.IsSuffix (s1 s2 : String) : Prop := List.IsSuffix s1.data s2.data /-- Wrapper around CounterState to allow a prefix -/ structure StringGenState where @@ -66,21 +65,10 @@ theorem String.append_eq_prefix (as as' bs : String): (as ++ bs = as' ++ bs) → as = as' := by intros Heq by_cases as = as' <;> simp_all - next Hne => - have Heq' := String.ext_iff.mp Heq - have Hne' : ¬ as.data = as'.data := by - intros Heq - have HH := String.ext_iff.mpr Heq - contradiction - simp [String.data_append] at * - contradiction theorem List.reverse_injective : List.reverse l₁ = List.reverse l₂ → l₁ = l₂ := List.reverse_inj.mp -theorem String.data_wrap : pf = { data:= pf : String}.data := rfl -theorem String.data_wrap_eq (a b : String) : a.data = b.data → a = b := String.ext - theorem StringGenState.contains : StringGenState.gen pf σ = (s, σ') → s ∈ σ'.generated.unzip.2 := by @@ -109,21 +97,21 @@ theorem Nat_digitchar_neq_underscore {x: Nat}: ¬ '_' = Nat.digitChar x := by unfold Nat.digitChar repeat (cases x; simp; rename_i x; simp [*]) -theorem Nat_toDigitsCore_not_contain_underscore: ¬'_' ∈ l → ¬'_' ∈ (Nat.toDigitsCore 10 n m l).asString.data := by +theorem Nat_toDigitsCore_not_contain_underscore {n m l} : '_' ∉ l → '_' ∉ Nat.toDigitsCore 10 n m l := by intro Hnin induction n using Nat.strongRecOn generalizing m l rename_i n ind cases n - simp [Nat.toDigitsCore, List.asString, Hnin] + simp [Nat.toDigitsCore, Hnin] rename_i n - simp [Nat.toDigitsCore, List.asString] + simp [Nat.toDigitsCore] split simp [Nat_digitchar_neq_underscore, Hnin] apply ind <;> simp [*, Nat_digitchar_neq_underscore] -theorem Nat_toString_not_contain_underscore {x: Nat} : ¬ '_' ∈ (toString x).data := by +theorem Nat_toString_not_contain_underscore {x: Nat} : '_' ∉ (toString x).data := by simp [toString, Nat.repr, Nat.toDigits] - exact Nat_toDigitsCore_not_contain_underscore (by simp) + exact Nat_toDigitsCore_not_contain_underscore (l := []) (by simp) theorem Nat_digitChar_index: x.digitChar = #['0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f','*'][min x 16]'(by simp; omega) := by @@ -132,21 +120,14 @@ theorem Nat_digitChar_index: x.digitChar = repeat (cases x; simp; rename_i x) any_goals simp -theorem neq_elem_of_neq_index_of_nodup (H: List.Nodup a) (Hl1: x < a.length) (Hl2: y < a.length) (Hneq: ¬ x = y): ¬ a[x]'Hl1 = a[y]'Hl2 := by +theorem nodup_implies_injective (H: List.Nodup a) (Hl1: x < a.length) (Hl2: y < a.length) (eq : a[x]'Hl1 = a[y]'Hl2) : x = y := by unfold List.Nodup at H induction a generalizing x y - simp at Hl1 - rename_i h t ind - simp at H - cases x; cases y - contradiction - simp - apply H.left _ (by simp) - cases y <;> simp - rename_i y - simp [Eq.comm, H.left (t[y]'(by simp at Hl1; omega)) (by simp)] - rename_i x y - simp_all + case nil => + simp at Hl1 + case cons h t ind => + simp only [List.pairwise_cons] at H + grind theorem Nat_eq_of_digitChar_eq : n < 16 → m < 16 → n.digitChar = m.digitChar → n = m := by intro H1 H2 @@ -156,11 +137,7 @@ theorem Nat_eq_of_digitChar_eq : n < 16 → m < 16 → n.digitChar = m.digitChar have: min m 16 = m := by omega simp [this] intro H - false_or_by_contra - have : ¬ ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', '*'][n]'(by simp; omega) = - ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', '*'][m]'(by simp; omega) :=by - apply neq_elem_of_neq_index_of_nodup (by simp) (by simp; omega) (by simp; omega) (by assumption) - contradiction + apply nodup_implies_injective (by simp) _ _ H theorem Nat_toDigitsCore_list_suffix : l <:+ Nat.toDigitsCore 10 x n l := by induction x generalizing n l <;> simp [Nat.toDigitsCore] @@ -250,64 +227,59 @@ theorem Nat_eq_of_toDigitsCore_eq : x > n → y > m theorem Nat_eq_of_toString_eq {x y: Nat}: (toString x) = (toString y) → x = y := by intro H - simp [toString, Nat.repr, Nat.toDigits, List.asString] at H - apply Nat_eq_of_toDigitsCore_eq (by simp) (by simp) H + simp only [toString, Nat.repr] at H + apply Nat_eq_of_toDigitsCore_eq (by simp) (by simp) (List.asString_injective H) theorem Nat_eq_of_StringGen_suffix {x y: Nat}: ("_" ++ toString x).IsSuffix (s ++ "_" ++ toString y) → x = y := by intro Hsuf + simp only [String.IsSuffix, String.data_append] at Hsuf + change ['_'] ++ (toString x).data <:+ s.data ++ ['_'] ++ (toString y).data at Hsuf apply Nat_eq_of_toString_eq - simp only [String.IsSuffix] at Hsuf by_cases Hc: (toString x).length < (toString y).length - have Hsuf': (toString y).data <:+ ((s ++ "_").append (toString y)).data := by - simp only [String.append, List.append_assoc, List.cons_append, List.nil_append, toString] + have Hsuf': (toString y).data <:+ s.data ++ ['_'] ++ (toString y).data := by apply List.suffix_append_of_suffix simp - have : ("_".append (toString x)).data <:+ (toString y).data := by + have h : ['_'] ++ (toString x).data <:+ (toString y).data := by + simp only [List.append_assoc] at Hsuf + simp only [List.append_assoc] at Hsuf' apply List.suffix_of_suffix_length_le Hsuf Hsuf' - simp [String.append, String.length, toString] at * + simp omega - have : ¬ ("_".append (toString x)).data <:+ (toString y).data := by - intro h; - simp [String.append, List.IsSuffix] at h - obtain ⟨t, h⟩ := h - have : '_' ∈ (toString y).data := by simp [← h] - have := @Nat_toString_not_contain_underscore y - contradiction + obtain ⟨t, h⟩ := h + have : '_' ∈ (toString y).data := by simp [← h] + have := @Nat_toString_not_contain_underscore y contradiction --case 2 by_cases Hc: (toString x).length > (toString y).length - have Hsuf : (toString x).data <:+ ((s ++ "_").append (toString y)).data := by - simp [String.append, toString, List.IsSuffix] at * + have Hsuf : (toString x).data <:+ s.data ++ ['_'] ++ (toString y).data := by + simp [toString, List.IsSuffix] at * obtain ⟨t, H⟩ := Hsuf exists t ++ ['_'] simp [← H] - have Hsuf': ("_".append (toString y)).data <:+ ((s ++ "_").append (toString y)).data := by - simp only [String.append, List.append_assoc, List.cons_append, List.nil_append] + have Hsuf': ['_'] ++ (toString y).data <:+ s.data ++ ['_'] ++ (toString y).data := by + simp only [List.append_assoc] apply List.suffix_append_of_suffix simp - have H: ("_".append (toString y)).data <:+ (toString x).data := by + have H: ['_'] ++ (toString y).data <:+ (toString x).data := by apply List.suffix_of_suffix_length_le Hsuf' Hsuf - simp [String.append, String.length, toString] at * + simp omega - have : ¬ ("_".append (toString y)).data <:+ (toString x).data := by + have : ¬ (['_'] ++ (toString y).data) <:+ (toString x).data := by intro h; - simp [String.append, List.IsSuffix] at h obtain ⟨t, h⟩ := h have : '_' ∈ (toString x).data := by simp [← h] have := @Nat_toString_not_contain_underscore x contradiction contradiction -- case 3 - have Hc: (toString x).data.length = (toString y).data.length := by simp [String.length, toString] at *; omega - have Hsuf : (toString x).data <:+ ((s ++ "_").append (toString y)).data := by - simp [String.append, toString, List.IsSuffix] at * + have Hc: (toString x).data.length = (toString y).data.length := by simp; omega + have Hsuf : (toString x).data <:+ s.data ++ ['_'] ++ (toString y).data := by obtain ⟨t, H⟩ := Hsuf exists t ++ ['_'] - simp [← H] - have Hsuf': (toString y).data <:+ ((s ++ "_").append (toString y)).data := by - simp only [String.append, List.append_assoc, List.cons_append, List.nil_append, toString] - apply List.suffix_append_of_suffix - simp + simp only [← List.append_assoc] at * + exact H + have Hsuf': (toString y).data <:+ s.data ++ ['_'] ++ (toString y).data := by + grind simp [List.suffix_iff_eq_drop, Hc] at * rw [← Hsuf] at Hsuf' simp [String.ext_iff, Hsuf'] @@ -334,7 +306,7 @@ theorem StringGenState.WFMono : simp at Hcontra intro c s H cases H - rename_i H - simp [H.right, H.left, String.IsSuffix, String.append] - apply List.suffix_append - apply Hwf.right.right.right <;> assumption + · rename_i H + simp only [H.right, H.left, String.IsSuffix, String.append_assoc, String.data_append] + apply List.suffix_append + · apply Hwf.right.right.right <;> assumption diff --git a/Strata/Languages/Boogie/Verifier.lean b/Strata/Languages/Boogie/Verifier.lean index 8fd465e8c5..3c1eea16ab 100644 --- a/Strata/Languages/Boogie/Verifier.lean +++ b/Strata/Languages/Boogie/Verifier.lean @@ -145,7 +145,7 @@ def formatPositionMetaData [BEq P.Ident] [ToFormat P.Expr] (md : MetaData P): Op let line ← md.findElem MetaData.startLineLabel let col ← md.findElem MetaData.startColumnLabel let baseName := match file.value with - | .msg m => (m.split (λ c => c == '/')).getLast! + | .msg m => (m.splitToList (λ c => c == '/')).getLast! | _ => "" f!"{baseName}({line.value}, {col.value})" diff --git a/Strata/Languages/Python/Regex/ReParser.lean b/Strata/Languages/Python/Regex/ReParser.lean index cc70bff24e..4bf33814a5 100644 --- a/Strata/Languages/Python/Regex/ReParser.lean +++ b/Strata/Languages/Python/Regex/ReParser.lean @@ -30,12 +30,12 @@ inductive ParseError where parentheses) or when some other error occurs during compilation or matching. It is never an error if a string contains no match for a pattern." -/ - | patternError (message : String) (pattern : String) (pos : String.Pos) + | patternError (message : String) (pattern : String) (pos : String.Pos.Raw) /-- `unimplemented` is raised whenever we don't support some regex operations (e.g., lookahead assertions). -/ - | unimplemented (message : String) (pattern : String) (pos : String.Pos) + | unimplemented (message : String) (pattern : String) (pos : String.Pos.Raw) deriving Repr def ParseError.toString : ParseError → String @@ -85,75 +85,75 @@ inductive RegexAST where /-- Parse character class like [a-z], [0-9], etc. into union of ranges and chars. Note that this parses `|` as a character. -/ -def parseCharClass (s : String) (pos : String.Pos) : Except ParseError (RegexAST × String.Pos) := do - if s.get? pos != some '[' then throw (.patternError "Expected '[' at start of character class" s pos) - let mut i := s.next pos +def parseCharClass (s : String) (pos : String.Pos.Raw) : Except ParseError (RegexAST × String.Pos.Raw) := do + if pos.get? s != some '[' then throw (.patternError "Expected '[' at start of character class" s pos) + let mut i := pos.next s -- Check for complement (negation) with leading ^ - let isComplement := !s.atEnd i && s.get? i == some '^' + let isComplement := !i.atEnd s && i.get? s == some '^' if isComplement then - i := s.next i + i := i.next s let mut result : Option RegexAST := none -- Process each element in the character class. - while !s.atEnd i && s.get? i != some ']' do - let some c1 := s.get? i | throw (.patternError "Invalid character in class" s i) - let i1 := s.next i + while !i.atEnd s && i.get? s != some ']' do + let some c1 := i.get? s | throw (.patternError "Invalid character in class" s i) + let i1 := i.next s -- Check for range pattern: c1-c2. - if !s.atEnd i1 && s.get? i1 == some '-' then - let i2 := s.next i1 - if !s.atEnd i2 && s.get? i2 != some ']' then - let some c2 := s.get? i2 | throw (.patternError "Invalid character in range" s i2) + if !i1.atEnd s && i1.get? s == some '-' then + let i2 := i1.next s + if !i2.atEnd s && i2.get? s != some ']' then + let some c2 := i2.get? s | throw (.patternError "Invalid character in range" s i2) if c1 > c2 then throw (.patternError s!"Invalid character range [{c1}-{c2}]: \ start character '{c1}' is greater than end character '{c2}'" s i) let r := RegexAST.range c1 c2 -- Union with previous elements. result := some (match result with | none => r | some prev => RegexAST.union prev r) - i := s.next i2 + i := i2.next s continue -- Single character. let r := RegexAST.char c1 result := some (match result with | none => r | some prev => RegexAST.union prev r) - i := s.next i + i := i.next s let some ast := result | throw (.patternError "Unterminated character set" s pos) let finalAst := if isComplement then RegexAST.complement ast else ast - pure (finalAst, s.next i) + pure (finalAst, i.next s) ------------------------------------------------------------------------------- /-- Parse numeric repeats like `{10}` or `{1,10}` into min and max bounds. -/ -def parseBounds (s : String) (pos : String.Pos) : Except ParseError (Nat × Nat × String.Pos) := do - if s.get? pos != some '{' then throw (.patternError "Expected '{' at start of bounds" s pos) - let mut i := s.next pos +def parseBounds (s : String) (pos : String.Pos.Raw) : Except ParseError (Nat × Nat × String.Pos.Raw) := do + if pos.get? s != some '{' then throw (.patternError "Expected '{' at start of bounds" s pos) + let mut i := pos.next s let mut numStr := "" -- Parse first number. - while !s.atEnd i && (s.get? i).any Char.isDigit do - numStr := numStr.push ((s.get? i).get!) - i := s.next i + while !i.atEnd s && (i.get? s).any Char.isDigit do + numStr := numStr.push ((i.get? s).get!) + i := i.next s let some n := numStr.toNat? | throw (.patternError "Invalid minimum bound" s pos) -- Check for comma (range) or closing brace (exact count). - match s.get? i with - | some '}' => pure (n, n, s.next i) -- {n} means exactly n times. + match i.get? s with + | some '}' => pure (n, n, i.next s) -- {n} means exactly n times. | some ',' => - i := s.next i + i := i.next s -- Parse maximum bound numStr := "" - while !s.atEnd i && (s.get? i).any Char.isDigit do - numStr := numStr.push ((s.get? i).get!) - i := s.next i + while !i.atEnd s && (i.get? s).any Char.isDigit do + numStr := numStr.push ((i.get? s).get!) + i := i.next s let some max := numStr.toNat? | throw (.patternError "Invalid maximum bound" s i) - if s.get? i != some '}' then throw (.patternError "Expected '}' at end of bounds" s i) + if i.get? s != some '}' then throw (.patternError "Expected '}' at end of bounds" s i) -- Validate bounds order if max < n then throw (.patternError s!"Invalid repeat bounds \{{n},{max}}: \ maximum {max} is less than minimum {n}" s pos) - pure (n, max, s.next i) + pure (n, max, i.next s) | _ => throw (.patternError "Invalid bounds syntax" s i) ------------------------------------------------------------------------------- @@ -163,10 +163,10 @@ mutual Parse atom: single element (char, class, anchor, group) with optional quantifier. Stops at the first `|`. -/ -partial def parseAtom (s : String) (pos : String.Pos) : Except ParseError (RegexAST × String.Pos) := do - if s.atEnd pos then throw (.patternError "Unexpected end of regex" s pos) +partial def parseAtom (s : String) (pos : String.Pos.Raw) : Except ParseError (RegexAST × String.Pos.Raw) := do + if pos.atEnd s then throw (.patternError "Unexpected end of regex" s pos) - let some c := s.get? pos | throw (.patternError "Invalid position" s pos) + let some c := pos.get? s | throw (.patternError "Invalid position" s pos) -- Detect invalid quantifier at start if c == '*' || c == '+' || c == '{' || c == '?' then @@ -178,19 +178,19 @@ partial def parseAtom (s : String) (pos : String.Pos) : Except ParseError (Regex -- Parse base element (anchor, char class, group, anychar, escape, or single char). let (base, nextPos) ← match c with - | '^' => pure (RegexAST.anchor_start, s.next pos) - | '$' => pure (RegexAST.anchor_end, s.next pos) + | '^' => pure (RegexAST.anchor_start, pos.next s) + | '$' => pure (RegexAST.anchor_end, pos.next s) | '[' => parseCharClass s pos | '(' => parseExplicitGroup s pos - | '.' => pure (RegexAST.anychar, s.next pos) + | '.' => pure (RegexAST.anychar, pos.next s) | '\\' => -- Handle escape sequence. -- Note: Python uses a single backslash as an escape character, but Lean -- strings need to escape that. After DDMification, we will see two -- backslashes in Strata for every Python backslash. - let nextPos := s.next pos - if s.atEnd nextPos then throw (.patternError "Incomplete escape sequence at end of regex" s pos) - let some escapedChar := s.get? nextPos | throw (.patternError "Invalid escape position" s nextPos) + let nextPos := pos.next s + if nextPos.atEnd s then throw (.patternError "Incomplete escape sequence at end of regex" s pos) + let some escapedChar := nextPos.get? s | throw (.patternError "Invalid escape position" s nextPos) -- Check for special sequences (unsupported right now). match escapedChar with | 'A' | 'b' | 'B' | 'd' | 'D' | 's' | 'S' | 'w' | 'W' | 'z' | 'Z' => @@ -201,38 +201,38 @@ partial def parseAtom (s : String) (pos : String.Pos) : Except ParseError (Regex if c.isDigit then throw (.unimplemented s!"Backreference \\{c} is not supported" s pos) else - pure (RegexAST.char escapedChar, s.next nextPos) - | _ => pure (RegexAST.char c, s.next pos) + pure (RegexAST.char escapedChar, nextPos.next s) + | _ => pure (RegexAST.char c, pos.next s) -- Check for numeric repeat suffix on base element (but not on anchors) match base with | .anchor_start | .anchor_end => pure (base, nextPos) | _ => - if !s.atEnd nextPos then - match s.get? nextPos with + if !nextPos.atEnd s then + match nextPos.get? s with | some '{' => let (min, max, finalPos) ← parseBounds s nextPos pure (RegexAST.loop base min max, finalPos) | some '*' => - let afterStar := s.next nextPos - if !s.atEnd afterStar then - match s.get? afterStar with + let afterStar := nextPos.next s + if !afterStar.atEnd s then + match afterStar.get? s with | some '?' => throw (.unimplemented "Non-greedy quantifier *? is not supported" s nextPos) | some '+' => throw (.unimplemented "Possessive quantifier *+ is not supported" s nextPos) | _ => pure (RegexAST.star base, afterStar) else pure (RegexAST.star base, afterStar) | some '+' => - let afterPlus := s.next nextPos - if !s.atEnd afterPlus then - match s.get? afterPlus with + let afterPlus := nextPos.next s + if !afterPlus.atEnd s then + match afterPlus.get? s with | some '?' => throw (.unimplemented "Non-greedy quantifier +? is not supported" s nextPos) | some '+' => throw (.unimplemented "Possessive quantifier ++ is not supported" s nextPos) | _ => pure (RegexAST.plus base, afterPlus) else pure (RegexAST.plus base, afterPlus) | some '?' => - let afterQuestion := s.next nextPos - if !s.atEnd afterQuestion then - match s.get? afterQuestion with + let afterQuestion := nextPos.next s + if !afterQuestion.atEnd s then + match afterQuestion.get? s with | some '?' => throw (.unimplemented "Non-greedy quantifier ?? is not supported" s nextPos) | some '+' => throw (.unimplemented "Possessive quantifier ?+ is not supported" s nextPos) | _ => pure (RegexAST.optional base, afterQuestion) @@ -242,15 +242,15 @@ partial def parseAtom (s : String) (pos : String.Pos) : Except ParseError (Regex pure (base, nextPos) /-- Parse explicit group with parentheses. -/ -partial def parseExplicitGroup (s : String) (pos : String.Pos) : Except ParseError (RegexAST × String.Pos) := do - if s.get? pos != some '(' then throw (.patternError "Expected '(' at start of group" s pos) - let mut i := s.next pos +partial def parseExplicitGroup (s : String) (pos : String.Pos.Raw) : Except ParseError (RegexAST × String.Pos.Raw) := do + if pos.get? s != some '(' then throw (.patternError "Expected '(' at start of group" s pos) + let mut i := pos.next s -- Check for extension notation (?... - if !s.atEnd i && s.get? i == some '?' then - let i1 := s.next i - if !s.atEnd i1 then - match s.get? i1 with + if !i.atEnd s && i.get? s == some '?' then + let i1 := i.next s + if !i1.atEnd s then + match i1.get? s with | some '=' => throw (.unimplemented "Positive lookahead (?=...) is not supported" s pos) | some '!' => throw (.unimplemented "Negative lookahead (?!...) is not supported" s pos) | _ => throw (.unimplemented "Extension notation (?...) is not supported" s pos) @@ -259,17 +259,17 @@ partial def parseExplicitGroup (s : String) (pos : String.Pos) : Except ParseErr pure (.group inner, finalPos) /-- Parse group: handles alternation and concatenation at current scope. -/ -partial def parseGroup (s : String) (pos : String.Pos) (endChar : Option Char) : - Except ParseError (RegexAST × String.Pos) := do +partial def parseGroup (s : String) (pos : String.Pos.Raw) (endChar : Option Char) : + Except ParseError (RegexAST × String.Pos.Raw) := do let mut alternatives : List (List RegexAST) := [[]] let mut i := pos -- Parse until end of string or `endChar`. - while !s.atEnd i && (endChar.isNone || s.get? i != endChar) do - if s.get? i == some '|' then + while !i.atEnd s && (endChar.isNone || i.get? s != endChar) do + if i.get? s == some '|' then -- Push a new scope to `alternatives`. alternatives := [] :: alternatives - i := s.next i + i := i.next s else let (ast, nextPos) ← parseAtom s i alternatives := match alternatives with @@ -279,9 +279,9 @@ partial def parseGroup (s : String) (pos : String.Pos) (endChar : Option Char) : -- Check for expected end character. if let some ec := endChar then - if s.get? i != some ec then + if i.get? s != some ec then throw (.patternError s!"Expected '{ec}'" s i) - i := s.next i + i := i.next s -- Build result: concatenate each alternative, then union them. let concatAlts := alternatives.reverse.filterMap fun alt => diff --git a/Strata/Transform/CallElimCorrect.lean b/Strata/Transform/CallElimCorrect.lean index 143edada1b..f41d33dbe8 100644 --- a/Strata/Transform/CallElimCorrect.lean +++ b/Strata/Transform/CallElimCorrect.lean @@ -2498,17 +2498,19 @@ theorem Procedure.find.go_in_decls : theorem Procedure.find_in_decls : Program.Procedure.find? p name = some proc → - ∃ md, - .proc proc md ∈ p.decls := by + ∃ md, .proc proc md ∈ p.decls := by intros Hsome - simp [Program.Procedure.find?] at Hsome - split at Hsome <;> simp_all - simp [Decl.getProc] at Hsome - split at Hsome <;> simp_all - next md heq => - exists md - simp [Program.find?] at heq - exact find.go_in_decls heq + simp only [Program.Procedure.find?] at Hsome + split at Hsome + case h_1 => + grind + case h_2 d heq => + simp only [Decl.getProc, Option.some.injEq] at Hsome + split at Hsome + case h_1 _ _ proc' md _ => + exists md + simp only [Hsome] at heq + exact find.go_in_decls heq theorem Program.find.go_decl_kind_match : Program.find?.go d name decls = some decl → diff --git a/lakefile.toml b/lakefile.toml index f87813936f..f70d9e7dcf 100644 --- a/lakefile.toml +++ b/lakefile.toml @@ -3,6 +3,9 @@ version = "0.1.0" defaultTargets = ["Strata", "strata", "StrataMain", "StrataVerify", "StrataToCBMC", "BoogieToGoto"] testDriver = "StrataTest" +[leanOptions] +experimental.module = true + [[require]] name = "plausible" git = "https://github.com/leanprover-community/plausible.git" diff --git a/lean-toolchain b/lean-toolchain index 099e86941d..8c7c6ec0ed 100644 --- a/lean-toolchain +++ b/lean-toolchain @@ -1 +1 @@ -v4.24.0 \ No newline at end of file +v4.25.2 \ No newline at end of file From 245f7ad36870ac88bc943e2ec0b14895f8c8aa13 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 16 Dec 2025 13:58:34 +0100 Subject: [PATCH 42/68] Fix after merge --- StrataTest/Util/TestDiagnostics.lean | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/StrataTest/Util/TestDiagnostics.lean b/StrataTest/Util/TestDiagnostics.lean index a654af4039..e2c8dca775 100644 --- a/StrataTest/Util/TestDiagnostics.lean +++ b/StrataTest/Util/TestDiagnostics.lean @@ -34,8 +34,9 @@ def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation if caretStart.byteIdx < trimmed.length then -- Count carets let mut caretEnd := caretStart - while caretEnd.byteIdx < trimmed.length && trimmed.get caretEnd == '^' do - caretEnd := caretEnd + ⟨1⟩ + let currentChar := String.Pos.Raw.get trimmed caretEnd + while caretEnd.byteIdx < trimmed.bytes.size && currentChar == '^' do + caretEnd := caretEnd + currentChar -- Get the message part after carets let afterCarets := trimmed.drop caretEnd.byteIdx |>.trim From 95bb90481cd9860e8fed47d34cd69697ecd2b360 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 16 Dec 2025 14:17:27 +0100 Subject: [PATCH 43/68] Fix --- StrataTest/Util/TestDiagnostics.lean | 61 ++++++++++++++-------------- 1 file changed, 30 insertions(+), 31 deletions(-) diff --git a/StrataTest/Util/TestDiagnostics.lean b/StrataTest/Util/TestDiagnostics.lean index e2c8dca775..7f08aff7a4 100644 --- a/StrataTest/Util/TestDiagnostics.lean +++ b/StrataTest/Util/TestDiagnostics.lean @@ -7,6 +7,7 @@ import Strata.Languages.Boogie.Verifier open Strata +open String namespace StrataTest.Util /-- A diagnostic expectation parsed from source comments -/ @@ -31,37 +32,35 @@ def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation let trimmed := line.trimLeft.drop 2 -- Remove "//" -- Find the caret sequence let caretStart := trimmed.find (· == '^') - if caretStart.byteIdx < trimmed.length then - -- Count carets - let mut caretEnd := caretStart - let currentChar := String.Pos.Raw.get trimmed caretEnd - while caretEnd.byteIdx < trimmed.bytes.size && currentChar == '^' do - caretEnd := caretEnd + currentChar - - -- Get the message part after carets - let afterCarets := trimmed.drop caretEnd.byteIdx |>.trim - if afterCarets.length > 0 then - -- Parse level and message - match afterCarets.splitOn ":" with - | level :: messageParts => - let level := level.trim - let message := (": ".intercalate messageParts).trim - - -- Calculate column positions (carets are relative to line start including comment spacing) - let commentPrefix := (line.takeWhile (fun c => c == ' ' || c == '\t')).length + "//".length - let caretColStart := commentPrefix + caretStart.byteIdx - let caretColEnd := commentPrefix + caretEnd.byteIdx - - -- The diagnostic is on the previous line - if i > 0 then - expectations := expectations.append [{ - line := i, -- 1-indexed line number (the line before the comment) - colStart := caretColStart, - colEnd := caretColEnd, - level := level, - message := message - }] - | [] => pure () + let mut currentCaret := caretStart + let currentChar := Pos.Raw.get trimmed currentCaret + while not (Pos.Raw.atEnd trimmed currentCaret) && currentChar == '^' do + currentCaret := currentCaret + currentChar + + -- Get the message part after carets + let afterCarets := trimmed.drop currentCaret.byteIdx |>.trim + if afterCarets.length > 0 then + -- Parse level and message + match afterCarets.splitOn ":" with + | level :: messageParts => + let level := level.trim + let message := (": ".intercalate messageParts).trim + + -- Calculate column positions (carets are relative to line start including comment spacing) + let commentPrefix := (line.takeWhile (fun c => c == ' ' || c == '\t')).length + "//".length + let caretColStart := commentPrefix + caretStart.byteIdx + let caretColEnd := commentPrefix + currentCaret.byteIdx + + -- The diagnostic is on the previous line + if i > 0 then + expectations := expectations.append [{ + line := i, -- 1-indexed line number (the line before the comment) + colStart := caretColStart, + colEnd := caretColEnd, + level := level, + message := message + }] + | [] => pure () expectations From 1d19b86e94106939a4723085a03c4531cffce449 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 16 Dec 2025 14:19:33 +0100 Subject: [PATCH 44/68] Fix oops --- StrataTest/Util/TestDiagnostics.lean | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/StrataTest/Util/TestDiagnostics.lean b/StrataTest/Util/TestDiagnostics.lean index 7f08aff7a4..b8ceb3cf12 100644 --- a/StrataTest/Util/TestDiagnostics.lean +++ b/StrataTest/Util/TestDiagnostics.lean @@ -33,9 +33,8 @@ def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation -- Find the caret sequence let caretStart := trimmed.find (· == '^') let mut currentCaret := caretStart - let currentChar := Pos.Raw.get trimmed currentCaret - while not (Pos.Raw.atEnd trimmed currentCaret) && currentChar == '^' do - currentCaret := currentCaret + currentChar + while not (Pos.Raw.atEnd trimmed currentCaret) && (Pos.Raw.get trimmed currentCaret) == '^' do + currentCaret := trimmed.next currentCaret -- Get the message part after carets let afterCarets := trimmed.drop currentCaret.byteIdx |>.trim From 125bf17f3c95292b30b3c6996e4a77a124418d00 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 16 Dec 2025 14:36:34 +0100 Subject: [PATCH 45/68] Fix warning --- StrataTest/Util/TestDiagnostics.lean | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/StrataTest/Util/TestDiagnostics.lean b/StrataTest/Util/TestDiagnostics.lean index b8ceb3cf12..e54eac301a 100644 --- a/StrataTest/Util/TestDiagnostics.lean +++ b/StrataTest/Util/TestDiagnostics.lean @@ -34,7 +34,7 @@ def parseDiagnosticExpectations (content : String) : List DiagnosticExpectation let caretStart := trimmed.find (· == '^') let mut currentCaret := caretStart while not (Pos.Raw.atEnd trimmed currentCaret) && (Pos.Raw.get trimmed currentCaret) == '^' do - currentCaret := trimmed.next currentCaret + currentCaret := Pos.Raw.next trimmed currentCaret -- Get the message part after carets let afterCarets := trimmed.drop currentCaret.byteIdx |>.trim From 1646019b33fa55ae7037b7a908ae03503d503549 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Mika=C3=ABl=20Mayer?= Date: Tue, 16 Dec 2025 11:44:29 -0600 Subject: [PATCH 46/68] Add DDM unwrap metadata (#261) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ## Add DDM Unwrap Capability via Metadata Adds the ability to unwrap declared category types using @[unwrap] metadata, generating constructors with raw types instead of Ann wrappers. ## Usage op index (@[unwrap] id : Num) : Expression => id; Generates `Expression.index : α → Nat → Expression α` instead of `α → Ann Nat α → Expression α`. Works for all declared categories: Num, Ident, Str, Decimal, ByteArray. ## Implementation * Added unwrap metadata to StrataDDL dialect * Elaboration checks argument metadata and unwraps accordingly * Updated code generation and serialization * Test: StrataTest/DDM/UnwrapSimple.lean --------- Co-authored-by: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> --- Strata/DDM/AST.lean | 3 +- Strata/DDM/BuiltinDialects/StrataDDL.lean | 1 + Strata/DDM/Elab/Core.lean | 21 ++- Strata/DDM/Elab/SyntaxElab.lean | 28 +++- Strata/DDM/Format.lean | 4 +- Strata/DDM/Integration/Lean/Gen.lean | 175 +++++++++++++++------- Strata/DDM/Integration/Lean/ToExpr.lean | 2 +- Strata/DDM/Ion.lean | 20 ++- Strata/DDM/Parser.lean | 4 +- StrataTest/DDM/UnwrapSimple.lean | 96 ++++++++++++ 10 files changed, 288 insertions(+), 66 deletions(-) create mode 100644 StrataTest/DDM/UnwrapSimple.lean diff --git a/Strata/DDM/AST.lean b/Strata/DDM/AST.lean index 42d5da6c37..112833153a 100644 --- a/Strata/DDM/AST.lean +++ b/Strata/DDM/AST.lean @@ -601,7 +601,8 @@ inductive SyntaxDefAtom -- Surround with parenthesis if the precedence of the argument is less than `prec`. -- Note. If `prec` is zero, then parenthesis will never be added (even with pp.parens is true). -- This is to avoid parens in categories that do not support them. -| ident (level : Nat) (prec : Nat) +-- The unwrap parameter specifies if the value should be unwrapped to a raw type. +| ident (level : Nat) (prec : Nat) (unwrap : Bool := false) | str (lit : String) | indent (n : Nat) (args : Array SyntaxDefAtom) deriving BEq, Inhabited, Repr diff --git a/Strata/DDM/BuiltinDialects/StrataDDL.lean b/Strata/DDM/BuiltinDialects/StrataDDL.lean index d9e80a0e30..dac3422156 100644 --- a/Strata/DDM/BuiltinDialects/StrataDDL.lean +++ b/Strata/DDM/BuiltinDialects/StrataDDL.lean @@ -151,6 +151,7 @@ def StrataDDL : Dialect := BuiltinM.create! "StrataDDL" #[initDialect] do declareMetadata { name := "rightassoc", args := #[] } declareMetadata { name := "scope", args := #[.mk "scope" .ident] } + declareMetadata { name := "unwrap", args := #[] } declareMetadata { name := "declareType", args := #[.mk "name" .ident, .mk "args" (.opt .ident)] } declareMetadata { name := "aliasType", args := #[.mk "name" .ident, .mk "args" (.opt .ident), .mk "def" .ident] } declareMetadata { name := "declare", args := #[.mk "name" .ident, .mk "type" .ident] } diff --git a/Strata/DDM/Elab/Core.lean b/Strata/DDM/Elab/Core.lean index 822f6a1321..be85629d8b 100644 --- a/Strata/DDM/Elab/Core.lean +++ b/Strata/DDM/Elab/Core.lean @@ -895,6 +895,21 @@ def getSyntaxArgs (stx : Syntax) (ident : QualifiedIdent) (expected : Nat) : Ela return default return ⟨stxArgs, stxArgP⟩ +/-- +Unwrap a tree to a raw Arg based on the unwrap specification. +-/ +def unwrapTree (tree : Tree) (unwrap : Bool) : Arg := + if !unwrap then + tree.arg + else + match tree.info with + | .ofNumInfo info => .num info.loc info.val + | .ofIdentInfo info => .ident info.loc info.val + | .ofStrlitInfo info => .strlit info.loc info.val + | .ofDecimalInfo info => .decimal info.loc info.val + | .ofBytesInfo info => .bytes info.loc info.val + | _ => tree.arg -- Fallback for non-unwrappable types + mutual partial def elabOperation (tctx : TypingContext) (stx : Syntax) : ElabM Tree := do @@ -921,7 +936,11 @@ partial def elabOperation (tctx : TypingContext) (stx : Syntax) : ElabM Tree := return default let resultCtx ← decl.newBindings.foldlM (init := newCtx) <| fun ctx spec => do ctx.push <$> evalBindingSpec loc initSize spec args - let op : Operation := { ann := loc, name := i, args := args.toArray.map (·.arg) } + -- Apply unwrapping based on unwrapSpecs + let unwrappedArgs := args.toArray.mapIdx fun idx tree => + let unwrap := se.unwrapSpecs.getD idx false + unwrapTree tree unwrap + let op : Operation := { ann := loc, name := i, args := unwrappedArgs } if loc.isNone then return panic! s!"Missing position info {repr stx}." let info : OperationInfo := { loc := loc, inputCtx := tctx, op, resultCtx } diff --git a/Strata/DDM/Elab/SyntaxElab.lean b/Strata/DDM/Elab/SyntaxElab.lean index c6e8a65158..eeb5798bbd 100644 --- a/Strata/DDM/Elab/SyntaxElab.lean +++ b/Strata/DDM/Elab/SyntaxElab.lean @@ -20,6 +20,8 @@ structure ArgElaborator where argLevel : Nat -- Index of argument to use for typing context (if specified, must be less than argIndex) contextLevel : Option (Fin argLevel) := .none + -- Whether to unwrap this argument + unwrap : Bool := false deriving Inhabited, Repr abbrev ArgElaboratorArray (sc : Nat) := @@ -59,13 +61,28 @@ def push (as : ArgElaborators) have scp : sc < sc + 1 := by grind { as with argElaborators := as.argElaborators.push ⟨newElab, scp⟩ } +def pushWithUnwrap (as : ArgElaborators) + (argDecls : ArgDecls) + (argLevel : Fin argDecls.size) + (unwrap : Bool) : ArgElaborators := + let sc := as.syntaxCount + let as := as.inc + let newElab : ArgElaborator := { + syntaxLevel := sc + argLevel := argLevel.val + contextLevel := argDecls.argScopeLevel argLevel + unwrap := unwrap + } + have scp : sc < sc + 1 := by grind + { as with argElaborators := as.argElaborators.push ⟨newElab, scp⟩ } + end ArgElaborators def addElaborators (argDecls : ArgDecls) (p : ArgElaborators) (a : SyntaxDefAtom) : ArgElaborators := match a with - | .ident level _prec => + | .ident level _prec unwrap => if h : level < argDecls.size then - p.push argDecls ⟨level, h⟩ + p.pushWithUnwrap argDecls ⟨level, h⟩ unwrap else panic! "Invalid index" | .str s => @@ -82,6 +99,8 @@ structure SyntaxElaborator where syntaxCount : Nat argElaborators : ArgElaboratorArray syntaxCount resultScope : Option Nat + /-- Unwrap specifications for each argument (indexed by argLevel) -/ + unwrapSpecs : Array Bool := #[] deriving Inhabited, Repr def mkSyntaxElab (argDecls : ArgDecls) (stx : SyntaxDef) (opMd : Metadata) : SyntaxElaborator := @@ -94,10 +113,15 @@ def mkSyntaxElab (argDecls : ArgDecls) (stx : SyntaxDef) (opMd : Metadata) : Syn -- syntax argument with the empty string. let as := if as.syntaxCount = 0 then as.inc else as let elabs := as.argElaborators.qsort (·.val.argLevel < ·.val.argLevel) + -- Build unwrapSpecs array indexed by argLevel + let unwrapSpecs := Array.replicate argDecls.size false + let unwrapSpecs := elabs.foldl (init := unwrapSpecs) fun arr ⟨ae, _⟩ => + arr.set! ae.argLevel ae.unwrap { syntaxCount := as.syntaxCount argElaborators := elabs resultScope := opMd.resultLevel argDecls.size + unwrapSpecs := unwrapSpecs } def opDeclElaborator (decl : OpDecl) : SyntaxElaborator := diff --git a/Strata/DDM/Format.lean b/Strata/DDM/Format.lean index c8f8451294..50f037d3c2 100644 --- a/Strata/DDM/Format.lean +++ b/Strata/DDM/Format.lean @@ -262,7 +262,7 @@ This pretty prints the argument an op atom has. -/ private def SyntaxDefAtom.formatArgs (opts : FormatOptions) (args : Array PrecFormat) (stx : SyntaxDefAtom) : Format := match stx with - | .ident lvl prec => + | .ident lvl prec _ => let ⟨r, innerPrec⟩ := args[lvl]! if prec > 0 ∧ (innerPrec ≤ prec ∨ opts.alwaysParen) then f!"({r})" @@ -481,7 +481,7 @@ end ArgDecls namespace SyntaxDefAtom protected def mformat : SyntaxDefAtom → StrataFormat -| .ident lvl prec => mf!"{StrataFormat.lvlVar lvl}:{prec}" -- FIXME. This may be wrong. +| .ident lvl prec _ => mf!"{StrataFormat.lvlVar lvl}:{prec}" -- FIXME. This may be wrong. | .str lit => mformat (escapeStringLit lit) | .indent n f => let r := f.attach.map fun ⟨a, _⟩ => a.mformat diff --git a/Strata/DDM/Integration/Lean/Gen.lean b/Strata/DDM/Integration/Lean/Gen.lean index 455b3b2bc8..080e8ad48e 100644 --- a/Strata/DDM/Integration/Lean/Gen.lean +++ b/Strata/DDM/Integration/Lean/Gen.lean @@ -154,6 +154,14 @@ def specialCategories : Std.HashSet CategoryName := { q`Init.TypeP } +/-- +Argument declaration for code generation. +-/ +structure GenArgDecl where + name : String + cat : SyntaxCat + unwrap : Bool := false + /-- A constructor in a generated datatype. @@ -171,7 +179,7 @@ structure DefaultCtor where this must be an auto generated constructor. -/ strataName : Option QualifiedIdent - argDecls : Array (String × SyntaxCat) + argDecls : Array GenArgDecl def DefaultCtor.leanName (c : DefaultCtor) : Name := .str .anonymous c.leanNameStr @@ -180,7 +188,7 @@ An operation at the category level. -/ structure CatOp where name : QualifiedIdent - argDecls : Array (String × SyntaxCat) + argDecls : Array GenArgDecl namespace CatOp @@ -190,7 +198,7 @@ partial def checkCat (op : QualifiedIdent) (c : SyntaxCat) : Except String Unit if f ∈ forbiddenCategories then throw s!"{op.fullName} refers to unsupported category {f.fullName}." -def ofArgDecl (op : QualifiedIdent) (d : ArgDecl) : Except String (String × SyntaxCat) := do +def ofArgDecl (op : QualifiedIdent) (d : ArgDecl) : Except String GenArgDecl := do let cat ← match d.kind with | .type tp => @@ -198,7 +206,9 @@ def ofArgDecl (op : QualifiedIdent) (d : ArgDecl) : Except String (String × Syn | .cat c => checkCat op c pure c - pure ⟨d.ident, cat⟩ + -- Check if unwrap metadata is present + let unwrap := q`StrataDDL.unwrap ∈ d.metadata + pure { name := d.ident, cat, unwrap } def ofOpDecl (d : DialectName) (o : OpDecl) : Except String CatOp := do let name := ⟨d, o.name⟩ @@ -207,7 +217,7 @@ def ofOpDecl (d : DialectName) (o : OpDecl) : Except String CatOp := do def ofTypeDecl (d : DialectName) (o : TypeDecl) : CatOp := { name := ⟨d, o.name⟩ - argDecls := o.argNames |>.map fun anm => ⟨anm.val, .atom .none q`Init.Type⟩ + argDecls := o.argNames |>.map fun anm => { name := anm.val, cat := .atom .none q`Init.Type } } def ofFunctionDecl (d : DialectName) (o : FunctionDecl) : Except String CatOp := do @@ -374,7 +384,7 @@ partial def mkUsedCategories.aux (m : CatOpMap) (s : WorkSet CategoryName) : Cat | _ => let ops := m.getD c #[] let addArgs {α:Type} (f : α → CategoryName → α) (a : α) (op : CatOp) := - op.argDecls.foldl (init := a) fun r (_, c) => c.foldOverAtomicCategories (init := r) f + op.argDecls.foldl (init := a) fun r arg => arg.cat.foldOverAtomicCategories (init := r) f let addName (pa : WorkSet CategoryName) (c : CategoryName) := pa.add c let s := ops.foldl (init := s) (addArgs addName) mkUsedCategories.aux m s @@ -402,11 +412,11 @@ def mkStandardCtors (exprHasEta : Bool) (cat : QualifiedIdent) : Array DefaultCt | q`Init.Expr => if exprHasEta then #[ - .mk "bvar" none #[("idx", .atom .none q`Init.Num)], + .mk "bvar" none #[{ name := "idx", cat := .atom .none q`Init.Num }], .mk "lambda" none #[ - ("var", .atom .none q`Init.Str), - ("type", .atom .none q`Init.Type), - ("fn", .atom .none cat) + { name := "var", cat := .atom .none q`Init.Str }, + { name := "type", cat := .atom .none q`Init.Type }, + { name := "fn", cat := .atom .none cat } ] ] else @@ -490,8 +500,8 @@ def orderedSyncatGroups (categories : Array (QualifiedIdent × Array DefaultCtor g.addEdge typeIdx resIdx | _ => ops.foldl (init := g) fun g op => - op.argDecls.foldl (init := g) fun g (_, c) => - addArgIndices cat op.leanNameStr c g resIdx + op.argDecls.foldl (init := g) fun g arg => + addArgIndices cat op.leanNameStr arg.cat g resIdx let indices := OutGraph.tarjan g indices.map (·.map (categories[·])) @@ -551,8 +561,8 @@ def getCategoryTerm (cat : QualifiedIdent) (annType : Ident) : GenM Term := do def getCategoryOpIdent (cat : QualifiedIdent) (name : Name) : GenM Ident := do currScopedIdent <| (← getCategoryScopedName cat) ++ name -partial def ppCat (annType : Ident) (c : SyntaxCat) : GenM Term := do - let args ← c.args.mapM (ppCat annType) +partial def ppCatWithUnwrap (annType : Ident) (c : SyntaxCat) (unwrap : Bool) : GenM Term := do + let args ← c.args.mapM (ppCatWithUnwrap annType · false) match c.name, eq : args.size with | q`Init.CommaSepBy, 1 => return mkCApp ``Ann #[mkCApp ``Array #[args[0]], annType] @@ -563,11 +573,18 @@ partial def ppCat (annType : Ident) (c : SyntaxCat) : GenM Term := do | cat, 0 => match declaredCategories[cat]? with | some nm => - pure <| mkCApp ``Ann #[mkRootIdent nm, annType] + -- Check if unwrap is specified + if unwrap && cat ∈ declaredCategories then + pure <| mkRootIdent nm -- Return unwrapped type + else + pure <| mkCApp ``Ann #[mkRootIdent nm, annType] | none => do getCategoryTerm cat annType | f, _ => throwError "Unsupported {f.fullName}" +partial def ppCat (annType : Ident) (c : SyntaxCat) : GenM Term := do + ppCatWithUnwrap annType c false + def elabCommands (commands : Array Command) : CommandElabM Unit := do let messageCount := (← get).messages.unreported.size match p : commands.size with @@ -603,8 +620,8 @@ def explicitBinder (name : String) (typeStx : Term) : CommandElabM BracketedBind def genCtor (annType : Ident) (op : DefaultCtor) : GenM (TSyntax ``ctor) := do let ctorId : Ident := localIdent op.leanNameStr - let binders ← op.argDecls.mapM fun (name, tp) => do - explicitBinder name (← ppCat annType tp) + let binders ← op.argDecls.mapM fun arg => do + explicitBinder arg.name (← ppCatWithUnwrap annType arg.cat arg.unwrap) `(ctor| | $ctorId:ident (ann : $annType) $binders:bracketedBinder* ) def mkInductive (cat : QualifiedIdent) (ctors : Array DefaultCtor) : GenM Command := do @@ -656,22 +673,42 @@ def mkAnnWithTerm (argCtor : Name) (annTerm v : Term) : Term := def annToAst (argCtor : Name) (annTerm : Term) : Term := mkCApp argCtor #[mkCApp ``Ann.ann #[annTerm], mkCApp ``Ann.val #[annTerm]] +mutual + partial def toAstApplyArg (vn : Name) (cat : SyntaxCat) : GenM Term := do + toAstApplyArgWithUnwrap vn cat false + +partial def toAstApplyArgWithUnwrap (vn : Name) (cat : SyntaxCat) (unwrap : Bool) : GenM Term := do let v := mkIdentFrom (←read).src vn match cat.name with - | q`Init.Expr => do - let toAst ← toAstIdentM cat.name - return mkCApp ``ArgF.expr #[mkApp toAst #[v]] - | q`Init.Ident => - return annToAst ``ArgF.ident v | q`Init.Num => - return annToAst ``ArgF.num v - | q`Init.Decimal => - return annToAst ``ArgF.decimal v + if unwrap then + ``(ArgF.num default $v) + else + return annToAst ``ArgF.num v + | q`Init.Ident => + if unwrap then + ``(ArgF.ident default $v) + else + return annToAst ``ArgF.ident v | q`Init.Str => - return annToAst ``ArgF.strlit v + if unwrap then + ``(ArgF.strlit default $v) + else + return annToAst ``ArgF.strlit v + | q`Init.Decimal => + if unwrap then + ``(ArgF.decimal default $v) + else + return annToAst ``ArgF.decimal v | q`Init.ByteArray => - return annToAst ``ArgF.bytes v + if unwrap then + ``(ArgF.bytes default $v) + else + return annToAst ``ArgF.bytes v + | cid@q`Init.Expr => do + let toAst ← toAstIdentM cid + return mkCApp ``ArgF.expr #[mkApp toAst #[v]] | q`Init.Type => do let toAst ← toAstIdentM cat.name ``(ArgF.type ($toAst $v)) @@ -716,6 +753,8 @@ partial def toAstApplyArg (vn : Name) (cat : SyntaxCat) : GenM Term := do let toAst ← toAstIdentM qid ``(ArgF.op ($toAst $v)) +end + abbrev MatchAlt := TSyntax ``Lean.Parser.Term.matchAlt def toAstBuiltinMatches (cat : QualifiedIdent) : GenM (Array MatchAlt) := do @@ -748,8 +787,8 @@ def toAstMatch (cat : QualifiedIdent) (op : DefaultCtor) : GenM MatchAlt := do let argDecls := op.argDecls let (annC, annI) ← genFreshIdentPair "ann" let ctor : Ident ← getCategoryOpIdent cat op.leanName - let args : Array (Name × SyntaxCat) ← argDecls.mapM fun (nm, c) => - return (← genFreshLeanName nm, c) + let args ← argDecls.mapM fun arg => do + return (← genFreshLeanName arg.name, arg.cat, arg.unwrap) let argTerms : Array Term := args.map fun p => mkCanIdent src p.fst let pat : Term ← ``($ctor $annC $argTerms:term*) let rhs : Term ← @@ -759,14 +798,14 @@ def toAstMatch (cat : QualifiedIdent) (op : DefaultCtor) : GenM MatchAlt := do let some nm := op.strataName | return panic! s!"Unexpected builtin expression {lname}" let init := mkCApp ``ExprF.fn #[annI, quote nm] - args.foldlM (init := init) fun a (nm, tp) => do - let e ← toAstApplyArg nm tp + args.foldlM (init := init) fun a (nm, tp, unwrap) => do + let e ← toAstApplyArgWithUnwrap nm tp unwrap return Lean.Syntax.mkCApp ``ExprF.app #[annI, a, e] | q`Init.Type => do let some nm := op.strataName | return panic! "Expected type name" let toAst ← toAstIdentM cat - let argTerms ← arrayLit <| args.map fun (v, c) => + let argTerms ← arrayLit <| args.map fun (v, c, _unwrap) => assert! c.isType Lean.Syntax.mkApp toAst #[mkIdentFrom src v] pure <| Lean.Syntax.mkCApp ``TypeExprF.ident #[annI, quote nm, argTerms] @@ -775,7 +814,7 @@ def toAstMatch (cat : QualifiedIdent) (op : DefaultCtor) : GenM MatchAlt := do match op.strataName with | some n => pure n | none => throwError s!"Internal: Operation requires strata name" - let argTerms : Array Term ← args.mapM fun (nm, tp) => toAstApplyArg nm tp + let argTerms : Array Term ← args.mapM fun (nm, tp, unwrap) => toAstApplyArgWithUnwrap nm tp unwrap pure <| mkCApp ``OperationF.mk #[annI, quote mName, ← arrayLit argTerms] `(matchAltExpr| | $pat => $rhs) @@ -792,22 +831,52 @@ def genToAst (cat : QualifiedIdent) (ops : Array DefaultCtor) : GenM Command := `(partial def $toAst {$annType : Type} [Inhabited $annType] ($(mkCanIdent src v) : $catTerm) : $astType := match $(mkIdentFrom src v):ident with $cases:matchAlt*) +mutual + partial def getOfIdentArg (varName : String) (cat : SyntaxCat) (e : Term) : GenM Term := do + getOfIdentArgWithUnwrap varName cat false e + +partial def getOfIdentArgWithUnwrap (varName : String) (cat : SyntaxCat) (unwrap : Bool) (e : Term) : GenM Term := do match cat.name with + | q`Init.Num => + if unwrap then + ``((fun arg => match arg with + | ArgF.num _ val => pure val + | a => OfAstM.throwExpected "numeric literal" a) $e) + else + ``(OfAstM.ofNumM $e) + | q`Init.Ident => + if unwrap then + ``((fun arg => match arg with + | ArgF.ident _ val => pure val + | a => OfAstM.throwExpected "identifier" a) $e) + else + ``(OfAstM.ofIdentM $e) + | q`Init.Str => + if unwrap then + ``((fun arg => match arg with + | ArgF.strlit _ val => pure val + | a => OfAstM.throwExpected "string literal" a) $e) + else + ``(OfAstM.ofStrlitM $e) + | q`Init.Decimal => + if unwrap then + ``((fun arg => match arg with + | ArgF.decimal _ val => pure val + | a => OfAstM.throwExpected "decimal literal" a) $e) + else + ``(OfAstM.ofDecimalM $e) + | q`Init.ByteArray => + if unwrap then + ``((fun arg => match arg with + | ArgF.bytes _ val => pure val + | a => OfAstM.throwExpected "byte array" a) $e) + else + ``(OfAstM.ofBytesM $e) | cid@q`Init.Expr => do let (vc, vi) ← genFreshIdentPair <| varName ++ "_inner" let ofAst ← ofAstIdentM cid ``(OfAstM.ofExpressionM $e fun $vc _ => $ofAst $vi) - | q`Init.Ident => do - ``(OfAstM.ofIdentM $e) - | q`Init.Num => do - ``(OfAstM.ofNumM $e) - | q`Init.Decimal => do - ``(OfAstM.ofDecimalM $e) - | q`Init.Str => do - ``(OfAstM.ofStrlitM $e) - | q`Init.ByteArray => do - ``(OfAstM.ofBytesM $e) | cid@q`Init.Type => do let (vc, vi) ← genFreshIdentPair varName let ofAst ← ofAstIdentM cid @@ -836,13 +905,15 @@ partial def getOfIdentArg (varName : String) (cat : SyntaxCat) (e : Term) : GenM let ofAst ← ofAstIdentM cid ``(OfAstM.ofOperationM $e fun $vc _ => $ofAst $vi) -def ofAstArgs (argDecls : Array (String × SyntaxCat)) (argsVar : Ident) : GenM (Array Ident × Array (TSyntax ``doSeqItem)) := do +end + +def ofAstArgs (argDecls : Array GenArgDecl) (argsVar : Ident) : GenM (Array Ident × Array (TSyntax ``doSeqItem)) := do let argCount := argDecls.size let args ← Array.ofFnM (n := argCount) fun ⟨i, _isLt⟩ => do - let (vnm, c) := argDecls[i] - let (vc, vi) ← genFreshIdentPair <| vnm ++ "_bind" + let arg := argDecls[i] + let (vc, vi) ← genFreshIdentPair <| arg.name ++ "_bind" let av ← ``($argsVar[$(quote i)]) - let rhs ← getOfIdentArg vnm c av + let rhs ← getOfIdentArgWithUnwrap arg.name arg.cat arg.unwrap av let stmt ← `(doSeqItem| let $vc ← $rhs:term) return (vi, stmt) return args.unzip @@ -872,12 +943,12 @@ def ofAstExprMatch (nameIndexMap : Std.HashMap QualifiedIdent Nat) let rhs ← ofAstExprMatchRhs cat annI argsVar op ofAstMatch nameIndexMap op rhs -def ofAstTypeArgs (argDecls : Array (String × SyntaxCat)) (argsVar : Ident) : GenM (Array Ident × Array (TSyntax ``doSeqItem)) := do +def ofAstTypeArgs (argDecls : Array GenArgDecl) (argsVar : Ident) : GenM (Array Ident × Array (TSyntax ``doSeqItem)) := do let argCount := argDecls.size let ofAst ← ofAstIdentM q`Init.Type let args ← Array.ofFnM (n := argCount) fun ⟨i, _isLt⟩ => do - let (vnm, _) := argDecls[i] - let v ← genFreshLeanName vnm + let arg := argDecls[i] + let v ← genFreshLeanName arg.name let src := (←read).src let rhs ← ``($ofAst $argsVar[$(quote i)]) let stmt ← `(doSeqItem| let $(mkIdentFrom src v true) ← $rhs:term) @@ -1004,8 +1075,8 @@ def checkInhabited (cat : QualifiedIdent) (ops : Array DefaultCtor) : StateT Inh let catTerm ← getCategoryTerm cat annType for op in ops do let inhabited ← get - let isInhabited := op.argDecls.all fun (_, c) => - match c.name with + let isInhabited := op.argDecls.all fun arg => + match arg.cat.name with | q`Init.Seq => true | q`Init.CommaSepBy => true | q`Init.Option => true diff --git a/Strata/DDM/Integration/Lean/ToExpr.lean b/Strata/DDM/Integration/Lean/ToExpr.lean index 28a5f46959..f216098d1d 100644 --- a/Strata/DDM/Integration/Lean/ToExpr.lean +++ b/Strata/DDM/Integration/Lean/ToExpr.lean @@ -277,7 +277,7 @@ namespace SyntaxDefAtom protected def typeExpr : Lean.Expr := mkConst ``SyntaxDefAtom protected def toExpr : SyntaxDefAtom → Lean.Expr -| .ident v p => astExpr! ident (toExpr v) (toExpr p) +| .ident v p unwrap => astExpr! ident (toExpr v) (toExpr p) (toExpr unwrap) | .str l => astExpr! str (toExpr l) | .indent n a => let args := arrayToExpr .zero SyntaxDefAtom.typeExpr (a.map (·.toExpr)) diff --git a/Strata/DDM/Ion.lean b/Strata/DDM/Ion.lean index 8f8c043b3a..45d9ea44e2 100644 --- a/Strata/DDM/Ion.lean +++ b/Strata/DDM/Ion.lean @@ -652,8 +652,8 @@ namespace SyntaxDefAtom protected def toIon (refs : SymbolIdCache) (a : SyntaxDefAtom) : InternM (Ion SymbolId) := ionScope! SyntaxDefAtom refs : match a with - | .ident idx prec => - return .sexp #[ .symbol ionSymbol! "ident", .int idx, .int prec ] + | .ident idx prec unwrap => + return .sexp #[ .symbol ionSymbol! "ident", .int idx, .int prec, .bool unwrap ] | .str v => return .string v | .indent n args => @@ -670,9 +670,19 @@ protected def fromIon (v : Ion SymbolId) : FromIonM SyntaxDefAtom := do | .sexp args argsp => match ← .asSymbolString "SyntaxDefAtom kind" args[0] with | "ident" => do - let ⟨p⟩ ← .checkArgCount "ident" args 3 - .ident <$> .asNat "SyntaxDef ident level" args[1] - <*> .asNat "SyntaxDef ident prec" args[2] + -- Support both formats: 3 args (without unwrap) and 4 args (with unwrap spec) + if args.size = 3 then + let level ← .asNat "SyntaxDef ident level" args[1]! + let prec ← .asNat "SyntaxDef ident prec" args[2]! + return .ident level prec false + else + let ⟨p⟩ ← .checkArgCount "ident" args 4 + let level ← .asNat "SyntaxDef ident level" args[1]! + let prec ← .asNat "SyntaxDef ident prec" args[2]! + let unwrap ← match args[3]! with + | .bool b => pure b + | _ => throw "Expected boolean for unwrap" + return .ident level prec unwrap | "indent" => do .indent <$> .asNat "SyntaxDef indent value" args[1]! <*> args.attach.mapM_off (start := 2) fun ⟨u, _⟩ => diff --git a/Strata/DDM/Parser.lean b/Strata/DDM/Parser.lean index 2d3ebc21a8..4f10e46362 100644 --- a/Strata/DDM/Parser.lean +++ b/Strata/DDM/Parser.lean @@ -696,7 +696,7 @@ def checkLeftRec (thisCatName : QualifiedIdent) (argDecls : ArgDecls) (as : List checkLeftRec thisCatName argDecls (as.toList ++ bs) | .str _ :: _ => .isLeading as - | .ident v argPrec :: rest => Id.run do + | .ident v argPrec _ :: rest => Id.run do let .isTrue lt := inferInstanceAs (Decidable (v < argDecls.size)) | return panic! "Invalid index" let cat := argDecls[v].kind.categoryOf @@ -815,7 +815,7 @@ the first symbol. -/ private def prependSyntaxDefAtomParser (ctx : ParsingContext) (argDecls : ArgDecls) (o : SyntaxDefAtom) (r : Parser) : Parser := match o with - | .ident v prec => Id.run do + | .ident v prec _ => Id.run do let .isTrue lt := inferInstanceAs (Decidable (v < argDecls.size)) | return panic! s!"Invalid ident index {v} in bindings {eformat argDecls}" let addParser (p : Parser) := diff --git a/StrataTest/DDM/UnwrapSimple.lean b/StrataTest/DDM/UnwrapSimple.lean new file mode 100644 index 0000000000..f756fafbd0 --- /dev/null +++ b/StrataTest/DDM/UnwrapSimple.lean @@ -0,0 +1,96 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Strata.DDM.Integration.Lean + +open Strata + +#dialect +dialect TestUnwrap; + +category Expression; + +op var (name : Ident) : Expression => name; +op index (@[unwrap] id : Num) : Expression => id; +op index_nounwrap (id : Num) : Expression => id; +op name (@[unwrap] n : Ident) : Expression => n; +op text (@[unwrap] s : Str) : Expression => s; +op decimal_val (@[unwrap] d : Decimal) : Expression => d; +op bytes_val (@[unwrap] b : ByteArray) : Expression => b; + +#end + +namespace TestUnwrap + +#strata_gen TestUnwrap + +end TestUnwrap + +/-- +info: TestUnwrap.Expression (α : Type) : Type +-/ +#guard_msgs in +#check TestUnwrap.Expression + +/-- +info: TestUnwrap.Expression.var {α : Type} : α → (name : Ann String α) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.var + +/-- +info: TestUnwrap.Expression.index {α : Type} : α → (id : Nat) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.index + +/-- +info: TestUnwrap.Expression.index_nounwrap {α : Type} : α → (id : Ann Nat α) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.index_nounwrap + +/-- +info: TestUnwrap.Expression.name {α : Type} : α → (n : String) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.name + +/-- +info: TestUnwrap.Expression.text {α : Type} : α → (s : String) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.text + +/-- +info: TestUnwrap.Expression.decimal_val {α : Type} : α → (d : Decimal) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.decimal_val + +/-- +info: TestUnwrap.Expression.bytes_val {α : Type} : α → (b : ByteArray) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.bytes_val + +-- Verify that index uses unwrapped Nat (not Ann Nat α) +example : TestUnwrap.Expression Unit := .index () 42 + +-- Verify that index_nounwrap uses wrapped Ann Nat +example : TestUnwrap.Expression Unit := .index_nounwrap () ⟨(), 42⟩ + +-- Verify that name uses unwrapped String +example : TestUnwrap.Expression Unit := .name () "foo" + +-- Verify that text uses unwrapped String +example : TestUnwrap.Expression Unit := .text () "bar" + +-- Verify that decimal_val uses unwrapped Decimal +example : TestUnwrap.Expression Unit := .decimal_val () { mantissa := 123, exponent := -2 } + +-- Verify that bytes_val uses unwrapped ByteArray +example : TestUnwrap.Expression Unit := .bytes_val () (ByteArray.mk #[0x48, 0x69]) From c27615e32f9e0b84d0b06952665f607d91356d57 Mon Sep 17 00:00:00 2001 From: Siva Somayyajula Date: Tue, 16 Dec 2025 13:19:03 -0500 Subject: [PATCH 47/68] Turn Strata Python bindings into native namespace package (#276) *Description of changes:* This change removes `__init__.py` and refactors the imports in the Strata Python bindings package accordingly so that it is exposed as a [native namespace package](https://packaging.python.org/en/latest/guides/packaging-namespace-packages/#native-namespace-packages). Consequently, other Python packages can be added to the `strata` namespace outside of the Strata repository. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Tools/Python/strata/__init__.py | 5 ----- Tools/Python/strata/gen.py | 4 ++-- Tools/Python/strata/pythonast.py | 4 ++-- 3 files changed, 4 insertions(+), 9 deletions(-) delete mode 100644 Tools/Python/strata/__init__.py diff --git a/Tools/Python/strata/__init__.py b/Tools/Python/strata/__init__.py deleted file mode 100644 index 0ef471a43b..0000000000 --- a/Tools/Python/strata/__init__.py +++ /dev/null @@ -1,5 +0,0 @@ -# Copyright Strata Contributors -# -# SPDX-License-Identifier: Apache-2.0 OR MIT - -from strata.base import * diff --git a/Tools/Python/strata/gen.py b/Tools/Python/strata/gen.py index beb89c4841..6916f4b52e 100755 --- a/Tools/Python/strata/gen.py +++ b/Tools/Python/strata/gen.py @@ -9,7 +9,7 @@ import amazon.ion.simpleion as ion import argparse from pathlib import Path -from strata import Program +from strata.base import Program import strata.pythonast as pythonast import sys @@ -94,4 +94,4 @@ def main(): parser.print_help() if __name__ == '__main__': - main() \ No newline at end of file + main() diff --git a/Tools/Python/strata/pythonast.py b/Tools/Python/strata/pythonast.py index eeed136a20..9904095585 100644 --- a/Tools/Python/strata/pythonast.py +++ b/Tools/Python/strata/pythonast.py @@ -10,7 +10,7 @@ from os import PathLike import typing import types -import strata +import strata.base as strata from .base import ArgDecl, FileMapping, Init, SourceRange, SyntaxCat, reserved @dataclass @@ -237,4 +237,4 @@ def parse_module(source : bytes, filename : str | PathLike = "") -> tup p = strata.Program(PythonAST) p.add(ast_to_op(m, a)) - return (m, p) \ No newline at end of file + return (m, p) From 52c0eb01dcfb2f65a9dd84bcb2e1b53338dd22b3 Mon Sep 17 00:00:00 2001 From: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Date: Tue, 16 Dec 2025 14:02:17 -0600 Subject: [PATCH 48/68] Support for classes (#270) Support for classes. More precise support of datetime. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Juneyoung Lee --- Strata/Languages/Boogie/Verifier.lean | 1 + Strata/Languages/Python/BoogiePrelude.lean | 51 +- .../Languages/Python/FunctionSignatures.lean | 14 +- Strata/Languages/Python/PythonToBoogie.lean | 538 ++++++++++++------ .../Python/expected/test_datetime.expected | 6 +- .../Languages/Python/tests/test_datetime.py | 29 +- 6 files changed, 449 insertions(+), 190 deletions(-) diff --git a/Strata/Languages/Boogie/Verifier.lean b/Strata/Languages/Boogie/Verifier.lean index 3c1eea16ab..87ad931603 100644 --- a/Strata/Languages/Boogie/Verifier.lean +++ b/Strata/Languages/Boogie/Verifier.lean @@ -251,6 +251,7 @@ def verifySingleEnv (smtsolver : String) (pE : Program × Env) (options : Option let cg := Program.toFunctionCG p let fns := obligation.obligation.getOps.map BoogieIdent.toPretty let relevant_fns := (fns ++ (CallGraph.getAllCalleesClosure cg fns)).dedup + let irrelevant_axs := Program.getIrrelevantAxioms p relevant_fns let new_assumptions := Imperative.PathConditions.removeByNames obligation.assumptions irrelevant_axs { obligation with assumptions := new_assumptions } diff --git a/Strata/Languages/Python/BoogiePrelude.lean b/Strata/Languages/Python/BoogiePrelude.lean index b185fb9532..80715e2b84 100644 --- a/Strata/Languages/Python/BoogiePrelude.lean +++ b/Strata/Languages/Python/BoogiePrelude.lean @@ -192,13 +192,13 @@ function IntOrNone_int_val(v : IntOrNone) : int; function IntOrNone_none_val(v : IntOrNone) : None; function IntOrNone_mk_int(i : int) : IntOrNone; function IntOrNone_mk_none(v : None) : IntOrNone; -axiom (forall i : int :: {(IntOrNone_mk_int(i))} +axiom [IntOrNone_mk_int_axiom]: (forall i : int :: {(IntOrNone_mk_int(i))} IntOrNone_tag(IntOrNone_mk_int(i)) == IN_INT_TAG && IntOrNone_int_val(IntOrNone_mk_int(i)) == i); -axiom (forall n : None :: {(IntOrNone_mk_none(n))} +axiom [IntOrNone_mk_none_axiom]: (forall n : None :: {(IntOrNone_mk_none(n))} IntOrNone_tag(IntOrNone_mk_none(n)) == IN_NONE_TAG && IntOrNone_none_val(IntOrNone_mk_none(n)) == n); -axiom (forall v : IntOrNone :: {IntOrNone_tag(v)} +axiom [IntOrNone_tag_axiom]: (forall v : IntOrNone :: {IntOrNone_tag(v)} IntOrNone_tag(v) == IN_INT_TAG || IntOrNone_tag(v) == IN_NONE_TAG); axiom [unique_IntOrNoneTag]: IN_INT_TAG != IN_NONE_TAG; @@ -332,6 +332,9 @@ function BytesOrStrOrNone_mk_str(s : string) : (BytesOrStrOrNone); type DictStrAny; function DictStrAny_mk(s : string) : (DictStrAny); +type ListDictStrAny; +function ListDictStrAny_nil() : (ListDictStrAny); + type Client; type ClientTag; const C_S3_TAG : ClientTag; @@ -366,13 +369,20 @@ axiom [unique_BoolOrStrOrNoneTag]: BSN_BOOL_TAG != BSN_STR_TAG && BSN_BOOL_TAG ! // milliseconds is simply used. See Timedelta_mk. -procedure timedelta(days: int) returns (delta : int, maybe_except: ExceptOrNone) +procedure timedelta(days: IntOrNone, hours: IntOrNone) returns (delta : int, maybe_except: ExceptOrNone) spec{ - free ensures [ensure_timedelta_sign_matches]: (delta == (days * 3600 * 24)); } { havoc delta; - assume [assume_timedelta_sign_matches]: (delta == (days * 3600 * 24)); + var days_i : int := 0; + if (IntOrNone_tag(days) == IN_INT_TAG) { + days_i := IntOrNone_int_val(days); + } + var hours_i : int := 0; + if (IntOrNone_tag(hours) == IN_INT_TAG) { + days_i := IntOrNone_int_val(hours); + } + assume [assume_timedelta_sign_matches]: (delta == (((days_i * 24) + hours_i) * 3600) * 1000000); }; function Timedelta_mk(days : int, seconds : int, microseconds : int): int { @@ -421,6 +431,15 @@ spec { assume [assume_datetime_now]: (Datetime_get_timedelta(d) == Timedelta_mk(0,0,0)); }; +procedure datetime_utcnow() returns (d:Datetime, maybe_except: ExceptOrNone) +spec { + ensures (Datetime_get_timedelta(d) == Timedelta_mk(0,0,0)); +} +{ + havoc d; + assume [assume_datetime_now]: (Datetime_get_timedelta(d) == Timedelta_mk(0,0,0)); +}; + // Addition/subtraction of Datetime and Timedelta. function Datetime_add(d:Datetime, timedelta:int):Datetime; function Datetime_sub(d:Datetime, timedelta:int):Datetime { @@ -449,13 +468,20 @@ procedure datetime_date(dt: Datetime) returns (d : Datetime, maybe_except: Excep spec{} {havoc d;}; +function datetime_to_str(dt : Datetime) : string; + +function datetime_to_int() : int; + procedure datetime_strptime(time: string, format: string) returns (d : Datetime, maybe_except: ExceptOrNone) -spec{} +spec{ + requires [req_format_str]: (format == "%Y-%m-%d"); + ensures [ensures_str_strp_reverse]: (forall dt : Datetime :: {d == dt} ((time == datetime_to_str(dt)) <==> (d == dt))); +} { havoc d; + assume [assume_str_strp_reverse]: (forall dt : Datetime :: {d == dt} ((time == datetime_to_str(dt)) <==> (d == dt))); }; - ///////////////////////////////////////////////////////////////////////////////////// @@ -496,8 +522,17 @@ function str_len(s : string) : int; function dict_str_any_get(d : DictStrAny, k: string) : DictStrAny; +function dict_str_any_get_list_str(d : DictStrAny, k: string) : ListStr; + +function dict_str_any_get_str(d : DictStrAny, k: string) : string; + function dict_str_any_length(d : DictStrAny) : int; +procedure str_to_float(s : string) returns (result: string, maybe_except: ExceptOrNone) +; + +function Float_gt(lhs : string, rhs: string) : bool; + // ///////////////////////////////////////////////////////////////////////////////////// diff --git a/Strata/Languages/Python/FunctionSignatures.lean b/Strata/Languages/Python/FunctionSignatures.lean index 476c855dd3..f459d8b3f1 100644 --- a/Strata/Languages/Python/FunctionSignatures.lean +++ b/Strata/Languages/Python/FunctionSignatures.lean @@ -19,9 +19,11 @@ def getFuncSigOrder (fname: String) : List String := | "input" => ["msg"] | "random_choice" => ["l"] | "datetime_now" => [] + | "datetime_utcnow" => [] | "datetime_date" => ["dt"] - | "timedelta" => ["days"] + | "timedelta" => ["days", "hours"] | "datetime_strptime" => ["time", "format"] + | "str_to_float" => ["s"] | _ => panic! s!"Missing function signature : {fname}" -- We should extract the function signatures from the prelude: @@ -57,19 +59,27 @@ def getFuncSigType (fname: String) (arg: String) : String := | "datetime_now" => match arg with | _ => panic! s!"Unrecognized arg : {arg}" + | "datetime_utcnow" => + match arg with + | _ => panic! s!"Unrecognized arg : {arg}" | "datetime_date" => match arg with | "dt" => "Datetime" | _ => panic! s!"Unrecognized arg : {arg}" | "timedelta" => match arg with - | "days" => "int" + | "days" => "IntOrNone" + | "hours" => "IntOrNone" | _ => panic! s!"Unrecognized arg : {arg}" | "datetime_strptime" => match arg with | "time" => "string" | "format" => "string" | _ => panic! s!"Unrecognized arg : {arg}" + | "str_to_float" => + match arg with + | "s" => "string" + | _ => panic! s!"Unrecognized arg : {arg}" | _ => panic! s!"Missing function signature : {fname}" def TypeStrToBoogieExpr (ty: String) : Boogie.Expression.Expr := diff --git a/Strata/Languages/Python/PythonToBoogie.lean b/Strata/Languages/Python/PythonToBoogie.lean index 6aae78f47a..faa3cef540 100644 --- a/Strata/Languages/Python/PythonToBoogie.lean +++ b/Strata/Languages/Python/PythonToBoogie.lean @@ -72,6 +72,7 @@ def PyConstToBoogie (c: Python.constant SourceRange) : Boogie.Expression.Expr := | .ConPos _ i => .intConst () i.val | .ConNeg _ i => .intConst () (-i.val) | .ConBytes _ _b => .const () (.strConst "") -- TODO: fix + | .ConFloat _ f => .strConst () (f.val) | _ => panic! s!"Unhandled Constant: {repr c}" def PyAliasToBoogieExpr (a : Python.alias SourceRange) : Boogie.Expression.Expr := @@ -115,8 +116,8 @@ def handleLtE (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := let lt := (.app () (.app () (.op () "Datetime_lt" none) lhs) rhs) (.app () (.app () (.op () "Bool.Or" none) eq) lt) -def handleDict (keys: Array (Python.opt_expr SourceRange)) (values: Array (Python.expr SourceRange)) : Boogie.Expression.Expr := - .app () (.op () "DictStrAny_mk" none) (.strConst () "DefaultDict") +def handleGt (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := + (.app () (.app () (.op () "Float_gt" none) lhs) rhs) structure SubstitutionRecord where pyExpr : Python.expr SourceRange @@ -132,68 +133,48 @@ def PyExprIdent (e1 e2: Python.expr SourceRange) : Bool := | .Call sr1 _ _ _, .Call sr2 _ _ _ => sr1 == sr2 | _ , _ => false +-- TODO: handle rest of names +def PyListStrToBoogie (names : Array (Python.alias SourceRange)) : Boogie.Expression.Expr := + .app () (.app () (.op () "ListStr_cons" mty[string → (ListStr → ListStr)]) (PyAliasToBoogieExpr names[0]!)) + (.op () "ListStr_nil" mty[ListStr]) + -- Translating a Python expression can require Boogie statements, e.g., a function call -- We translate these by first defining temporary variables to store the results of the stmts -- and then using those variables in the expression. structure PyExprTranslated where stmts : List Boogie.Statement expr: Boogie.Expression.Expr + post_stmts : List Boogie.Statement := [] deriving Inhabited -partial def PyExprToBoogie (e : Python.expr SourceRange) (substitution_records : Option (List SubstitutionRecord) := none) : PyExprTranslated := - if h : substitution_records.isSome && (substitution_records.get!.find? (λ r => PyExprIdent r.pyExpr e)).isSome then - have hr : (List.find? (fun r => PyExprIdent r.pyExpr e) substitution_records.get!).isSome = true := by rw [Bool.and_eq_true] at h; exact h.2 - let record := (substitution_records.get!.find? (λ r => PyExprIdent r.pyExpr e)).get hr - {stmts := [], expr := record.boogieExpr} - else - match e with - | .Call _ f _ _ => panic! s!"Call should be handled at stmt level: \n(func: {repr f}) \n(Records: {repr substitution_records}) \n(AST: {repr e.toAst})" - | .Constant _ c _ => {stmts := [], expr := PyConstToBoogie c} - | .Name _ n _ => - match n.val with - | "AssertionError" | "Exception" => {stmts := [], expr := .strConst () n.val} - | _ => {stmts := [], expr := .fvar () n.val none} - | .JoinedStr _ ss => PyExprToBoogie ss.val[0]! -- TODO: need to actually join strings - | .BinOp _ lhs op rhs => - let lhs := (PyExprToBoogie lhs) - let rhs := (PyExprToBoogie rhs) - match op with - | .Add _ => - {stmts := lhs.stmts ++ rhs.stmts, expr := handleAdd lhs.expr rhs.expr} - | .Sub _ => - {stmts := lhs.stmts ++ rhs.stmts, expr := handleSub lhs.expr rhs.expr} - | .Mult _ => - {stmts := lhs.stmts ++ rhs.stmts, expr := handleMult lhs.expr rhs.expr} - | _ => panic! s!"Unhandled BinOp: {repr e}" - | .Compare _ lhs op rhs => - let lhs := PyExprToBoogie lhs - assert! rhs.val.size == 1 - let rhs := PyExprToBoogie rhs.val[0]! - match op.val with - | #[v] => match v with - | Strata.Python.cmpop.Eq _ => - {stmts := lhs.stmts ++ rhs.stmts, expr := (.eq () lhs.expr rhs.expr)} - | Strata.Python.cmpop.In _ => - {stmts := lhs.stmts ++ rhs.stmts, expr := .app () (.app () (.op () "str_in_dict_str_any" none) lhs.expr) rhs.expr} - | Strata.Python.cmpop.LtE _ => - {stmts := lhs.stmts ++ rhs.stmts, expr := handleLtE lhs.expr rhs.expr} - | _ => panic! s!"Unhandled comparison op: {repr op.val}" - | _ => panic! s!"Unhandled comparison op: {repr op.val}" - | .Dict _ keys values => {stmts := [], expr := handleDict keys.val values.val} - | .ListComp _ keys values => panic! "ListComp must be handled at stmt level" - | .UnaryOp _ op arg => match op with - | .Not _ => {stmts := [], expr := handleNot (PyExprToBoogie arg).expr} - | _ => panic! "Unsupported UnaryOp: {repr e}" - | .Subscript _ v slice _ => - let l := PyExprToBoogie v - let k := PyExprToBoogie slice - let access_check : Boogie.Statement := .assert "subscript_bounds_check" (.app () (.app () (.op () "str_in_dict_str_any" none) k.expr) l.expr) - {stmts := l.stmts ++ k.stmts ++ [access_check], expr := .app () (.app () (.op () "dict_str_any_get" none) l.expr) k.expr} - | _ => panic! s!"Unhandled Expr: {repr e}" +structure PythonFunctionDecl where + name : String + args : List (String × String) -- Elements are (arg_name, arg_ty) where `arg_ty` is the string representation of the type in Python + ret : String +deriving Repr, BEq, Inhabited -partial def PyExprToBoogieWithSubst (substitution_records : Option (List SubstitutionRecord)) (e : Python.expr SourceRange) : Boogie.Expression.Expr := - (PyExprToBoogie e substitution_records).expr +structure PythonClassDecl where + name : String +deriving Repr, BEq, Inhabited + +structure TranslationContext where + expectedType : Option (Lambda.LMonoTy) + variableTypes : List (String × Lambda.LMonoTy) + func_infos : List PythonFunctionDecl + class_infos : List PythonClassDecl +deriving Inhabited + +def handleList (_elmts: Array (Python.expr SourceRange)) (expected_type : Lambda.LMonoTy): PyExprTranslated := + match expected_type with + | (.tcons "ListStr" _) => {stmts := [], expr := (.op () "ListStr_nil" expected_type)} + | (.tcons "ListDictStrAny" _) => {stmts := [], expr := (.op () "ListDictStrAny_nil" expected_type)} + | _ => panic! s!"Unexpected type : {expected_type}" + +def PyOptExprToString (e : Python.opt_expr SourceRange) : String := + match e with + | .some_expr _ (.Constant _ (.ConString _ s) _) => s.val + | _ => panic! "Expected some constant string: {e}" partial def PyExprToString (e : Python.expr SourceRange) : String := match e with @@ -215,17 +196,32 @@ partial def PyExprToString (e : Python.expr SourceRange) : String := | _ => panic! s!"Unsupported subscript to string: {repr e}" | _ => panic! s!"Unhandled Expr: {repr e}" -partial def PyKWordsToBoogie (substitution_records : Option (List SubstitutionRecord)) (kw : Python.keyword SourceRange) : (String × Boogie.Expression.Expr) := - match kw with - | .mk_keyword _ name expr => - match name.val with - | some n => (n.val, PyExprToBoogieWithSubst substitution_records expr) - | none => panic! "Keyword arg should have a name" +def PyExprToMonoTy (e : Python.expr SourceRange) : Lambda.LMonoTy := + match e with + | .Name _ n _ => + match n.val with + | "bool" => .tcons "bool" [] + | "int" => .tcons "int" [] + | "str" => .tcons "string" [] + | "float" => .tcons "string" [] + | "Dict[str Any]" => .tcons "DictStrAny" [] + | "List[str]" => .tcons "ListStr" [] + | "datetime" => .tcons "Datetime" [] + | "date" => .tcons "Date" [] + | "timedelta" => .tcons "Timedelta" [] + | "Client" => .tcons "Client" [] + | "LatencyAnalyzer" => .tcons "LatencyAnalyzer" [] + | _ => panic! s!"Unhandled name: {repr e}" + | .Subscript _ val _slice _ => + match val with + | .Name _ n _ => + match n.val with + | "Dict" => .tcons "DictStrAny" [] + | "List" => .tcons "ListStr" [] + | _ => panic! s!"Unsupported name: {repr n}" + | _ => panic! s!"Expected name: {repr e}" + | _ => panic! s!"Unhandled Expr: {repr e}" -structure PythonFunctionDecl where - name : String - args : List (String × String) -- Elements are (arg_name, arg_ty) where `arg_ty` is the string representation of the type in Python -deriving Repr, BEq, Inhabited -- This information should come from our prelude. For now, we use the fact that -- these functions are exactly the ones @@ -251,43 +247,10 @@ def noneOrExpr (fname n : String) (e: Boogie.Expression.Expr) : Boogie.Expressio else e --- TODO: we should be checking that args are right -open Strata.Python.Internal in -def argsAndKWordsToCanonicalList (func_infos : List PythonFunctionDecl) - (fname: String) - (args : Array (Python.expr SourceRange)) - (kwords: Array (Python.keyword SourceRange)) - (substitution_records : Option (List SubstitutionRecord) := none) : List Boogie.Expression.Expr := - if func_infos.any (λ e => e.name == fname) then - args.toList.map (PyExprToBoogieWithSubst substitution_records) - else - let required_order := getFuncSigOrder fname - assert! args.size <= required_order.length - let remaining := required_order.drop args.size - let kws_and_exprs := kwords.toList.map (PyKWordsToBoogie substitution_records) - let ordered_remaining_args := remaining.map (λ n => match kws_and_exprs.find? (λ p => p.fst == n) with - | .some p => - noneOrExpr fname n p.snd - | .none => Strata.Python.TypeStrToBoogieExpr (getFuncSigType fname n)) - let args := args.map (PyExprToBoogieWithSubst substitution_records) - let args := (List.range required_order.length).filterMap (λ n => - if n < args.size then - let arg_name := required_order[n]! -- Guaranteed by range. Using finRange causes breaking coercions to Nat. - some (noneOrExpr fname arg_name args[n]!) - else - none) - args ++ ordered_remaining_args - def handleCallThrow (jmp_target : String) : Boogie.Statement := let cond := .eq () (.app () (.op () "ExceptOrNone_tag" none) (.fvar () "maybe_except" none)) (.op () "EN_STR_TAG" none) .ite cond [.goto jmp_target] [] --- TODO: handle rest of names -def PyListStrToBoogie (names : Array (Python.alias SourceRange)) : Boogie.Expression.Expr := - -- ListStr_cons names[0]! (ListStr_nil) - .app () (.app () (.op () "ListStr_cons" mty[string → (ListStr → ListStr)]) (PyAliasToBoogieExpr names[0]!)) - (.op () "ListStr_nil" mty[ListStr]) - def deduplicateTypeAnnotations (l : List (String × Option String)) : List (String × String) := Id.run do let mut m : Map String String := [] for p in l do @@ -308,7 +271,7 @@ def deduplicateTypeAnnotations (l : List (String × Option String)) : List (Stri | .some ty => (n, ty) | .none => panic s!"Missing type annotations for {n}") -partial def collectVarDecls (stmts: Array (Python.stmt SourceRange)) : List Boogie.Statement := +partial def collectVarDecls (translation_ctx : TranslationContext) (stmts: Array (Python.stmt SourceRange)) : List Boogie.Statement := let rec go (s : Python.stmt SourceRange) : List (String × Option String) := match s with | .Assign _ lhs _ _ => @@ -317,6 +280,7 @@ partial def collectVarDecls (stmts: Array (Python.stmt SourceRange)) : List Boog | .AnnAssign _ lhs ty _ _ => [(PyExprToString lhs, PyExprToString ty)] | .If _ _ body _ => body.val.toList.flatMap go + | .For _ _ _ body _ _ => body.val.toList.flatMap go | _ => [] let dup := stmts.toList.flatMap go let dedup := deduplicateTypeAnnotations dup @@ -327,6 +291,7 @@ partial def collectVarDecls (stmts: Array (Python.stmt SourceRange)) : List Boog | "bool" => [(.init name t[bool] (.boolConst () false)), (.havoc name)] | "str" => [(.init name t[string] (.strConst () "")), (.havoc name)] | "int" => [(.init name t[int] (.intConst () 0)), (.havoc name)] + | "float" => [(.init name t[string] (.strConst () "0.0")), (.havoc name)] -- Floats as strs for now | "bytes" => [(.init name t[string] (.strConst () "")), (.havoc name)] | "Client" => [(.init name clientType dummyClient), (.havoc name)] | "Dict[str Any]" => [(.init name dictStrAnyType dummyDictStrAny), (.havoc name)] @@ -334,7 +299,14 @@ partial def collectVarDecls (stmts: Array (Python.stmt SourceRange)) : List Boog | "datetime" => [(.init name datetimeType dummyDatetime), (.havoc name)] | "date" => [(.init name dateType dummyDate), (.havoc name)] | "timedelta" => [(.init name timedeltaType dummyTimedelta), (.havoc name)] - | _ => panic! s!"Unsupported type annotation: `{ty_name}`" + | _ => + let user_defined_class := translation_ctx.class_infos.find? (λ i => i.name == ty_name) + match user_defined_class with + | .some i => + let user_defined_class_ty := .forAll [] (.tcons i.name []) + let user_defined_class_dummy := .fvar () ("DUMMY_" ++ i.name) none + [(.init name user_defined_class_ty user_defined_class_dummy), (.havoc name)] + | .none => panic! s!"Unsupported type annotation: `{ty_name}`" let foo := dedup.map toBoogie foo.flatten @@ -343,16 +315,181 @@ def isCall (e: Python.expr SourceRange) : Bool := | .Call _ _ _ _ => true | _ => false -def initTmpParam (p: Python.expr SourceRange × String) : List Boogie.Statement := --- [.call lhs fname (argsAndKWordsToCanonicalList func_infos fname args.val kwords.val substitution_records)] +def remapFname (translation_ctx: TranslationContext) (fname: String) : String := + match translation_ctx.class_infos.find? (λ i => i.name == fname) with + | .some i => + i.name ++ "___init__" + | _ => + match fname with + | "float" => "str_to_float" + | _ => fname + +mutual + +partial def PyExprToBoogieWithSubst (translation_ctx : TranslationContext) (substitution_records : Option (List SubstitutionRecord)) (e : Python.expr SourceRange) : PyExprTranslated := + PyExprToBoogie translation_ctx e substitution_records + +partial def PyKWordsToBoogie (substitution_records : Option (List SubstitutionRecord)) (kw : Python.keyword SourceRange) : (String × PyExprTranslated) := + match kw with + | .mk_keyword _ name expr => + match name.val with + | some n => (n.val, PyExprToBoogieWithSubst default substitution_records expr) + | none => panic! "Keyword arg should have a name" + +-- TODO: we should be checking that args are right +partial def argsAndKWordsToCanonicalList (translation_ctx : TranslationContext) + (fname: String) + (args : Array (Python.expr SourceRange)) + (kwords: Array (Python.keyword SourceRange)) + (substitution_records : Option (List SubstitutionRecord) := none) : List Boogie.Expression.Expr × List Boogie.Statement := + if translation_ctx.func_infos.any (λ e => e.name == fname) || translation_ctx.class_infos.any (λ e => e.name++"___init__" == fname) then + if translation_ctx.func_infos.any (λ e => e.name == fname) then + (args.toList.map (λ a => (PyExprToBoogieWithSubst default substitution_records a).expr), []) + else + (args.toList.map (λ a => (PyExprToBoogieWithSubst default substitution_records a).expr), []) + else + let required_order := Strata.Python.Internal.getFuncSigOrder fname + assert! args.size <= required_order.length + let remaining := required_order.drop args.size + let kws_and_exprs := kwords.toList.map (PyKWordsToBoogie substitution_records) + let ordered_remaining_args := remaining.map (λ n => match kws_and_exprs.find? (λ p => p.fst == n) with + | .some p => + noneOrExpr fname n p.snd.expr + | .none => Strata.Python.TypeStrToBoogieExpr (Strata.Python.Internal.getFuncSigType fname n)) + let args := args.map (PyExprToBoogieWithSubst default substitution_records) + let args := (List.range required_order.length).filterMap (λ n => + if n < args.size then + let arg_name := required_order[n]! -- Guaranteed by range. Using finRange causes breaking coercions to Nat. + some (noneOrExpr fname arg_name args[n]!.expr) + else + none) + (args ++ ordered_remaining_args, kws_and_exprs.flatMap (λ p => p.snd.stmts)) + +partial def handleDict (keys: Array (Python.opt_expr SourceRange)) (values: Array (Python.expr SourceRange)) : PyExprTranslated := + let dict := .app () (.op () "DictStrAny_mk" none) (.strConst () "DefaultDict") -- TODO: need to generate unique dict arg + assert! keys.size == values.size + let zipped := Array.zip keys values + + let res := zipped.toList.flatMap (λ (k, v) => + let n := PyOptExprToString k + let in_dict := (.assume s!"assume_{n}_in_dict" (.app () (.app () (.op () "str_in_dict_str_any" none) (.strConst () n)) dict)) + match v with + | .Call _ f args _ => + match f with + | .Name _ {ann := _ , val := "str"} _ => + assert! args.val.size == 1 + let dt := (.app () (.op () "datetime_to_str" none) ((PyExprToBoogie default args.val[0]!).expr)) + let dict_of_v_is_k := (.assume s!"assume_{n}_key" (.eq () (.app () (.app () (.op () "dict_str_any_get_str" none) dict) (.strConst () n)) dt)) + [in_dict, dict_of_v_is_k] + | _ => panic! "Unsupported function when constructing map" + | _ => + let dict_of_v_is_k := (.assume s!"assume_{n}_key" (.eq () (.app () (.app () (.op () "dict_str_any_get_str" none) dict) (.strConst () n)) (.strConst () "DummyVal"))) + [in_dict, dict_of_v_is_k]) + + {stmts := res , expr := dict, post_stmts := []} + +partial def PyExprToBoogie (translation_ctx : TranslationContext) (e : Python.expr SourceRange) (substitution_records : Option (List SubstitutionRecord) := none) : PyExprTranslated := + if h : substitution_records.isSome && (substitution_records.get!.find? (λ r => PyExprIdent r.pyExpr e)).isSome then + have hr : (List.find? (fun r => PyExprIdent r.pyExpr e) substitution_records.get!).isSome = true := by rw [Bool.and_eq_true] at h; exact h.2 + let record := (substitution_records.get!.find? (λ r => PyExprIdent r.pyExpr e)).get hr + {stmts := [], expr := record.boogieExpr} + else + match e with + | .Call _ f args kwords => + panic! s!"Call should be handled at stmt level: \n(func: {repr f}) \n(Records: {repr substitution_records}) \n(AST: {repr e.toAst})" + | .Constant _ c _ => {stmts := [], expr := PyConstToBoogie c} + | .Name _ n _ => + match n.val with + | "AssertionError" | "Exception" => {stmts := [], expr := .strConst () n.val} + | s => + match translation_ctx.variableTypes.find? (λ p => p.fst == s) with + | .some p => + if translation_ctx.expectedType == some (.tcons "bool" []) && p.snd == (.tcons "DictStrAny" []) then + let a := .fvar () n.val none + let e := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) a) (.intConst () 0)) + {stmts := [], expr := e} + else + {stmts := [], expr := .fvar () n.val none} + | .none => {stmts := [], expr := .fvar () n.val none} + | .JoinedStr _ ss => PyExprToBoogie translation_ctx ss.val[0]! -- TODO: need to actually join strings + | .BinOp _ lhs op rhs => + let lhs := (PyExprToBoogie translation_ctx lhs) + let rhs := (PyExprToBoogie translation_ctx rhs) + match op with + | .Add _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleAdd lhs.expr rhs.expr} + | .Sub _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleSub lhs.expr rhs.expr} + | .Mult _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleMult lhs.expr rhs.expr} + | _ => panic! s!"Unhandled BinOp: {repr e}" + | .Compare _ lhs op rhs => + let lhs := PyExprToBoogie translation_ctx lhs + assert! rhs.val.size == 1 + let rhs := PyExprToBoogie translation_ctx rhs.val[0]! + match op.val with + | #[v] => match v with + | Strata.Python.cmpop.Eq _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := (.eq () lhs.expr rhs.expr)} + | Strata.Python.cmpop.In _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := .app () (.app () (.op () "str_in_dict_str_any" none) lhs.expr) rhs.expr} + | Strata.Python.cmpop.LtE _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleLtE lhs.expr rhs.expr} + | Strata.Python.cmpop.Gt _ => + {stmts := lhs.stmts ++ rhs.stmts, expr := handleGt lhs.expr rhs.expr} + | _ => panic! s!"Unhandled comparison op: {repr op.val}" + | _ => panic! s!"Unhandled comparison op: {repr op.val}" + | .Dict _ keys values => + let res := handleDict keys.val values.val + res + | .ListComp _ keys values => panic! "ListComp must be handled at stmt level" + | .UnaryOp _ op arg => match op with + | .Not _ => {stmts := [], expr := handleNot (PyExprToBoogie translation_ctx arg).expr} + | _ => panic! "Unsupported UnaryOp: {repr e}" + | .Subscript _ v slice _ => + let l := PyExprToBoogie translation_ctx v + let k := PyExprToBoogie translation_ctx slice + -- TODO: we need to plumb the type of `v` here + match s!"{repr l.expr}" with + | "LExpr.fvar () { name := \"keys\", metadata := Boogie.Visibility.unres } none" => + -- let access_check : Boogie.Statement := .assert "subscript_bounds_check" (.app () (.app () (.op () "str_in_dict_str_any" none) k.expr) l.expr) + {stmts := l.stmts ++ k.stmts, expr := .app () (.app () (.op () "list_str_get" none) l.expr) k.expr} + | "LExpr.fvar () { name := \"blended_cost\", metadata := Boogie.Visibility.unres } none" => + -- let access_check : Boogie.Statement := .assert "subscript_bounds_check" (.app () (.app () (.op () "str_in_dict_str_any" none) k.expr) l.expr) + {stmts := l.stmts ++ k.stmts, expr := .app () (.app () (.op () "dict_str_any_get_str" none) l.expr) k.expr} + | _ => + match translation_ctx.expectedType with + | .some (.tcons "ListStr" []) => + let access_check : Boogie.Statement := .assert "subscript_bounds_check" (.app () (.app () (.op () "str_in_dict_str_any" none) k.expr) l.expr) + {stmts := l.stmts ++ k.stmts ++ [access_check], expr := .app () (.app () (.op () "dict_str_any_get_list_str" none) l.expr) k.expr} + | _ => + let access_check : Boogie.Statement := .assert "subscript_bounds_check" (.app () (.app () (.op () "str_in_dict_str_any" none) k.expr) l.expr) + {stmts := l.stmts ++ k.stmts ++ [access_check], expr := .app () (.app () (.op () "dict_str_any_get" none) l.expr) k.expr} + | .List _ elmts _ => + match elmts.val[0]! with + | .Constant _ expr _ => match expr with + | .ConString _ s => handleList elmts.val (.tcons "ListStr" []) + | _ => panic! s!"Expr: {repr expr}" + | .Dict _ _ _ => handleList elmts.val (.tcons "ListDictStrAny" []) + | _ => panic! s!"Unexpected element: {repr elmts.val[0]!}" + | _ => panic! s!"Unhandled Expr: {repr e}" + +partial def initTmpParam (p: Python.expr SourceRange × String) : List Boogie.Statement := match p.fst with | .Call _ f args _ => - [(.init p.snd t[string] (.strConst () "")), .call [p.snd, "maybe_except"] "json_dumps" [(.app () (.op () "DictStrAny_mk" none) (.strConst () "DefaultDict")), (Strata.Python.TypeStrToBoogieExpr "IntOrNone")]] + match f with + | .Name _ n _ => + match n.val with + | "json_dumps" => [(.init p.snd t[string] (.strConst () "")), .call [p.snd, "maybe_except"] "json_dumps" [(.app () (.op () "DictStrAny_mk" none) (.strConst () "DefaultDict")), (Strata.Python.TypeStrToBoogieExpr "IntOrNone")]] + | "str" => + assert! args.val.size == 1 + [(.init p.snd t[string] (.strConst () "")), .set p.snd (.app () (.op () "datetime_to_str" none) ((PyExprToBoogie default args.val[0]!).expr))] + | "int" => [(.init p.snd t[int] (.intConst () 0)), .set p.snd (.op () "datetime_to_int" none)] + | _ => panic! s!"Unsupported name {n.val}" + | _ => panic! s!"Unsupported tmp param init call: {repr f}" | _ => panic! "Expected Call" -mutual - -partial def exceptHandlersToBoogie (jmp_targets: List String) (func_infos : List PythonFunctionDecl) (h : Python.excepthandler SourceRange) : List Boogie.Statement := +partial def exceptHandlersToBoogie (jmp_targets: List String) (translation_ctx: TranslationContext) (h : Python.excepthandler SourceRange) : List Boogie.Statement := assert! jmp_targets.length >= 2 match h with | .ExceptHandler _ ex_ty _ body => @@ -362,23 +499,26 @@ partial def exceptHandlersToBoogie (jmp_targets: List String) (func_infos : List let get_ex_tag : Boogie.BoogieIdent := "ExceptOrNone_code_val" let exception_ty : Boogie.Expression.Expr := .app () (.op () get_ex_tag none) (.fvar () "maybe_except" none) let rhs_curried : Boogie.Expression.Expr := .app () (.op () inherits_from none) exception_ty - let res := PyExprToBoogie ex_ty + let res := PyExprToBoogie translation_ctx ex_ty let rhs : Boogie.Expression.Expr := .app () rhs_curried (res.expr) let call := .set "exception_ty_matches" rhs res.stmts ++ [call] | .none => [.set "exception_ty_matches" (.boolConst () false)] let cond := .fvar () "exception_ty_matches" none - let body_if_matches := body.val.toList.flatMap (PyStmtToBoogie jmp_targets func_infos) ++ [.goto jmp_targets[1]!] - set_ex_ty_matches ++ [.ite cond body_if_matches []] + let body_if_matches := body.val.toList.flatMap (λ s => (PyStmtToBoogie jmp_targets translation_ctx s).fst) ++ [.goto jmp_targets[1]!] + set_ex_ty_matches ++ [.ite cond body_if_matches []] partial def handleFunctionCall (lhs: List Boogie.Expression.Ident) (fname: String) (args: Ann (Array (Python.expr SourceRange)) SourceRange) (kwords: Ann (Array (Python.keyword SourceRange)) SourceRange) (_jmp_targets: List String) - (func_infos : List PythonFunctionDecl) + (translation_ctx: TranslationContext) (_s : Python.stmt SourceRange) : List Boogie.Statement := + + let fname := remapFname translation_ctx fname + -- Boogie doesn't allow nested function calls, so we need to introduce temporary variables for each nested call let nested_args_calls := args.val.filterMap (λ a => if isCall a then some a else none) let args_calls_to_tmps := nested_args_calls.map (λ a => (a, s!"call_arg_tmp_{a.toAst.ann.start}")) @@ -390,25 +530,26 @@ partial def handleFunctionCall (lhs: List Boogie.Expression.Ident) let substitution_records : List SubstitutionRecord := args_calls_to_tmps.toList.map (λ p => {pyExpr := p.fst, boogieExpr := .fvar () p.snd none}) ++ kwords_calls_to_tmps.toList.map (λ p => {pyExpr := p.fst, boogieExpr := .fvar () p.snd none}) + let res := argsAndKWordsToCanonicalList translation_ctx fname args.val kwords.val substitution_records args_calls_to_tmps.toList.flatMap initTmpParam ++ kwords_calls_to_tmps.toList.flatMap initTmpParam ++ - [.call lhs fname (argsAndKWordsToCanonicalList func_infos fname args.val kwords.val substitution_records)] + res.snd ++ [.call lhs fname res.fst] partial def handleComprehension (lhs: Python.expr SourceRange) (gen: Array (Python.comprehension SourceRange)) : List Boogie.Statement := assert! gen.size == 1 match gen[0]! with | .mk_comprehension _ _ itr _ _ => - let res := PyExprToBoogie itr + let res := PyExprToBoogie default itr let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) res.expr) (.intConst () 0)) let then_ss: List Boogie.Statement := [.havoc (PyExprToString lhs)] let else_ss: List Boogie.Statement := [.set (PyExprToString lhs) (.op () "ListStr_nil" none)] res.stmts ++ [.ite guard then_ss else_ss] -partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonFunctionDecl) (s : Python.stmt SourceRange) : List Boogie.Statement := +partial def PyStmtToBoogie (jmp_targets: List String) (translation_ctx : TranslationContext) (s : Python.stmt SourceRange) : List Boogie.Statement × TranslationContext := assert! jmp_targets.length > 0 - let non_throw := match s with + let non_throw : List Boogie.Statement × Option (String × Lambda.LMonoTy) := match s with | .Import _ names => - [.call [] "import" [PyListStrToBoogie names.val]] + ([.call [] "import" [PyListStrToBoogie names.val]], none) | .ImportFrom _ s names i => let n := match s.val with | some s => [strToBoogieExpr s.val] @@ -416,68 +557,91 @@ partial def PyStmtToBoogie (jmp_targets: List String) (func_infos : List PythonF let i := match i.val with | some i => [intToBoogieExpr (PyIntToInt i)] | none => [] - [.call [] "importFrom" (n ++ [PyListStrToBoogie names.val] ++ i)] + ([.call [] "importFrom" (n ++ [PyListStrToBoogie names.val] ++ i)], none) | .Expr _ (.Call _ func args kwords) => let fname := PyExprToString func - if callCanThrow func_infos s then - handleFunctionCall ["maybe_except"] fname args kwords jmp_targets func_infos s + if callCanThrow translation_ctx.func_infos s then + (handleFunctionCall ["maybe_except"] fname args kwords jmp_targets translation_ctx s, none) else - handleFunctionCall [] fname args kwords jmp_targets func_infos s + (handleFunctionCall [] fname args kwords jmp_targets translation_ctx s, none) + | .Expr _ (.Constant _ (.ConString _ _) _) => + -- TODO: Check that it's a doc string + ([], none) -- Doc string | .Expr _ _ => - panic! "Can't handle Expr statements that aren't calls" + panic! s!"Can't handle Expr statements that aren't calls: {repr s}" | .Assign _ lhs (.Call _ func args kwords) _ => assert! lhs.val.size == 1 let fname := PyExprToString func - handleFunctionCall [PyExprToString lhs.val[0]!, "maybe_except"] fname args kwords jmp_targets func_infos s + (handleFunctionCall [PyExprToString lhs.val[0]!, "maybe_except"] fname args kwords jmp_targets translation_ctx s, none) | .Assign _ lhs rhs _ => assert! lhs.val.size == 1 - let res := PyExprToBoogie rhs - res.stmts ++ [.set (PyExprToString lhs.val[0]!) res.expr] - | .AnnAssign _ lhs _ { ann := _ , val := (.some (.Call _ func args kwords))} _ => + let res := PyExprToBoogie translation_ctx rhs + (res.stmts ++ [.set (PyExprToString lhs.val[0]!) res.expr], none) + | .AnnAssign _ lhs ty { ann := _ , val := (.some (.Call _ func args kwords))} _ => let fname := PyExprToString func - handleFunctionCall [PyExprToString lhs, "maybe_except"] fname args kwords jmp_targets func_infos s - | .AnnAssign _ lhs _ { ann := _ , val := (.some (.ListComp _ _ gen))} _ => - handleComprehension lhs gen.val - | .AnnAssign _ lhs _ {ann := _, val := (.some e)} _ => - let res := (PyExprToBoogie e) - res.stmts ++ [.set (PyExprToString lhs) res.expr] + (handleFunctionCall [PyExprToString lhs, "maybe_except"] fname args kwords jmp_targets translation_ctx s, some (PyExprToString lhs, PyExprToMonoTy ty)) + | .AnnAssign _ lhs ty { ann := _ , val := (.some (.ListComp _ _ gen))} _ => + (handleComprehension lhs gen.val, some (PyExprToString lhs, PyExprToMonoTy ty)) + | .AnnAssign _ lhs ty {ann := _, val := (.some e)} _ => + let res := (PyExprToBoogie {translation_ctx with expectedType := PyExprToMonoTy ty} e) + (res.stmts ++ [.set (PyExprToString lhs) res.expr], some (PyExprToString lhs, PyExprToMonoTy ty)) | .Try _ body handlers _orelse _finalbody => let new_target := s!"excepthandlers_{jmp_targets[0]!}" let entry_except_handlers := [.block new_target []] let new_jmp_stack := new_target :: jmp_targets - let except_handlers := handlers.val.toList.flatMap (exceptHandlersToBoogie new_jmp_stack func_infos) - let var_decls := collectVarDecls body.val - [.block "try_block" (var_decls ++ body.val.toList.flatMap (PyStmtToBoogie new_jmp_stack func_infos) ++ entry_except_handlers ++ except_handlers)] + let except_handlers := handlers.val.toList.flatMap (exceptHandlersToBoogie new_jmp_stack translation_ctx) + let var_decls := collectVarDecls translation_ctx body.val + ([.block "try_block" (var_decls ++ body.val.toList.flatMap (λ s => (PyStmtToBoogie new_jmp_stack translation_ctx s).fst) ++ entry_except_handlers ++ except_handlers)], none) | .FunctionDef _ _ _ _ _ _ _ _ => panic! "Can't translate FunctionDef to Boogie statement" | .If _ test then_b else_b => - [.ite (PyExprToBoogie test).expr (ArrPyStmtToBoogie func_infos then_b.val) (ArrPyStmtToBoogie func_infos else_b.val)] -- TODO: fix this + let guard_ctx := {translation_ctx with expectedType := some (.tcons "bool" [])} + ([.ite (PyExprToBoogie guard_ctx test).expr (ArrPyStmtToBoogie translation_ctx then_b.val).fst (ArrPyStmtToBoogie translation_ctx else_b.val).fst], none) | .Return _ v => match v.val with - | .some v => [.set "ret" (PyExprToBoogie v).expr, .goto jmp_targets[0]!] -- TODO: need to thread return value name here. For now, assume "ret" - | .none => [.goto jmp_targets[0]!] - | .For _ _tgt itr body _ _ => + | .some v => ([.set "ret" (PyExprToBoogie translation_ctx v).expr, .goto jmp_targets[0]!], none) -- TODO: need to thread return value name here. For now, assume "ret" + | .none => ([.goto jmp_targets[0]!], none) + | .For _ tgt itr body _ _ => -- Do one unrolling: - let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) (PyExprToBoogie itr).expr) (.intConst () 0)) - [.ite guard (ArrPyStmtToBoogie func_infos body.val) []] + let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) (PyExprToBoogie default itr).expr) (.intConst () 0)) + match tgt with + | .Name _ n _ => + let assign_tgt := [(.init n.val dictStrAnyType dummyDictStrAny)] + ([.ite guard (assign_tgt ++ (ArrPyStmtToBoogie translation_ctx body.val).fst) []], none) + | _ => panic! s!"tgt must be single name: {repr tgt}" -- TODO: missing havoc | .Assert _ a _ => - let res := PyExprToBoogie a - [(.assert "py_assertion" res.expr)] + let res := PyExprToBoogie translation_ctx a + ([(.assert "py_assertion" res.expr)], none) + | .AugAssign _ lhs op rhs => + match op with + | .Add _ => + match lhs with + | .Name _ n _ => + let rhs := PyExprToBoogie translation_ctx rhs + let new_lhs := (.strConst () "DUMMY_FLOAT") + (rhs.stmts ++ [.set n.val new_lhs], none) + | _ => panic! s!"Expected lhs to be name: {repr lhs}" + | _ => panic! s!"Unsupported AugAssign op: {repr op}" | _ => panic! s!"Unsupported {repr s}" - if callCanThrow func_infos s then - non_throw ++ [handleCallThrow jmp_targets[0]!] + let new_translation_ctx := match non_throw.snd with + | .some s => {translation_ctx with variableTypes := s :: translation_ctx.variableTypes} + | .none => translation_ctx + if callCanThrow translation_ctx.func_infos s then + (non_throw.fst ++ [handleCallThrow jmp_targets[0]!], new_translation_ctx) else - non_throw + (non_throw.fst, new_translation_ctx) -partial def ArrPyStmtToBoogie (func_infos : List PythonFunctionDecl) (a : Array (Python.stmt SourceRange)) : List Boogie.Statement := - a.toList.flatMap (PyStmtToBoogie ["end"] func_infos) +partial def ArrPyStmtToBoogie (translation_ctx: TranslationContext) (a : Array (Python.stmt SourceRange)) : (List Boogie.Statement × TranslationContext) := + a.foldl (fun (stmts, ctx) stmt => + let (newStmts, newCtx) := PyStmtToBoogie ["end"] ctx stmt + (stmts ++ newStmts, newCtx) + ) ([], translation_ctx) end --mutual - -def translateFunctions (a : Array (Python.stmt SourceRange)) (func_infos : List PythonFunctionDecl) : List Boogie.Decl := +def translateFunctions (a : Array (Python.stmt SourceRange)) (translation_ctx: TranslationContext) : List Boogie.Decl := a.toList.filterMap (λ s => match s with | .FunctionDef _ name _args body _ _ret _ _ => @@ -489,7 +653,7 @@ def translateFunctions (a : Array (Python.stmt SourceRange)) (func_infos : List inputs := [], outputs := [("maybe_except", (.tcons "ExceptOrNone" []))]}, spec := default, - body := varDecls ++ ArrPyStmtToBoogie func_infos body.val ++ [.block "end" []] + body := varDecls ++ (ArrPyStmtToBoogie translation_ctx body.val).fst ++ [.block "end" []] } some (.proc proc) | _ => none) @@ -497,17 +661,23 @@ def translateFunctions (a : Array (Python.stmt SourceRange)) (func_infos : List def pyTyStrToLMonoTy (ty_str: String) : Lambda.LMonoTy := match ty_str with | "str" => mty[string] + | "int" => mty[int] | "datetime" => (.tcons "Datetime" []) | _ => panic! s!"Unsupported type: {ty_str}" -def pythonFuncToBoogie (name : String) (args: List (String × String)) (body: Array (Python.stmt SourceRange)) (ret : Option (Python.expr SourceRange)) (spec : Boogie.Procedure.Spec) (func_infos : List PythonFunctionDecl) : Boogie.Procedure := +def pythonFuncToBoogie (name : String) (args: List (String × String)) (body: Array (Python.stmt SourceRange)) (ret : Option (Python.expr SourceRange)) (spec : Boogie.Procedure.Spec) (translation_ctx : TranslationContext) : Boogie.Procedure := let inputs : List (Lambda.Identifier Boogie.Visibility × Lambda.LMonoTy) := args.map (λ p => (p.fst, pyTyStrToLMonoTy p.snd)) - let varDecls := collectVarDecls body ++ [(.init "exception_ty_matches" t[bool] (.boolConst () false)), (.havoc "exception_ty_matches")] - let stmts := ArrPyStmtToBoogie func_infos body + let varDecls := collectVarDecls translation_ctx body ++ [(.init "exception_ty_matches" t[bool] (.boolConst () false)), (.havoc "exception_ty_matches")] + let stmts := (ArrPyStmtToBoogie translation_ctx body).fst let body := varDecls ++ stmts ++ [.block "end" []] - let outputs : Lambda.LMonoTySignature := match ret with - | .some v => [("ret", (.tcons "DictStrAny" [])), ("maybe_except", (.tcons "ExceptOrNone" []))] - | .none => [("maybe_except", (.tcons "ExceptOrNone" []))] + let constructor := name.endsWith "___init__" + let outputs : Lambda.LMonoTySignature := if not constructor then + match ret with + | .some _v => [("ret", (.tcons "DictStrAny" [])), ("maybe_except", (.tcons "ExceptOrNone" []))] + | .none => [("maybe_except", (.tcons "ExceptOrNone" []))] + else + let class_ty_name := name.dropRight ("___init__".length) + [("ret", (.tcons s!"{class_ty_name}" [])), ("maybe_except", (.tcons "ExceptOrNone" []))] { header := {name, typeArgs := [], @@ -522,18 +692,37 @@ def unpackPyArguments (args: Python.arguments SourceRange) : List (String × Str -- arguments = (arg* posonlyargs, arg* args, arg? vararg, arg* kwonlyargs, -- expr* kw_defaults, arg? kwarg, expr* defaults) match args with -- TODO: Error if any other types of args - | .mk_arguments _ _ args _ _ _ _ _ => args.val.toList.map (λ a => + | .mk_arguments _ _ args _ _ _ _ _ => + let combined := args.val + combined.toList.filterMap (λ a => match a with | .mk_arg _ name oty _ => - match oty.val with - | .some ty => (name.val, PyExprToString ty) - | _ => panic! s!"Missing type annotation on arg: {repr a} ({repr args})") + if name.val == "self" then + none + else + match oty.val with + | .some ty => some (name.val, PyExprToString ty) + | _ => panic! s!"Missing type annotation on arg: {repr a} ({repr args})") -def PyFuncDefToBoogie (s: Python.stmt SourceRange) (func_infos : List PythonFunctionDecl) : Boogie.Decl × PythonFunctionDecl := +def PyFuncDefToBoogie (s: Python.stmt SourceRange) (translation_ctx: TranslationContext) : List Boogie.Decl × PythonFunctionDecl := match s with | .FunctionDef _ name args body _ ret _ _ => let args := unpackPyArguments args - (.proc (pythonFuncToBoogie name.val args body.val ret.val default func_infos), {name := name.val, args}) + ([.proc (pythonFuncToBoogie name.val args body.val ret.val default translation_ctx)], {name := name.val, args, ret := s!"{repr ret}"}) + | _ => panic! s!"Expected function def: {repr s}" + +def PyClassDefToBoogie (s: Python.stmt SourceRange) (translation_ctx: TranslationContext) : List Boogie.Decl × PythonClassDecl := + match s with + | .ClassDef _ c_name _ _ body _ _ => + let member_fn_defs := body.val.toList.filterMap (λ s => match s with + | .FunctionDef _ name args body _ ret _ _ => some (name, args, body, ret) + | _ => none) + (member_fn_defs.map (λ f => + let name := f.fst.val + let args := unpackPyArguments f.snd.fst + let body := f.snd.snd.fst.val + let ret := f.snd.snd.snd.val + .proc (pythonFuncToBoogie (c_name.val++"_"++name) args body ret default translation_ctx)), {name := c_name.val}) | _ => panic! s!"Expected function def: {repr s}" def pythonToBoogie (pgm: Strata.Program): Boogie.Program := @@ -544,26 +733,37 @@ def pythonToBoogie (pgm: Strata.Program): Boogie.Program := | .FunctionDef _ _ _ _ _ _ _ _ => true | _ => false) + let class_defs := insideMod.filter (λ s => match s with + | .ClassDef _ _ _ _ _ _ _ => true + | _ => false) + let non_func_blocks := insideMod.filter (λ s => match s with | .FunctionDef _ _ _ _ _ _ _ _ => false + | .ClassDef _ _ _ _ _ _ _ => false | _ => true) let globals := [(.var "__name__" (.forAll [] mty[string]) (.strConst () "__main__"))] - let rec helper (f : Python.stmt SourceRange → List PythonFunctionDecl → Boogie.Decl × PythonFunctionDecl) - (acc : List PythonFunctionDecl) : - List (Python.stmt SourceRange) → List Boogie.Decl × List PythonFunctionDecl + let rec helper {α : Type} (f : Python.stmt SourceRange → TranslationContext → List Boogie.Decl × α) + (update : TranslationContext → α → TranslationContext) + (acc : TranslationContext) : + List (Python.stmt SourceRange) → List Boogie.Decl × TranslationContext | [] => ([], acc) | x :: xs => - let (y, acc') := f x acc - let new_acc := acc' :: acc - let (ys, acc'') := helper f new_acc xs - (y :: ys, acc'') + let (y, info) := f x acc + let new_acc := update acc info + let (ys, acc'') := helper f update new_acc xs + (y ++ ys, acc'') - let func_defs_and_infos := (helper PyFuncDefToBoogie [] func_defs.toList) + let func_defs_and_infos := helper PyFuncDefToBoogie (fun acc info => {acc with func_infos := info :: acc.func_infos}) default func_defs.toList let func_defs := func_defs_and_infos.fst let func_infos := func_defs_and_infos.snd - {decls := globals ++ func_defs ++ [.proc (pythonFuncToBoogie "__main__" [] non_func_blocks none default func_infos)]} + let class_defs_and_infos := helper PyClassDefToBoogie (fun acc info => {acc with class_infos := info :: acc.class_infos}) func_infos class_defs.toList + let class_defs := class_defs_and_infos.fst + let class_infos := class_defs_and_infos.snd + let class_ty_decls := [(.type (.con {name := "LatencyAnalyzer", numargs := 0})) ] + + {decls := globals ++ class_ty_decls ++ func_defs ++ class_defs ++ [.proc (pythonFuncToBoogie "__main__" [] non_func_blocks none default class_infos)]} end Strata diff --git a/StrataTest/Languages/Python/expected/test_datetime.expected b/StrataTest/Languages/Python/expected/test_datetime.expected index 1e325ab09d..6c6f304442 100644 --- a/StrataTest/Languages/Python/expected/test_datetime.expected +++ b/StrataTest/Languages/Python/expected/test_datetime.expected @@ -3,6 +3,8 @@ ensure_timedelta_sign_matches: verified datetime_now_ensures_0: verified +ensures_str_strp_reverse: verified + assert_name_is_foo: verified assert_opt_name_none_or_str: verified @@ -15,7 +17,7 @@ py_assertion: unknown py_assertion: unknown -my_f_py_assertion_35: verified +py_assertion: unknown -my_f_str_py_assertion_57: unknown +py_assertion: unknown diff --git a/StrataTest/Languages/Python/tests/test_datetime.py b/StrataTest/Languages/Python/tests/test_datetime.py index 78ba6c7627..4a82e38621 100644 --- a/StrataTest/Languages/Python/tests/test_datetime.py +++ b/StrataTest/Languages/Python/tests/test_datetime.py @@ -1,19 +1,30 @@ from datetime import datetime, date, timedelta -def my_f(start: datetime, end: datetime): - assert start <= end +# def my_f(start: datetime, end: datetime): +# assert start <= end -def my_f_str(start: str, end : str): - format_string : str = "%Y-%m-%d" - start_dt : datetime = datetime.strptime(start, format_string) - end_dt : datetime = datetime.strptime(end, format_string) - assert start_dt <= end_dt +# def my_f_str(start: str, end : str): +# format_string : str = "%Y-%m-%d" +# start_dt : datetime = datetime.strptime(start, format_string) +# end_dt : datetime = datetime.strptime(end, format_string) +# assert start_dt <= end_dt now : datetime = datetime.now() end : datetime = datetime.date(now) delta : timedelta = timedelta(days=7) start : datetime = end - delta -my_f(start, end) +# my_f(start, end) -my_f_str(str(start), str(end)) \ No newline at end of file +# my_f_str(str(start), str(end)) + +assert start <= end + +# These require mbqi / autoconfig +start_dt : datetime = datetime.strptime(str(start), "%Y-%m-%d") +assert start_dt == start +end_dt : datetime = datetime.strptime(str(end), "%Y-%m-%d") +assert end_dt == end + +# This is unknown +assert start_dt <= end_dt From 872a74686db4a2585f5680f63aa9d83bcf7d7b83 Mon Sep 17 00:00:00 2001 From: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Date: Tue, 16 Dec 2025 18:34:02 -0600 Subject: [PATCH 49/68] Fix pyAnalyze CI (#278) Fix pyAnalyze CI. The CI was printing an error message, but not exiting with an error code. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- .../Languages/Python/expected/test_datetime.expected | 5 ++--- .../Python/expected/test_function_def_calls.expected | 8 +++++++- .../expected/test_precondition_verification.expected | 6 ++++++ StrataTest/Languages/Python/run_py_analyze.sh | 5 +++++ .../Languages/Python/tests/test_function_def_calls.py | 2 +- 5 files changed, 21 insertions(+), 5 deletions(-) diff --git a/StrataTest/Languages/Python/expected/test_datetime.expected b/StrataTest/Languages/Python/expected/test_datetime.expected index 6c6f304442..9ca7ad8bfc 100644 --- a/StrataTest/Languages/Python/expected/test_datetime.expected +++ b/StrataTest/Languages/Python/expected/test_datetime.expected @@ -1,8 +1,8 @@ -ensure_timedelta_sign_matches: verified - datetime_now_ensures_0: verified +datetime_utcnow_ensures_0: verified + ensures_str_strp_reverse: verified assert_name_is_foo: verified @@ -20,4 +20,3 @@ py_assertion: unknown py_assertion: unknown py_assertion: unknown - diff --git a/StrataTest/Languages/Python/expected/test_function_def_calls.expected b/StrataTest/Languages/Python/expected/test_function_def_calls.expected index 7ce880cc68..ebb5e87f90 100644 --- a/StrataTest/Languages/Python/expected/test_function_def_calls.expected +++ b/StrataTest/Languages/Python/expected/test_function_def_calls.expected @@ -1,4 +1,10 @@ +datetime_now_ensures_0: verified + +datetime_utcnow_ensures_0: verified + +ensures_str_strp_reverse: verified + assert_name_is_foo: verified assert_opt_name_none_or_str: verified @@ -8,7 +14,7 @@ assert_opt_name_none_or_bar: verified ensures_maybe_except_none: verified test_helper_procedure_assert_name_is_foo_3: failed -CEx: ($__s8, "") +CEx: ($__s49, "") test_helper_procedure_assert_opt_name_none_or_str_4: verified diff --git a/StrataTest/Languages/Python/expected/test_precondition_verification.expected b/StrataTest/Languages/Python/expected/test_precondition_verification.expected index 36b86b4dae..f62d653e19 100644 --- a/StrataTest/Languages/Python/expected/test_precondition_verification.expected +++ b/StrataTest/Languages/Python/expected/test_precondition_verification.expected @@ -1,4 +1,10 @@ +datetime_now_ensures_0: verified + +datetime_utcnow_ensures_0: verified + +ensures_str_strp_reverse: verified + assert_name_is_foo: verified assert_opt_name_none_or_str: verified diff --git a/StrataTest/Languages/Python/run_py_analyze.sh b/StrataTest/Languages/Python/run_py_analyze.sh index 252cdd10eb..d15bac8b67 100755 --- a/StrataTest/Languages/Python/run_py_analyze.sh +++ b/StrataTest/Languages/Python/run_py_analyze.sh @@ -1,5 +1,7 @@ #!/bin/bash +failed=0 + for test_file in tests/test_*.py; do if [ -f "$test_file" ]; then base_name=$(basename "$test_file" .py) @@ -14,7 +16,10 @@ for test_file in tests/test_*.py; do if ! echo "$output" | diff -q "$expected_file" - > /dev/null; then echo "ERROR: Analysis output for $base_name does not match expected result" echo "$output" | diff "$expected_file" - + failed=1 fi fi fi done + +exit $failed diff --git a/StrataTest/Languages/Python/tests/test_function_def_calls.py b/StrataTest/Languages/Python/tests/test_function_def_calls.py index 25c88088a5..31276d736b 100644 --- a/StrataTest/Languages/Python/tests/test_function_def_calls.py +++ b/StrataTest/Languages/Python/tests/test_function_def_calls.py @@ -2,7 +2,7 @@ # Test function defs -def my_f(s: str) -> None: +def my_f(s: str): test_helper.procedure(s) def main(): From 492cd53b70795dcecdc06115396b2b2a0063702e Mon Sep 17 00:00:00 2001 From: Vidas Jocius <205684404+vjjocius@users.noreply.github.com> Date: Tue, 16 Dec 2025 19:36:56 -0500 Subject: [PATCH 50/68] Hide counterexamples when verbose flag is false (#271) Fixes https://github.com/strata-org/Strata/issues/241 When `Options.quiet` is used (verbose := false), counterexamples are no longer displayed in verification output. This reduces the brittleness of the tests when different solver versions are used. ## Changes - Added `verbose` field to `VCResult` structure - Created `Result.formatWithVerbose` method to conditionally show counterexamples - Updated all `VCResult` creation sites to pass the verbose flag - Updated test expectations for quiet mode (removed CEx from expected output) All tests pass successfully. --------- Co-authored-by: Vidas Jocius Co-authored-by: Shilpi Goel --- .../Boogie/Examples/FailingAssertion.lean | 6 ---- .../Boogie/Examples/RealBitVector.lean | 2 -- .../Examples/RemoveIrrelevantAxioms.lean | 16 ---------- Strata/Languages/Boogie/Verifier.lean | 32 ++++++++++++------- 4 files changed, 20 insertions(+), 36 deletions(-) diff --git a/Strata/Languages/Boogie/Examples/FailingAssertion.lean b/Strata/Languages/Boogie/Examples/FailingAssertion.lean index b555fdda72..ec5a5e99a2 100644 --- a/Strata/Languages/Boogie/Examples/FailingAssertion.lean +++ b/Strata/Languages/Boogie/Examples/FailingAssertion.lean @@ -110,32 +110,26 @@ info: Obligation assert_0: could not be proved! Result: failed -CEx: ($__x0, (- 1)) Obligation assert_1: could not be proved! Result: failed -CEx: ($__x0, (- 1)) Obligation assert_2: could not be proved! Result: failed -CEx: ($__x0, 7) --- info: Obligation: assert_0 Result: failed -CEx: ($__x0, (- 1)) Obligation: assert_1 Result: failed -CEx: ($__x0, (- 1)) Obligation: assert_2 Result: failed -CEx: ($__x0, 7) -/ #guard_msgs in #eval verify "cvc5" failingThrice Inhabited.default Options.quiet diff --git a/Strata/Languages/Boogie/Examples/RealBitVector.lean b/Strata/Languages/Boogie/Examples/RealBitVector.lean index 646a1b406c..62377d5c90 100644 --- a/Strata/Languages/Boogie/Examples/RealBitVector.lean +++ b/Strata/Languages/Boogie/Examples/RealBitVector.lean @@ -212,7 +212,6 @@ info: Obligation bad_shift: could not be proved! Result: failed -CEx: ($__x0, #b10011001) ($__y1, #b00000010) --- info: Obligation: add_comm @@ -235,7 +234,6 @@ Result: verified Obligation: bad_shift Result: failed -CEx: ($__x0, #b10011001) ($__y1, #b00000010) -/ #guard_msgs in #eval verify "cvc5" bvMoreOpsPgm Inhabited.default Options.quiet diff --git a/Strata/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean b/Strata/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean index 4719d56a49..16ff84ac8c 100644 --- a/Strata/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean +++ b/Strata/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean @@ -101,49 +101,41 @@ Result: unknown Obligation assert_4: could not be proved! Result: failed -CEx: ($__x0, 3) Obligation assert_5: could not be proved! Result: failed -CEx: ($__x0, 3) Obligation assert_6: could not be proved! Result: failed -CEx: ($__x1, 3) Obligation assert_7: could not be proved! Result: failed -CEx: ($__x1, 3) Obligation assert_8: could not be proved! Result: failed -CEx: ($__x2, 3) Obligation assert_9: could not be proved! Result: failed -CEx: ($__x2, 3) Obligation assert_10: could not be proved! Result: failed -CEx: ($__x3, 3) Obligation assert_11: could not be proved! Result: failed -CEx: ($__x3, 3) --- info: Obligation: assert_0 @@ -160,35 +152,27 @@ Result: unknown Obligation: assert_4 Result: failed -CEx: ($__x0, 3) Obligation: assert_5 Result: failed -CEx: ($__x0, 3) Obligation: assert_6 Result: failed -CEx: ($__x1, 3) Obligation: assert_7 Result: failed -CEx: ($__x1, 3) Obligation: assert_8 Result: failed -CEx: ($__x2, 3) Obligation: assert_9 Result: failed -CEx: ($__x2, 3) Obligation: assert_10 Result: failed -CEx: ($__x3, 3) Obligation: assert_11 Result: failed -CEx: ($__x3, 3) -/ #guard_msgs in #eval verify "z3" irrelevantAxiomsTestPgm Inhabited.default {Options.quiet with removeIrrelevantAxioms := true} diff --git a/Strata/Languages/Boogie/Verifier.lean b/Strata/Languages/Boogie/Verifier.lean index 87ad931603..55bbd31f1e 100644 --- a/Strata/Languages/Boogie/Verifier.lean +++ b/Strata/Languages/Boogie/Verifier.lean @@ -99,12 +99,15 @@ inductive Result where | err (msg : String) deriving DecidableEq, Repr +def Result.formatWithVerbose (r : Result) (verbose : Bool) : Format := + match r with + | .sat cex => if verbose then f!"failed\nCEx: {cex}" else "failed" + | .unsat => f!"verified" + | .unknown => f!"unknown" + | .err msg => f!"err {msg}" + instance : ToFormat Result where - format r := match r with - | .sat cex => f!"failed\nCEx: {cex}" - | .unsat => f!"verified" - | .unknown => f!"unknown" - | .err msg => f!"err {msg}" + format r := r.formatWithVerbose true def VC_folder_name: String := "vcs" @@ -153,10 +156,15 @@ structure VCResult where obligation : Imperative.ProofObligation Expression result : Result := .unknown estate : EncoderState := EncoderState.init + verbose : Bool := true + +def VCResult.formatWithVerbose (r : VCResult) (verbose : Bool) : Format := + f!"Obligation: {r.obligation.label}\n\ + Result: {r.result.formatWithVerbose verbose}" instance : ToFormat VCResult where format r := f!"Obligation: {r.obligation.label}\n\ - Result: {r.result}" + Result: {r.result.formatWithVerbose r.verbose}" -- EState : {repr r.estate.terms} abbrev VCResults := Array VCResult @@ -229,7 +237,7 @@ def verifySingleEnv (smtsolver : String) (pE : Program × Env) (options : Option -- We don't need the SMT solver if PE (partial evaluation) is enough to -- reduce the consequent to true. if obligation.obligation.isTrue then - results := results.push { obligation, result := .unsat } + results := results.push { obligation, result := .unsat, verbose := options.verbose } continue -- If PE determines that the consequent is false and the path conditions -- are empty, then we can immediate report a verification failure. Note @@ -241,7 +249,7 @@ def verifySingleEnv (smtsolver : String) (pE : Program × Env) (options : Option dbg_trace f!"\n\nObligation {obligation.label}: failed!\ \n\nResult obtained during partial evaluation.\ {if options.verbose then prog else ""}" - results := results.push { obligation, result := .sat .empty } + results := results.push { obligation, result := .sat .empty, verbose := options.verbose } if options.stopOnFirstError then break let obligation := if options.removeIrrelevantAxioms then @@ -265,7 +273,7 @@ def verifySingleEnv (smtsolver : String) (pE : Program × Env) (options : Option {err}\n\n\ Evaluated program: {p}\n\n" let _ ← dbg_trace msg - results := results.push { obligation, result := .err msg } + results := results.push { obligation, result := .err msg, verbose := options.verbose } if options.stopOnFirstError then break | .ok (terms, ctx) => -- let ufids := (ctx.ufs.map (fun f => f.id)) @@ -287,15 +295,15 @@ def verifySingleEnv (smtsolver : String) (pE : Program × Env) (options : Option terms ctx) match ans with | .ok (result, estate) => - results := results.push { obligation, result, estate } + results := results.push { obligation, result, estate, verbose := options.verbose } if result ≠ .unsat then let prog := f!"\n\nEvaluated program:\n{p}" dbg_trace f!"\n\nObligation {obligation.label}: could not be proved!\ - \n\nResult: {result}\ + \n\nResult: {result.formatWithVerbose options.verbose}\ {if options.verbose then prog else ""}" if options.stopOnFirstError then break | .error e => - results := results.push { obligation, result := .err (toString e) } + results := results.push { obligation, result := .err (toString e), verbose := options.verbose } let prog := f!"\n\nEvaluated program:\n{p}" dbg_trace f!"\n\nObligation {obligation.label}: solver error!\ \n\nError: {e}\ From 30d59b190dc1fc3a7e0668690f9c6b3721cbc97c Mon Sep 17 00:00:00 2001 From: Cody Roux Date: Tue, 16 Dec 2025 19:42:04 -0500 Subject: [PATCH 51/68] Boogie lexpr gen + generator bug fix (#272) *Issue #, if available:* *Description of changes:* This PR fixes a minor bug in which incorrectly typed `LExpr`s could be generated (with free variables not in context). It also: - Avoids generating lambdas - Improves generating terms that actually use functions in the factory, by introducing redundant typing rules that encourage generating fully applied unary and binary functions. - Generate bit-vector constants with width various powers of 2. - Writes a bare bones generator for the Boogie functional fragment. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Juneyoung Lee <136006969+aqjune-aws@users.noreply.github.com> Co-authored-by: Shilpi Goel --- Strata/DL/Lambda/TestGen.lean | 350 +++++++++++++++--- StrataTest/Languages/Boogie/ExprEvalTest.lean | 28 ++ 2 files changed, 323 insertions(+), 55 deletions(-) diff --git a/Strata/DL/Lambda/TestGen.lean b/Strata/DL/Lambda/TestGen.lean index 4e80698a08..187aa8f45f 100644 --- a/Strata/DL/Lambda/TestGen.lean +++ b/Strata/DL/Lambda/TestGen.lean @@ -145,16 +145,22 @@ instance {T} [Arbitrary T.base.Metadata] [Arbitrary T.base.IDMeta] [Arbitrary T. open Lambda open LTy + +-- Comment this out when depending on Chamelean open TestGen -- We make a bunch of functions inductive predicates to play nice with Chamelean. inductive MapFind : Map α β → α → β → Prop where | hd : MapFind ((x, y) :: m) x y -| tl : MapFind m x y → MapFind (p :: m) x y +| tl : p.fst ≠ x → MapFind m x y → MapFind (p :: m) x y + +inductive MapNotFound : Map α β → α → Prop where +| nil : MapNotFound [] x +| cons : z ≠ x → MapNotFound m x → MapNotFound ((z, w) :: m) x inductive MapsFind : Maps α β → α → β → Prop where | hd : MapFind m x y → MapsFind (m :: ms) x y -| tl : MapsFind ms x y → MapsFind (m :: ms) x y +| tl : MapNotFound m x → MapsFind ms x y → MapsFind (m :: ms) x y -- Sadly, we need these versions as well for the time being, because -- we can only generate one output at a time for a given inductive constraint. @@ -177,10 +183,6 @@ inductive MapsReplace : Maps α β → α → β → Maps α β → Prop where -- We do redundant work here but it's ok | cons : MapReplace m x y m' → MapsReplace ms x y ms' → MapsReplace (m::ms) x y (m'::ms') -inductive MapNotFound : Map α β → α → Prop where -| nil : MapNotFound [] x -| cons : x ≠ z → MapNotFound m x → MapNotFound ((z, w) :: m) x - inductive MapsNotFound : Maps α β → α → Prop where | nil : MapsNotFound [] x | cons : MapNotFound m x → MapsNotFound ms x → MapsNotFound (m::ms) x @@ -200,7 +202,6 @@ instance instStringSuchThatIsInt : ArbitrarySizedSuchThat String (fun s => s.isI let P : String → Prop := fun s => s.isInt Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 --- FIXME: remove this def ArrayFind (a : Array α) (x : α) := x ∈ a instance instArrayFindSuchThat {α} {a} : ArbitrarySizedSuchThat α (fun x => ArrayFind a x) where @@ -210,38 +211,70 @@ instance instArrayFindSuchThat {α} {a} : ArbitrarySizedSuchThat α (fun x => Ar return a[i.val] +inductive IsUnaryArg : LTy → LTy → LTy → Prop where +| mk (ty₁ ty₂ : LMonoTy) : IsUnaryArg (.forAll [] (.tcons "arrow" [ty₁, ty₂])) (.forAll [] ty₁) (.forAll [] ty₂) + +inductive IsBinaryArg : LTy → (LTy × LTy) → LTy → Prop where +| mk (ty₁ ty₂ ty₃ : LMonoTy) : IsBinaryArg (.forAll [] (.tcons "arrow" [ty₁, .tcons "arrow" [ty₂, ty₃]])) ((.forAll [] ty₁), (.forAll [] ty₂)) (.forAll [] ty₃) + -- Compare `LExpr.HasType` in `LExprTypeSpec.lean` +-- Parameters for terms without metadata +abbrev TrivialParams : LExprParams := ⟨Unit, Unit⟩ + +def varClose (k : Nat) (x : IdentT LMonoTy TrivialParams.IDMeta) (e : LExpr TrivialParams.mono) : LExpr TrivialParams.mono := + match e with + | .const m c => .const m c + | .op m o ty => .op m o ty + | .bvar m i => .bvar m i + | .fvar m y yty => if x.fst == y && (yty == x.snd) then + (.bvar m k) else (.fvar m y yty) + | .abs m ty e' => .abs m ty (varClose (k + 1) x e') + | .quant m qk ty tr' e' => .quant m qk ty (varClose (k + 1) x tr') (varClose (k + 1) x e') + | .app m e1 e2 => .app m (varClose k x e1) (varClose k x e2) + | .ite m c t e => .ite m (varClose k x c) (varClose k x t) (varClose k x e) + | .eq m e1 e2 => .eq m (varClose k x e1) (varClose k x e2) + +def LFunc.type! (f : (LFunc T)) : LTy := + let input_tys := f.inputs.values + let output_tys := Lambda.LMonoTy.destructArrow f.output + match input_tys with + | [] => .forAll f.typeArgs f.output + | ity :: irest => + .forAll f.typeArgs (Lambda.LMonoTy.mkArrow ity (irest ++ output_tys)) + -- We massage the `HasType` definition to be more amenable to generation. The main differences are that -- polymorphism is not supported, and we tend to move function applications in the "output" position to the conclusion. -- This avoids an additional costly check in the hypothesis. -inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C: LContext T) : (TContext T.IDMeta) → LExpr T.mono → LTy → Prop where +inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C : LContext T) : (TContext T.IDMeta) → LExpr T.mono → LTy → Prop where | tbool_const : ∀ Γ m b, + C.knownTypes.containsName "bool" → HasType C Γ (.boolConst m b) (.forAll [] .bool) | tint_const : ∀ Γ m n, + C.knownTypes.containsName "int" → HasType C Γ (.intConst m n) (.forAll [] .int) | treal_const : ∀ Γ m r, + C.knownTypes.containsName "real" → HasType C Γ (.realConst m r) (.forAll [] .real) | tstr_const : ∀ Γ m s, + C.knownTypes.containsName "string" → HasType C Γ (.strConst m s) (.forAll [] .string) | tbitvec_const : ∀ Γ m n b, + C.knownTypes.containsName "bitvec" → HasType C Γ (.bitvecConst m n b) (.forAll [] (.bitvec n)) | tvar : ∀ Γ m x ty, MapsFind Γ.types x ty → HasType C Γ (.fvar m x none) ty | tabs : ∀ Γ Γ' m x x_ty e e_ty, - MapsInsert Γ.types x (.forAll [] x_ty : LTy) Γ' → + MapsInsert Γ.types (id x) (.forAll [] x_ty : LTy) Γ' → HasType C { Γ with types := Γ'} e (.forAll [] e_ty) → HasType C Γ (.abs m .none <| LExpr.varClose 0 (x, none) e) -- We close in the conclusion rather than opening in the hyps. (.forAll [] (.tcons "arrow" [x_ty, e_ty])) | tapp : ∀ Γ m e1 e2 t1 t2, - (h1 : LTy.isMonoType t1) → - (h2 : LTy.isMonoType t2) → - HasType C Γ e1 (.forAll [] (.tcons "arrow" [(LTy.toMonoType t2 h2), - (LTy.toMonoType t1 h1)])) → - HasType C Γ e2 t2 → - HasType C Γ (.app m e1 e2) t1 + HasType C Γ e1 (.forAll [] (.tcons "arrow" [t2, t1])) → + HasType C Γ e2 (.forAll [] t2) → + HasType C Γ (.app m e1 e2) (.forAll [] t1) | tif : ∀ Γ m c e1 e2 ty, HasType C Γ c (.forAll [] .bool) → @@ -255,15 +288,24 @@ inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C: LContext T) : (TCo HasType C Γ (.eq m e1 e2) (.forAll [] .bool) | top: ∀ Γ m f ty, + ty = (LFunc.type! f) → ArrayFind C.functions f → HasType C Γ (.op m f.name none) ty - -- -- We only generate monomorphic types for now + | top₁: ∀ Γ m f ty₁ ty₂, + ArrayFind C.functions f → + IsUnaryArg (LFunc.type! f) ty₁ ty₂ → + HasType C Γ t₁ ty₁ → + HasType C Γ (.app m (.op m f.name none) t₁) ty₂ --- -- We hand write this for more readable type names -instance : Arbitrary TyIdentifier where - arbitrary := Gen.oneOf #[return "A", return "B", return "C", return "D"] + | top₂: ∀ Γ m f ty₁ ty₂ ty₃, + ArrayFind C.functions f → + IsBinaryArg (LFunc.type! f) (ty₁, ty₂) ty₃ → + HasType C Γ t₁ ty₁ → + HasType C Γ t₂ ty₂ → + HasType C Γ (.app m (.app m (.op m f.name none) t₁) t₂) ty₃ + -- -- We only generate monomorphic types for now -- -- We hand write this instance to control the base type names. instance : Arbitrary LMonoTy where @@ -280,7 +322,7 @@ instance : Arbitrary LMonoTy where let ty2 ← aux n' return .tcons "arrow" [ty1, ty2] else - let n ← Gen.chooseNatLt 0 4 (by simp) -- Keep things bounded + let n ← Gen.oneOf #[return 1, return 8, return 16, return 32, return 64] return .bitvec n do let ⟨size⟩ ← read @@ -431,13 +473,10 @@ instance instArbitrarySizedSuchThatFresh {T : LExprParams} [DecidableEq T.IDMeta let pre ← Arbitrary.arbitrary return getFreshIdent pre allTyVars --- Parameters for terms without metadata -abbrev trivialParams : LExprParams := ⟨Unit, Unit⟩ - #guard_msgs(drop info) in #eval let ty := .forAll [] (LMonoTy.bool) - let ctx : TContext trivialParams.IDMeta := ⟨[[(⟨"foo", ()⟩, ty)]], []⟩ + let ctx : TContext TrivialParams.IDMeta := ⟨[[(⟨"foo", ()⟩, ty)]], []⟩ let P : TyIdentifier → Prop := fun s : String => TContext.isFresh s ctx Gen.runUntil .none (@ArbitrarySizedSuchThat.arbitrarySizedST _ P (@instArbitrarySizedSuchThatFresh _ _ ctx) 10) 10 @@ -761,19 +800,123 @@ instance [Plausible.Arbitrary α_1] [DecidableEq α_1] [Plausible.Arbitrary β_1 let P : String × Nat → Prop := fun m => MapsFind₂ [[], []] m Gen.runUntil (.some 10) (ArbitrarySizedSuchThat.arbitrarySizedST P 10) 10 + +-- -- This works +-- derive_generator fun ty ty₂ => ∃ ty₁, IsUnaryArg ty ty₁ ty₂ + +instance : ArbitrarySizedSuchThat LTy (fun ty₁_1 => @IsUnaryArg ty_1 ty₁_1 ty₂_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (ty_1 : LTy) (ty₂_1 : LTy) : Plausible.Gen LTy := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match ty₂_1 with + | Lambda.LTy.forAll (List.nil) ty₂ => + match ty_1 with + | + Lambda.LTy.forAll (List.nil) + (Lambda.LMonoTy.tcons unk_0 (List.cons ty₁ (List.cons ty₂_1_1 (List.nil)))) => + match @DecOpt.decOpt (@Eq (@Lambda.LMonoTy) ty₂_1_1 ty₂) _ initSize with + | Except.ok Bool.true => + match @DecOpt.decOpt (@Eq (@String) unk_0 "arrow") _ initSize with + | Except.ok Bool.true => return Lambda.LTy.forAll (List.nil) ty₁ + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ _size' => + GeneratorCombinators.backtrack + [(1, + match ty₂_1 with + | Lambda.LTy.forAll (List.nil) ty₂ => + match ty_1 with + | + Lambda.LTy.forAll (List.nil) + (Lambda.LMonoTy.tcons unk_0 (List.cons ty₁ (List.cons ty₂_1_1 (List.nil)))) => + match @DecOpt.decOpt (@Eq (@Lambda.LMonoTy) ty₂_1_1 ty₂) _ initSize with + | Except.ok Bool.true => + match @DecOpt.decOpt (@Eq (@String) unk_0 "arrow") _ initSize with + | Except.ok Bool.true => return Lambda.LTy.forAll (List.nil) ty₁ + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + ]) + fun size => aux_arb size size ty_1 ty₂_1 + + +-- -- This works +-- derive_generator fun ty ty₂ => ∃ ty₁, IsUnaryArg ty ty₁ ty₂ + +instance : ArbitrarySizedSuchThat (LTy × LTy) (fun ty_pair_1 => @IsBinaryArg ty_1 ty_pair_1 ty₃_1) where + arbitrarySizedST := + let rec aux_arb (initSize : Nat) (size : Nat) (ty_1 : LTy) (ty₃_1 : LTy) : Plausible.Gen (LTy × LTy) := + (match size with + | Nat.zero => + GeneratorCombinators.backtrack + [(1, + match ty₃_1 with + | Lambda.LTy.forAll (List.nil) ty₃ => + match ty_1 with + | + Lambda.LTy.forAll (List.nil) + (Lambda.LMonoTy.tcons unk_0 + (List.cons ty₁ + (List.cons (Lambda.LMonoTy.tcons unk_1 (List.cons ty₂ (List.cons ty₃_1_1 (List.nil)))) + (List.nil)))) => + match @DecOpt.decOpt (@Eq (@Lambda.LMonoTy) ty₃_1_1 ty₃) _ initSize with + | Except.ok Bool.true => + match @DecOpt.decOpt (@Eq (@String) unk_1 "arrow") _ initSize with + | Except.ok Bool.true => + match @DecOpt.decOpt (@Eq (@String) unk_0 "arrow") _ initSize with + | Except.ok Bool.true => + return Prod.mk (Lambda.LTy.forAll (List.nil) ty₁) (Lambda.LTy.forAll (List.nil) ty₂) + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure)] + | Nat.succ _size' => + GeneratorCombinators.backtrack + [(1, + match ty₃_1 with + | Lambda.LTy.forAll (List.nil) ty₃ => + match ty_1 with + | + Lambda.LTy.forAll (List.nil) + (Lambda.LMonoTy.tcons unk_0 + (List.cons ty₁ + (List.cons (Lambda.LMonoTy.tcons unk_1 (List.cons ty₂ (List.cons ty₃_1_1 (List.nil)))) + (List.nil)))) => + match @DecOpt.decOpt (@Eq (@Lambda.LMonoTy) ty₃_1_1 ty₃) _ initSize with + | Except.ok Bool.true => + match @DecOpt.decOpt (@Eq (@String) unk_1 "arrow") _ initSize with + | Except.ok Bool.true => + match @DecOpt.decOpt (@Eq (@String) unk_0 "arrow") _ initSize with + | Except.ok Bool.true => + return Prod.mk (Lambda.LTy.forAll (List.nil) ty₁) (Lambda.LTy.forAll (List.nil) ty₂) + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + ]) + fun size => aux_arb size size ty_1 ty₃_1 + + -- We don't quite handle this case yet, if `α` is a type variable. -- Monomorphising `α` and removing the `DecidableEq` constraint gives us an almost perfect generator! -- derive_generator (fun α eqdec fact ctx ty => ∃ t, @HasType α eqdec fact ctx t ty) - -- For now though, we hand write a specialized version, without certain constants and without polymorphism. instance {T : LExprParams} - {fact_1 : LContext T} + {C : LContext T} {ctx_1 : TContext T.IDMeta} [Arbitrary T.mono.base.Metadata] [Arbitrary T.IDMeta] - [DecidableEq T.IDMeta] : ArbitrarySizedSuchThat (LExpr T.mono) (fun t_1 => HasType fact_1 ctx_1 t_1 ty_1) where + [DecidableEq T.IDMeta] : ArbitrarySizedSuchThat (LExpr T.mono) (fun t_1 => HasType C ctx_1 t_1 ty_1) where arbitrarySizedST := let rec aux_arb (initSize : Nat) (size : Nat) (ctx_1 : TContext T.IDMeta) (ty_1 : LTy) : Plausible.Gen (LExpr T.mono) := @@ -783,21 +926,54 @@ instance {T : LExprParams} [(1, match ty_1 with | Lambda.LTy.forAll (List.nil) .bool => do + if C.knownTypes.containsName "bool" then let m ← Arbitrary.arbitrary return .boolConst m true + else MonadExcept.throw Plausible.Gen.genericFailure | _ => MonadExcept.throw Plausible.Gen.genericFailure), (1, match ty_1 with | Lambda.LTy.forAll (List.nil) .bool => do + if C.knownTypes.containsName "bool" then let m ← Arbitrary.arbitrary return .boolConst m false + else MonadExcept.throw Plausible.Gen.genericFailure | _ => MonadExcept.throw Plausible.Gen.genericFailure), (1, match ty_1 with | Lambda.LTy.forAll (List.nil) .int => do + if C.knownTypes.containsName "int" then let m ← Arbitrary.arbitrary let n ← Arbitrary.arbitrary return .intConst m n + else MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) (.bitvec n) => do + if C.knownTypes.containsName "bitvec" then + let m ← Arbitrary.arbitrary + let bv ← Arbitrary.arbitrary + return .bitvecConst m n bv + else MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .real => do + if C.knownTypes.containsName "real" then + let m ← Arbitrary.arbitrary + let r ← Arbitrary.arbitrary + return .realConst m r + else MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .string => do + if C.knownTypes.containsName "string" then + let m ← Arbitrary.arbitrary + let s ← Arbitrary.arbitrary + return .strConst m s + else MonadExcept.throw Plausible.Gen.genericFailure | _ => MonadExcept.throw Plausible.Gen.genericFailure), (1, do let (x : Identifier _ × LTy) ← @@ -816,22 +992,56 @@ instance {T : LExprParams} (1, match ty_1 with | Lambda.LTy.forAll (List.nil) .bool => do + if C.knownTypes.containsName "bool" then let m ← Arbitrary.arbitrary return .boolConst m true + else MonadExcept.throw Plausible.Gen.genericFailure | _ => MonadExcept.throw Plausible.Gen.genericFailure), (1, match ty_1 with | Lambda.LTy.forAll (List.nil) .bool => do + if C.knownTypes.containsName "bool" then let m ← Arbitrary.arbitrary return .boolConst m false + else MonadExcept.throw Plausible.Gen.genericFailure | _ => MonadExcept.throw Plausible.Gen.genericFailure), (1, match ty_1 with | Lambda.LTy.forAll (List.nil) .int => do + if C.knownTypes.containsName "int" then let m ← Arbitrary.arbitrary let n ← Arbitrary.arbitrary return .intConst m n + else MonadExcept.throw Plausible.Gen.genericFailure | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) (.bitvec n) => do + if C.knownTypes.containsName "bitvec" then + let m ← Arbitrary.arbitrary + let bv ← Arbitrary.arbitrary + return .bitvecConst m n bv + else MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .real => do + if C.knownTypes.containsName "real" then + let m ← Arbitrary.arbitrary + let r ← Arbitrary.arbitrary + return .realConst m r + else MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (1, + match ty_1 with + | Lambda.LTy.forAll (List.nil) .string => do + if C.knownTypes.containsName "string" then + let m ← Arbitrary.arbitrary + let s ← Arbitrary.arbitrary + return .strConst m s + else MonadExcept.throw Plausible.Gen.genericFailure + | _ => MonadExcept.throw Plausible.Gen.genericFailure), + (size', do let m ← Arbitrary.arbitrary let (x : Identifier _ × LTy) ← @@ -841,7 +1051,7 @@ instance {T : LExprParams} return Lambda.LExpr.fvar m x.fst none else throw Gen.genericFailure), - (Nat.succ size', + (0, -- FIXME: for now we avoid generating lambdas for the boogie translator. match ty_1 with | Lambda.LTy.forAll (List.nil) @@ -896,21 +1106,49 @@ instance {T : LExprParams} let m ← Arbitrary.arbitrary return Lambda.LExpr.eq m e1 e2 | _ => MonadExcept.throw Plausible.Gen.genericFailure), - (10, do + (1, do let (f : LFunc _) ← @ArbitrarySizedSuchThat.arbitrarySizedST _ (fun (f : LFunc _) => - @ArrayFind (@Lambda.LFunc _) (@Lambda.LContext.functions _ fact_1) f) + @ArrayFind (@Lambda.LFunc _) (@Lambda.LContext.functions _ C) f) _ initSize; do match f.type with | .ok f_ty => - if f_ty = ty_1 then do + if f_ty = ty_1 then do let m ← Arbitrary.arbitrary return Lambda.LExpr.op m f.name (Option.none) else throw Plausible.Gen.genericFailure | _ => throw Plausible.Gen.genericFailure - ) + ), + (10, do + let (f : LFunc T) ← + @ArbitrarySizedSuchThat.arbitrarySizedST _ + (fun (f : LFunc T) => + @ArrayFind (@Lambda.LFunc T) (@Lambda.LContext.functions T C) + f) + _ initSize; + let (ty₁ : LTy) ← @ArbitrarySizedSuchThat.arbitrarySizedST _ (fun (ty₁ : LTy) => @IsUnaryArg (@LFunc.type! T f) ty₁ ty_1) _ initSize; + let (t₁ : LExpr (LExprParams.mono T)) ← aux_arb initSize size' ctx_1 ty₁; + let (m : _) ← Plausible.Arbitrary.arbitrary; + return Lambda.LExpr.app m (Lambda.LExpr.op m f.name (Option.none)) t₁), + (10, do + let (f : LFunc T) ← + @ArbitrarySizedSuchThat.arbitrarySizedST _ + (fun (f : LFunc T) => + @ArrayFind (@Lambda.LFunc T) + (@Lambda.LContext.functions T C) f) + _ initSize; + do + let vty₁_ty₂ ← + @ArbitrarySizedSuchThat.arbitrarySizedST _ + (fun vty₁_ty₂ => @IsBinaryArg (@LFunc.type! T f) vty₁_ty₂ ty_1) _ initSize; + match vty₁_ty₂ with + | @Prod.mk (@Lambda.LTy) (@Lambda.LTy) ty₁ ty₂ => do + let (t₂ : LExpr (LExprParams.mono T)) ← aux_arb initSize size' ctx_1 ty₂; + let (t₁ : LExpr (LExprParams.mono T)) ← aux_arb initSize size' ctx_1 ty₁; + let (m : _) ← Plausible.Arbitrary.arbitrary; + return Lambda.LExpr.app m (Lambda.LExpr.app m (Lambda.LExpr.op m f.name (Option.none)) t₁) t₂) ]) fun size => aux_arb size size ctx_1 ty_1 @@ -918,7 +1156,7 @@ instance {T : LExprParams} #guard_msgs(drop info) in #eval Gen.printSamples (Arbitrary.arbitrary : Gen LMonoTy) -abbrev example_lctx : LContext trivialParams := +abbrev example_lctx : LContext TrivialParams := { LContext.empty with knownTypes := KnownTypes.default functions := Lambda.IntBoolFactory } @@ -927,7 +1165,6 @@ abbrev example_ctx : TContext Unit := ⟨[[]], []⟩ -- abbrev example_ty : LTy := .forAll [] <| .tcons "bool" [] abbrev example_ty : LTy := .forAll [] <| .tcons "arrow" [.tcons "bool" [], .tcons "bool" []] --- FIXME /-- info: [[({ name := "y", metadata := () }, Lambda.LTy.forAll [] (Lambda.LMonoTy.tcons "int" []))]] -/ #guard_msgs(info) in #eval @@ -937,12 +1174,13 @@ abbrev example_ty : LTy := .forAll [] <| .tcons "arrow" [.tcons "bool" [], .tcon #guard_msgs(drop info) in #time #eval - let P : LExpr trivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty + let P : LExpr TrivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 4) 4 + def example_lstate := - { LState.init (T := trivialParams) with config := - { LState.init.config (T := trivialParams) with - factory := Lambda.IntBoolFactory (T := trivialParams)} + { LState.init (T := TrivialParams) with config := + { LState.init.config (T := TrivialParams) with + factory := Lambda.IntBoolFactory (T := TrivialParams)} } /-- `Monad` instance for List. @@ -986,25 +1224,26 @@ match shrinked with /-- info: [LExpr.fvar () { name := "x", metadata := () } none, LExpr.fvar () { name := "y", metadata := () } none] -/ #guard_msgs(info) in -#eval Shrinkable.shrink (LExpr.eq (T := trivialParams.mono) () (.fvar () "x" .none) (.fvar () "y" .none)) +#eval Shrinkable.shrink (LExpr.eq (T := TrivialParams.mono) () (.fvar () "x" .none) (.fvar () "y" .none)) /-- info: 2 -/ #guard_msgs(info) in #eval shrinkFun (fun n : Nat => n % 3 == 2) 42 -def annotate (t : LExpr trivialParams.mono) := +def annotate (t : LExpr TrivialParams.mono) := let state : TState := {} let env : TEnv Unit := { genEnv := ⟨example_ctx, state⟩ } LExpr.annotate example_lctx env t -def canAnnotate (t : LExpr trivialParams.mono) : Bool := +def canAnnotate (t : LExpr TrivialParams.mono) : Bool := (annotate t).isOk --- #eval do --- let P : LExpr trivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty --- let t ← Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 --- IO.println s!"Generated {t}" +#guard_msgs(drop info) in +#eval do + let P : LExpr TrivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty + let t ← Gen.runUntil (.some 10) (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 + IO.println s!"Generated {t}" /-- info: Generating terms of type @@ -1017,21 +1256,21 @@ in factory #guard_msgs in #eval do IO.println s!"Generating terms of type\n{example_ty}\nin context\n{repr example_ctx}\nin \ - factory\n{example_lctx.functions.map (fun f : LFunc trivialParams => f.name)}\n" + factory\n{example_lctx.functions.map (fun f : LFunc TrivialParams => f.name)}\n" for i in List.range 100 do - let P : LExpr trivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty - let t ← Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 + let P : LExpr TrivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t example_ty + let t ← Gen.runUntil (.some 1000) (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 -- IO.println s!"Generated {t}" if !(canAnnotate t) then let .error e := annotate t | throw <| IO.Error.userError "Unreachable" IO.println s!"FAILED({i}): {e}\n{t}\n\nSHRUNK TO:\n{shrinkFun (not ∘ canAnnotate) t}\n\n" -def isIntConst (t : LExpr trivialParams.mono) : Bool := +def isIntConst (t : LExpr TrivialParams.mono) : Bool := match t with | .const _ (.intConst _) => true | _ => false -def reduces (t : LExpr trivialParams.mono) : Bool := +def reduces (t : LExpr TrivialParams.mono) : Bool := let t' := t.eval 1000 example_lstate isIntConst t' @@ -1046,9 +1285,10 @@ in factory #eval do IO.println s!"Generating terms of type\n{example_ty}\nin context\n{repr example_ctx}\nin \ factory\n{example_lctx.functions.map (fun f : LFunc _ => f.name)}\n" - for i in List.range 100 do - let P : LExpr trivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t (.forAll [] (.tcons "int" [])) - let t ← Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 - -- Unfortunately this *can* fail, if we compare two terms at arrow types. + for _i in List.range 100 do + let P : LExpr TrivialParams.mono → Prop := fun t => HasType example_lctx example_ctx t (.forAll [] (.tcons "int" [])) + let t ← Gen.runUntil (.some 1000) (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 + -- Unfortunately this *can* fail, if we compare two terms at arrow types, or try to take mod 0 etc. if !(reduces t) then - IO.println s!"NOT A VALUE({i}): {t}\nREDUCES TO\n{t.eval 10000 example_lstate}\n\n" + -- IO.println s!"NOT A VALUE({i}): {t}\nREDUCES TO\n{t.eval 10000 example_lstate}\n\n" + continue diff --git a/StrataTest/Languages/Boogie/ExprEvalTest.lean b/StrataTest/Languages/Boogie/ExprEvalTest.lean index 4d00d82d36..1c8835270c 100644 --- a/StrataTest/Languages/Boogie/ExprEvalTest.lean +++ b/StrataTest/Languages/Boogie/ExprEvalTest.lean @@ -16,6 +16,9 @@ import Strata.Languages.Boogie.Identifiers import Strata.Languages.Boogie.Options import Strata.Languages.Boogie.SMTEncoder import Strata.Languages.Boogie.Verifier +import Strata.DL.Lambda.TestGen +import Strata.DL.Lambda.PlausibleHelpers +import Plausible.Gen /-! This file does random testing of Boogie operations registered in factory, by (1) choosing random constant inputs to the operations @@ -181,9 +184,34 @@ open Lambda.LTy.Syntax #guard_msgs in #eval (checkValid (.app () (.app () (.op () (BoogieIdent.unres "Int.Add") .none) eb[#100]) eb[#50])) + -- This may take a while (~ 1min) #eval (checkFactoryOps false) +open Plausible TestGen + +deriving instance Arbitrary for Visibility + +def test_lctx : LContext BoogieLParams := +{ + LContext.empty with + functions := Boogie.Factory + knownTypes := Boogie.KnownTypes +} + +def test_ctx : TContext Visibility := ⟨[[]], []⟩ + +abbrev test_ty : LTy := .forAll [] <| .tcons "bool" [] + +#guard_msgs(drop all) in +#eval do + let P : LExpr BoogieLParams.mono → Prop := fun t => HasType test_lctx test_ctx t test_ty + let t ← Gen.runUntil .none (ArbitrarySizedSuchThat.arbitrarySizedST P 5) 5 + IO.println s!"Generated {t}" + let b ← checkValid t + if ¬ b then + IO.println s!"Invalid!" + end Tests end Boogie From 9efa44a7096bc6af92b70706856de535df74ba05 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 17 Dec 2025 13:14:48 +0100 Subject: [PATCH 52/68] Undo bad changes --- Strata.lean | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Strata.lean b/Strata.lean index 1e3c8180f1..dc39e7b693 100644 --- a/Strata.lean +++ b/Strata.lean @@ -16,6 +16,7 @@ import Strata.DL.Lambda.Lambda import Strata.DL.Imperative.Imperative /- Boogie -/ +import Strata.Languages.Boogie.Examples.Examples import Strata.Languages.Boogie.StatementSemantics /- CSimp -/ @@ -24,6 +25,7 @@ import Strata.Languages.C_Simp.Examples.Examples /- Dyn -/ import Strata.Languages.Dyn.Examples.Examples + /- Code Transforms -/ import Strata.Transform.CallElimCorrect import Strata.Transform.DetToNondetCorrect From e328a48264d341d07fc69a3b4348c875989307ab Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Wed, 17 Dec 2025 16:27:03 +0100 Subject: [PATCH 53/68] Move examples from `Strata` to `StrataTest` to reduce build time (#274) Before: `lake build 468.95s user 168.55s system 285% cpu 3:42.94 total`, 413 jobs After: `lake build 422.01s user 119.11s system 300% cpu 2:59.78 total`, 360 jobs `lake test` covers the moved example files By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Juneyoung Lee <136006969+aqjune-aws@users.noreply.github.com> --- Strata.lean | 8 ---- .../Languages/Boogie/Examples/Examples.lean | 37 ------------------- .../Languages/C_Simp/Examples/Examples.lean | 13 ------- Strata/Languages/Dyn/Examples/Examples.lean | 15 -------- .../Boogie/Examples/AdvancedMaps.lean | 0 .../Boogie/Examples/AdvancedQuantifiers.lean | 0 .../Examples/AssertionDefaultNames.lean | 0 .../Languages/Boogie/Examples/Axioms.lean | 0 .../Boogie/Examples/BitVecParse.lean | 0 .../Boogie/Examples/DDMAxiomsExtraction.lean | 0 .../Boogie/Examples/DDMTransform.lean | 0 .../Boogie/Examples/FailingAssertion.lean | 0 .../Boogie/Examples/FreeRequireEnsure.lean | 0 .../Languages/Boogie/Examples/Functions.lean | 0 .../Boogie/Examples/GeneratedLabels.lean | 0 .../Languages/Boogie/Examples/Goto.lean | 0 .../Languages/Boogie/Examples/Havoc.lean | 0 .../Languages/Boogie/Examples/Loops.lean | 0 .../Languages/Boogie/Examples/Map.lean | 0 .../Languages/Boogie/Examples/Min.lean | 0 .../Boogie/Examples/OldExpressions.lean | 0 .../Boogie/Examples/PrecedenceCheck.lean | 0 .../Boogie/Examples/ProcedureCall.lean | 0 .../Boogie/Examples/Quantifiers.lean | 0 .../Examples/QuantifiersWithTypeAliases.lean | 0 .../Boogie/Examples/RealBitVector.lean | 0 .../Boogie/Examples/RecursiveProcIte.lean | 0 .../Languages/Boogie/Examples/Regex.lean | 0 .../Examples/RemoveIrrelevantAxioms.lean | 0 .../Languages/Boogie/Examples/SimpleProc.lean | 0 .../Languages/Boogie/Examples/String.lean | 0 .../Languages/Boogie/Examples/TypeAlias.lean | 0 .../Languages/Boogie/Examples/TypeDecl.lean | 0 .../Examples/TypeVarImplicitlyQuantified.lean | 0 .../Boogie/Examples/UnreachableAssert.lean | 0 .../Languages/C_Simp/Examples/Coprime.lean | 0 .../C_Simp/Examples/LinearSearch.lean | 0 .../Languages/C_Simp/Examples/LoopSimple.lean | 0 .../C_Simp/Examples/LoopTrivial.lean | 0 .../Languages/C_Simp/Examples/Min.lean | 0 .../Languages/C_Simp/Examples/SimpleTest.lean | 0 .../Languages/C_Simp/Examples/Trivial.lean | 0 .../Languages/Dyn/Examples/Arithmetic.lean | 0 .../Languages/Dyn/Examples/BasicTypes.lean | 0 .../Languages/Dyn/Examples/ControlFlow.lean | 0 .../Languages/Dyn/Examples/FunctionCalls.lean | 0 .../Languages/Dyn/Examples/HeapOps.lean | 0 .../Dyn/Examples/ListOperations.lean | 0 .../Languages/Dyn/Examples/StringOps.lean | 0 .../Languages/Dyn/Examples/Trivial.lean | 0 .../Dyn/Examples/TypeIntrospection.lean | 0 .../Fundamentals/1. AssertFalse.lr.st | 0 .../Fundamentals/10. ConstrainedTypes.lr.st | 0 .../2. NestedImpureStatements.lr.st | 0 .../Fundamentals/3. ControlFlow.lr.st | 0 .../Examples/Fundamentals/4. LoopJumps.lr.st | 0 .../Fundamentals/5. ProcedureCalls.lr.st | 0 .../Fundamentals/6. Preconditions.lr.st | 0 .../Examples/Fundamentals/7. Decreases.lr.st | 0 .../Fundamentals/8. Postconditions.lr.st | 0 .../Fundamentals/9. Nondeterministic.lr.st | 0 .../Examples/Objects/1. ImmutableFields.lr.st | 0 .../Examples/Objects/2. MutableFields.lr.st | 0 .../Examples/Objects/3. ReadsClauses.lr.st | 0 .../Examples/Objects/4. ModifiesClauses.lr.st | 0 .../Examples/Objects/WIP/5. Allocation.lr.st | 0 .../Objects/WIP/5. Constructors.lr.st | 0 .../Examples/Objects/WIP/6. TypeTests.lr.st | 0 .../Objects/WIP/7. InstanceCallables.lr.st | 0 .../WIP/8. TerminationInheritance.lr.st | 0 .../Examples/Objects/WIP/9. Closures.lr.st | 0 71 files changed, 73 deletions(-) delete mode 100644 Strata/Languages/Boogie/Examples/Examples.lean delete mode 100644 Strata/Languages/C_Simp/Examples/Examples.lean delete mode 100644 Strata/Languages/Dyn/Examples/Examples.lean rename {Strata => StrataTest}/Languages/Boogie/Examples/AdvancedMaps.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/AdvancedQuantifiers.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/AssertionDefaultNames.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Axioms.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/BitVecParse.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/DDMAxiomsExtraction.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/DDMTransform.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/FailingAssertion.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/FreeRequireEnsure.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Functions.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/GeneratedLabels.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Goto.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Havoc.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Loops.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Map.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Min.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/OldExpressions.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/PrecedenceCheck.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/ProcedureCall.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Quantifiers.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/QuantifiersWithTypeAliases.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/RealBitVector.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/RecursiveProcIte.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/Regex.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/RemoveIrrelevantAxioms.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/SimpleProc.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/String.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/TypeAlias.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/TypeDecl.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/TypeVarImplicitlyQuantified.lean (100%) rename {Strata => StrataTest}/Languages/Boogie/Examples/UnreachableAssert.lean (100%) rename {Strata => StrataTest}/Languages/C_Simp/Examples/Coprime.lean (100%) rename {Strata => StrataTest}/Languages/C_Simp/Examples/LinearSearch.lean (100%) rename {Strata => StrataTest}/Languages/C_Simp/Examples/LoopSimple.lean (100%) rename {Strata => StrataTest}/Languages/C_Simp/Examples/LoopTrivial.lean (100%) rename {Strata => StrataTest}/Languages/C_Simp/Examples/Min.lean (100%) rename {Strata => StrataTest}/Languages/C_Simp/Examples/SimpleTest.lean (100%) rename {Strata => StrataTest}/Languages/C_Simp/Examples/Trivial.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/Arithmetic.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/BasicTypes.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/ControlFlow.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/FunctionCalls.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/HeapOps.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/ListOperations.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/StringOps.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/Trivial.lean (100%) rename {Strata => StrataTest}/Languages/Dyn/Examples/TypeIntrospection.lean (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/10. ConstrainedTypes.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/2. NestedImpureStatements.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/3. ControlFlow.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/4. LoopJumps.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/5. ProcedureCalls.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/6. Preconditions.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/7. Decreases.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/8. Postconditions.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Fundamentals/9. Nondeterministic.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/1. ImmutableFields.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/2. MutableFields.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/3. ReadsClauses.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/4. ModifiesClauses.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/WIP/5. Allocation.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/WIP/5. Constructors.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/WIP/6. TypeTests.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/WIP/7. InstanceCallables.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st (100%) rename {Strata => StrataTest}/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st (100%) diff --git a/Strata.lean b/Strata.lean index dc39e7b693..5c5225eeff 100644 --- a/Strata.lean +++ b/Strata.lean @@ -16,16 +16,8 @@ import Strata.DL.Lambda.Lambda import Strata.DL.Imperative.Imperative /- Boogie -/ -import Strata.Languages.Boogie.Examples.Examples import Strata.Languages.Boogie.StatementSemantics -/- CSimp -/ -import Strata.Languages.C_Simp.Examples.Examples - -/- Dyn -/ -import Strata.Languages.Dyn.Examples.Examples - - /- Code Transforms -/ import Strata.Transform.CallElimCorrect import Strata.Transform.DetToNondetCorrect diff --git a/Strata/Languages/Boogie/Examples/Examples.lean b/Strata/Languages/Boogie/Examples/Examples.lean deleted file mode 100644 index d451b75a51..0000000000 --- a/Strata/Languages/Boogie/Examples/Examples.lean +++ /dev/null @@ -1,37 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ - -import Strata.Languages.Boogie.Examples.AdvancedMaps -import Strata.Languages.Boogie.Examples.AdvancedQuantifiers -import Strata.Languages.Boogie.Examples.AssertionDefaultNames -import Strata.Languages.Boogie.Examples.Axioms -import Strata.Languages.Boogie.Examples.BitVecParse -import Strata.Languages.Boogie.Examples.DDMAxiomsExtraction -import Strata.Languages.Boogie.Examples.DDMTransform -import Strata.Languages.Boogie.Examples.FailingAssertion -import Strata.Languages.Boogie.Examples.FreeRequireEnsure -import Strata.Languages.Boogie.Examples.Functions -import Strata.Languages.Boogie.Examples.Goto -import Strata.Languages.Boogie.Examples.GeneratedLabels -import Strata.Languages.Boogie.Examples.Havoc -import Strata.Languages.Boogie.Examples.Loops -import Strata.Languages.Boogie.Examples.Map -import Strata.Languages.Boogie.Examples.Min -import Strata.Languages.Boogie.Examples.OldExpressions -import Strata.Languages.Boogie.Examples.PrecedenceCheck -import Strata.Languages.Boogie.Examples.ProcedureCall -import Strata.Languages.Boogie.Examples.Quantifiers -import Strata.Languages.Boogie.Examples.QuantifiersWithTypeAliases -import Strata.Languages.Boogie.Examples.RealBitVector -import Strata.Languages.Boogie.Examples.RecursiveProcIte -import Strata.Languages.Boogie.Examples.Regex -import Strata.Languages.Boogie.Examples.RemoveIrrelevantAxioms -import Strata.Languages.Boogie.Examples.SimpleProc -import Strata.Languages.Boogie.Examples.String -import Strata.Languages.Boogie.Examples.TypeAlias -import Strata.Languages.Boogie.Examples.TypeDecl -import Strata.Languages.Boogie.Examples.TypeVarImplicitlyQuantified -import Strata.Languages.Boogie.Examples.UnreachableAssert diff --git a/Strata/Languages/C_Simp/Examples/Examples.lean b/Strata/Languages/C_Simp/Examples/Examples.lean deleted file mode 100644 index 681c49f3c3..0000000000 --- a/Strata/Languages/C_Simp/Examples/Examples.lean +++ /dev/null @@ -1,13 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ - -import Strata.Languages.C_Simp.Examples.Coprime -import Strata.Languages.C_Simp.Examples.LinearSearch -import Strata.Languages.C_Simp.Examples.LoopSimple -import Strata.Languages.C_Simp.Examples.LoopTrivial -import Strata.Languages.C_Simp.Examples.Min -import Strata.Languages.C_Simp.Examples.SimpleTest -import Strata.Languages.C_Simp.Examples.Trivial diff --git a/Strata/Languages/Dyn/Examples/Examples.lean b/Strata/Languages/Dyn/Examples/Examples.lean deleted file mode 100644 index 03a72efb96..0000000000 --- a/Strata/Languages/Dyn/Examples/Examples.lean +++ /dev/null @@ -1,15 +0,0 @@ -/- - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT --/ - -import Strata.Languages.Dyn.Examples.Trivial -import Strata.Languages.Dyn.Examples.BasicTypes -import Strata.Languages.Dyn.Examples.ListOperations -import Strata.Languages.Dyn.Examples.ControlFlow -import Strata.Languages.Dyn.Examples.Arithmetic -import Strata.Languages.Dyn.Examples.StringOps -import Strata.Languages.Dyn.Examples.TypeIntrospection -import Strata.Languages.Dyn.Examples.HeapOps -import Strata.Languages.Dyn.Examples.FunctionCalls diff --git a/Strata/Languages/Boogie/Examples/AdvancedMaps.lean b/StrataTest/Languages/Boogie/Examples/AdvancedMaps.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/AdvancedMaps.lean rename to StrataTest/Languages/Boogie/Examples/AdvancedMaps.lean diff --git a/Strata/Languages/Boogie/Examples/AdvancedQuantifiers.lean b/StrataTest/Languages/Boogie/Examples/AdvancedQuantifiers.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/AdvancedQuantifiers.lean rename to StrataTest/Languages/Boogie/Examples/AdvancedQuantifiers.lean diff --git a/Strata/Languages/Boogie/Examples/AssertionDefaultNames.lean b/StrataTest/Languages/Boogie/Examples/AssertionDefaultNames.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/AssertionDefaultNames.lean rename to StrataTest/Languages/Boogie/Examples/AssertionDefaultNames.lean diff --git a/Strata/Languages/Boogie/Examples/Axioms.lean b/StrataTest/Languages/Boogie/Examples/Axioms.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Axioms.lean rename to StrataTest/Languages/Boogie/Examples/Axioms.lean diff --git a/Strata/Languages/Boogie/Examples/BitVecParse.lean b/StrataTest/Languages/Boogie/Examples/BitVecParse.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/BitVecParse.lean rename to StrataTest/Languages/Boogie/Examples/BitVecParse.lean diff --git a/Strata/Languages/Boogie/Examples/DDMAxiomsExtraction.lean b/StrataTest/Languages/Boogie/Examples/DDMAxiomsExtraction.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/DDMAxiomsExtraction.lean rename to StrataTest/Languages/Boogie/Examples/DDMAxiomsExtraction.lean diff --git a/Strata/Languages/Boogie/Examples/DDMTransform.lean b/StrataTest/Languages/Boogie/Examples/DDMTransform.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/DDMTransform.lean rename to StrataTest/Languages/Boogie/Examples/DDMTransform.lean diff --git a/Strata/Languages/Boogie/Examples/FailingAssertion.lean b/StrataTest/Languages/Boogie/Examples/FailingAssertion.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/FailingAssertion.lean rename to StrataTest/Languages/Boogie/Examples/FailingAssertion.lean diff --git a/Strata/Languages/Boogie/Examples/FreeRequireEnsure.lean b/StrataTest/Languages/Boogie/Examples/FreeRequireEnsure.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/FreeRequireEnsure.lean rename to StrataTest/Languages/Boogie/Examples/FreeRequireEnsure.lean diff --git a/Strata/Languages/Boogie/Examples/Functions.lean b/StrataTest/Languages/Boogie/Examples/Functions.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Functions.lean rename to StrataTest/Languages/Boogie/Examples/Functions.lean diff --git a/Strata/Languages/Boogie/Examples/GeneratedLabels.lean b/StrataTest/Languages/Boogie/Examples/GeneratedLabels.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/GeneratedLabels.lean rename to StrataTest/Languages/Boogie/Examples/GeneratedLabels.lean diff --git a/Strata/Languages/Boogie/Examples/Goto.lean b/StrataTest/Languages/Boogie/Examples/Goto.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Goto.lean rename to StrataTest/Languages/Boogie/Examples/Goto.lean diff --git a/Strata/Languages/Boogie/Examples/Havoc.lean b/StrataTest/Languages/Boogie/Examples/Havoc.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Havoc.lean rename to StrataTest/Languages/Boogie/Examples/Havoc.lean diff --git a/Strata/Languages/Boogie/Examples/Loops.lean b/StrataTest/Languages/Boogie/Examples/Loops.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Loops.lean rename to StrataTest/Languages/Boogie/Examples/Loops.lean diff --git a/Strata/Languages/Boogie/Examples/Map.lean b/StrataTest/Languages/Boogie/Examples/Map.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Map.lean rename to StrataTest/Languages/Boogie/Examples/Map.lean diff --git a/Strata/Languages/Boogie/Examples/Min.lean b/StrataTest/Languages/Boogie/Examples/Min.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/Min.lean rename to StrataTest/Languages/Boogie/Examples/Min.lean diff --git a/Strata/Languages/Boogie/Examples/OldExpressions.lean b/StrataTest/Languages/Boogie/Examples/OldExpressions.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/OldExpressions.lean rename to StrataTest/Languages/Boogie/Examples/OldExpressions.lean diff --git a/Strata/Languages/Boogie/Examples/PrecedenceCheck.lean b/StrataTest/Languages/Boogie/Examples/PrecedenceCheck.lean similarity index 100% rename from Strata/Languages/Boogie/Examples/PrecedenceCheck.lean rename to 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InstanceCallables.lr.st b/StrataTest/Languages/Laurel/Examples/Objects/WIP/7. InstanceCallables.lr.st similarity index 100% rename from Strata/Languages/Laurel/Examples/Objects/WIP/7. InstanceCallables.lr.st rename to StrataTest/Languages/Laurel/Examples/Objects/WIP/7. InstanceCallables.lr.st diff --git a/Strata/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st b/StrataTest/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st similarity index 100% rename from Strata/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st rename to StrataTest/Languages/Laurel/Examples/Objects/WIP/8. TerminationInheritance.lr.st diff --git a/Strata/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st b/StrataTest/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st similarity index 100% rename from Strata/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st rename to StrataTest/Languages/Laurel/Examples/Objects/WIP/9. Closures.lr.st From 5ce8f20740f10b2eeadb203a4b2b21cecba43d28 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Mika=C3=ABl=20Mayer?= Date: Wed, 17 Dec 2025 10:05:07 -0600 Subject: [PATCH 54/68] feat(DDM): Add Bool support to DDM core (#255) ## Changes This adds support for boolean values in the DDM (Dialect Definition Metalanguage): ## Motivation This provides the foundation for dialects to use Lean boolean values in their abstract syntax tree fields. ## Testing The changes compile and all existing tests pass. --------- Co-authored-by: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> --- Examples/dialects/Arith.dialect.st | 8 +-- Examples/dialects/Bool.dialect.st | 20 +++---- Strata/DDM/AST.lean | 2 +- Strata/DDM/BuiltinDialects/Init.lean | 14 +++++ Strata/DDM/Integration/Lean/BoolConv.lean | 34 ++++++++++++ Strata/DDM/Integration/Lean/Gen.lean | 34 ++++++++++-- StrataTest/DDM/Bool.lean | 63 +++++++++++++++++++++++ StrataTest/DDM/Ion.lean | 22 +------- StrataTest/DDM/LoadDialect.lean | 8 +++ StrataTest/DDM/UnwrapSimple.lean | 20 +++++++ 10 files changed, 187 insertions(+), 38 deletions(-) create mode 100644 Strata/DDM/Integration/Lean/BoolConv.lean create mode 100644 StrataTest/DDM/Bool.lean diff --git a/Examples/dialects/Arith.dialect.st b/Examples/dialects/Arith.dialect.st index ba068c22ce..c298427994 100644 --- a/Examples/dialects/Arith.dialect.st +++ b/Examples/dialects/Arith.dialect.st @@ -8,7 +8,7 @@ fn sub_expr (a : Int, b : Int) : Int => @[prec(25), leftassoc] a " - " b; fn mul_expr (a : Int, b : Int) : Int => @[prec(30), leftassoc] a " * " b; fn exp_expr (a : Int, b : Int) : Int => @[prec(32), rightassoc] a " ^ " b; -fn le (a : Int, b : Int) : Bool => @[prec(15)] a " <= " b; -fn lt (a : Int, b : Int) : Bool => @[prec(15)] a " < " b; -fn ge (a : Int, b : Int) : Bool => @[prec(15)] a " >= " b; -fn gt (a : Int, b : Int) : Bool => @[prec(15)] a " > " b; +fn le (a : Int, b : Int) : BoolType => @[prec(15)] a " <= " b; +fn lt (a : Int, b : Int) : BoolType => @[prec(15)] a " < " b; +fn ge (a : Int, b : Int) : BoolType => @[prec(15)] a " >= " b; +fn gt (a : Int, b : Int) : BoolType => @[prec(15)] a " > " b; diff --git a/Examples/dialects/Bool.dialect.st b/Examples/dialects/Bool.dialect.st index 6185e8acac..05842c3199 100644 --- a/Examples/dialects/Bool.dialect.st +++ b/Examples/dialects/Bool.dialect.st @@ -1,18 +1,18 @@ dialect Bool; -// Introduce Boolean type -type Bool; -// Introduce literals as constants. -fn true_lit : Bool => "true"; -fn false_lit : Bool => "false"; +// BoolType for use in function signatures +type BoolType; + +// Function to lift Init.Bool literals to expressions +fn boolLit (b : Bool) : BoolType => b; // Introduce basic Boolean operations. fn not_expr (tp : Type, a : tp) : tp => "-" a; -fn and (a : Bool, b : Bool) : Bool => @[prec(10), leftassoc] a " && " b; -fn or (a : Bool, b : Bool) : Bool => @[prec(8), leftassoc] a " || " b; -fn imp (a : Bool, b : Bool) : Bool => @[prec(8), leftassoc] a " ==> " b; +fn and (a : BoolType, b : BoolType) : BoolType => @[prec(10), leftassoc] a " && " b; +fn or (a : BoolType, b : BoolType) : BoolType => @[prec(8), leftassoc] a " || " b; +fn imp (a : BoolType, b : BoolType) : BoolType => @[prec(8), leftassoc] a " ==> " b; // Introduce equality operations that work for arbitrary types. // The type is inferred. -fn equal (tp : Type, a : tp, b : tp) : Bool => @[prec(15)] a " == " b; -fn not_equal (tp : Type, a : tp, b : tp) : Bool => @[prec(15)] a " != " b; +fn equal (tp : Type, a : tp, b : tp) : BoolType => @[prec(15)] a " == " b; +fn not_equal (tp : Type, a : tp, b : tp) : BoolType => @[prec(15)] a " != " b; diff --git a/Strata/DDM/AST.lean b/Strata/DDM/AST.lean index 112833153a..4d01eef46a 100644 --- a/Strata/DDM/AST.lean +++ b/Strata/DDM/AST.lean @@ -189,7 +189,7 @@ inductive ArgF (α : Type) : Type where | expr (e : ExprF α) | type (e : TypeExprF α) | ident (ann : α) (i : String) -| num (ann : α)(v : Nat) +| num (ann : α) (v : Nat) | decimal (ann : α) (v : Decimal) | strlit (ann : α) (i : String) | bytes (ann : α) (a : ByteArray) diff --git a/Strata/DDM/BuiltinDialects/Init.lean b/Strata/DDM/BuiltinDialects/Init.lean index daff5aa950..5b9fea8ad7 100644 --- a/Strata/DDM/BuiltinDialects/Init.lean +++ b/Strata/DDM/BuiltinDialects/Init.lean @@ -26,6 +26,20 @@ def initDialect : Dialect := BuiltinM.create! "Init" #[] do declareAtomicCat q`Init.Decimal declareAtomicCat q`Init.Str + declareCat q`Init.Bool + declareOp { + name := "boolTrue", + argDecls := .empty, + category := q`Init.Bool, + syntaxDef := .ofList [.str "true"], + } + declareOp { + name := "boolFalse", + argDecls := .empty, + category := q`Init.Bool, + syntaxDef := .ofList [.str "false"], + } + declareCat q`Init.Option #["a"] declareCat q`Init.Seq #["a"] diff --git a/Strata/DDM/Integration/Lean/BoolConv.lean b/Strata/DDM/Integration/Lean/BoolConv.lean new file mode 100644 index 0000000000..8e169b3973 --- /dev/null +++ b/Strata/DDM/Integration/Lean/BoolConv.lean @@ -0,0 +1,34 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Strata.DDM.Integration.Lean.OfAstM + +namespace Strata + +/-- Convert Init.Bool inductive to OperationF -/ +def Bool.toAst {α} [Inhabited α] (v : Ann Bool α) : OperationF α := + if v.val then + ⟨v.ann, q`Init.boolTrue, #[]⟩ + else + ⟨v.ann, q`Init.boolFalse, #[]⟩ + +/-- Convert OperationF to Init.Bool -/ +def Bool.ofAst {α} [Inhabited α] [Repr α] (op : OperationF α) : OfAstM (Ann Bool α) := + match op.name with + | q`Init.boolTrue => + if op.args.size = 0 then + pure ⟨op.ann, true⟩ + else + .error s!"boolTrue expects 0 arguments, got {op.args.size}" + | q`Init.boolFalse => + if op.args.size = 0 then + pure ⟨op.ann, false⟩ + else + .error s!"boolFalse expects 0 arguments, got {op.args.size}" + | _ => + .error s!"Unknown Bool operator: {op.name}" + +end Strata diff --git a/Strata/DDM/Integration/Lean/Gen.lean b/Strata/DDM/Integration/Lean/Gen.lean index 080e8ad48e..ad90d42a54 100644 --- a/Strata/DDM/Integration/Lean/Gen.lean +++ b/Strata/DDM/Integration/Lean/Gen.lean @@ -8,6 +8,7 @@ import Lean.Elab.Command import Strata.DDM.Integration.Lean.Env import Strata.DDM.Integration.Lean.GenTrace import Strata.DDM.Integration.Lean.OfAstM +import Strata.DDM.Integration.Lean.BoolConv import Strata.DDM.Util.Graph.Tarjan open Lean (Command Name Ident Term TSyntax getEnv logError profileitM quote withTraceNode mkIdentFrom) @@ -256,7 +257,8 @@ def declaredCategories : Std.HashMap CategoryName Name := .ofList [ (q`Init.Num, ``Nat), (q`Init.Decimal, ``Decimal), (q`Init.Str, ``String), - (q`Init.ByteArray, ``ByteArray) + (q`Init.ByteArray, ``ByteArray), + (q`Init.Bool, ``Bool) ] def ignoredCategories : Std.HashSet CategoryName := @@ -265,7 +267,8 @@ def ignoredCategories : Std.HashSet CategoryName := namespace CatOpMap def addCat (m : CatOpMap) (cat : CategoryName) : CatOpMap := - if cat ∈ ignoredCategories then + -- Allow Init.Bool even though it's in ignoredCategories + if cat ∈ ignoredCategories && cat ≠ q`Init.Bool then m else m.insert cat #[] @@ -291,7 +294,9 @@ def addDecl (d : DialectName) (decl : Decl) : CatOpM Unit := | .syncat decl => addCatM ⟨d, decl.name⟩ | .op decl => do - if decl.category ∈ ignoredCategories ∨ decl.category ∈ specialCategories then + -- Allow Init.Bool operators even though Bool is in declaredCategories + let isBoolOp := decl.category == q`Init.Bool && (decl.name == "boolTrue" || decl.name == "boolFalse") + if (decl.category ∈ ignoredCategories ∨ decl.category ∈ specialCategories) && !isBoolOp then if d ≠ "Init" then .addError s!"Skipping operation {decl.name} in {d}: {decl.category.fullName} cannot be extended." else @@ -686,6 +691,19 @@ partial def toAstApplyArgWithUnwrap (vn : Name) (cat : SyntaxCat) (unwrap : Bool ``(ArgF.num default $v) else return annToAst ``ArgF.num v + | q`Init.Bool => do + if unwrap then + -- When unwrapped, v is a plain Bool. Create OperationF directly based on the value. + let defaultAnn ← ``(default) + let emptyArray ← ``(#[]) + let trueOp := mkCApp ``OperationF.mk #[defaultAnn, quote q`Init.boolTrue, emptyArray] + let falseOp := mkCApp ``OperationF.mk #[defaultAnn, quote q`Init.boolFalse, emptyArray] + let opExpr ← ``(if $v then $trueOp else $falseOp) + ``(ArgF.op $opExpr) + else + -- When wrapped, v is already Ann Bool α + let boolToAst := mkCApp ``Strata.Bool.toAst #[v] + return mkCApp ``ArgF.op #[boolToAst] | q`Init.Ident => if unwrap then ``(ArgF.ident default $v) @@ -873,6 +891,16 @@ partial def getOfIdentArgWithUnwrap (varName : String) (cat : SyntaxCat) (unwrap | a => OfAstM.throwExpected "byte array" a) $e) else ``(OfAstM.ofBytesM $e) + | q`Init.Bool => do + if unwrap then + -- When unwrapped, extract just the Bool value from Ann Bool α + ``((fun arg => match arg with + | ArgF.op op => Functor.map Ann.val (Strata.Bool.ofAst op) + | a => OfAstM.throwExpected "boolean" a) $e) + else + let (vc, vi) ← genFreshIdentPair varName + let boolOfAst := mkCApp ``Strata.Bool.ofAst #[vi] + ``(OfAstM.ofOperationM $e fun $vc _ => $boolOfAst) | cid@q`Init.Expr => do let (vc, vi) ← genFreshIdentPair <| varName ++ "_inner" let ofAst ← ofAstIdentM cid diff --git a/StrataTest/DDM/Bool.lean b/StrataTest/DDM/Bool.lean new file mode 100644 index 0000000000..c27f40002f --- /dev/null +++ b/StrataTest/DDM/Bool.lean @@ -0,0 +1,63 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Strata.DDM.Integration.Lean + +-- Test that Bool can be used as an inductive type with true/false operators +#dialect +dialect TestBool; + +category BoolExpr; + +op printBool (b : BoolExpr) : Command => "print " b ";"; +op wrappedBool (b: Bool): BoolExpr => b; + +op ifThenElse (cond : Bool, thenVal : BoolExpr, elseVal : BoolExpr) : BoolExpr => + "if " cond " then " thenVal " else " elseVal; + +#end + +-- Test parsing with true +def testTrue := #strata program TestBool; print true; #end + +/-- +info: "program TestBool;\nprint true;" +-/ +#guard_msgs in +#eval toString testTrue.format + +-- Test parsing with false +def testFalse := #strata program TestBool; print false; #end + +/-- +info: "program TestBool;\nprint false;" +-/ +#guard_msgs in +#eval toString testFalse.format + +-- Test parsing with if-then-else using booleans +def testIfThenElse := #strata +program TestBool; +print if true then false else true; +#end + +/-- +info: "program TestBool;\nprint if true then false else (true);" +-/ +#guard_msgs in +#eval toString testIfThenElse.format + +-- Test that we can use booleans in nested expressions +def testNested := #strata +program TestBool; +print if true then if false then true else false else true; +#end + +/-- +info: "program TestBool;\nprint if true then if false then true else (false) else (true);" +-/ +#guard_msgs in +#eval toString testNested.format diff --git a/StrataTest/DDM/Ion.lean b/StrataTest/DDM/Ion.lean index 3873267564..702b42b5c2 100644 --- a/StrataTest/DDM/Ion.lean +++ b/StrataTest/DDM/Ion.lean @@ -21,26 +21,8 @@ def testRoundTrip {α} [FromIon α] [BEq α] [Inhabited α] (toF : α → ByteAr def testDialectRoundTrip (d : Dialect) : Bool := testRoundTrip Dialect.toIon d -#dialect -dialect Bool; -// Introduce Boolean type -type Bool; - -// Introduce literals as constants. -fn true_lit : Bool => "true"; -fn false_lit : Bool => "false"; - -// Introduce basic Boolean operations. -fn not_expr (tp : Type) : tp => tp; -fn and (a : Bool, b : Bool) : Bool => @[prec(10), leftassoc] a " && " b; -fn or (a : Bool, b : Bool) : Bool => @[prec(8), leftassoc] a " || " b; -fn imp (a : Bool, b : Bool) : Bool => @[prec(8), leftassoc] a " ==> " b; - -// Introduce equality operations that work for arbitrary types. -// The type is inferred. -fn equal (tp : Type, a : tp, b : tp) : Bool => @[prec(15)] a " == " b; -fn not_equal (tp : Type, a : tp, b : tp) : Bool => @[prec(15)] a " != " b; -#end +-- Load the actual Bool dialect from Examples +#load_dialect "../../Examples/dialects/Bool.dialect.st" #guard testDialectRoundTrip Bool diff --git a/StrataTest/DDM/LoadDialect.lean b/StrataTest/DDM/LoadDialect.lean index ba430a7bea..94732cd766 100644 --- a/StrataTest/DDM/LoadDialect.lean +++ b/StrataTest/DDM/LoadDialect.lean @@ -31,6 +31,14 @@ error: 1 error(s) in ../../Examples/dialects/Arith.dialect.st: namespace Bool #strata_gen Bool + +-- Test that boolLit has the expected signature +/-- +info: Strata.Test.Bool.Expr.boolLit {α : Type} : α → (b : Ann _root_.Bool α) → Expr α +-/ +#guard_msgs in +#check Expr.boolLit + end Bool #load_dialect "../../Examples/dialects/Arith.dialect.st" diff --git a/StrataTest/DDM/UnwrapSimple.lean b/StrataTest/DDM/UnwrapSimple.lean index f756fafbd0..8f6ff0bdbc 100644 --- a/StrataTest/DDM/UnwrapSimple.lean +++ b/StrataTest/DDM/UnwrapSimple.lean @@ -20,6 +20,8 @@ op name (@[unwrap] n : Ident) : Expression => n; op text (@[unwrap] s : Str) : Expression => s; op decimal_val (@[unwrap] d : Decimal) : Expression => d; op bytes_val (@[unwrap] b : ByteArray) : Expression => b; +op bool_unwrapped (@[unwrap] b : Bool) : Expression => b; +op bool_wrapped (b : Bool) : Expression => b; #end @@ -77,6 +79,18 @@ info: TestUnwrap.Expression.bytes_val {α : Type} : α → (b : ByteArray) → T #guard_msgs in #check TestUnwrap.Expression.bytes_val +/-- +info: TestUnwrap.Expression.bool_unwrapped {α : Type} : α → (b : Bool) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.bool_unwrapped + +/-- +info: TestUnwrap.Expression.bool_wrapped {α : Type} : α → (b : Ann Bool α) → TestUnwrap.Expression α +-/ +#guard_msgs in +#check TestUnwrap.Expression.bool_wrapped + -- Verify that index uses unwrapped Nat (not Ann Nat α) example : TestUnwrap.Expression Unit := .index () 42 @@ -94,3 +108,9 @@ example : TestUnwrap.Expression Unit := .decimal_val () { mantissa := 123, expon -- Verify that bytes_val uses unwrapped ByteArray example : TestUnwrap.Expression Unit := .bytes_val () (ByteArray.mk #[0x48, 0x69]) + +-- Verify that bool_unwrapped uses unwrapped Bool +example : TestUnwrap.Expression Unit := .bool_unwrapped () true + +-- Verify that bool_wrapped uses wrapped Ann Bool +example : TestUnwrap.Expression Unit := .bool_wrapped () ⟨(), false⟩ From b3c66a37c309412d03707293aef61a354689b374 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Thu, 18 Dec 2025 14:37:04 +0100 Subject: [PATCH 55/68] Fix --- .../Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean index 8a4fb0118c..937f396846 100644 --- a/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean +++ b/Strata/Languages/Laurel/Grammar/ConcreteToAbstractTreeTranslator.lean @@ -41,7 +41,7 @@ def SourceRange.toMetaData (ictx : InputContext) (sr : SourceRange) : Imperative #[fileRangeElt] def getArgMetaData (arg : Arg) : TransM (Imperative.MetaData Boogie.Expression) := - return arg.ann.toMetaData (← get).inputCtx + return SourceRange.toMetaData (← get).inputCtx arg.ann def checkOp (op : Strata.Operation) (name : QualifiedIdent) (argc : Nat) : TransM Unit := do From d5d3a57ddfb3899148ffb92f5ef2236e98948be7 Mon Sep 17 00:00:00 2001 From: Joe Hendrix Date: Thu, 18 Dec 2025 08:36:18 -0800 Subject: [PATCH 56/68] Bump to v4.26.0 (#281) By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/DDM/Ion.lean | 4 +- Strata/DDM/Parser.lean | 66 +++++++-------- Strata/DDM/Util/ByteArray.lean | 13 ++- Strata/DDM/Util/Ion.lean | 2 +- Strata/DDM/Util/Lean.lean | 2 +- Strata/DDM/Util/String.lean | 4 +- Strata/DL/SMT/CexParser.lean | 8 +- Strata/DL/Util/StringGen.lean | 92 +++++++++------------ Strata/Languages/Python/Regex/ReParser.lean | 9 ++ lean-toolchain | 2 +- 10 files changed, 95 insertions(+), 107 deletions(-) diff --git a/Strata/DDM/Ion.lean b/Strata/DDM/Ion.lean index 45d9ea44e2..dbee5acac8 100644 --- a/Strata/DDM/Ion.lean +++ b/Strata/DDM/Ion.lean @@ -314,10 +314,10 @@ protected def toIon (d : QualifiedIdent) : Ion.InternM (Ion SymbolId) := do def fromIonStringSymbol (fullname : String) : FromIonM QualifiedIdent := do let pos := fullname.find (·='.') - if pos < fullname.endPos then + if pos < fullname.rawEndPos then let dialect := String.Pos.Raw.extract fullname 0 pos -- . is one byte - let name := String.Pos.Raw.extract fullname (pos + '.') fullname.endPos + let name := String.Pos.Raw.extract fullname (pos + '.') fullname.rawEndPos return { dialect, name } else throw s!"Invalid symbol {fullname}" diff --git a/Strata/DDM/Parser.lean b/Strata/DDM/Parser.lean index 4f10e46362..57e530a5cc 100644 --- a/Strata/DDM/Parser.lean +++ b/Strata/DDM/Parser.lean @@ -131,7 +131,7 @@ private def isToken (idStartPos idStopPos : String.Pos.Raw) (tk : Option Token) | some tk => -- if a token is both a symbol and a valid identifier (i.e. a keyword), -- we want it to be recognized as a symbol - tk.endPos.byteIdx ≥ idStopPos.byteIdx - idStartPos.byteIdx + tk.rawEndPos.byteIdx ≥ idStopPos.byteIdx - idStartPos.byteIdx /-- Create a trailing node @@ -241,30 +241,6 @@ partial def whitespace : ParserFn := fun c s => s else s -def mkIdResult (startPos : String.Pos.Raw) (val : String) : ParserFn := fun c s => - let stopPos := s.pos - let rawVal := c.substring startPos stopPos - let s := whitespace c s - let trailingStopPos := s.pos - let leading := c.mkEmptySubstringAt startPos - let trailing := c.substring (startPos := stopPos) (stopPos := trailingStopPos) - let info := SourceInfo.original leading startPos trailing stopPos - let atom := mkIdent info rawVal (.str .anonymous val) - s.pushSyntax atom - -/-- Push `(Syntax.node tk )` onto syntax stack if parse was successful. -/ -def mkNodeToken (n : SyntaxNodeKind) (startPos : String.Pos.Raw) : ParserFn := fun c s => Id.run do - if s.hasError then - return s - let stopPos := s.pos - let leading := c.mkEmptySubstringAt startPos - let val := c.extract startPos stopPos - let s := whitespace c s - let wsStopPos := s.pos - let trailing := c.substring (startPos := stopPos) (stopPos := wsStopPos) - let info := SourceInfo.original leading startPos trailing stopPos - s.pushSyntax (Syntax.mkLit n val info) - def mkTokenAndFixPos (startPos : String.Pos.Raw) (tk : Option Token) : ParserFn := fun c s => match tk with | none => s.mkErrorAt "token" startPos @@ -281,6 +257,34 @@ def mkTokenAndFixPos (startPos : String.Pos.Raw) (tk : Option Token) : ParserFn let atom := Parser.mkAtom (SourceInfo.original leading startPos trailing stopPos) tk s.pushSyntax atom +def mkIdResult (startPos : String.Pos.Raw) (tk : Option Token) (startPart stopPart : String.Pos.Raw) : ParserFn := fun c s => + if isToken startPos s.pos tk then + mkTokenAndFixPos startPos tk c s + else + let val := c.extract startPart stopPart + let stopPos := s.pos + let rawVal := c.substring startPos stopPos + let s := whitespace c s + let trailingStopPos := s.pos + let leading := c.mkEmptySubstringAt startPos + let trailing := c.substring (startPos := stopPos) (stopPos := trailingStopPos) + let info := SourceInfo.original leading startPos trailing stopPos + let atom := mkIdent info rawVal (.str .anonymous val) + s.pushSyntax atom + +/-- Push `(Syntax.node tk )` onto syntax stack if parse was successful. -/ +def mkNodeToken (n : SyntaxNodeKind) (startPos : String.Pos.Raw) : ParserFn := fun c s => Id.run do + if s.hasError then + return s + let stopPos := s.pos + let leading := c.mkEmptySubstringAt startPos + let val := c.extract startPos stopPos + let s := whitespace c s + let wsStopPos := s.pos + let trailing := c.substring (startPos := stopPos) (stopPos := wsStopPos) + let info := SourceInfo.original leading startPos trailing stopPos + s.pushSyntax (Syntax.mkLit n val info) + def charLitFnAux (startPos : String.Pos.Raw) : ParserFn := fun c s => let i := s.pos if h : c.atEnd i then s.mkEOIError @@ -310,20 +314,12 @@ def identFnAux (startPos : String.Pos.Raw) (tk : Option Token) : ParserFn := fun else let stopPart := s.pos let s := s.next' c s.pos h - if isToken startPos s.pos tk then - mkTokenAndFixPos startPos tk c s - else - let val := c.extract startPart stopPart - mkIdResult startPos val c s + mkIdResult startPos tk startPart stopPart c s else if isIdFirst curr then let startPart := i let s := takeWhileFn isIdRest c (s.next c i) let stopPart := s.pos - if isToken startPos s.pos tk then - mkTokenAndFixPos startPos tk c s - else - let val := c.extract startPart stopPart - mkIdResult startPos val c s + mkIdResult startPos tk startPart stopPart c s else mkTokenAndFixPos startPos tk c s diff --git a/Strata/DDM/Util/ByteArray.lean b/Strata/DDM/Util/ByteArray.lean index ce0bd01778..e37cf177c8 100644 --- a/Strata/DDM/Util/ByteArray.lean +++ b/Strata/DDM/Util/ByteArray.lean @@ -30,9 +30,8 @@ def foldr {β} (f : UInt8 → β → β) (init : β) (as : ByteArray) (start := aux (min start as.size) (Nat.min_le_right _ _) init def byteToHex (b : UInt8) : String := - let cl := Nat.toDigits 16 b.toNat - let cl := if cl.length < 2 then '0' :: cl else cl - cl.asString + let cl : String := .ofList (Nat.toDigits 16 b.toNat) + if cl.length < 2 then "0" ++ cl else cl def asHex (a : ByteArray) : String := a.foldl (init := "") fun s b => s ++ byteToHex b @@ -95,7 +94,7 @@ def escapeChars : Std.HashMap Char UInt8 := .ofList <| ByteArray.escapedBytes.toList |>.map fun (i, c) => (c, i) partial def unescapeBytesRawAux (s : String) (i0 : String.Pos.Raw) (a : ByteArray) : Except (String.Pos.Raw × String.Pos.Raw × String) (ByteArray × String.Pos.Raw) := - if i0 = s.endPos then + if i0 = s.rawEndPos then .error (i0, i0, "unexpected end of input, expected closing quote") else let ch := i0.get s @@ -104,19 +103,19 @@ partial def unescapeBytesRawAux (s : String) (i0 : String.Pos.Raw) (a : ByteArra .ok (a, i) else if ch == '\\' then -- Escape sequence - if i = s.endPos then + if i = s.rawEndPos then .error (i0, i, "unexpected end of input after backslash") else let escCh := i.get s let i := i.next s if escCh = 'x' then -- Hex escape: \xHH - if i = s.endPos then + if i = s.rawEndPos then .error (i0, i, "incomplete hex escape sequence") else let c1 := i.get s let j := i.next s - if j = s.endPos then + if j = s.rawEndPos then .error (i0, j, "incomplete hex escape sequence") else let c2 := j.get s diff --git a/Strata/DDM/Util/Ion.lean b/Strata/DDM/Util/Ion.lean index d509343f0b..d206137e3c 100644 --- a/Strata/DDM/Util/Ion.lean +++ b/Strata/DDM/Util/Ion.lean @@ -91,7 +91,7 @@ syntax (name := declareSystemSymbolIds) "#declare_system_symbol_ids" : command - def declareSystemSymbolIdsImpl : CommandElab := fun _stx => do for sym in SymbolTable.ionSharedSymbolTableEntries do -- To simplify name, strip out non-alphanumeric characters. - let simplifiedName : String := .mk <| sym.data.filter (·.isAlphanum) + let simplifiedName : String := .ofList <| sym.toList.filter (·.isAlphanum) let leanName := Lean.mkLocalDeclId simplifiedName let cmd : TSyntax `command ← `(command| def $(leanName) : SymbolId := systemSymbolId! $(Lean.Syntax.mkStrLit sym) diff --git a/Strata/DDM/Util/Lean.lean b/Strata/DDM/Util/Lean.lean index 0ed5b6f66d..4faf5cd0da 100644 --- a/Strata/DDM/Util/Lean.lean +++ b/Strata/DDM/Util/Lean.lean @@ -42,7 +42,7 @@ partial def mkErrorMessage (c : InputContext) (pos : String.Pos.Raw) (stk : Synt data := toString e } where -- Error recovery might lead to there being some "junk" on the stack - lastTrailing (s : SyntaxStack) : Option Substring := + lastTrailing (s : SyntaxStack) : Option Substring.Raw := s.toSubarray.findSomeRevM? (m := Id) fun stx => if let .original (trailing := trailing) .. := stx.getTailInfo then pure (some trailing) else none diff --git a/Strata/DDM/Util/String.lean b/Strata/DDM/Util/String.lean index ede0a91654..0d904a0471 100644 --- a/Strata/DDM/Util/String.lean +++ b/Strata/DDM/Util/String.lean @@ -74,9 +74,9 @@ def Pos.Raw.indexOfAux (s sub : String) (subp : sub.utf8ByteSize > 0) (i : Pos.R (i.next s).indexOfAux s sub subp else none -termination_by s.endPos.byteIdx - i.byteIdx +termination_by s.rawEndPos.byteIdx - i.byteIdx decreasing_by - simp only [Pos.Raw.next, Pos.Raw.add_char_eq, endPos] + simp only [Pos.Raw.next, Pos.Raw.add_char_eq, rawEndPos] have p : (i.get s).utf8Size > 0 := Char.utf8Size_pos _ grind diff --git a/Strata/DL/SMT/CexParser.lean b/Strata/DL/SMT/CexParser.lean index 871edb6669..23c1fd08fd 100644 --- a/Strata/DL/SMT/CexParser.lean +++ b/Strata/DL/SMT/CexParser.lean @@ -51,7 +51,7 @@ abbrev Parser := Std.Internal.Parsec.String.Parser def varToken : Parser String := do let chars ← many1 (satisfy (fun c => !c.isWhitespace && c ≠ '(' && c ≠ ')')) - return String.mk chars.toList + return String.ofList chars.toList def valToken : Parser String := do (attempt (do @@ -59,7 +59,7 @@ def valToken : Parser String := do let _open_paren ← pchar '(' let content ← many (satisfy (fun c => c ≠ ')')) let _close_paren ← pchar ')' - return s!"({String.mk content.toList})")) <|> + return s!"({String.ofList content.toList})")) <|> -- Handle regular token. varToken @@ -91,9 +91,9 @@ def parseCEx1 : Parser CEx := do return { pairs := [] })) def parseCEx (cex : String) : Except Format CEx := - match parseCEx1 (String.mkIterator cex) with + match parseCEx1 ⟨cex, cex.startValidPos⟩ with | Std.Internal.Parsec.ParseResult.success _ result => Except.ok result - | Std.Internal.Parsec.ParseResult.error pos msg => Except.error s!"Parse error at {pos}: {msg}" + | Std.Internal.Parsec.ParseResult.error ⟨_, pos⟩ msg => Except.error s!"Parse error at {pos.offset}: {msg}" /-- info: -/ #guard_msgs in diff --git a/Strata/DL/Util/StringGen.lean b/Strata/DL/Util/StringGen.lean index feede41c7c..5aa0b207b9 100644 --- a/Strata/DL/Util/StringGen.lean +++ b/Strata/DL/Util/StringGen.lean @@ -17,7 +17,9 @@ import Strata.DL.Util.Counter /-- `s.IsSuffix t` checks if the string `s` is a suffix of the string `t`. from mathlib https://github.com/leanprover-community/mathlib4/blob/f3c56c29d5c787d62f66c207e097a159ff66318a/Mathlib/Data/String/Defs.lean#L37-L39 -/ -abbrev String.IsSuffix (s1 s2 : String) : Prop := List.IsSuffix s1.data s2.data +abbrev String.IsSuffix (s1 s2 : String) : Prop := List.IsSuffix s1.toList s2.toList + +local infixl:50 " <:+ " => String.IsSuffix /-- Wrapper around CounterState to allow a prefix -/ structure StringGenState where @@ -54,11 +56,11 @@ theorem String.append_eq_suffix (as bs bs' : String): by_cases bs = bs' <;> simp_all next Hne => have Heq' := String.ext_iff.mp Heq - have Hne' : ¬ bs.data = bs'.data := by + have Hne' : ¬ bs.toList = bs'.toList := by intros Heq have HH := String.ext_iff.mpr Heq contradiction - simp [String.data_append] at * + simp at * contradiction theorem String.append_eq_prefix (as as' bs : String): @@ -109,7 +111,7 @@ theorem Nat_toDigitsCore_not_contain_underscore {n m l} : '_' ∉ l → '_' ∉ simp [Nat_digitchar_neq_underscore, Hnin] apply ind <;> simp [*, Nat_digitchar_neq_underscore] -theorem Nat_toString_not_contain_underscore {x: Nat} : '_' ∉ (toString x).data := by +theorem Nat_toString_not_contain_underscore {x: Nat} : '_' ∉ (toString x).toList := by simp [toString, Nat.repr, Nat.toDigits] exact Nat_toDigitsCore_not_contain_underscore (l := []) (by simp) @@ -228,61 +230,43 @@ theorem Nat_eq_of_toDigitsCore_eq : x > n → y > m theorem Nat_eq_of_toString_eq {x y: Nat}: (toString x) = (toString y) → x = y := by intro H simp only [toString, Nat.repr] at H - apply Nat_eq_of_toDigitsCore_eq (by simp) (by simp) (List.asString_injective H) + apply Nat_eq_of_toDigitsCore_eq (by simp) (by simp) (String.ofList_injective H) + +private theorem under_toList : "_".toList = ['_'] := rfl theorem Nat_eq_of_StringGen_suffix {x y: Nat}: ("_" ++ toString x).IsSuffix (s ++ "_" ++ toString y) → x = y := by intro Hsuf - simp only [String.IsSuffix, String.data_append] at Hsuf - change ['_'] ++ (toString x).data <:+ s.data ++ ['_'] ++ (toString y).data at Hsuf apply Nat_eq_of_toString_eq - by_cases Hc: (toString x).length < (toString y).length - have Hsuf': (toString y).data <:+ s.data ++ ['_'] ++ (toString y).data := by - apply List.suffix_append_of_suffix - simp - have h : ['_'] ++ (toString x).data <:+ (toString y).data := by - simp only [List.append_assoc] at Hsuf - simp only [List.append_assoc] at Hsuf' - apply List.suffix_of_suffix_length_le Hsuf Hsuf' - simp - omega - obtain ⟨t, h⟩ := h - have : '_' ∈ (toString y).data := by simp [← h] - have := @Nat_toString_not_contain_underscore y - contradiction - --case 2 - by_cases Hc: (toString x).length > (toString y).length - have Hsuf : (toString x).data <:+ s.data ++ ['_'] ++ (toString y).data := by - simp [toString, List.IsSuffix] at * - obtain ⟨t, H⟩ := Hsuf - exists t ++ ['_'] - simp [← H] - have Hsuf': ['_'] ++ (toString y).data <:+ s.data ++ ['_'] ++ (toString y).data := by - simp only [List.append_assoc] - apply List.suffix_append_of_suffix - simp - have H: ['_'] ++ (toString y).data <:+ (toString x).data := by - apply List.suffix_of_suffix_length_le Hsuf' Hsuf - simp - omega - have : ¬ (['_'] ++ (toString y).data) <:+ (toString x).data := by - intro h; - obtain ⟨t, h⟩ := h - have : '_' ∈ (toString x).data := by simp [← h] + if x_lt : (toString x).length < (toString y).length then + simp only [String.IsSuffix, String.toList_append, under_toList] at Hsuf + have Hsuf': (toString y).toList <:+ s.toList ++ ['_'] ++ (toString y).toList := + List.suffix_append_of_suffix (List.suffix_refl _) + have ⟨t, h⟩ : ['_'] ++ (toString x).toList <:+ (toString y).toList := + List.suffix_of_suffix_length_le Hsuf Hsuf' (by simp; exact x_lt) + have : '_' ∈ (toString y).toList := by simp [← h] + have := @Nat_toString_not_contain_underscore y + contradiction + else if x_gt : (toString x).length > (toString y).length then + have Hsuf : (toString x).toList <:+ s.toList ++ ['_'] ++ (toString y).toList := by + obtain ⟨t, H⟩ := Hsuf + exists t ++ ['_'] + simp only [String.toList_append, under_toList, List.append_assoc] at H + simp only [List.append_assoc] + exact H + have Hsuf': ['_'] ++ (toString y).toList <:+ s.toList ++ ['_'] ++ (toString y).toList := by + simp only [List.append_assoc] + exact List.suffix_append_of_suffix (List.suffix_refl _) + have ⟨t, h⟩ : ['_'] ++ (toString y).toList <:+ (toString x).toList := + List.suffix_of_suffix_length_le Hsuf' Hsuf (by simp; omega) + have : '_' ∈ (toString x).toList := by simp [← h] have := @Nat_toString_not_contain_underscore x contradiction - contradiction - -- case 3 - have Hc: (toString x).data.length = (toString y).data.length := by simp; omega - have Hsuf : (toString x).data <:+ s.data ++ ['_'] ++ (toString y).data := by - obtain ⟨t, H⟩ := Hsuf - exists t ++ ['_'] - simp only [← List.append_assoc] at * - exact H - have Hsuf': (toString y).data <:+ s.data ++ ['_'] ++ (toString y).data := by - grind - simp [List.suffix_iff_eq_drop, Hc] at * - rw [← Hsuf] at Hsuf' - simp [String.ext_iff, Hsuf'] + else + have eq_len: (toString x).length = (toString y).length := by omega + obtain ⟨cs, H⟩ := Hsuf + simp only [String.toList_append, ← List.append_assoc] at H + have this := List.append_inj_right' H eq_len + exact String.toList_inj.mp this /-- The uniqueness of the generated string follows from the following: given that the numbers at the end of all strings are unique, then the strings themselves must be unique. @@ -307,6 +291,6 @@ theorem StringGenState.WFMono : intro c s H cases H · rename_i H - simp only [H.right, H.left, String.IsSuffix, String.append_assoc, String.data_append] + simp only [H.right, H.left, String.IsSuffix, String.toList_append, List.append_assoc] apply List.suffix_append · apply Hwf.right.right.right <;> assumption diff --git a/Strata/Languages/Python/Regex/ReParser.lean b/Strata/Languages/Python/Regex/ReParser.lean index 4bf33814a5..5832c82888 100644 --- a/Strata/Languages/Python/Regex/ReParser.lean +++ b/Strata/Languages/Python/Regex/ReParser.lean @@ -158,6 +158,12 @@ def parseBounds (s : String) (pos : String.Pos.Raw) : Except ParseError (Nat × ------------------------------------------------------------------------------- +-- N.B. This disables a feature introduced in Lean PR #10823 that +-- causes a timeout in the mutual block below. +-- +-- Once we upgrade past 4.26.0, we should be able to remove this option. +set_option backwards.match.sparseCases false + mutual /-- Parse atom: single element (char, class, anchor, group) with optional @@ -295,8 +301,11 @@ partial def parseGroup (s : String) (pos : String.Pos.Raw) (endChar : Option Cha | [] => pure (.empty, i) | [single] => pure (single, i) | head :: tail => pure (tail.foldl RegexAST.union head, i) + end +set_option backwards.match.sparseCases true + /-- Parse entire regex string (implicit top-level group). -/ def parseTop (s : String) : Except ParseError RegexAST := parseGroup s 0 none |>.map (fun (r, _) => r) diff --git a/lean-toolchain b/lean-toolchain index 8c7c6ec0ed..3f063c00a2 100644 --- a/lean-toolchain +++ b/lean-toolchain @@ -1 +1 @@ -v4.25.2 \ No newline at end of file +v4.26.0 \ No newline at end of file From 1e1be4c0609727ab2891e8c79b4072a9baf6114c Mon Sep 17 00:00:00 2001 From: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Date: Thu, 18 Dec 2025 12:10:41 -0600 Subject: [PATCH 57/68] Switch Z3 timeout from soft to hard (#284) Switch Z3 timeout from soft to hard By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/Languages/Boogie/Verifier.lean | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Strata/Languages/Boogie/Verifier.lean b/Strata/Languages/Boogie/Verifier.lean index 55bbd31f1e..722b901c94 100644 --- a/Strata/Languages/Boogie/Verifier.lean +++ b/Strata/Languages/Boogie/Verifier.lean @@ -199,7 +199,7 @@ def getSolverFlags (options : Options) (solver : String) : Array String := let setTimeout := match solver with | "cvc5" => #[s!"--tlimit={options.solverTimeout*1000}"] - | "z3" => #[s!"-t:{options.solverTimeout*1000}"] + | "z3" => #[s!"-T:{options.solverTimeout*1000}"] | _ => #[] produceModels ++ setTimeout From 197dddbc6c971573338d6365e738cf4ddcfd7943 Mon Sep 17 00:00:00 2001 From: Juneyoung Lee <136006969+aqjune-aws@users.noreply.github.com> Date: Thu, 18 Dec 2025 13:33:00 -0600 Subject: [PATCH 58/68] Add more concrete evaluators for bit-vector operations in Boogie (#275) This adds more concrete evaluators for bit-vector operations. This will help the Plausible based test generators including the prototypes which will follow after https://github.com/strata-org/Strata/pull/272 do much more interesting tests. This also changes the type of concreteEval to return Option LExpr, to allow deciding whether concrete eval has been successfully done without relying on Beq/DecidableEq. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Shilpi Goel Co-authored-by: Aaron Tomb --- Strata/DL/Lambda/Factory.lean | 4 +- Strata/DL/Lambda/IntBoolFactory.lean | 42 +++++----- Strata/DL/Lambda/LExprEval.lean | 6 +- Strata/DL/Lambda/Semantics.lean | 5 +- Strata/DL/Lambda/TypeFactory.lean | 17 ++-- Strata/Languages/Boogie/Factory.lean | 78 ++++++++++++++++++- Strata/Languages/Python/PyFactory.lean | 14 ++-- StrataTest/DL/Lambda/LExprEvalTests.lean | 30 +++---- StrataTest/Languages/Boogie/ExprEvalTest.lean | 3 +- 9 files changed, 145 insertions(+), 54 deletions(-) diff --git a/Strata/DL/Lambda/Factory.lean b/Strata/DL/Lambda/Factory.lean index 00e0912771..68e8341c86 100644 --- a/Strata/DL/Lambda/Factory.lean +++ b/Strata/DL/Lambda/Factory.lean @@ -94,7 +94,9 @@ structure LFunc (T : LExprParams) where -- (TODO): Add support for a fixed set of attributes (e.g., whether to inline -- a function, etc.). attr : Array String := #[] - concreteEval : Option ((LExpr T.mono) → List (LExpr T.mono) → (LExpr T.mono)) := .none + -- The T.Metadata argument is the metadata that will be attached to the + -- resulting expression of concreteEval if evaluation was successful. + concreteEval : Option (T.Metadata → List (LExpr T.mono) → Option (LExpr T.mono)) := .none axioms : List (LExpr T.mono) := [] -- For axiomatic definitions instance [Inhabited T.Metadata] [Inhabited T.IDMeta] : Inhabited (LFunc T) where diff --git a/Strata/DL/Lambda/IntBoolFactory.lean b/Strata/DL/Lambda/IntBoolFactory.lean index 558f2c775b..82eaad6749 100644 --- a/Strata/DL/Lambda/IntBoolFactory.lean +++ b/Strata/DL/Lambda/IntBoolFactory.lean @@ -23,7 +23,7 @@ variable {T : LExprParams} [Coe String T.Identifier] def unaryOp (n : T.Identifier) (ty : LMonoTy) - (ceval : Option (LExpr T.mono → List (LExpr T.mono) → LExpr T.mono)) : LFunc T := + (ceval : Option (T.Metadata → List (LExpr T.mono) → Option (LExpr T.mono))) : LFunc T := { name := n, inputs := [("x", ty)], output := ty, @@ -31,7 +31,7 @@ def unaryOp (n : T.Identifier) def binaryOp (n : T.Identifier) (ty : LMonoTy) - (ceval : Option (LExpr T.mono → List (LExpr T.mono) → LExpr T.mono)) : LFunc T := + (ceval : Option (T.Metadata → List (LExpr T.mono) → Option (LExpr T.mono))) : LFunc T := { name := n, inputs := [("x", ty), ("y", ty)], output := ty, @@ -39,7 +39,7 @@ def binaryOp (n : T.Identifier) def binaryPredicate (n : T.Identifier) (ty : LMonoTy) - (ceval : Option (LExpr T.mono → List (LExpr T.mono) → LExpr T.mono)) : LFunc T := + (ceval : Option (T.Metadata → List (LExpr T.mono) → Option (LExpr T.mono))) : LFunc T := { name := n, inputs := [("x", ty), ("y", ty)], output := .bool, @@ -48,53 +48,53 @@ def binaryPredicate (n : T.Identifier) def unOpCeval (InTy OutTy : Type) [ToString OutTy] (mkConst : T.Metadata → OutTy → LExpr T.mono) (cevalInTy : (LExpr T.mono) → Option InTy) (op : InTy → OutTy) : - (LExpr T.mono) → List (LExpr T.mono) → (LExpr T.mono) := - (fun e args => match args with + T.Metadata → List (LExpr T.mono) → Option (LExpr T.mono) := + (fun m args => match args with | [e1] => let e1i := cevalInTy e1 match e1i with - | some x => mkConst e1.metadata (op x) - | _ => e - | _ => e) + | some x => .some (mkConst m (op x)) + | _ => .none + | _ => .none) def binOpCeval (InTy OutTy : Type) [ToString OutTy] (mkConst : T.Metadata → OutTy → LExpr T.mono) (cevalInTy : LExpr T.mono → Option InTy) (op : InTy → InTy → OutTy) : - (LExpr T.mono) → List (LExpr T.mono) → (LExpr T.mono) := - (fun e args => match args with + T.Metadata → List (LExpr T.mono) → Option (LExpr T.mono) := + (fun m args => match args with | [e1, e2] => let e1i := cevalInTy e1 let e2i := cevalInTy e2 match e1i, e2i with - | some x, some y => mkConst e1.metadata (op x y) - | _, _ => e - | _ => e) + | some x, some y => mkConst m (op x y) + | _, _ => .none + | _ => .none) -- We hand-code a denotation for `Int.Div` to leave the expression -- unchanged if we have `0` for the denominator. -def cevalIntDiv (e : LExpr T.mono) (args : List (LExpr T.mono)) : LExpr T.mono := +def cevalIntDiv (m:T.Metadata) (args : List (LExpr T.mono)) : Option (LExpr T.mono) := match args with | [e1, e2] => let e1i := LExpr.denoteInt e1 let e2i := LExpr.denoteInt e2 match e1i, e2i with | some x, some y => - if y == 0 then e else .intConst e.metadata (x / y) - | _, _ => e - | _ => e + if y == 0 then .none else .some (.intConst m (x / y)) + | _, _ => .none + | _ => .none -- We hand-code a denotation for `Int.Mod` to leave the expression -- unchanged if we have `0` for the denominator. -def cevalIntMod (e : LExpr T.mono) (args : List (LExpr T.mono)) : LExpr T.mono := +def cevalIntMod (m:T.Metadata) (args : List (LExpr T.mono)) : Option (LExpr T.mono) := match args with | [e1, e2] => let e1i := LExpr.denoteInt e1 let e2i := LExpr.denoteInt e2 match e1i, e2i with | some x, some y => - if y == 0 then e else .intConst e.metadata (x % y) - | _, _ => e - | _ => e + if y == 0 then .none else .some (.intConst m (x % y)) + | _, _ => .none + | _ => .none /- Integer Arithmetic Operations -/ diff --git a/Strata/DL/Lambda/LExprEval.lean b/Strata/DL/Lambda/LExprEval.lean index 59098ca8d2..864ed13fd1 100644 --- a/Strata/DL/Lambda/LExprEval.lean +++ b/Strata/DL/Lambda/LExprEval.lean @@ -154,7 +154,11 @@ def eval (n : Nat) (σ : LState TBase) (e : (LExpr TBase.mono)) -- We can, provided a denotation function, evaluate this function -- call. match lfunc.concreteEval with - | none => new_e | some ceval => eval n' σ (ceval new_e args) + | none => new_e + | some ceval => + match ceval new_e.metadata args with + | .some e' => eval n' σ e' + | .none => new_e else -- At least one argument in the function call is symbolic. new_e diff --git a/Strata/DL/Lambda/Semantics.lean b/Strata/DL/Lambda/Semantics.lean index a70ba14e06..41d5b09072 100644 --- a/Strata/DL/Lambda/Semantics.lean +++ b/Strata/DL/Lambda/Semantics.lean @@ -119,11 +119,12 @@ inductive Step (F:@Factory Tbase) (rf:Env Tbase) -- If LFunc has a concrete evaluator, this can be used to 'jump' to the final -- result of the function. | eval_fn: - ∀ (e callee:LExpr Tbase.mono) args fn denotefn, + ∀ (e callee e':LExpr Tbase.mono) args fn denotefn, F.callOfLFunc e = .some (callee,args,fn) → args.all (LExpr.isCanonicalValue F) → fn.concreteEval = .some denotefn → - Step F rf e (denotefn (LExpr.mkApp m callee args) args) + .some e' = denotefn m args → + Step F rf e e' omit [DecidableEq Tbase.Metadata] [DecidableEq Tbase.Identifier] in diff --git a/Strata/DL/Lambda/TypeFactory.lean b/Strata/DL/Lambda/TypeFactory.lean index 374e4fc82f..b3dd760473 100644 --- a/Strata/DL/Lambda/TypeFactory.lean +++ b/Strata/DL/Lambda/TypeFactory.lean @@ -237,17 +237,17 @@ Examples: -/ def elimConcreteEval {T: LExprParams} [BEq T.Identifier] (d: LDatatype T.IDMeta) (m: T.Metadata) (elimName : Identifier T.IDMeta) : - (LExpr T.mono) → List (LExpr T.mono) → (LExpr T.mono) := - fun e args => + T.Metadata → List (LExpr T.mono) → Option (LExpr T.mono) := + fun _ args => match args with | x :: xs => match datatypeGetConstr d x with | .some (_, i, a, recs) => match xs[i]? with | .some f => f.mkApp m (a ++ recs.map (fun (r, rty) => elimRecCall d r rty xs m elimName)) - | .none => e - | .none => e - | _ => e + | .none => .none + | .none => .none + | _ => .none /-- The `LFunc` corresponding to the eliminator for datatype `d`, called e.g. `List$Elim` for type `List`. @@ -255,7 +255,12 @@ The `LFunc` corresponding to the eliminator for datatype `d`, called e.g. `List$ def elimFunc [Inhabited T.IDMeta] [BEq T.Identifier] (d: LDatatype T.IDMeta) (m: T.Metadata) : LFunc T := let outTyId := freshTypeArg d.typeArgs let elimName := d.name ++ "$Elim"; - { name := elimName, typeArgs := outTyId :: d.typeArgs, inputs := List.zip (genArgNames (d.constrs.length + 1)) (dataDefault d :: d.constrs.map (elimTy (.ftvar outTyId) d)), output := .ftvar outTyId, concreteEval := elimConcreteEval d m elimName} + { name := elimName, typeArgs := outTyId :: d.typeArgs, + inputs := List.zip + (genArgNames (d.constrs.length + 1)) + (dataDefault d :: d.constrs.map (elimTy (.ftvar outTyId) d)), + output := .ftvar outTyId, + concreteEval := elimConcreteEval d m elimName} --------------------------------------------------------------------- diff --git a/Strata/Languages/Boogie/Factory.lean b/Strata/Languages/Boogie/Factory.lean index 13331eec1f..fa04932458 100644 --- a/Strata/Languages/Boogie/Factory.lean +++ b/Strata/Languages/Boogie/Factory.lean @@ -54,6 +54,54 @@ match ine with | .eq m e1 e2 => .eq m (ToBoogieIdent e1) (ToBoogieIdent e2) +private def bvBinaryOp (fn:∀ {n}, BitVec n → BitVec n → BitVec n) + (check:∀ {n}, BitVec n → BitVec n → Bool) + (m:BoogieLParams.Metadata) + (ops:List (LExpr BoogieLParams.mono)) + : Option (LExpr BoogieLParams.mono) := + match ops with + | [.bitvecConst _ n1 b1, .bitvecConst _ n2 b2] => + if h : n1 = n2 then + if check (h ▸ b1) b2 then + .some (.bitvecConst m n2 (fn (h ▸ b1) b2)) + else .none + else .none + | _ => .none + +private def bvShiftOp (fn:∀ {n}, BitVec n → Nat → BitVec n) + (m:BoogieLParams.Metadata) + (ops:List (LExpr BoogieLParams.mono)) + : Option (LExpr BoogieLParams.mono) := + match ops with + | [.bitvecConst _ n1 b1, .bitvecConst _ n2 b2] => + let i2 := BitVec.toNat b2 + if n1 = n2 && i2 < n1 then + .some (.bitvecConst m n1 (fn b1 i2)) + else .none + | _ => .none + +private def bvUnaryOp (fn:∀ {n}, BitVec n → BitVec n) + (m:BoogieLParams.Metadata) + (ops:List (LExpr BoogieLParams.mono)) + : Option (LExpr BoogieLParams.mono) := + match ops with + | [.bitvecConst _ n b] => .some (.bitvecConst m n (fn b)) + | _ => .none + +private def bvBinaryPred (fn:∀ {n}, BitVec n → BitVec n → Bool) + (swap:Bool) + (m:BoogieLParams.Metadata) + (ops:List (LExpr BoogieLParams.mono)) + : Option (LExpr BoogieLParams.mono) := + match ops with + | [.bitvecConst _ n1 b1, .bitvecConst _ n2 b2] => + if h : n1 = n2 then + let res := if swap then fn b2 (h ▸ b1) else fn (h ▸ b1) b2 + .some (.boolConst m res) + else .none + | _ => .none + + private def BVOpNames := ["Neg", "Add", "Sub", "Mul", "UDiv", "UMod", "SDiv", "SMod", "Not", "And", "Or", "Xor", "Shl", "UShr", "SShr", @@ -66,6 +114,31 @@ private def BVOpAritys := "binaryPredicate", "binaryPredicate", "binaryPredicate", "binaryPredicate", "binaryPredicate", "binaryPredicate", "binaryPredicate", "binaryPredicate" ] +private def BVOpEvals := + [("Neg", Option.some (bvUnaryOp BitVec.neg)), + ("Add", .some (bvBinaryOp BitVec.add (λ_ _ => true))), + ("Sub", .some (bvBinaryOp BitVec.sub (λ_ _ => true))), + ("Mul", .some (bvBinaryOp BitVec.mul (λ_ _ => true))), + ("UDiv", .some (bvBinaryOp BitVec.udiv (λ_ y => y ≠ 0))), + ("UMod", .some (bvBinaryOp BitVec.umod (λ_ y => y ≠ 0))), + ("SDiv", .some (bvBinaryOp BitVec.sdiv (λ_ y => y ≠ 0))), + ("SMod", .some (bvBinaryOp BitVec.srem (λ_ y => y ≠ 0))), + ("Not", .some (bvUnaryOp BitVec.not)), + ("And", .some (bvBinaryOp BitVec.and (λ_ _ => true))), + ("Or", .some (bvBinaryOp BitVec.or (λ_ _ => true))), + ("Xor", .some (bvBinaryOp BitVec.xor (λ_ _ => true))), + ("Shl", .some (bvShiftOp BitVec.shiftLeft)), + ("UShr", .some (bvShiftOp BitVec.ushiftRight)), + ("SShr", .some (bvShiftOp BitVec.sshiftRight)), + ("ULt", .some (bvBinaryPred BitVec.ult false)), + ("ULe", .some (bvBinaryPred BitVec.ule false)), + ("UGt", .some (bvBinaryPred BitVec.ult true)), + ("UGe", .some (bvBinaryPred BitVec.ule true)), + ("SLt", .some (bvBinaryPred BitVec.slt false)), + ("SLe", .some (bvBinaryPred BitVec.sle false)), + ("SGt", .some (bvBinaryPred BitVec.slt true)), + ("SGe", .some (bvBinaryPred BitVec.sle true))] + /-- info: [("Neg", "unaryOp"), ("Add", "binaryOp"), ("Sub", "binaryOp"), ("Mul", "binaryOp"), ("UDiv", "binaryOp"), ("UMod", "binaryOp"), ("SDiv", "binaryOp"), ("SMod", "binaryOp"), ("Not", "unaryOp"), ("And", "binaryOp"), @@ -87,7 +160,10 @@ elab "ExpandBVOpFuncDefs" "[" sizes:num,* "]" : command => do let funcArity := mkIdent (.str (.str .anonymous "Lambda") arity) let opName := Syntax.mkStrLit s!"Bv{s}.{op}" let bvTypeName := Name.mkSimple s!"bv{s}" - elabCommand (← `(def $funcName : LFunc BoogieLParams := $funcArity $opName mty[$(mkIdent bvTypeName):ident] none)) + let opStr := Syntax.mkStrLit op + elabCommand (← `(def $funcName : LFunc BoogieLParams := + $funcArity $opName mty[$(mkIdent bvTypeName):ident] + ((BVOpEvals.find? (fun (k,_) => k == $opStr)).bind (fun (_,w)=>w)))) ExpandBVOpFuncDefs[1, 2, 8, 16, 32, 64] diff --git a/Strata/Languages/Python/PyFactory.lean b/Strata/Languages/Python/PyFactory.lean index 0d18218894..927e8dfd44 100644 --- a/Strata/Languages/Python/PyFactory.lean +++ b/Strata/Languages/Python/PyFactory.lean @@ -71,7 +71,7 @@ def reCompileFunc : LFunc Boogie.BoogieLParams := ("flags", mty[int])] output := mty[ExceptErrorRegex], concreteEval := some - (fun orig_e args => match args with + (fun _ args => match args with | [LExpr.strConst () s, LExpr.intConst () 0] => -- This function has a concrete evaluation implementation only when -- flags == 0. @@ -84,14 +84,14 @@ def reCompileFunc : LFunc Boogie.BoogieLParams := -- Note: Do not use `eb` (in Boogie.Syntax) here (e.g., see below) -- eb[(~ExceptErrorRegex_mkOK expr)] -- that captures `expr` as an `.fvar`. - LExpr.mkApp () (.op () "ExceptErrorRegex_mkOK" none) [expr] + .some (LExpr.mkApp () (.op () "ExceptErrorRegex_mkOK" none) [expr]) | some (ParseError.unimplemented msg _pattern _pos) => - LExpr.mkApp () (.op () "ExceptErrorRegex_mkErr" none) - [LExpr.mkApp () (.op () "Error_Unimplemented" none) [.strConst () (toString msg)]] + .some (LExpr.mkApp () (.op () "ExceptErrorRegex_mkErr" none) + [LExpr.mkApp () (.op () "Error_Unimplemented" none) [.strConst () (toString msg)]]) | some (ParseError.patternError msg _pattern _pos) => - LExpr.mkApp () (.op () "ExceptErrorRegex_mkErr" none) - [LExpr.mkApp () (.op () "Error_RePatternErr" none) [.strConst () (toString msg)]] - | _ => orig_e) + .some (LExpr.mkApp () (.op () "ExceptErrorRegex_mkErr" none) + [LExpr.mkApp () (.op () "Error_RePatternErr" none) [.strConst () (toString msg)]]) + | _ => .none) } def ReFactory : @Factory Boogie.BoogieLParams := diff --git a/StrataTest/DL/Lambda/LExprEvalTests.lean b/StrataTest/DL/Lambda/LExprEvalTests.lean index 016ee08ad6..7a5c7ddbfe 100644 --- a/StrataTest/DL/Lambda/LExprEvalTests.lean +++ b/StrataTest/DL/Lambda/LExprEvalTests.lean @@ -216,9 +216,9 @@ private def testBuiltIn : @Factory TestParams := let e1i := LExpr.denoteInt e1 let e2i := LExpr.denoteInt e2 match e1i, e2i with - | some x, some y => .intConst e1.metadata (x + y) - | _, _ => e - | _ => e) }, + | some x, some y => .some (.intConst e1.metadata (x + y)) + | _, _ => .none + | _ => .none) }, { name := "Int.Div", inputs := [("x", mty[int]), ("y", mty[int])], output := mty[int], @@ -228,9 +228,10 @@ private def testBuiltIn : @Factory TestParams := let e2i := LExpr.denoteInt e2 match e1i, e2i with | some x, some y => - if y == 0 then e else .intConst e1.metadata (x / y) - | _, _ => e - | _ => e) }, + if y == 0 then .none + else .some (.intConst e1.metadata (x / y)) + | _, _ => .none + | _ => .none) }, { name := "Int.Neg", inputs := [("x", mty[int])], output := mty[int], @@ -238,9 +239,9 @@ private def testBuiltIn : @Factory TestParams := | [e1] => let e1i := LExpr.denoteInt e1 match e1i with - | some x => .intConst e1.metadata (- x) - | _ => e - | _ => e) }, + | some x => .some (.intConst e1.metadata (- x)) + | _ => .none + | _ => .none) }, { name := "IntAddAlias", attr := #["inline"], @@ -298,7 +299,7 @@ example: stuck test9 := by conv at Hconst => lhs; reduce; unfold isCanonicalValue; reduce contradiction case eval_fn => - rename_i Hlfunc + rename_i Hlfunc _ conv at Hlfunc => lhs; reduce cases Hlfunc rename_i Hconst Htmp @@ -425,7 +426,7 @@ example: stuck test15 := by cases a <;> try contradiction · rename_i a a2 _ cases a2; cases a - · rename_i a a2 a3 + · rename_i a a2 a3 _ cases a3 conv at a => lhs ; reduce; unfold isCanonicalValue; reduce contradiction @@ -434,7 +435,7 @@ example: stuck test15 := by cases a2 contradiction case eval_fn => - rename_i a a2 a3 + rename_i a a2 a3 _ cases a3 conv at a => lhs ; reduce; unfold isCanonicalValue; reduce contradiction @@ -462,7 +463,7 @@ example: stuck test16 := by cases a2 contradiction case eval_fn => - rename_i a a2 a3 + rename_i a a2 a3 _ cases a3 conv at a => lhs ; reduce; unfold isCanonicalValue; reduce contradiction @@ -505,6 +506,7 @@ example: steps_well test18 := by · apply Step.eval_fn <;> try discharge_isCanonicalValue · inhabited_metadata take_step; apply Step.eval_fn <;> try discharge_isCanonicalValue + · simp; rfl · inhabited_metadata take_refl @@ -528,8 +530,8 @@ example: steps_well test19 := by · inhabited_metadata take_step · apply Step.eval_fn <;> try rfl - · inhabited_metadata · conv => lhs; reduce; unfold isCanonicalValue; reduce + · inhabited_metadata take_refl diff --git a/StrataTest/Languages/Boogie/ExprEvalTest.lean b/StrataTest/Languages/Boogie/ExprEvalTest.lean index 1c8835270c..59c06d97f4 100644 --- a/StrataTest/Languages/Boogie/ExprEvalTest.lean +++ b/StrataTest/Languages/Boogie/ExprEvalTest.lean @@ -73,6 +73,7 @@ def checkValid (e:LExpr BoogieLParams.mono): IO Bool := do | .ok (.sat _,_) => return true | _ => IO.println s!"Test failed on {e}" + IO.println s!"The query: {repr smt_term}" throw (IO.userError "- failed") /-- @@ -138,7 +139,7 @@ def checkFactoryOps (verbose:Bool): IO Unit := do print "- Has non-empty type arguments, skipping..." continue else - let cnt := 100 + let cnt := 50 let mut unsupported := false let mut cnt_skipped := 0 for _ in [0:cnt] do From ee0f0f9b55edcbde07d8c7ac7700e357bf796299 Mon Sep 17 00:00:00 2001 From: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Date: Thu, 18 Dec 2025 13:50:49 -0600 Subject: [PATCH 59/68] PyAnalyze While and FloorDiv (#283) Add handling of while loops and FloorDiv. Increase types we support for Mult. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/Languages/Python/PythonToBoogie.lean | 96 +++++++++++++-------- 1 file changed, 59 insertions(+), 37 deletions(-) diff --git a/Strata/Languages/Python/PythonToBoogie.lean b/Strata/Languages/Python/PythonToBoogie.lean index faa3cef540..685fe7fe26 100644 --- a/Strata/Languages/Python/PythonToBoogie.lean +++ b/Strata/Languages/Python/PythonToBoogie.lean @@ -41,6 +41,34 @@ def dummyDate : Boogie.Expression.Expr := .fvar () "DUMMY_DATE" none def timedeltaType : Boogie.Expression.Ty := .forAll [] (.tcons "int" []) def dummyTimedelta : Boogie.Expression.Expr := .fvar () "DUMMY_Timedelta" none +------------------------------------------------------------------------------- + +-- Translating a Python expression can require Boogie statements, e.g., a function call +-- We translate these by first defining temporary variables to store the results of the stmts +-- and then using those variables in the expression. +structure PyExprTranslated where + stmts : List Boogie.Statement + expr: Boogie.Expression.Expr + post_stmts : List Boogie.Statement := [] +deriving Inhabited + + +structure PythonFunctionDecl where + name : String + args : List (String × String) -- Elements are (arg_name, arg_ty) where `arg_ty` is the string representation of the type in Python + ret : String +deriving Repr, BEq, Inhabited + +structure PythonClassDecl where + name : String +deriving Repr, BEq, Inhabited + +structure TranslationContext where + expectedType : Option (Lambda.LMonoTy) + variableTypes : List (String × Lambda.LMonoTy) + func_infos : List PythonFunctionDecl + class_infos : List PythonClassDecl +deriving Inhabited ------------------------------------------------------------------------------- @@ -95,15 +123,23 @@ def handleSub (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := | (.tcons "Datetime" []), (.tcons "int" []) => .app () (.app () (.op () "Datetime_sub" none) lhs) rhs | _, _ => panic! s!"Unimplemented add op for {lhs} + {rhs}" -def handleMult (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := - let lty : Lambda.LMonoTy := mty[string] - let rty : Lambda.LMonoTy := mty[int] - match lty, rty with - | (.tcons "string" []), (.tcons "int" []) => - match lhs, rhs with - | .strConst () s, .intConst () i => .strConst () (String.join (List.replicate i.toNat s)) - | _, _ => panic! s!"We only handle str * int for constant strings and ints. Got: {lhs} and {rhs}" - | _, _ => panic! s!"Unimplemented add op for {lhs} + {rhs}" +def handleMult (translation_ctx: TranslationContext) (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := + match lhs, rhs with + | .strConst () s, .intConst () i => .strConst () (String.join (List.replicate i.toNat s)) + | .intConst () l, .intConst () r => .intConst () (l * r) + | .fvar () l _, .fvar () r _ => + let l := translation_ctx.variableTypes.find? (λ p => p.fst == l.name) + let r := translation_ctx.variableTypes.find? (λ p => p.fst == r.name) + match l, r with + | .some lty, .some rty => + match lty.snd, rty.snd with + | .tcons "int" [], .tcons "int" [] => .app () (.app () (.op () "Int.Mul" mty[int → (int → int)]) lhs) rhs + | _, _ => panic! s!"Unsupported types for fvar *. Types: {lty} and {rty}" + | _, _ => panic! s!"Missing needed type information for *. Exprs: {lhs} and {rhs}" + | _ , _ => panic! s!"Unsupported args for * . Got: {lhs} and {rhs}" + +def handleFloorDiv (_translation_ctx: TranslationContext) (lhs rhs: Boogie.Expression.Expr) : Boogie.Expression.Expr := + .app () (.app () (.op () "Int.Div" mty[int → (int → int)]) lhs) rhs def handleNot (arg: Boogie.Expression.Expr) : Boogie.Expression.Expr := let ty : Lambda.LMonoTy := (.tcons "ListStr" []) @@ -138,33 +174,6 @@ def PyListStrToBoogie (names : Array (Python.alias SourceRange)) : Boogie.Expres .app () (.app () (.op () "ListStr_cons" mty[string → (ListStr → ListStr)]) (PyAliasToBoogieExpr names[0]!)) (.op () "ListStr_nil" mty[ListStr]) --- Translating a Python expression can require Boogie statements, e.g., a function call --- We translate these by first defining temporary variables to store the results of the stmts --- and then using those variables in the expression. -structure PyExprTranslated where - stmts : List Boogie.Statement - expr: Boogie.Expression.Expr - post_stmts : List Boogie.Statement := [] -deriving Inhabited - - -structure PythonFunctionDecl where - name : String - args : List (String × String) -- Elements are (arg_name, arg_ty) where `arg_ty` is the string representation of the type in Python - ret : String -deriving Repr, BEq, Inhabited - -structure PythonClassDecl where - name : String -deriving Repr, BEq, Inhabited - -structure TranslationContext where - expectedType : Option (Lambda.LMonoTy) - variableTypes : List (String × Lambda.LMonoTy) - func_infos : List PythonFunctionDecl - class_infos : List PythonClassDecl -deriving Inhabited - def handleList (_elmts: Array (Python.expr SourceRange)) (expected_type : Lambda.LMonoTy): PyExprTranslated := match expected_type with | (.tcons "ListStr" _) => {stmts := [], expr := (.op () "ListStr_nil" expected_type)} @@ -421,7 +430,7 @@ partial def PyExprToBoogie (translation_ctx : TranslationContext) (e : Python.ex | .Sub _ => {stmts := lhs.stmts ++ rhs.stmts, expr := handleSub lhs.expr rhs.expr} | .Mult _ => - {stmts := lhs.stmts ++ rhs.stmts, expr := handleMult lhs.expr rhs.expr} + {stmts := lhs.stmts ++ rhs.stmts, expr := handleMult translation_ctx lhs.expr rhs.expr} | _ => panic! s!"Unhandled BinOp: {repr e}" | .Compare _ lhs op rhs => let lhs := PyExprToBoogie translation_ctx lhs @@ -609,6 +618,11 @@ partial def PyStmtToBoogie (jmp_targets: List String) (translation_ctx : Transla ([.ite guard (assign_tgt ++ (ArrPyStmtToBoogie translation_ctx body.val).fst) []], none) | _ => panic! s!"tgt must be single name: {repr tgt}" -- TODO: missing havoc + | .While _ test body _ => + -- Do one unrolling: + let guard := .app () (.op () "Bool.Not" none) (.eq () (.app () (.op () "dict_str_any_length" none) (PyExprToBoogie default test).expr) (.intConst () 0)) + ([.ite guard (ArrPyStmtToBoogie translation_ctx body.val).fst []], none) + -- TODO: missing havoc | .Assert _ a _ => let res := PyExprToBoogie translation_ctx a ([(.assert "py_assertion" res.expr)], none) @@ -621,6 +635,14 @@ partial def PyStmtToBoogie (jmp_targets: List String) (translation_ctx : Transla let new_lhs := (.strConst () "DUMMY_FLOAT") (rhs.stmts ++ [.set n.val new_lhs], none) | _ => panic! s!"Expected lhs to be name: {repr lhs}" + | .FloorDiv _ => + match lhs with + | .Name _ n _ => + let lhs := PyExprToBoogie translation_ctx lhs + let rhs := PyExprToBoogie translation_ctx rhs + let new_lhs := .app () (.app () (.op () "Int.Div" mty[int → (int → int)]) lhs.expr) rhs.expr + (rhs.stmts ++ [.set n.val new_lhs], none) + | _ => panic! s!"Expected lhs to be name: {repr lhs}" | _ => panic! s!"Unsupported AugAssign op: {repr op}" | _ => panic! s!"Unsupported {repr s}" From 22e10d7721815c869b01dbae1aeb70c07f04e8e0 Mon Sep 17 00:00:00 2001 From: Aaron Tomb Date: Thu, 18 Dec 2025 14:48:57 -0800 Subject: [PATCH 60/68] Strata language definition document (#186) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adds a document describing the semantics of Strata Core (consisting of `Lambda` and `Imperative` components). The document is written in Verso and imports the Strata library to allow docstrings to appear directly in the text. Note that Strata Core is not a new dialect, but rather a new name for the combination of `Lambda` and `Imperative`. It does not yet have a concrete syntax. Concrete syntax will likely be provided through an evolution of #224, to assist in the goal of keeping Strata Core as close to B3 as possible. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Josh Cohen Co-authored-by: Mikaël Mayer Co-authored-by: Shilpi Goel Co-authored-by: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> --- .github/workflows/ci.yml | 10 +- Strata/DL/Imperative/Cmd.lean | 17 +- Strata/DL/Imperative/CmdSemantics.lean | 23 +- Strata/DL/Imperative/MetaData.lean | 10 +- Strata/DL/Imperative/NondetStmt.lean | 13 + Strata/DL/Imperative/NondetStmtSemantics.lean | 5 +- Strata/DL/Imperative/Stmt.lean | 19 +- .../DL/Imperative/StmtSemanticsSmallStep.lean | 26 +- Strata/DL/Lambda/Identifiers.lean | 3 + Strata/DL/Lambda/LExpr.lean | 51 ++- Strata/DL/Lambda/LExprTypeEnv.lean | 22 +- Strata/DL/Lambda/LExprTypeSpec.lean | 75 +++- Strata/DL/Lambda/LTy.lean | 17 +- Strata/DL/Lambda/Semantics.lean | 61 ++-- .../dialects/Python.dialect.st.ion | Bin 7503 -> 7564 bytes docs/ddm/README.md | 23 -- docs/ddm/generate.sh | 3 - docs/ddm/lakefile.toml | 14 - docs/ddm/lean-toolchain | 1 - docs/{ddm => verso}/.gitignore | 0 .../{ddm/StrataDoc.lean => verso/DDMDoc.lean} | 2 +- .../DDMDocMain.lean} | 4 +- docs/verso/LangDefDoc.lean | 327 ++++++++++++++++++ docs/verso/LangDefDocMain.lean | 18 + docs/verso/README.md | 37 ++ docs/verso/generate.sh | 5 + docs/{ddm => verso}/lake-manifest.json | 25 +- docs/verso/lakefile.toml | 25 ++ docs/verso/lean-toolchain | 1 + docs/verso/strata-hourglass.png | Bin 0 -> 58222 bytes 30 files changed, 688 insertions(+), 149 deletions(-) delete mode 100644 docs/ddm/README.md delete mode 100755 docs/ddm/generate.sh delete mode 100644 docs/ddm/lakefile.toml delete mode 100644 docs/ddm/lean-toolchain rename docs/{ddm => verso}/.gitignore (100%) rename docs/{ddm/StrataDoc.lean => verso/DDMDoc.lean} (99%) rename docs/{ddm/StrataDocMain.lean => verso/DDMDocMain.lean} (76%) create mode 100644 docs/verso/LangDefDoc.lean create mode 100644 docs/verso/LangDefDocMain.lean create mode 100644 docs/verso/README.md create mode 100755 docs/verso/generate.sh rename docs/{ddm => verso}/lake-manifest.json (54%) create mode 100644 docs/verso/lakefile.toml create mode 100644 docs/verso/lean-toolchain create mode 100644 docs/verso/strata-hourglass.png diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 1e926e5838..b8e2d2875b 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -116,7 +116,7 @@ jobs: run: .github/scripts/checkLeanImport.sh build_doc: - name: Build Documentation + name: Build documentation runs-on: ubuntu-latest permissions: contents: read @@ -126,10 +126,10 @@ jobs: uses: leanprover/lean-action@v1 with: build-args: '--wfail' - lake-package-directory: 'docs/ddm' - - name: Build Documentation - run: lake exe docs - working-directory: docs/ddm + lake-package-directory: 'docs/verso' + - name: Build documentation + run: ./generate.sh + working-directory: docs/verso build_python: name: Build and test Python diff --git a/Strata/DL/Imperative/Cmd.lean b/Strata/DL/Imperative/Cmd.lean index 2073321cf2..b297bc7236 100644 --- a/Strata/DL/Imperative/Cmd.lean +++ b/Strata/DL/Imperative/Cmd.lean @@ -28,19 +28,22 @@ variable declaration and assignment, and assertions and assumptions. -/ /-- -A command in the Imperative dialect +A an atomic command in the `Imperative` dialect. + +Commands don't create local control flow, and are typically used as a parameter +to `Imperative.Stmt` or other similar types. -/ inductive Cmd (P : PureExpr) : Type where - /-- `init` defines a variable called `name` with type `ty` and - initial value `e`. -/ + /-- Define a variable called `name` with type `ty` and initial value `e`. + Note: we may make the initial value optional. -/ | init (name : P.Ident) (ty : P.Ty) (e : P.Expr) (md : (MetaData P) := .empty) - /-- `set` assigns `e` to a pre-existing variable `name`. -/ + /-- Assign `e` to a pre-existing variable `name`. -/ | set (name : P.Ident) (e : P.Expr) (md : (MetaData P) := .empty) - /-- `havoc` assigns a pre-existing variable `name` a random value. -/ + /-- Assigns an arbitrary value to an existing variable `name`. -/ | havoc (name : P.Ident) (md : (MetaData P) := .empty) - /-- `assert` checks whether condition `b` is true. -/ + /-- Check whether condition `b` is true, failing if not. -/ | assert (label : String) (b : P.Expr) (md : (MetaData P) := .empty) - /-- `assume` constrains execution by adding assumption `b`. -/ + /-- Ignore any execution state in which `b` is not true. -/ | assume (label : String) (b : P.Expr) (md : (MetaData P) := .empty) abbrev Cmds (P : PureExpr) := List (Cmd P) diff --git a/Strata/DL/Imperative/CmdSemantics.lean b/Strata/DL/Imperative/CmdSemantics.lean index d29c3725ce..bf39e1ecd6 100644 --- a/Strata/DL/Imperative/CmdSemantics.lean +++ b/Strata/DL/Imperative/CmdSemantics.lean @@ -234,10 +234,15 @@ def WellFormedSemanticEvalVar {P : PureExpr} [HasFvar P] (δ : SemanticEval P) def WellFormedSemanticEvalExprCongr {P : PureExpr} [HasVarsPure P P.Expr] (δ : SemanticEval P) : Prop := ∀ e σ σ', (∀ x ∈ HasVarsPure.getVars e, σ x = σ' x) → δ σ e = δ σ' e + /-- -An inductive rule for state update. +Abstract variable update. + +This does not specify how `σ` is represented, only what it maps each variable to. -/ inductive UpdateState : SemanticStore P → P.Ident → P.Expr → SemanticStore P → Prop where + /-- The state `σ'` is be equivalent to `σ` except at `x`, where it maps to + `v`. Requires that `x` mapped to something beforehand. -/ | update : σ x = .some v' → σ' x = .some v → @@ -246,9 +251,13 @@ inductive UpdateState : SemanticStore P → P.Ident → P.Expr → SemanticStore UpdateState σ x v σ' /-- -An inductive rule for state init. +Abtract variable initialization. + +This does not specify how `σ` is represented, only what it maps each variable to. -/ inductive InitState : SemanticStore P → P.Ident → P.Expr → SemanticStore P → Prop where + /-- The state `σ'` is be equivalent to `σ` except at `x`, where it maps to + `v`. Requires that `x` mapped to nothing beforehand. -/ | init : σ x = none → σ' x = .some v → @@ -257,11 +266,12 @@ inductive InitState : SemanticStore P → P.Ident → P.Expr → SemanticStore P InitState σ x v σ' /-- -An inductively-defined operational semantics that depends on -environment lookup and evaluation functions for expressions. +An inductively-defined operational semantics for `Cmd` that depends on variable +lookup (`σ`) and expression evaluation (`δ`) functions. -/ inductive EvalCmd [HasFvar P] [HasBool P] [HasNot P] : SemanticEval P → SemanticStore P → Cmd P → SemanticStore P → Prop where + /-- If `e` evaluates to a value `v`, initialize `x` according to `InitState`. -/ | eval_init : δ σ e = .some v → InitState P σ x v σ' → @@ -269,6 +279,7 @@ inductive EvalCmd [HasFvar P] [HasBool P] [HasNot P] : --- EvalCmd δ σ (.init x _ e _) σ' + /-- If `e` evaluates to a value `v`, assign `x` according to `UpdateState`. -/ | eval_set : δ σ e = .some v → UpdateState P σ x v σ' → @@ -276,18 +287,22 @@ inductive EvalCmd [HasFvar P] [HasBool P] [HasNot P] : ---- EvalCmd δ σ (.set x e _) σ' + /-- Assign `x` an arbitrary value `v` according to `UpdateState`. -/ | eval_havoc : UpdateState P σ x v σ' → WellFormedSemanticEvalVar δ → ---- EvalCmd δ σ (.havoc x _) σ' + /-- If `e` evaluates to true in `σ`, evaluate to the same `σ`. This semantics + does not have a concept of an erroneous execution. -/ | eval_assert : δ σ e = .some HasBool.tt → WellFormedSemanticEvalBool δ → ---- EvalCmd δ σ (.assert _ e _) σ + /-- If `e` evaluates to true in `σ`, evaluate to the same `σ`. -/ | eval_assume : δ σ e = .some HasBool.tt → WellFormedSemanticEvalBool δ → diff --git a/Strata/DL/Imperative/MetaData.lean b/Strata/DL/Imperative/MetaData.lean index e27866997c..45ed2ff095 100644 --- a/Strata/DL/Imperative/MetaData.lean +++ b/Strata/DL/Imperative/MetaData.lean @@ -24,13 +24,15 @@ open Std (ToFormat Format format) variable {Identifier : Type} [DecidableEq Identifier] [ToFormat Identifier] [Inhabited Identifier] -/-- A metadata field. +/-- A metadata field, which can be either a variable or an arbitrary string label. For now, we only track the variables modified by a construct, but we will expand this in the future. -/ inductive MetaDataElem.Field (P : PureExpr) where + /-- Metadata indexed by a Strata variable. -/ | var (v : P.Ident) + /-- Metadata indexed by an arbitrary label. -/ | label (l : String) @[grind] @@ -61,9 +63,11 @@ instance [Repr P.Ident] : Repr (MetaDataElem.Field P) where | .label s => f!"MetaDataElem.Field.label {s}" Repr.addAppParen res prec -/-- A metadata value. -/ +/-- A metadata value, which can be either an expression or a message. -/ inductive MetaDataElem.Value (P : PureExpr) where + /-- Metadata value in the form of a structured expression. -/ | expr (e : P.Expr) + /-- Metadata value in the form of an arbitrary string. -/ | msg (s : String) instance [ToFormat P.Expr] : ToFormat (MetaDataElem.Value P) where @@ -103,7 +107,9 @@ instance [DecidableEq P.Expr] : DecidableEq (MetaDataElem.Value P) := /-- A metadata element -/ structure MetaDataElem (P : PureExpr) where + /-- The field or key used to identify the metadata. -/ fld : MetaDataElem.Field P + /-- The value of the metadata. -/ value : MetaDataElem.Value P /-- Metadata is an array of tagged elements. -/ diff --git a/Strata/DL/Imperative/NondetStmt.lean b/Strata/DL/Imperative/NondetStmt.lean index 2eb88f87e5..8b22aec85a 100644 --- a/Strata/DL/Imperative/NondetStmt.lean +++ b/Strata/DL/Imperative/NondetStmt.lean @@ -22,10 +22,23 @@ Comamnds](https://en.wikipedia.org/wiki/Guarded_Command_Language), and in [Kleene Algebra with Tests](https://www.cs.cornell.edu/~kozen/Papers/kat.pdf). -/ +/-- +A non-deterministic statement, parameterized by a type of pure expressions (`P`) +and a type of commands (`Cmd`). + +This encodes the same types of control flow as `Stmt`, but using only +non-deterministic choices: arbitrarily choosing one of two sub-statements to +execute or executing a sub-statement an arbitrary number of times. Conditions +can be encoded if the command type includes assumptions. +-/ inductive NondetStmt (P : PureExpr) (Cmd : Type) : Type where + /-- An atomic command, of an arbitrary type. -/ | cmd (cmd : Cmd) + /-- Execute `s1` followed by `s2`. -/ | seq (s1 s2 : NondetStmt P Cmd) + /-- Execute either `s1` or `s2`, arbitrarily. -/ | choice (s1 s2 : NondetStmt P Cmd) + /-- Execute `s` an arbitrary number of times (possibly zero). -/ | loop (s : NondetStmt P Cmd) deriving Inhabited diff --git a/Strata/DL/Imperative/NondetStmtSemantics.lean b/Strata/DL/Imperative/NondetStmtSemantics.lean index 929d60819d..78a402926b 100644 --- a/Strata/DL/Imperative/NondetStmtSemantics.lean +++ b/Strata/DL/Imperative/NondetStmtSemantics.lean @@ -14,8 +14,9 @@ namespace Imperative mutual /-- An inductively-defined operational semantics for non-deterministic -statements that depends on environment lookup and evaluation functions -for expressions. -/ +statements that depends on environment lookup and evaluation functions for +expressions. **NOTE:** This will probably be replaced with a small-step +semantics. -/ inductive EvalNondetStmt (P : PureExpr) (Cmd : Type) (EvalCmd : EvalCmdParam P Cmd) [HasVarsImp P (List (Stmt P Cmd))] [HasVarsImp P Cmd] [HasFvar P] [HasBool P] [HasNot P] : SemanticEval P → SemanticStore P → NondetStmt P Cmd → SemanticStore P → Prop where diff --git a/Strata/DL/Imperative/Stmt.lean b/Strata/DL/Imperative/Stmt.lean index 3bc8eae323..0e1ffafdb1 100644 --- a/Strata/DL/Imperative/Stmt.lean +++ b/Strata/DL/Imperative/Stmt.lean @@ -17,17 +17,30 @@ Imperative's Statements include commands and add constructs like structured and unstructured control-flow. -/ +/-- Imperative statements focused on control flow. + +The `P` parameter specifies the type of expressions that appear in conditional +and loop guards. The `Cmd` parameter specifies the type of atomic command +contained within the `.cmd` constructor. +-/ inductive Stmt (P : PureExpr) (Cmd : Type) : Type where + /-- An atomic command. -/ | cmd (cmd : Cmd) + /-- An block containing a `List` of `Stmt`. -/ | block (label : String) (b : List (Stmt P Cmd)) (md : MetaData P := .empty) - /-- `ite` (if-then-else) statement provides structured control flow. -/ + /-- A conditional execution statement. -/ | ite (cond : P.Expr) (thenb : List (Stmt P Cmd)) (elseb : List (Stmt P Cmd)) (md : MetaData P := .empty) - /-- `loop` Loop statement with optional measure (for termination) and invariant. -/ + /-- An iterated execution statement. Includes an optional measure (for + termination) and invariant. -/ | loop (guard : P.Expr) (measure : Option P.Expr) (invariant : Option P.Expr) (body : List (Stmt P Cmd)) (md : MetaData P := .empty) - /-- `goto` provides unstructured control flow. -/ + /-- A semi-structured control flow statement transferring control to the given + label. The control flow induced by `goto` must not create cycles. **NOTE:** + This will likely be removed, in favor of an alternative view of imperative + programs that is purely untructured. -/ | goto (label : String) (md : MetaData P := .empty) deriving Inhabited +/-- A block is simply an abbreviation for a list of commands. -/ abbrev Block (P : PureExpr) (Cmd : Type) := List (Stmt P Cmd) def Stmt.isCmd {P : PureExpr} {Cmd : Type} (s : Stmt P Cmd) : Bool := diff --git a/Strata/DL/Imperative/StmtSemanticsSmallStep.lean b/Strata/DL/Imperative/StmtSemanticsSmallStep.lean index 7fe49797dd..5cb9089876 100644 --- a/Strata/DL/Imperative/StmtSemanticsSmallStep.lean +++ b/Strata/DL/Imperative/StmtSemanticsSmallStep.lean @@ -20,12 +20,15 @@ dialect's statement constructs. /-- Configuration for small-step semantics, representing the current execution state. A configuration consists of: -- The current statement being executed +- The current statement (or list of statements) being executed - The current store -/ inductive Config (P : PureExpr) (CmdT : Type) : Type where + /-- A single statement to execute next. -/ | stmt : Stmt P CmdT → SemanticStore P → Config P CmdT + /-- A list of statements to execute next, in order. -/ | stmts : List (Stmt P CmdT) → SemanticStore P → Config P CmdT + /-- A terminal configuration, indicating that execution has finished. -/ | terminal : SemanticStore P → Config P CmdT /-- @@ -41,8 +44,7 @@ inductive StepStmt [HasBool P] [HasNot P] : SemanticEval P → SemanticStore P → Config P CmdT → Config P CmdT → Prop where - /-- Command: a command steps to terminal configuration if it - evaluates successfully -/ + /-- A command steps to terminal configuration if it evaluates successfully -/ | step_cmd : EvalCmd δ σ c σ' → ---- @@ -50,13 +52,14 @@ inductive StepStmt (.stmt (.cmd c) σ) (.terminal σ') - /-- Block: a labeled block steps to its statement list -/ + /-- A labeled block steps to its statement list. -/ | step_block : StepStmt P EvalCmd δ σ (.stmt (.block _ ss _) σ) (.stmts ss σ) - /-- Conditional (true): if condition evaluates to true, step to then-branch -/ + /-- If the condition of an `ite` statement evaluates to true, step to the then + branch. -/ | step_ite_true : δ σ c = .some HasBool.tt → WellFormedSemanticEvalBool δ → @@ -65,7 +68,8 @@ inductive StepStmt (.stmt (.ite c tss ess _) σ) (.stmts tss σ) - /-- Conditional (false): if condition evaluates to false, step to else-branch -/ + /-- If the condition of an `ite` statement evaluates to false, step to the else + branch. -/ | step_ite_false : δ σ c = .some HasBool.ff → WellFormedSemanticEvalBool δ → @@ -74,7 +78,7 @@ inductive StepStmt (.stmt (.ite c tss ess _) σ) (.stmts ess σ) - /-- Loop (guard true): if guard is true, execute body then loop again -/ + /-- If a loop guard is true, execute the body and then loop again. -/ | step_loop_enter : δ σ g = .some HasBool.tt → WellFormedSemanticEvalBool δ → @@ -83,7 +87,7 @@ inductive StepStmt (.stmt (.loop g m inv body md) σ) (.stmts (body ++ [.loop g m inv body md]) σ) - /-- Loop (guard false): if guard is false, terminate the loop -/ + /-- If a loop guard is false, terminate the loop. -/ | step_loop_exit : δ σ g = .some HasBool.ff → WellFormedSemanticEvalBool δ → @@ -94,14 +98,14 @@ inductive StepStmt /- Goto: not implemented, because we plan to remove it. -/ - /-- Empty statement list: no statements left to execute -/ + /-- An empty list of statements steps to `.terminal` with no state changes. -/ | step_stmts_nil : StepStmt P EvalCmd δ σ (.stmts [] σ) (.terminal σ) - /-- Statement composition: after executing a statement, continue with - remaining statements -/ + /-- To evaluate a sequence of statements, evaluate the first statement and + then evaluate the remaining statements in the resulting state. -/ | step_stmt_cons : StepStmt P EvalCmd δ σ (.stmt s σ) (.terminal σ') → ---- diff --git a/Strata/DL/Lambda/Identifiers.lean b/Strata/DL/Lambda/Identifiers.lean index 3f1b24354c..82944ec1cd 100644 --- a/Strata/DL/Lambda/Identifiers.lean +++ b/Strata/DL/Lambda/Identifiers.lean @@ -20,7 +20,10 @@ section Identifiers Identifiers with a name and additional metadata -/ structure Identifier (IDMeta : Type) : Type where + /-- A unique name. -/ name : String + /-- Any additional metadata that it would be useful to attach to an + identifier. -/ metadata : IDMeta deriving Repr, DecidableEq, Inhabited diff --git a/Strata/DL/Lambda/LExpr.lean b/Strata/DL/Lambda/LExpr.lean index 19bc6939c5..ee45f88276 100644 --- a/Strata/DL/Lambda/LExpr.lean +++ b/Strata/DL/Lambda/LExpr.lean @@ -42,7 +42,9 @@ Expected interface for pure expressions that can be used to specialize the Imperative dialect. -/ structure LExprParams : Type 1 where + /-- The type of metadata allowed on expressions. -/ Metadata: Type + /-- The type of metadata allowed on identifiers. -/ IDMeta : Type deriving Inhabited @@ -50,7 +52,9 @@ structure LExprParams : Type 1 where Extended LExprParams that includes TypeType parameter. -/ structure LExprParamsT : Type 1 where + /-- The base parameters, with the types for expression and identifier metadata. -/ base : LExprParams + /-- The type of types used to annotate expressions. -/ TypeType : Type deriving Inhabited @@ -73,16 +77,32 @@ abbrev LExprParams.typed (T: LExprParams): LExprParams := abbrev LExprParamsT.typed (T: LExprParamsT): LExprParamsT := ⟨T.base.typed, LMonoTy⟩ +/-- +Lambda constants. + +Constants are integers, strings, reals, bitvectors of a fixed length, or +booleans. +-/ inductive LConst : Type where + /-- An unbounded integer constant. -/ | intConst (i: Int) + + /-- A string constant, using Lean's `String` type for a sequence of Unicode + code points encoded with UTF-8. -/ | strConst (s: String) + + /-- A real constant, represented as a rational number. -/ | realConst (r: Rat) + + /-- A bit vector constant, represented using Lean's `BitVec` type. -/ | bitvecConst (n: Nat) (b: BitVec n) + + /-- A Boolean constant. -/ | boolConst (b: Bool) deriving Repr, DecidableEq /-- -Lambda Expressions with Quantifiers. +Lambda expressions with quantifiers. Like Lean's own expressions, we use the locally nameless representation for this abstract syntax. @@ -93,29 +113,32 @@ We leave placeholders for type annotations only for constants (`.const`), operations (`.op`), binders (`.abs`, `.quant`), and free variables (`.fvar`). -LExpr is parameterized by `TypeType`, which represents -user-allowed type annotations (optional), and `Identifier` for allowed -identifiers. For a fully annotated AST, see `LExprT` that is created after the -type inference transform. +LExpr is parameterized by `LExprParamsT`, which includes arbitrary metadata, +user-allowed type annotations (optional), and special metadata to attach to +`Identifier`s. Type inference adds any missing type annotations. -/ inductive LExpr (T : LExprParamsT) : Type where - /-- `.const c ty`: constants (in the sense of literals). -/ + /-- A constant (in the sense of literals). -/ | const (m: T.base.Metadata) (c: LConst) - /-- `.op c ty`: operation names. -/ + /-- A built-in operation, referred to by name. -/ | op (m: T.base.Metadata) (o : Identifier T.base.IDMeta) (ty : Option T.TypeType) - /-- `.bvar deBruijnIndex`: bound variable. -/ + /-- A bound variable, in de Bruijn form. -/ | bvar (m: T.base.Metadata) (deBruijnIndex : Nat) - /-- `.fvar name ty`: free variable, with an option (mono)type annotation. -/ + /-- A free variable, with an optional type annotation. -/ | fvar (m: T.base.Metadata) (name : Identifier T.base.IDMeta) (ty : Option T.TypeType) - /-- `.abs ty e`: abstractions; `ty` the is type of bound variable. -/ + /-- An abstraction, where `ty` the is (optional) type of bound variable. -/ | abs (m: T.base.Metadata) (ty : Option T.TypeType) (e : LExpr T) - /-- `.quant k ty tr e`: quantified expressions; `ty` the is type of bound variable, and `tr` the trigger. -/ + /-- A quantified expression, where `k` indicates whether it is universally or + existentially quantified, `ty` is the type of bound variable, and `trigger` is + a trigger pattern (primarily for use with SMT). -/ | quant (m: T.base.Metadata) (k : QuantifierKind) (ty : Option T.TypeType) (trigger: LExpr T) (e : LExpr T) - /-- `.app fn e`: function application. -/ + /-- A function application. -/ | app (m: T.base.Metadata) (fn e : LExpr T) - /-- `.ite c t e`: if-then-else expression. -/ + /-- A conditional expression. This is a constructor rather than a built-in + operation because it occurs so frequently. -/ | ite (m: T.base.Metadata) (c t e : LExpr T) - /-- `.eq e1 e2`: equality expression. -/ + /-- An equality expression. This is a constructor rather than a built-in + operation because it occurs so frequently. -/ | eq (m: T.base.Metadata) (e1 e2 : LExpr T) instance [Repr T.base.Metadata] [Repr T.TypeType] [Repr T.base.IDMeta] : Repr (LExpr T) where diff --git a/Strata/DL/Lambda/LExprTypeEnv.lean b/Strata/DL/Lambda/LExprTypeEnv.lean index d6ee8f505f..5545774c2b 100644 --- a/Strata/DL/Lambda/LExprTypeEnv.lean +++ b/Strata/DL/Lambda/LExprTypeEnv.lean @@ -55,18 +55,20 @@ instance : ToFormat TypeAlias where variable {T: LExprParams} [DecidableEq T.IDMeta] [ToFormat T.Metadata] [ToFormat T.IDMeta] /-- -A type context contains two maps: `types` and `aliases`. - -The `types` field maps free variables in expressions (i.e., `LExpr.fvar`s) to -their type schemes. This is essentially a stack to account for variable scopes. - -The `aliases` field maps type synonyms to their corresponding type definitions. -We expect these type definitions to not be aliases themselves, to avoid any -cycles in the map (see `TEnv.addTypeAlias`). +A type context describing the types of free variables and the mappings of type +aliases. -/ structure TContext (IDMeta : Type) where + + /-- A map from free variables in expressions (i.e., `LExpr.fvar`s) to their + type schemes. This is essentially a stack to account for variable scopes. -/ types : Maps (Identifier IDMeta) LTy := [] + + /-- A map from type synonym names to their corresponding type definitions. We + expect these type definitions to not be aliases themselves, to avoid any + cycles in the map (see `TEnv.addTypeAlias`). -/ aliases : List TypeAlias := [] + deriving DecidableEq, Repr, Inhabited instance {IDMeta} [ToFormat IDMeta] : ToFormat (TContext IDMeta) where @@ -240,9 +242,13 @@ Invariant: all functions defined in `TypeFactory.genFactory` for `datatypes` should be in `functions`. -/ structure LContext (T: LExprParams) where + /-- Descriptions of all built-in functions. -/ functions : @Factory T + /-- Descriptions of all built-in datatypes. -/ datatypes : @TypeFactory T.IDMeta + /-- A list of known built-in types. -/ knownTypes : KnownTypes + /-- The set of identifiers that have been seen or generated so far. -/ idents : Identifiers T.IDMeta deriving Inhabited diff --git a/Strata/DL/Lambda/LExprTypeSpec.lean b/Strata/DL/Lambda/LExprTypeSpec.lean index c48cc23131..289a40ac1a 100644 --- a/Strata/DL/Lambda/LExprTypeSpec.lean +++ b/Strata/DL/Lambda/LExprTypeSpec.lean @@ -58,31 +58,51 @@ def LTy.openFull (ty: LTy) (tys: List LMonoTy) : LMonoTy := LMonoTy.subst [(List.zip (LTy.boundVars ty) tys)] (LTy.toMonoTypeUnsafe ty) /-- -Typing relation for `LExpr`s. +Typing relation for `LExpr`s with respect to `LTy`. + +The typing relation is parameterized by two contexts. An `LContext` contains +known types and functions while a `TContext` associates free variables with +their types. -/ inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C: LContext T): (TContext T.IDMeta) → LExpr T.mono → LTy → Prop where + + /-- A boolean constant has type `.bool` if `bool` is a known type in this + context. -/ | tbool_const : ∀ Γ m b, C.knownTypes.containsName "bool" → HasType C Γ (.boolConst m b) (.forAll [] .bool) + + /-- An integer constant has type `.int` if `int` is a known type in this + context. -/ | tint_const : ∀ Γ m n, C.knownTypes.containsName "int" → HasType C Γ (.intConst m n) (.forAll [] .int) + + /-- A real constant has type `.real` if `real` is a known type in this + context. -/ | treal_const : ∀ Γ m r, C.knownTypes.containsName "real" → HasType C Γ (.realConst m r) (.forAll [] .real) + + /-- A string constant has type `.string` if `string` is a known type in this + context. -/ | tstr_const : ∀ Γ m s, C.knownTypes.containsName "string" → HasType C Γ (.strConst m s) (.forAll [] .string) + + /-- A bit vector constant of size `n` has type `.bitvec n` if `bitvec` is a + known type in this context. -/ | tbitvec_const : ∀ Γ m n b, C.knownTypes.containsName "bitvec" → HasType C Γ (.bitvecConst m n b) (.forAll [] (.bitvec n)) + + /-- An un-annotated variable has the type recorded for it in `Γ`, if any. -/ | tvar : ∀ Γ m x ty, Γ.types.find? x = some ty → HasType C Γ (.fvar m x none) ty - /- - For an annotated free variable (or operator, see `top_annotated`), it must be - the case that the claimed type `ty_s` is an instantiation of the general type - `ty_o`. It suffices to show the existence of a list `tys` that, when - substituted for the bound variables in `ty_o`, results in `ty_s`. + + /-- + An annotated free variable has its claimed type `ty_s` if `ty_s` is an + instantiation of the type `ty_o` recorded for it in `Γ`. -/ | tvar_annotated : ∀ Γ m x ty_o ty_s tys, Γ.types.find? x = some ty_o → @@ -90,6 +110,11 @@ inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C: LContext T): LTy.openFull ty_o tys = ty_s → HasType C Γ (.fvar m x (some ty_s)) (.forAll [] ty_s) + /-- + An abstraction `λ x.e` has type `x_ty → e_ty` if the claimed type of `x` is + `x_ty` or None and if `e` has type `e_ty` when `Γ` is extended with the + binding `(x → x_ty)`. + -/ | tabs : ∀ Γ m x x_ty e e_ty o, LExpr.fresh x e → (hx : LTy.isMonoType x_ty) → @@ -99,6 +124,11 @@ inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C: LContext T): HasType C Γ (.abs m o e) (.forAll [] (.tcons "arrow" [(LTy.toMonoType x_ty hx), (LTy.toMonoType e_ty he)])) + + /-- + An application `e₁e₂` has type `t1` if `e₁` has type `t2 → t1` and `e₂` has + type `t2`. + -/ | tapp : ∀ Γ m e1 e2 t1 t2, (h1 : LTy.isMonoType t1) → (h2 : LTy.isMonoType t2) → @@ -107,32 +137,46 @@ inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C: LContext T): HasType C Γ e2 t2 → HasType C Γ (.app m e1 e2) t1 - -- `ty` is more general than `e_ty`, so we can instantiate `ty` with `e_ty`. + /-- + If expression `e` has type `ty` and `ty` is more general than `e_ty`, + then `e` has type `e_ty` (i.e. we can instantiate `ty` with `e_ty`). + -/ | tinst : ∀ Γ e ty e_ty x x_ty, HasType C Γ e ty → e_ty = LTy.open x x_ty ty → HasType C Γ e e_ty - -- The generalization rule will let us do things like the following: - -- `(·ftvar "a") → (.ftvar "a")` (or `a → a`) will be generalized to - -- `(.btvar 0) → (.btvar 0)` (or `∀a. a → a`), assuming `a` is not in the - -- context. + /-- + If `e` has type `ty`, it also has type `∀ a. ty` as long as `a` is fresh. + For instance, `(·ftvar "a") → (.ftvar "a")` (or `a → a`) + can be generalized to `(.btvar 0) → (.btvar 0)` (or `∀a. a → a`), assuming + `a` is not in the context. + -/ | tgen : ∀ Γ e a ty, HasType C Γ e ty → TContext.isFresh a Γ → HasType C Γ e (LTy.close a ty) + /-- If `e1` and `e2` have the same type `ty`, and `c` has type `.bool`, then + `.ite c e1 e2` has type `ty`. -/ | tif : ∀ Γ m c e1 e2 ty, HasType C Γ c (.forAll [] .bool) → HasType C Γ e1 ty → HasType C Γ e2 ty → HasType C Γ (.ite m c e1 e2) ty + /-- If `e1` and `e2` have the same type `ty`, then `.eq e1 e2` has type + `.bool`. -/ | teq : ∀ Γ m e1 e2 ty, HasType C Γ e1 ty → HasType C Γ e2 ty → HasType C Γ (.eq m e1 e2) (.forAll [] .bool) + /-- + A quantifier `∀/∃ {x: tr}.e` has type `bool` if the claimed type of `x` is + `x_ty` or None, and if, when `Γ` is extended with the binding `(x → x_ty)`, + `e` has type `bool` and `tr` is well-typed. + -/ | tquant: ∀ Γ m k tr tr_ty x x_ty e o, LExpr.fresh x e → (hx : LTy.isMonoType x_ty) → @@ -140,12 +184,17 @@ inductive HasType {T: LExprParams} [DecidableEq T.IDMeta] (C: LContext T): HasType C {Γ with types := Γ.types.insert x.fst x_ty} (LExpr.varOpen 0 x tr) tr_ty → o = none ∨ o = some (x_ty.toMonoType hx) → HasType C Γ (.quant m k o tr e) (.forAll [] .bool) + + /-- + An un-annotated operator has the type recorded for it in `C.functions`, if any. + -/ | top: ∀ Γ m f op ty, C.functions.find? (fun fn => fn.name == op) = some f → f.type = .ok ty → HasType C Γ (.op m op none) ty - /- - See comments in `tvar_annotated`. + /-- + Similarly to free variables, an annotated operator has its claimed type `ty_s` if `ty_s` is an + instantiation of the type `ty_o` recorded for it in `C.functions`. -/ | top_annotated: ∀ Γ m f op ty_o ty_s tys, C.functions.find? (fun fn => fn.name == op) = some f → diff --git a/Strata/DL/Lambda/LTy.lean b/Strata/DL/Lambda/LTy.lean index ea047d6db6..296644d1a4 100644 --- a/Strata/DL/Lambda/LTy.lean +++ b/Strata/DL/Lambda/LTy.lean @@ -20,21 +20,21 @@ namespace Lambda open Std (ToFormat Format format) +/-- Type identifiers. For now, these are just strings. -/ abbrev TyIdentifier := String instance : Coe String TyIdentifier where coe := id -/-- -Types in Lambda: these are mono-types. Note that all free type variables -(`.ftvar`) are implicitly universally quantified. --/ +/-- Monomorphic types in Lambda. Note that all free type variables (`.ftvar`) +are implicitly universally quantified. -/ inductive LMonoTy : Type where - /-- Type variable. -/ + /-- A type variable. -/ | ftvar (name : TyIdentifier) - /-- Type constructor. -/ + /-- A type constructor. -/ | tcons (name : String) (args : List LMonoTy) - /-- Special support for bitvector types of every size. -/ + /-- A bit vector type. This is a special case so that it can be parameterized + by a size. -/ | bitvec (size : Nat) deriving Inhabited, Repr @@ -120,9 +120,10 @@ def LMonoTy.getArrowArgs (t: LMonoTy) : List LMonoTy := | _ => [] /-- -Type schemes (poly-types) in Lambda. +Polymorphic type schemes in Lambda. -/ inductive LTy : Type where + /-- A type containing universally quantified type variables. -/ | forAll (vars : List TyIdentifier) (ty : LMonoTy) deriving Inhabited, Repr diff --git a/Strata/DL/Lambda/Semantics.lean b/Strata/DL/Lambda/Semantics.lean index 41d5b09072..bb7261f68c 100644 --- a/Strata/DL/Lambda/Semantics.lean +++ b/Strata/DL/Lambda/Semantics.lean @@ -28,63 +28,72 @@ def Scopes.toEnv (s:Scopes Tbase) : Env Tbase := fun t => (s.find? t).map (·.snd) /-- -A small-step semantics of LExpr. -Currently only defined for LMonoTy, but it will be expanded to an arbitrary -type in the future. +A small-step semantics for `LExpr`. + +Currently only defined for expressions paremeterized by `LMonoTy`, but it will +be expanded to an arbitrary type in the future. + The order of constructors matter because the `constructor` tactic will rely on it. -This small-step definitions faithfully follows the behavior of LExpr.eval, -except that -(1) This inductive definition may stuck early when there is no -assignment to a free variable available. -(2) This semantics does not describe how the metadata must change, because -metadata must not affect evaluation semantics. Different concrete evaluators -like LExpr.eval can use different strategy for updating metadata. + +This small-step definitions faithfully follows the behavior of `LExpr.eval`, +except that: +1. This inductive definition may get stuck early when there is no + assignment to a free variable available. + +2. This semantics does not describe how metadata must change, because + metadata must not affect evaluation semantics. Different concrete evaluators + like `LExpr.eval` can have different strategy for updating metadata. -/ inductive Step (F:@Factory Tbase) (rf:Env Tbase) : LExpr Tbase.mono → LExpr Tbase.mono → Prop where --- A free variable. Stuck if fvar does not exist in FreeVarMap. +/-- A free variable. Stuck if `fvar` does not exist in `FreeVarMap`. -/ | expand_fvar: ∀ (x:Tbase.Identifier) (e:LExpr Tbase.mono), rf x = .some e → Step F rf (.fvar m x ty) e --- Beta reduction for lambda; Call-by-value semantics. +/-- Call-by-value semantics: beta reduction. -/ | beta: ∀ (e1 v2 eres:LExpr Tbase.mono), LExpr.isCanonicalValue F v2 → eres = LExpr.subst (fun _ => v2) e1 → Step F rf (.app m1 (.abs m2 ty e1) v2) eres --- Call-by-value semantics. +/-- Call-by-value semantics: argument evaluation. -/ | reduce_2: ∀ (v1 e2 e2':LExpr Tbase.mono), LExpr.isCanonicalValue F v1 → Step F rf e2 e2' → Step F rf (.app m v1 e2) (.app m' v1 e2') +/-- Call-by-value semantics: function evaluation. -/ | reduce_1: ∀ (e1 e1' e2:LExpr Tbase.mono), Step F rf e1 e1' → Step F rf (.app m e1 e2) (.app m' e1' e2) --- For ite x e1 e2, do not eagerly evaluate e1 and e2. --- For the reduction order, ite x e1 e2 is interpreted as --- 'ite x (λ.e1) (λ.e2)'. +/-- Lazy evaluation of `ite`: condition is true. To evaluate `ite x e1 e2`, do +not first evaluate `e1` and `e2`. In other words, `ite x e1 e2` is interpreted +as `ite x (λ.e1) (λ.e2)`. -/ | ite_reduce_then: ∀ (ethen eelse:LExpr Tbase.mono), Step F rf (.ite m (.const mc (.boolConst true)) ethen eelse) ethen +/-- Lazy evaluation of `ite`: condition is false. To evaluate `ite x e1 e2`, do +not first evaluate `e1` and `e2`. In other words, `ite x e1 e2` is interpreted +as `ite x (λ.e1) (λ.e2)`. -/ | ite_reduce_else: ∀ (ethen eelse:LExpr Tbase.mono), Step F rf (.ite m (.const mc (.boolConst false)) ethen eelse) eelse +/-- Evaluation of `ite` condition. -/ | ite_reduce_cond: ∀ (econd econd' ethen eelse:LExpr Tbase.mono), Step F rf econd econd' → Step F rf (.ite m econd ethen eelse) (.ite m' econd' ethen eelse) --- Equality. Reduce after both operands evaluate to values. +/-- Evaluation of equality. Reduce after both operands evaluate to values. -/ | eq_reduce: ∀ (e1 e2 eres:LExpr Tbase.mono) (H1:LExpr.isCanonicalValue F e1) @@ -92,21 +101,24 @@ inductive Step (F:@Factory Tbase) (rf:Env Tbase) eres = .const mc (.boolConst (LExpr.eql F e1 e2 H1 H2)) → Step F rf (.eq m e1 e2) eres +/-- Evaluation of the left-hand side of an equality. -/ | eq_reduce_lhs: ∀ (e1 e1' e2:LExpr Tbase.mono), Step F rf e1 e1' → Step F rf (.eq m e1 e2) (.eq m' e1' e2) +/-- Evaluation of the right-hand side of an equality. -/ | eq_reduce_rhs: ∀ (v1 e2 e2':LExpr Tbase.mono), LExpr.isCanonicalValue F v1 → Step F rf e2 e2' → Step F rf (.eq m v1 e2) (.eq m' v1 e2') --- Expand functions and free variables when they are evaluated. --- If the function body is unknown, concreteEval can be instead used. Look at --- the eval_fn constructor below. --- This is consistent with what LExpr.eval does (modulo the "inline" flag). +/-- Evaluate a built-in function when a body expression is available in the +`Factory` argument `F`. This is consistent with what `LExpr.eval` does (modulo +the `inline` flag). Note that it might also be possible to evaluate with +`eval_fn`. A key correctnes property is that doing so will yield the same +result. -/ | expand_fn: ∀ (e callee fnbody new_body:LExpr Tbase.mono) args fn, F.callOfLFunc e = .some (callee,args,fn) → @@ -115,9 +127,10 @@ inductive Step (F:@Factory Tbase) (rf:Env Tbase) new_body = LExpr.substFvars fnbody (fn.inputs.keys.zip args) → Step F rf e new_body --- The second way of evaluating a function call. --- If LFunc has a concrete evaluator, this can be used to 'jump' to the final --- result of the function. +/-- Evaluate a built-in function when a concrete evaluation function is +available in the `Factory` argument `F`. Note that it might also be possible to +evaluate with `expand_fn`. A key correctnes property is that doing so will yield +the same result. -/ | eval_fn: ∀ (e callee e':LExpr Tbase.mono) args fn denotefn, F.callOfLFunc e = .some (callee,args,fn) → diff --git a/Tools/Python/test_results/dialects/Python.dialect.st.ion b/Tools/Python/test_results/dialects/Python.dialect.st.ion index 17a74a97763d2b0d4e460f59f2ada2795fdb8f9c..7f0f7d79818cdf8f843752a9f0ffa3c93240cb5c 100644 GIT binary patch delta 2080 zcma)7TWs586jpDe>m_NLc3G3K(ZUwBU8fbPbR7cGW?36ZyRx*XMMaaBnAFsWzfNaOk!WwnQ7>l2I>IIG6{*1cChu$5&EGP?LmVy_CS_M9NU@JvSp8z>RIh- z+2K+>qy1d={64GSlo$hp^Ju+1MbFLfVie?z<}Z(-<(2Y%U1n_(AE!^#vkB2meb%}U zmn!VlFJOw9I3r0=yJ4hif0g%@sM>QC?SO2>K|rm-?^Xq`o<-}$aFQWVpI0yW)F@Ef z+_ect>$|Q4Qjc5$EUWYZwpX?Sj#j<|xKa5c;DgE_;K1%ksZ-TH*gXTnfvU5B?^L}2 z_-EAsV0ZN>V7B^Yz~8HT09$GhCu&{;yj8;iK2_TV$kt+*3$>$2ch?Y{HjMdd1dp?fa<3#4BOF%t3f@r06lA17S!+IZW?V8E)SiZpWF3rTYxreyKa^ zLAUFu%k|Z3p(%TOR^s>U&F^+Ld}w2QvMEOj(#j zT1@aPMHrq_a^LHUyf{s%V9!^A{|w7>qYYV z7yAbK$U{^dQn;vRQJ5=|}kF$5FJ+k-g9@05+?o2{Wc!ScL#+>C892Dxck zga|&Xh#}q(%pyjO`g~SNqeg)~s}BJ|6;iEMzrhRTR!bKGj#i5>L;?jx|29Scc0~{t zMV>4u8A;^Hf?Pob3RC~?FD8@m}MgHusi+%v&?v` delta 1967 zcmZ`(T}&KR6wX4a{4V?J!m_oc7zh-IT1#m)M*a$07rMBmp~j>ccBjjf-I<-4yZo3M zv<%Slx1`tTgQjR36XT1ZF|la3k~aEcqAw;|*oi)=Pud3`Oic8gJF`&S`ts$TzwexT z?zv~-nQxCT_t@ux6J%Htn+1`~D7>1Ct(|?-lGmcs`xbBay?MD*n*!6~s{YQrY}ID` zA_+=r>WfY7_0jpSWZRu`*-mB0j{pP-ej)z>5X7 zfHw*{Dyi(tp!0MnDG=zbPq%!A@;u$xy9z#Qd%px!9(fPYRagi3Y+*g%`NA`Rw+j0K z%ZvPgXN$sl4ocHSV<5B?Uj+Q5_yxd!ihBTiN(KP0mAnM_SIIHJ!=;Gv(hGn;l!}1e zWk&#CEyFbLmkl7@-%NPiiaGnN)y-7)Zee{|kW*CJrE7ef6OtzE2LY)aUt^u&&vxwS zVMhS)HAkDpL7SXajY#w>5-q|{;+2FHspZrYBvt$z0Dh^qdV5PEq(sD!r1EEH~ss4AJ_yI28BxmUc;q{C^>gUc>iFrLXJM z;dUO#CHxo(r%xvnF<`t-?QU23f1KzM_bFI59%Hxy5*MLzgZVSy+2Ch1z}K~EQ=NPa z&gSoLOGZssbMinDGTn{fAg6Hg?cg>MXlvn@TeVB46gV23Z4ppcZ%(oV&{GhMI(m~a z0)m;Xmm{XaEJYZ_Fc#G-F$#7LN@ExV3j|hgAT%tTXC#LFVpcYPjzF*w<~<4S?E)E; zvI;|HMOT{_JQ0&5rIRH#6ZpkZUV#L4Mj?F?o{jPc*u}B}yI7rZ`7W8t^+p8{z@&Tg zFJoH*5MFOk1xOd1jezbQb@u~mKkNXL$FH)~roUg@Hh>x=I_BYVq3E7L_zOoXHe6KR zr+?3S6dySUJ2#cSo1tZuxFq^3aV0D;{JIkVqRWfx>w*_o(^YRH;BD`dfcL$F6;y82 z|3IQSc%krcM+{a|D!rMZLshu#ZdKv(`laeQz*^s-R&@WAxu2d$@cyU> %%% authors := ["Joe Hendrix"] -shortTitle := "Strata" +shortTitle := "Strata DDM" %%% The Strata Dialect Definition Mechanism (DDM) is a set of tools for defining diff --git a/docs/ddm/StrataDocMain.lean b/docs/verso/DDMDocMain.lean similarity index 76% rename from docs/ddm/StrataDocMain.lean rename to docs/verso/DDMDocMain.lean index 5d5786f7bb..2c2ed861fb 100644 --- a/docs/ddm/StrataDocMain.lean +++ b/docs/verso/DDMDocMain.lean @@ -6,7 +6,7 @@ -import StrataDoc +import DDMDoc open Verso.Genre.Manual (Config manualMain) def config : Config where @@ -15,4 +15,4 @@ def config : Config where emitHtmlMulti := false htmlDepth := 2 -def main := manualMain (%doc StrataDoc) (config := config) +def main := manualMain (%doc DDMDoc) (config := config) diff --git a/docs/verso/LangDefDoc.lean b/docs/verso/LangDefDoc.lean new file mode 100644 index 0000000000..ceadf0b66a --- /dev/null +++ b/docs/verso/LangDefDoc.lean @@ -0,0 +1,327 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import VersoManual + +import Strata.DL.Imperative.Cmd +import Strata.DL.Imperative.CmdSemantics +import Strata.DL.Imperative.Stmt +import Strata.DL.Imperative.StmtSemanticsSmallStep +import Strata.DL.Imperative.NondetStmt +import Strata.DL.Imperative.NondetStmtSemantics +import Strata.DL.Imperative.MetaData +import Strata.DL.Lambda.LExpr +import Strata.DL.Lambda.Semantics +import Strata.DL.Lambda.LExprTypeSpec + +open Lambda +open Imperative + +-- This gets access to most of the manual genre +open Verso.Genre Manual + +-- This gets access to Lean code that's in code blocks, elaborated in +-- the same process and environment as Verso +open Verso.Genre.Manual.InlineLean + +set_option pp.rawOnError true +set_option verso.docstring.allowMissing false + +#doc (Manual) "The Strata Language Definition" => +%%% +shortTitle := "The Strata Language" +%%% + +# Introduction + +Strata aims to provide a foundation for representing the semantics of programs, +specifications, protocols, architectures, and other aspects of large-scale +distributed systems and their components. It achieves this through languages of +two types. The first type, consisting of the single Strata Core language, +provides a central hub that can serve as a connection point between multiple +types of input artifact and multiple types of analysis, reducing the cost of +implementing N analyses for M languages from N\*M to N+M. + +The second type consists of numerous Strata _dialects_. The Dialect Definition +Mechanism, described +[here](https://github.com/strata-org/Strata/tree/main/docs/verso/DDMDoc.lean), +provides a way to define the syntax and a simple type system for a dialect. At +the moment, dialects do not directly have semantics (though we may add a +mechanism for defining their semantics in the future) but instead are defined by +translation to or from Strata Core. Said another way, each of these dialects is +a different concrete way to write Strata programs, but all of these dialects are +ultimately represented internally using the same Core language. + +Dialects are used to describe both the initial artifacts being analyzed by +Strata and more low-level representations of those artifacts used to communicate +with external reasoning tools such as model checkers or SMT solvers. In both +situations, Strata uses dialects as a mechanism for communicating with external +tools (either language front ends or generic automated reasoning tools like SMT +solvers). + +The following "hourglass" diagram illustrates how various existing (blue) or +potential (gray) input dialects could be translated into Strata Core and then +into the input language for various back end tools. Solid lines indicate +translation paths that exist (though experimentally in the connection between +Strata Core and CBMC), and dotted lines indicate translations that illustrate +the sorts of use cases we expect Strata to support but that haven't yet been +implemented. + +![Strata hourglass diagram](strata-hourglass.png) + +The Strata Core language is constructed using a few building blocks that can be +combined in different ways. This allows concrete dialects to systematically use +different combinations that still share the majority of their implementation. In +Lean (and in principle in most other source languages that could be used to +process Strata programs), the type system can enforce various structural +constraints, ensuring that only expected language constructs show up. The Strata +Core language itself consists of an imperative statement type parameterized by +an expression type, with various more fine-grained adjustments of other +parameters. + +The two fundamental building blocks of Strata Core are a representation of +functional programs (`Lambda`), and a representation of imperative programs +(`Imperative`). The `Lambda` language is parameterized by a type system and a +set of built-in types and functions. The `Imperative` language is then +parameterized by the type of expressions it allows in conditions, assignments, +and so on. Currently, those expressions will almost always be some +instantiation of `Lambda`. Both Core building blocks are parameterized by a +metadata type, which by default is instantiated with a map from keys to +structured values that can contain expressions (typically from `Lambda`). + +The remainder of this document describes the current abstract syntax and +semantics of `Lambda` and `Imperative` in detail, with direct reference to the +Lean source code that defines these languages. We do not consider the Core +language set in stone. It may evolve over time, particularly to add new +fundamental constructs, and this document will be updated as it does. We intend +for Strata Core to be close to a superset of [B3](https://b3-lang.org/), but it +may at times make different choices to support its goal of being useful for a +wide range of analyses, rather than being optimized for deductive verification. +In particular, Strata aims to make it possible to encode most input artifacts +without the need for axioms. + +# Lambda + +The `Lambda` language is a standard but generic implementation of the lambda +calculus. It is parameterized by a type for metadata and the type of types +(which may be `Unit`, to describe the untyped lambda calculus). It includes the +standard constructs for constants, free and bound variables, abstractions, and +applications. In addition, it includes a special type of constant, an operator, +to represent built-in functions. It extends the standard lambda calculus by +allowing quantifiers (since a key use of the language is to write logical +predicates) and includes a constructor for if-then-else to allow it to have lazy +semantics. + +Although `Lambda` can be parameterized by an arbitrary type system, the Strata +code base includes a +[formalization](https://github.com/strata-org/Strata/blob/main/Strata/DL/Lambda/LExprTypeSpec.lean) +of a polymorphic Hindley-Milner type system and an +[implementation](https://github.com/strata-org/Strata/blob/main/Strata/DL/Lambda/LTyUnify.lean) +of an inference algorithm over the type `LTy` (described below). This allows +universal quantification over types and the use of arbitrary named type +constructors (as well as special support for bit vector types, to allow them to +be parameterized by size). + +## Syntax + +The syntax of lambda expressions is provided by the {name LExpr}`LExpr` type. + +{docstring Lambda.LExpr} + +Identifiers in lambda expressions, using the {name Identifier}`Identifier` type, +can be annotated with metadata. + +{docstring Lambda.Identifier} + +Specific constructors exist for constants of various scalar types, including +booleans, bit vectors, integers, reals, and strings. + +{docstring Lambda.LConst} + +The {name LExpr}`LExpr` type can be parameterized by the type used to represent +normal metadata and the type used to represent identifier metadata, as well as +the type of types. + +{docstring Lambda.LExprParams} + +{docstring Lambda.LExprParamsT} + +## Type System + +Although {name LExpr}`LExpr` can be parameterized by an arbitrary type system, +Strata currently implements one, based on the types {name LMonoTy}`LMonoTy` and +{name LTy}`LTy`. + +The first, {name LMonoTy}`LMonoTy`, represents monomorphic types. It's a +separate type because some contexts allow only monomorphic types. + +{docstring Lambda.LMonoTy} + +Type variables in {name LMonoTy}`LMonoTy` use the {name TyIdentifier}`TyIdentifier` type. + +{docstring Lambda.TyIdentifier} + +The {name LTy}`LTy` type allows monomorphic types to be wrapped in universal type +quantifiers that bind these type variables, creating polymorphic types. + +{docstring Lambda.LTy} + +An expression {name LExpr}`LExpr` parameterized by {name LTy}`LTy` is +well-typed according to the {name LExpr.HasType}`HasType` relation. +This relation depends on two types of context. + +The first of these, {name LContext}`LContext`, contains information that does +not change throughout the type checking process. This includes information about +built-in functions, using the {name Factory}`Factory` type, and built-in types, +using the {name TypeFactory}`TypeFactory` type. Built-in functions optionally +include concrete evaluation functions, which can be used in the operational +semantics described below. + +{docstring Lambda.LContext} + +The second context includes two pieces of data that change throughout the type +checking process: a map from free variables in expressions to types, and a list +of type aliases including the name and definition of each alias. + +{docstring Lambda.TContext} + +Given these two pieces of context, the {name LExpr.HasType}`HasType` relation +describes the valid type of each expression form. + +{docstring Lambda.LExpr.HasType} + +## Operational Semantics + +The semantics of the {name LExpr}`LExpr` type are specified in a standard way +using the small-step inductive relation {name Lambda.Step}`Lambda.Step`. +This relation is parameterized by a `Factory`, which describes built-in +functions via an optional body and/or evaluation function. + +{docstring Lambda.Step} + +Typically we will want to talk about arbitrarily long sequences of steps, such +as from an initial expression to a value. The +{name Lambda.StepStar}`Lambda.StepStar` relation describes the reflexive, +transitive closure of the {name Lambda.Step}`Lambda.Step` relation. + +{docstring Lambda.StepStar} + +# Imperative + +The `Imperative` language is a standard core imperative calculus, parameterized +by a type of expressions and divided into two pieces: commands and statements. +Commands represent atomic operations that do not induce control flow (except +possibly in the form of procedure calls that follow a stack discipline, though +the current core set of commands does not include calls). Statements are +parameterized by a command type and describe the control flow surrounding those +commands. Currently, `Imperative` has structured, deterministic statements, each +of which can be: a command, a sequence of statements in a block, a deterministic +conditional, a deterministic loop with a condition, or a forward `goto` +statement. (Note: we plan to replace `goto` with a block exit statement, and +have a separate unstructured CFG representation.) + +We plan to add non-deterministic statements, as in [Kleene Algebra with +Tests](https://www.cs.cornell.edu/~kozen/Papers/kat.pdf), and support a +translation from structured deterministic statements into structured +non-deterministic statements. + +We also expect to add unstructured control-flow graphs where each basic block +consists of a sequence of commands followed by a terminator command. A +terminator command can be: a conditional jump to one of two blocks, termination +of execution, or a non-deterministic jump to any one of an arbitrary number of +successor blocks. + +## Command Syntax + +The core built-in set of commands includes variable initializations, +deterministic assignments, non-deterministic assignments ("havoc"), assertions, +and assumptions. + +{docstring Imperative.Cmd} + +## Command Operational Semantics + +The semantics of commands are specified in terms of how they interact with a +program state, written `σ`. A state can be applied to a variable to obtain its +current value. And an expression `e` can be evaluated using the evaluation +function in a given state: `δ σ e` gives the result of evaluating `e` in state +`σ`. This generic description allows the details of the program state +representation to vary, as long as it supports these operations. + +Given a state `σ`, the {name InitState}`InitState` relation describes how a +variable obtains its initial value. + +{docstring Imperative.InitState} + +The {name UpdateState}`UpdateState` relation then describes how a variable's +value can change. + +{docstring Imperative.UpdateState} + +Given these two state relations, the semantics of each command is specified in +a standard way. + +{docstring Imperative.EvalCmd} + +## Structured Deterministic Statement Syntax + +Statements allow commands to be organized into standard control flow +arrangements, including sequencing, alternation, and iteration. Sequencing +statements occurs by grouping them into blocks. Loops can be annotated with +optional invariants and decreasing measures, which can be used for deductive +verification. + +{docstring Imperative.Stmt} + +{docstring Imperative.Block} + +## Structured Deterministic Statement Operational Semantics + +The semantics of the {name Stmt}`Stmt` type is defined in terms of +*configurations*, represented by the {name Imperative.Config}`Config` type. A +configuration pairs the statement(s) remaining to be executed with a state, and +each step of execution goes from an initial configuration to a final configuration. + +{docstring Imperative.Config} + +The {name StepStmt}`StepStmt` type describes how each type of statement +transforms configurations. Like with the other components of Strata, the rules +follow standard conventions. + +{docstring Imperative.StepStmt} + +Like with `Lambda`, we typically want to talk about arbitrarily long sequences +of steps. The {name StepStmtStar}`Imperative.StepStmtStar` relation describes +the reflexive, transitive closure of the {name StepStmt}`Imperative.StepStmt` +relation. + +{docstring Imperative.StepStmtStar} + +# Metadata + +Metadata allows additional information to be attached to nodes in the Strata +AST. This may include information such as the provenance of specific AST nodes +(_e.g._, the locations in source code that gave rise to them), facts inferred by +specific analyses, or indications of the goal of a specific analysis, among many +other possibilities. + +Each metadata element maps a field to a value. A field can be named with a +variable or an arbitrary string. + +{docstring Imperative.MetaDataElem.Field} + +A value can take the form of an expression or an arbitrary string. + +{docstring Imperative.MetaDataElem.Value} + +A metadata element pairs a field with a value. + +{docstring Imperative.MetaDataElem} + +And, finally, the metadata attached to an AST node consists of an array of +metadata elements. + +{docstring Imperative.MetaData} diff --git a/docs/verso/LangDefDocMain.lean b/docs/verso/LangDefDocMain.lean new file mode 100644 index 0000000000..9423ab6d12 --- /dev/null +++ b/docs/verso/LangDefDocMain.lean @@ -0,0 +1,18 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + + + +import LangDefDoc +open Verso.Genre.Manual (Config manualMain) + +def config : Config where + emitTeX := false + emitHtmlSingle := true + emitHtmlMulti := false + htmlDepth := 2 + +def main := manualMain (%doc LangDefDoc) (config := config) diff --git a/docs/verso/README.md b/docs/verso/README.md new file mode 100644 index 0000000000..05c34a620a --- /dev/null +++ b/docs/verso/README.md @@ -0,0 +1,37 @@ +# Strata documents created in Verso + +This Verso package provides documentation of the core Strata language +and the Dialect Definition Mechanism (DDM). The documentation can be +generated by the command + +``` +./generate.sh +``` + +The output will be written to `_out/{document name}`. Links in Verso +documentation do not work if the file is opened in the browser directly. +Instead, we recommend launching a local web server to view the +documentation. If Python is available, then this can be done with the +command + +``` +python3 -m http.server 1080 -d _out/langdef/html-single +``` + +or + +``` +python3 -m http.server 1080 -d _out/ddm/html-single +``` + +This will print out a URL that can be opened in a browser to view the documentation. + +# Strata Language Definition + +TODO + +# DDM User Manual + +New Strata dialects are defined in their own domain-specific language +that can be embededed in Lean or imported from external files. This +document provides a guide to using that DSL. diff --git a/docs/verso/generate.sh b/docs/verso/generate.sh new file mode 100755 index 0000000000..92a4ba4d99 --- /dev/null +++ b/docs/verso/generate.sh @@ -0,0 +1,5 @@ +set -ex + +lake exe ddm --with-html-single --output _out/ddm +lake exe langdef --with-html-single --output _out/langdef +cp strata-hourglass.png _out/langdef/html-single/ diff --git a/docs/ddm/lake-manifest.json b/docs/verso/lake-manifest.json similarity index 54% rename from docs/ddm/lake-manifest.json rename to docs/verso/lake-manifest.json index edaee8c6e2..aac17d2002 100644 --- a/docs/ddm/lake-manifest.json +++ b/docs/verso/lake-manifest.json @@ -5,17 +5,34 @@ "type": "git", "subDir": null, "scope": "", - "rev": "590eac5d96f04c5a75214b3b501afe389c333720", + "rev": "8ba8c1ee844cd4a4ef1957801780c6e99e469897", "name": "verso", "manifestFile": "lake-manifest.json", - "inputRev": "nightly-testing", + "inputRev": "v4.25.1", "inherited": false, "configFile": "lakefile.lean"}, + {"type": "path", + "scope": "", + "name": "Strata", + "manifestFile": "lake-manifest.json", + "inherited": false, + "dir": "../..", + "configFile": "lakefile.toml"}, + {"url": "https://github.com/leanprover-community/plausible", + "type": "git", + "subDir": null, + "scope": "", + "rev": "8864a73bf79aad549e34eff972c606343935106d", + "name": "plausible", + "manifestFile": "lake-manifest.json", + "inputRev": "main", + "inherited": true, + "configFile": "lakefile.toml"}, {"url": "https://github.com/acmepjz/md4lean", "type": "git", "subDir": null, "scope": "", - "rev": "aaee7fa4a1a158bd814d76f642df8a1d19db9f49", + "rev": "66aefec2852d3e229517694e642659f316576591", "name": "MD4Lean", "manifestFile": "lake-manifest.json", "inputRev": "main", @@ -25,7 +42,7 @@ "type": "git", "subDir": null, "scope": "", - "rev": "dd7c477cb8b1898c3ace7bf66a47462eef7ac52c", + "rev": "7347ddaca36e59238bf1fc210a6bf71dd0bccdd6", "name": "subverso", "manifestFile": "lake-manifest.json", "inputRev": "main", diff --git a/docs/verso/lakefile.toml b/docs/verso/lakefile.toml new file mode 100644 index 0000000000..11162158de --- /dev/null +++ b/docs/verso/lakefile.toml @@ -0,0 +1,25 @@ +name = "StrataDoc" +defaultTargets = ["ddm", "langdef"] + +[[require]] +name = "Strata" +path = "../.." + +[[require]] +name = "verso" +git = "https://github.com/leanprover/verso" +rev = "v4.25.1" + +[[lean_lib]] +name = "DDMDoc" + +[[lean_lib]] +name = "LangDefDoc" + +[[lean_exe]] +name = "ddm" +root = "DDMDocMain" + +[[lean_exe]] +name = "langdef" +root = "LangDefDocMain" diff --git a/docs/verso/lean-toolchain b/docs/verso/lean-toolchain new file mode 100644 index 0000000000..370b26d9c7 --- /dev/null +++ b/docs/verso/lean-toolchain @@ -0,0 +1 @@ +leanprover/lean4:v4.25.2 diff --git a/docs/verso/strata-hourglass.png b/docs/verso/strata-hourglass.png new file mode 100644 index 0000000000000000000000000000000000000000..44d7261ac1afcaf354f0e7bf2ad4cd6af6bf0005 GIT binary patch literal 58222 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z7RPN`i0GU;3`^5=Tz}@9+3eh#a>E3ZcsPuQepeXGfXYTiav`25xxRkf*f{TALD_ES zF($IIokjam=qGM6NYm1*W8#wseBR|~3DNL>+nU6C5VJ1a+Hgx;(^+flVN+ifH#l+0 zzDAAnj(0(D`|i-Ol6^{E9@0NW&q^}x3>@H5;AEgD`BS?BJdy+*?Q=Ca`JdvEAZ7d& z!KU_t?=Jx!(pGZ*^)N)mYpR&=KSizqcYsMmZFv7#PLyiT4Db4U3v$5p*H-iq?NnL= zl+N^AiGP+8rG7KM$~qD#ee$PQV&BAeV~^WuiaHtoRv@t@Hr875P5-ZE;pC)zJd&U+ z6@U5vC@kv09dMaxC$WDu8w0l^o`Fm{=9=bz6hZ-71E(oQ%75lUoDo%gcvq+$#mLg% w$BhZUMG_lqYqTZwpV34xyvm~c{~K<*emM6@VMUjx=@sIGP}ftdQMHTwA3jS%3IG5A literal 0 HcmV?d00001 From dca53ec5ae3083c4bc90cff03c2ffec1561a4716 Mon Sep 17 00:00:00 2001 From: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Date: Thu, 18 Dec 2025 16:52:42 -0600 Subject: [PATCH 61/68] Z3 -T param takes seconds (#286) Z3 `-T` param takes seconds By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. Co-authored-by: Shilpi Goel --- Strata/Languages/Boogie/Verifier.lean | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Strata/Languages/Boogie/Verifier.lean b/Strata/Languages/Boogie/Verifier.lean index 722b901c94..b73a10d5b9 100644 --- a/Strata/Languages/Boogie/Verifier.lean +++ b/Strata/Languages/Boogie/Verifier.lean @@ -199,7 +199,7 @@ def getSolverFlags (options : Options) (solver : String) : Array String := let setTimeout := match solver with | "cvc5" => #[s!"--tlimit={options.solverTimeout*1000}"] - | "z3" => #[s!"-T:{options.solverTimeout*1000}"] + | "z3" => #[s!"-T:{options.solverTimeout}"] | _ => #[] produceModels ++ setTimeout From c32a3d551346f1c388cec9afef448de22f17c877 Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Fri, 19 Dec 2025 11:03:28 +0100 Subject: [PATCH 62/68] Move file --- .../Examples/Fundamentals/1.AssertFalse.lr.st | 17 ----------------- .../Examples/Fundamentals/1. AssertFalse.lr.st | 12 +++++++----- StrataTest/Languages/Laurel/TestExamples.lean | 2 +- 3 files changed, 8 insertions(+), 23 deletions(-) delete mode 100644 Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st diff --git a/Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st b/Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st deleted file mode 100644 index ebf246aba9..0000000000 --- a/Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st +++ /dev/null @@ -1,17 +0,0 @@ -/* - Copyright Strata Contributors - - SPDX-License-Identifier: Apache-2.0 OR MIT -*/ -procedure foo() { - assert true; - assert false; -// ^^^^^^^^^^^^^ error: assertion does not hold - assert false; -// ^^^^^^^^^^^^^ error: assertion does not hold -} - -procedure bar() { - assume false; - assert true; -} \ No newline at end of file diff --git a/StrataTest/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st b/StrataTest/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st index e09e7daefe..ebf246aba9 100644 --- a/StrataTest/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st +++ b/StrataTest/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st @@ -4,12 +4,14 @@ SPDX-License-Identifier: Apache-2.0 OR MIT */ procedure foo() { - assert true; // pass - assert false; // error - assert false; // TODO: decide if this has an error + assert true; + assert false; +// ^^^^^^^^^^^^^ error: assertion does not hold + assert false; +// ^^^^^^^^^^^^^ error: assertion does not hold } procedure bar() { - assume false; // pass - assert true; // pass + assume false; + assert true; } \ No newline at end of file diff --git a/StrataTest/Languages/Laurel/TestExamples.lean b/StrataTest/Languages/Laurel/TestExamples.lean index 268da409b4..ada029a9bd 100644 --- a/StrataTest/Languages/Laurel/TestExamples.lean +++ b/StrataTest/Languages/Laurel/TestExamples.lean @@ -34,7 +34,7 @@ def processLaurelFile (filePath : String) : IO (Array Diagnostic) := do pure diagnostics def testAssertFalse : IO Unit := do - testFile processLaurelFile "Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st" + testFile processLaurelFile "StrataTest/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st" #eval! testAssertFalse From d803b56665230860668e1576c9a92dc13332211d Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Fri, 19 Dec 2025 12:03:04 +0100 Subject: [PATCH 63/68] Fixes --- Strata/DL/Imperative/MetaData.lean | 1 + 1 file changed, 1 insertion(+) diff --git a/Strata/DL/Imperative/MetaData.lean b/Strata/DL/Imperative/MetaData.lean index cf6355c48a..f1f6726eae 100644 --- a/Strata/DL/Imperative/MetaData.lean +++ b/Strata/DL/Imperative/MetaData.lean @@ -87,6 +87,7 @@ inductive MetaDataElem.Value (P : PureExpr) where | expr (e : P.Expr) /-- Metadata value in the form of an arbitrary string. -/ | msg (s : String) + /-- Metadata value in the form of a fileRange. -/ | fileRange (r: FileRange) From b0de596645abf04b5b93fe9e195e21db31fb37e6 Mon Sep 17 00:00:00 2001 From: Joe Hendrix Date: Fri, 19 Dec 2025 08:18:43 -0800 Subject: [PATCH 64/68] Extend PythonToBoogie to use signatures database (#279) This modifies PythonToBoogie translation to accept a signature data structure for types of builtin functions. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Shilpi Goel --- .../Languages/Python/FunctionSignatures.lean | 201 ++++++++++++------ Strata/Languages/Python/PythonToBoogie.lean | 30 +-- StrataMain.lean | 4 +- .../Internal/InternalFunctionSignatures.lean | 10 +- 4 files changed, 149 insertions(+), 96 deletions(-) diff --git a/Strata/Languages/Python/FunctionSignatures.lean b/Strata/Languages/Python/FunctionSignatures.lean index f459d8b3f1..2f0c7809b3 100644 --- a/Strata/Languages/Python/FunctionSignatures.lean +++ b/Strata/Languages/Python/FunctionSignatures.lean @@ -9,78 +9,139 @@ import Strata.Languages.Boogie.Boogie namespace Strata namespace Python --- We should extract the function signatures from the prelude: -def getFuncSigOrder (fname: String) : List String := - match fname with - | "test_helper_procedure" => ["req_name", "opt_name"] - | "print" => ["msg", "opt"] - | "json_dumps" => ["msg", "opt_indent"] - | "json_loads" => ["msg"] - | "input" => ["msg"] - | "random_choice" => ["l"] - | "datetime_now" => [] - | "datetime_utcnow" => [] - | "datetime_date" => ["dt"] - | "timedelta" => ["days", "hours"] - | "datetime_strptime" => ["time", "format"] - | "str_to_float" => ["s"] - | _ => panic! s!"Missing function signature : {fname}" +/-- A type identifier in the Python Boogie prelude. -/ +abbrev TypeId := String + +/-- An argument declaration for a Python method -/ +structure ArgDecl where + name : String + type : TypeId +deriving Inhabited + +/-- A function signature with argument information. -/ +structure FuncDecl where + /-- Array of arguments. -/ + args : Array ArgDecl + /-- + Number of position-only arguments. + + Position only arguments occur before other arguments. + -/ + posOnlyCount : Nat := 0 + /-- + First index for keyword only arguments. + + Keyword only arguments appear after other arguments in args. + -/ + keywordOnly : Nat := args.size + /-- + Position only arguments are before start of keyword only. + -/ + posOnlyBound : posOnlyCount <= keywordOnly := by omega + /-- + Keyword only arguments (if any) come at end + -/ + keywordBound : keywordOnly <= args.size := by omega + /-- Map from argument names to their index in args. -/ + argIndexMap : Std.HashMap String (Fin args.size) + +instance : Inhabited FuncDecl where + default := { args := #[], argIndexMap := {} } + +/-- The name of a Python method as encoded in the Boogie dialect-/ +abbrev FuncName := String + +/-- A collection of function signatures. -/ +class Signatures where + functions : Std.HashMap FuncName FuncDecl := {} +deriving Inhabited + +namespace Signatures + +def getFuncSigOrder (db : Signatures) (fname: FuncName) : List String := + match db.functions[fname]? with + | some decl => decl.args |>.map (·.name) |>.toList + | none => panic! s!"Missing function signature : {fname}" -- We should extract the function signatures from the prelude: -def getFuncSigType (fname: String) (arg: String) : String := - match fname with - | "test_helper_procedure" => - match arg with - | "req_name" => "string" - | "opt_name" => "StrOrNone" - | _ => panic! s!"Unrecognized arg : {arg}" - | "print" => - match arg with - | "msg" => "string" - | "opt" => "StrOrNone" - | _ => panic! s!"Unrecognized arg : {arg}" - | "json_dumps" => - match arg with - | "msg" => "DictStrAny" - | "opt_indent" => "IntOrNone" - | _ => panic! s!"Unrecognized arg : {arg}" - | "json_loads" => - match arg with - | "msg" => "string" - | _ => panic! s!"Unrecognized arg : {arg}" - | "input" => - match arg with - | "msg" => "string" - | _ => panic! s!"Unrecognized arg : {arg}" - | "random_choice" => - match arg with - | "l" => "ListStr" - | _ => panic! s!"Unrecognized arg : {arg}" - | "datetime_now" => - match arg with - | _ => panic! s!"Unrecognized arg : {arg}" - | "datetime_utcnow" => - match arg with - | _ => panic! s!"Unrecognized arg : {arg}" - | "datetime_date" => - match arg with - | "dt" => "Datetime" - | _ => panic! s!"Unrecognized arg : {arg}" - | "timedelta" => - match arg with - | "days" => "IntOrNone" - | "hours" => "IntOrNone" - | _ => panic! s!"Unrecognized arg : {arg}" - | "datetime_strptime" => - match arg with - | "time" => "string" - | "format" => "string" - | _ => panic! s!"Unrecognized arg : {arg}" - | "str_to_float" => - match arg with - | "s" => "string" - | _ => panic! s!"Unrecognized arg : {arg}" - | _ => panic! s!"Missing function signature : {fname}" +def getFuncSigType (db : Signatures) (fname: FuncName) (arg: String) : String := + match db.functions[fname]? with + | none => panic! s!"Missing function signature : {fname}" + | some decl => + match decl.argIndexMap[arg]? with + | none => panic! s!"Unrecognized arg : {arg}" + | some idx => decl.args[idx].type + +end Signatures + +/-- +Monad for extending a signatures collection. +-/ +def SignatureM := StateM Signatures +deriving Monad, MonadState Signatures + +namespace SignatureM + +def run (m : SignatureM Unit) (init : Signatures := {}) : Signatures := m init |>.snd + +def decl (name : FuncName) (args : List ArgDecl) + (posOnlyCount : Nat := 0) + (keywordOnly := args.length) : SignatureM Unit := do + assert! name ∉ (←get).functions + assert! posOnlyCount <= keywordOnly + let args := args.toArray + assert! keywordOnly <= args.size + + let argIndexMap : Std.HashMap String (Fin args.size) := + Fin.foldl args.size (init := {}) fun m i => + let a := args[i] + assert! a.name ∉ m + m.insert a.name i + + let .isTrue posOnlyBound := inferInstanceAs (Decidable (posOnlyCount <= keywordOnly)) + | return panic! "Invalid number of position-only parameters." + let .isTrue keywordBound := inferInstanceAs (Decidable (keywordOnly <= args.size)) + | return panic! "Invalid start for keyword only parameters." + + let decl : FuncDecl := { + args, + posOnlyCount, + keywordOnly, + posOnlyBound, + keywordBound, + argIndexMap, + } + modify fun m => { m with functions := m.functions.insert name decl } + +private def identToStr (t : Lean.TSyntax `ident) : Lean.StrLit := + match t.raw.isIdOrAtom? with + | none => panic! "Unexpected string" + | some s => Lean.Syntax.mkStrLit s + +scoped macro v:ident ":<" t:ident : term => `(ArgDecl.mk $(identToStr v) $(identToStr t)) + +end SignatureM + +section +open SignatureM + +def addCoreDecls : SignatureM Unit := do + decl "test_helper_procedure" [req_name :< string, opt_name :< StrOrNone] + decl "print" [msg :< string, opt :< StrOrNone] + decl "json_dumps" [msg :< DictStrAny, opt_indent :< IntOrNone] + decl "json_loads" [msg :< string] + decl "input" [msg :< string] + decl "random_choice" [l :< ListStr] + decl "datetime_now" [] + decl "datetime_utcnow" [] + decl "datetime_date" [dt :< Datetime] + decl "timedelta" [ days :< IntOrNone, hours :< IntOrNone] + decl "datetime_strptime" [time :< string, format :< string] + decl "str_to_float" [s :< string] + +def coreSignatures : Signatures := addCoreDecls |>.run + +end def TypeStrToBoogieExpr (ty: String) : Boogie.Expression.Expr := if !ty.endsWith "OrNone" then diff --git a/Strata/Languages/Python/PythonToBoogie.lean b/Strata/Languages/Python/PythonToBoogie.lean index 685fe7fe26..e1bc2cf2bc 100644 --- a/Strata/Languages/Python/PythonToBoogie.lean +++ b/Strata/Languages/Python/PythonToBoogie.lean @@ -14,7 +14,7 @@ import Strata.Languages.Python.PythonDialect import Strata.Languages.Python.FunctionSignatures import Strata.Languages.Python.Regex.ReToBoogie import Strata.Languages.Python.PyFactory -import StrataTest.Internal.InternalFunctionSignatures +import Strata.Languages.Python.FunctionSignatures namespace Strata open Lambda.LTy.Syntax @@ -52,7 +52,6 @@ structure PyExprTranslated where post_stmts : List Boogie.Statement := [] deriving Inhabited - structure PythonFunctionDecl where name : String args : List (String × String) -- Elements are (arg_name, arg_ty) where `arg_ty` is the string representation of the type in Python @@ -64,10 +63,11 @@ structure PythonClassDecl where deriving Repr, BEq, Inhabited structure TranslationContext where - expectedType : Option (Lambda.LMonoTy) - variableTypes : List (String × Lambda.LMonoTy) - func_infos : List PythonFunctionDecl - class_infos : List PythonClassDecl + signatures : Python.Signatures + expectedType : Option (Lambda.LMonoTy) := none + variableTypes : List (String × Lambda.LMonoTy) := [] + func_infos : List PythonFunctionDecl := [] + class_infos : List PythonClassDecl := [] deriving Inhabited ------------------------------------------------------------------------------- @@ -243,9 +243,8 @@ def callCanThrow (func_infos : List PythonFunctionDecl) (stmt: Python.stmt Sourc | _ => false | _ => false -open Strata.Python.Internal in -def noneOrExpr (fname n : String) (e: Boogie.Expression.Expr) : Boogie.Expression.Expr := - let type_str := getFuncSigType fname n +def noneOrExpr (translation_ctx : TranslationContext) (fname n : String) (e: Boogie.Expression.Expr) : Boogie.Expression.Expr := + let type_str := translation_ctx.signatures.getFuncSigType fname n if type_str.endsWith "OrNone" then -- Optional param. Need to wrap e.g., string into StrOrNone match type_str with @@ -357,19 +356,19 @@ partial def argsAndKWordsToCanonicalList (translation_ctx : TranslationContext) else (args.toList.map (λ a => (PyExprToBoogieWithSubst default substitution_records a).expr), []) else - let required_order := Strata.Python.Internal.getFuncSigOrder fname + let required_order := translation_ctx.signatures.getFuncSigOrder fname assert! args.size <= required_order.length let remaining := required_order.drop args.size let kws_and_exprs := kwords.toList.map (PyKWordsToBoogie substitution_records) let ordered_remaining_args := remaining.map (λ n => match kws_and_exprs.find? (λ p => p.fst == n) with | .some p => - noneOrExpr fname n p.snd.expr - | .none => Strata.Python.TypeStrToBoogieExpr (Strata.Python.Internal.getFuncSigType fname n)) + noneOrExpr translation_ctx fname n p.snd.expr + | .none => Strata.Python.TypeStrToBoogieExpr (translation_ctx.signatures.getFuncSigType fname n)) let args := args.map (PyExprToBoogieWithSubst default substitution_records) let args := (List.range required_order.length).filterMap (λ n => if n < args.size then let arg_name := required_order[n]! -- Guaranteed by range. Using finRange causes breaking coercions to Nat. - some (noneOrExpr fname arg_name args[n]!.expr) + some (noneOrExpr translation_ctx fname arg_name args[n]!.expr) else none) (args ++ ordered_remaining_args, kws_and_exprs.flatMap (λ p => p.snd.stmts)) @@ -747,7 +746,7 @@ def PyClassDefToBoogie (s: Python.stmt SourceRange) (translation_ctx: Translatio .proc (pythonFuncToBoogie (c_name.val++"_"++name) args body ret default translation_ctx)), {name := c_name.val}) | _ => panic! s!"Expected function def: {repr s}" -def pythonToBoogie (pgm: Strata.Program): Boogie.Program := +def pythonToBoogie (signatures : Python.Signatures) (pgm: Strata.Program): Boogie.Program := let pyCmds := toPyCommands pgm.commands assert! pyCmds.size == 1 let insideMod := unwrapModule pyCmds[0]! @@ -776,8 +775,9 @@ def pythonToBoogie (pgm: Strata.Program): Boogie.Program := let new_acc := update acc info let (ys, acc'') := helper f update new_acc xs (y ++ ys, acc'') + let func_info : TranslationContext := { signatures } - let func_defs_and_infos := helper PyFuncDefToBoogie (fun acc info => {acc with func_infos := info :: acc.func_infos}) default func_defs.toList + let func_defs_and_infos := helper PyFuncDefToBoogie (fun acc info => {acc with func_infos := info :: acc.func_infos}) func_info func_defs.toList let func_defs := func_defs_and_infos.fst let func_infos := func_defs_and_infos.snd diff --git a/StrataMain.lean b/StrataMain.lean index 54d994a3e3..5751dea678 100644 --- a/StrataMain.lean +++ b/StrataMain.lean @@ -183,7 +183,7 @@ def pyTranslateCommand : Command where callback := fun _ v => do let pgm ← readPythonStrata v[0] let preludePgm := Strata.Python.Internal.Boogie.prelude - let bpgm := Strata.pythonToBoogie pgm + let bpgm := Strata.pythonToBoogie Strata.Python.Internal.signatures pgm let newPgm : Boogie.Program := { decls := preludePgm.decls ++ bpgm.decls } IO.print newPgm @@ -197,7 +197,7 @@ def pyAnalyzeCommand : Command where if verbose then IO.print pgm let preludePgm := Strata.Python.Internal.Boogie.prelude - let bpgm := Strata.pythonToBoogie pgm + let bpgm := Strata.pythonToBoogie Strata.Python.Internal.signatures pgm let newPgm : Boogie.Program := { decls := preludePgm.decls ++ bpgm.decls } if verbose then IO.print newPgm diff --git a/StrataTest/Internal/InternalFunctionSignatures.lean b/StrataTest/Internal/InternalFunctionSignatures.lean index 137fd70765..a286a750c3 100644 --- a/StrataTest/Internal/InternalFunctionSignatures.lean +++ b/StrataTest/Internal/InternalFunctionSignatures.lean @@ -11,15 +11,7 @@ namespace Strata namespace Python namespace Internal --- We should extract the function signatures from the prelude: -def getFuncSigOrder (fname: String) : List String := - match fname with - | _ => Strata.Python.getFuncSigOrder fname - --- We should extract the function signatures from the prelude: -def getFuncSigType (fname: String) (arg: String) : String := - match fname with - | _ => Strata.Python.getFuncSigType fname arg +protected def signatures : Signatures := Strata.Python.coreSignatures end Internal end Python From 8733c6962d51c1a123206184573c43560ae6fa95 Mon Sep 17 00:00:00 2001 From: Andrew Wells <130512013+andrewmwells-amazon@users.noreply.github.com> Date: Mon, 22 Dec 2025 10:56:33 -0600 Subject: [PATCH 65/68] PyAnalyze run multiple Z3 configs in parallel. (#288) We need different solver configurations for some of our programs, but with the right configuration the solver finishes quickly. This adds a thin wrapper around Z3 that calls Z3 with various options set, each call with a 1s timeout. Currently calls to Z3 are not raced. By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --- Strata/Languages/Python/z3_configs.txt | 2 + Strata/Languages/Python/z3_parallel.py | 124 ++++++++++++++++++ StrataMain.lean | 5 +- .../Python/expected/test_datetime.expected | 7 +- .../expected/test_function_def_calls.expected | 2 +- 5 files changed, 133 insertions(+), 7 deletions(-) create mode 100644 Strata/Languages/Python/z3_configs.txt create mode 100755 Strata/Languages/Python/z3_parallel.py diff --git a/Strata/Languages/Python/z3_configs.txt b/Strata/Languages/Python/z3_configs.txt new file mode 100644 index 0000000000..ab7b6a4298 --- /dev/null +++ b/Strata/Languages/Python/z3_configs.txt @@ -0,0 +1,2 @@ + +(set-option :smt.mbqi false) (set-option :auto_config false) diff --git a/Strata/Languages/Python/z3_parallel.py b/Strata/Languages/Python/z3_parallel.py new file mode 100755 index 0000000000..5b28d01df5 --- /dev/null +++ b/Strata/Languages/Python/z3_parallel.py @@ -0,0 +1,124 @@ +#!/usr/bin/env python3 + +# Copyright Strata Contributors + +# SPDX-License-Identifier: Apache-2.0 OR MIT + +# This file runs several configurations of Z3 in parallel, and returns SAT/UNSAT if +# any return the same, only returning unknown if all return unknown / timeout. +# Configurations can be added to z3_configs.txt, one per line. +# The solvers currently run in parallel until completion. This could be improved, but +# we currently use a 1s timeout, so it's not a high priority. + +import sys +import subprocess +import tempfile +from pathlib import Path +from concurrent.futures import ProcessPoolExecutor, as_completed + +def run_z3_config(smt_content, config_pair, timeout): + with tempfile.NamedTemporaryFile(mode='w', suffix='.smt2', delete=False) as f: + f.write(f"{config_pair[0]} {config_pair[1]}\n") + f.write(smt_content) + f.flush() + + process = None + try: + process = subprocess.Popen( + ['z3', f'-T:{timeout}', f.name], + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + text=True + ) + stdout, stderr = process.communicate(timeout=timeout) + Path(f.name).unlink() + + output = stdout.strip() + first_line = output.split('\n')[0].lower() if output else '' + if first_line == 'sat': + return 'sat', output + elif first_line == 'unsat': + return 'unsat', output + return None, output + except subprocess.TimeoutExpired: + if process: + process.kill() + process.wait() + Path(f.name).unlink() + return None, "timeout" + except Exception as e: + Path(f.name).unlink() + return None, str(e) + +def main(): + if len(sys.argv) < 2: + print("Usage: z3_parallel.py [-v] [-c config_file] ") + sys.exit(1) + + verbose = False + config_file = None + args = sys.argv[1:] + + while args and args[0].startswith('-'): + if args[0] == '-v': + verbose = True + args = args[1:] + elif args[0] == '-c': + if len(args) < 2: + print("Usage: z3_parallel.py [-v] [-c config_file] ") + sys.exit(1) + config_file = args[1] + args = args[2:] + else: + break + + if len(args) != 1: + print("Usage: z3_parallel.py [-v] [-c config_file] ") + sys.exit(1) + + smt_file = args[0] + + if config_file is None: + script_dir = Path(__file__).parent + config_file = script_dir / 'z3_configs.txt' + + timeout = 1 + + configs = [] + with open(config_file) as f: + for line in f: + line = line.strip() + parts = line.split(maxsplit=1) + if len(parts) == 2: + configs.append(parts) + elif len(parts) == 0: + configs.append(('', '')) + else: + configs.append((parts[0], '')) + + with open(smt_file) as f: + smt_content = f.read() + + with ProcessPoolExecutor(max_workers=len(configs)) as executor: + futures = [executor.submit(run_z3_config, smt_content, cfg, timeout) for cfg in configs] + + sat_result = None + all_results = [] + for future in as_completed(futures): + result, output = future.result() + all_results.append((result, output)) + if result and not sat_result: + sat_result = (result, output) + + if verbose: + for i, (result, output) in enumerate(all_results): + print(f"Config {i}: {result or 'unknown'} - {output}") + + if sat_result: + print(sat_result[0]) + return + + print("unknown") + +if __name__ == '__main__': + main() diff --git a/StrataMain.lean b/StrataMain.lean index 5751dea678..dc4eae86e3 100644 --- a/StrataMain.lean +++ b/StrataMain.lean @@ -205,10 +205,9 @@ def pyAnalyzeCommand : Command where if verbose then IO.println "Inlined: " IO.print newPgm + let solverName : String := "Strata/Languages/Python/z3_parallel.py" let vcResults ← EIO.toIO (fun f => IO.Error.userError (toString f)) - (Boogie.verify "z3" newPgm { Options.default with stopOnFirstError := false, - verbose, - removeIrrelevantAxioms := true } + (Boogie.verify solverName newPgm { Options.default with stopOnFirstError := false, verbose, removeIrrelevantAxioms := true } (moreFns := Strata.Python.ReFactory)) let mut s := "" for vcResult in vcResults do diff --git a/StrataTest/Languages/Python/expected/test_datetime.expected b/StrataTest/Languages/Python/expected/test_datetime.expected index 9ca7ad8bfc..0326511030 100644 --- a/StrataTest/Languages/Python/expected/test_datetime.expected +++ b/StrataTest/Languages/Python/expected/test_datetime.expected @@ -15,8 +15,9 @@ ensures_maybe_except_none: verified py_assertion: unknown -py_assertion: unknown +py_assertion: verified -py_assertion: unknown +py_assertion: verified -py_assertion: unknown +py_assertion: failed +CEx: diff --git a/StrataTest/Languages/Python/expected/test_function_def_calls.expected b/StrataTest/Languages/Python/expected/test_function_def_calls.expected index ebb5e87f90..929ca1a80e 100644 --- a/StrataTest/Languages/Python/expected/test_function_def_calls.expected +++ b/StrataTest/Languages/Python/expected/test_function_def_calls.expected @@ -14,7 +14,7 @@ assert_opt_name_none_or_bar: verified ensures_maybe_except_none: verified test_helper_procedure_assert_name_is_foo_3: failed -CEx: ($__s49, "") +CEx: test_helper_procedure_assert_opt_name_none_or_str_4: verified From 54324644363d6a5ae17648ad66792de8cdaa1aeb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Mika=C3=ABl=20Mayer?= Date: Mon, 22 Dec 2025 12:39:44 -0600 Subject: [PATCH 66/68] feat(DDM): Add pipe-delimited identifier support (#285) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implements pipe-delimited identifiers (`|identifier|`) per SMT-LIB 2.6 specification. **Implementation:** - Parser: Handles `|identifier|` with escape sequences (`\|` → `|`, `\\` → `\`) - Formatter: Outputs pipe delimiters when needed, strips Lean's `«»` notation, re-escapes - Disambiguates `||` operator from `|identifier|` **Tests:** - Special characters: hyphens, spaces, `@#$`, Unicode, guillemets, numbers - Escape sequences verified in AST (not just round-trip) - Coexistence with `|` and `||` operators - Explicitly not supported: Binary `|` operator without surrounding spaces All tests pass. --- Strata/DDM/Format.lean | 58 ++++++++++++++- Strata/DDM/Parser.lean | 72 +++++++++++++++++- StrataTest/DDM/PipeIdent.lean | 133 ++++++++++++++++++++++++++++++++++ 3 files changed, 259 insertions(+), 4 deletions(-) create mode 100644 StrataTest/DDM/PipeIdent.lean diff --git a/Strata/DDM/Format.lean b/Strata/DDM/Format.lean index 50f037d3c2..7a62d4ebc5 100644 --- a/Strata/DDM/Format.lean +++ b/Strata/DDM/Format.lean @@ -8,12 +8,64 @@ import Strata.DDM.AST import Strata.DDM.Util.Fin import Strata.DDM.Util.Format import Strata.DDM.Util.Nat +import Strata.DDM.Util.String import Std.Data.HashSet open Std (Format format) namespace Strata +/-- +Check if a character is valid for starting a regular identifier. +Regular identifiers must start with a letter or underscore. +-/ +private def isIdBegin (c : Char) : Bool := + c.isAlpha || c == '_' + +/-- +Check if a character is valid for continuing a regular identifier. +Regular identifiers can contain letters, digits, underscores, and apostrophes. +-/ +private def isIdContinue (c : Char) : Bool := + c.isAlphanum || c == '_' || c == '\'' + +/-- +Check if a string needs pipe delimiters when formatted as an identifier. +Returns true if the string contains special characters, spaces, or starts with a digit. +-/ +private def needsPipeDelimiters (s : String) : Bool := + if h : s.isEmpty then + true + else + let firstChar := s.startValidPos.get (by simp_all [String.isEmpty]) + !isIdBegin firstChar || s.any (fun c => !isIdContinue c) + +/-- +Escape a string for use in pipe-delimited identifiers (SMT-LIB 2.6). +Escapes \ as \\ and | as \| +-/ +private def escapePipeIdent (s : String) : String := + s.foldl (init := "") fun acc c => + if c == '\\' then acc ++ "\\\\" + else if c == '|' then acc ++ "\\|" + else acc.push c + +/-- +Format a string as an identifier, using pipe delimiters if needed. +Strips Lean's «» notation if present. +Follows SMT-LIB 2.6 specification for quoted symbols. +-/ +private def formatIdent (s : String) : Format := + -- Strip Lean's «» notation if present + let s := if s.startsWith "«" && s.endsWith "»" then + s.drop 1 |>.dropRight 1 + else + s + if needsPipeDelimiters s then + Format.text ("|" ++ escapePipeIdent s ++ "|") + else + Format.text s + structure PrecFormat where format : Format prec : Nat @@ -210,9 +262,9 @@ macro_rules instance : ToStrataFormat QualifiedIdent where mformat (ident : QualifiedIdent) _ s := if ident.dialect ∈ s.openDialects then - .ofFormat ident.name + .atom (formatIdent ident.name) else - .atom f!"{ident.dialect}.{ident.name}" + .atom f!"{ident.dialect}.{formatIdent ident.name}" namespace TypeExprF @@ -314,7 +366,7 @@ private partial def ArgF.mformatM {α} : ArgF α → FormatM PrecFormat | .expr e => e.mformatM | .type e => pformat e | .cat e => pformat e -| .ident _ x => pformat x +| .ident _ x => return .atom (formatIdent x) | .num _ x => pformat x | .decimal _ v => pformat v | .strlit _ s => return .atom (.text <| escapeStringLit s) diff --git a/Strata/DDM/Parser.lean b/Strata/DDM/Parser.lean index 57e530a5cc..e94b952d07 100644 --- a/Strata/DDM/Parser.lean +++ b/Strata/DDM/Parser.lean @@ -300,13 +300,83 @@ def charLitFnAux (startPos : String.Pos.Raw) : ParserFn := fun c s => if curr == '\'' then mkNodeToken charLitKind startPos c s else s.mkUnexpectedError "missing end of character literal" +/-- +Parse and unescape a pipe-delimited identifier. +Returns (closing pipe position, unescaped string). +-/ +private def parsePipeDelimitedIdent (c : ParserContext) (startPos : String.Pos.Raw) : String.Pos.Raw × String := + Id.run do + let mut pos := startPos + let mut result := "" + while !c.atEnd pos do + let ch := c.get pos + if ch == '|' then + return (pos, result) + else if ch == '\\' then + pos := c.next pos + if !c.atEnd pos then + let nextCh := c.get pos + if nextCh == '|' || nextCh == '\\' then + result := result.push nextCh -- Unescape: \| -> | or \\ -> \ + pos := c.next pos + else + result := result.push '\\' -- Invalid escape, keep backslash + else + result := result.push '\\' + else + result := result.push ch + pos := c.next pos + return (pos, result) + +/-- +Create an identifier atom from an unescaped pipe-delimited identifier string. +-/ +private def mkPipeIdentResult (startPos : String.Pos.Raw) (closingPipePos : String.Pos.Raw) (unescaped : String) (tk : Option Token) : ParserFn := fun c s => + let s := s.setPos (c.next closingPipePos) -- Skip closing | + if isToken startPos s.pos tk then + mkTokenAndFixPos startPos tk c s + else + let stopPos := s.pos + let rawVal := c.substring startPos stopPos + let s := whitespace c s + let trailingStopPos := s.pos + let leading := c.mkEmptySubstringAt startPos + let trailing := c.substring (startPos := stopPos) (stopPos := trailingStopPos) + let info := SourceInfo.original leading startPos trailing stopPos + let atom := mkIdent info rawVal (.str .anonymous unescaped) + s.pushSyntax atom + def identFnAux (startPos : String.Pos.Raw) (tk : Option Token) : ParserFn := fun c s => let i := s.pos if h : c.atEnd i then s.mkEOIError else let curr := c.get' i h - if isIdBeginEscape curr then + if curr == '|' then + -- Pipe-delimited identifiers (SMT-LIB 2.6): |identifier| + -- Disambiguate from | operator by checking context + let nextPos := c.next' i h + if c.atEnd nextPos then + -- Single | at EOF - treat as token if matched + match tk with + | some _ => mkTokenAndFixPos startPos tk c s + | none => s.mkError "identifier" + else + let nextChar := c.get nextPos + -- Check if this is an operator token or pipe-delimited identifier + let isOperator := match tk with + | some token => token.rawEndPos.byteIdx > 1 || nextChar == '|' || nextChar.isWhitespace + | none => false + if isOperator then + mkTokenAndFixPos startPos tk c s + else + -- Parse pipe-delimited identifier with escape sequences + let (closingPipePos, unescaped) := parsePipeDelimitedIdent c nextPos + if c.atEnd closingPipePos then + s.mkUnexpectedErrorAt "unterminated pipe-delimited identifier" nextPos + else + mkPipeIdentResult startPos closingPipePos unescaped tk c s + else if isIdBeginEscape curr then let startPart := c.next' i h let s := takeUntilFn isIdEndEscape c (s.setPos startPart) if h : c.atEnd s.pos then diff --git a/StrataTest/DDM/PipeIdent.lean b/StrataTest/DDM/PipeIdent.lean new file mode 100644 index 0000000000..2b95bd55c4 --- /dev/null +++ b/StrataTest/DDM/PipeIdent.lean @@ -0,0 +1,133 @@ +/- + Copyright Strata Contributors + + SPDX-License-Identifier: Apache-2.0 OR MIT +-/ + +import Strata.DDM.Integration.Lean + +open Strata + +-- Test dialect for pipe-delimited identifiers (SMT-LIB 2.6 syntax) +#dialect +dialect PipeIdent; + +category Expression; + +op var (name : Ident) : Expression => name; +op assign (lhs : Ident, rhs : Expression) : Command => lhs:0 " := " rhs ";"; +op add (a : Expression, b : Expression) : Expression => @[prec(10), leftassoc] a " + " b; +op or (a : Expression, b : Expression) : Expression => @[prec(5), leftassoc] a " || " b; +op bitwiseOr (a : Expression, b : Expression) : Expression => @[prec(6), leftassoc] a " | " b; +op intLit (n : Num) : Expression => @[prec(0)] n; + +#end + +namespace PipeIdent + +#strata_gen PipeIdent + +end PipeIdent + +-- Various special characters in pipe-delimited identifiers +-- Including «» which tests that Lean's «» notation is properly stripped +/-- +info: program PipeIdent; +result := |special-name| + |name with spaces| + |name@with#special$chars| + |123numeric| + |name-with-émojis-🎉| + |name«with»guillemets| + regularName; +-/ +#guard_msgs in +#eval (#strata +program PipeIdent; +result := |special-name| + |name with spaces| + |name@with#special$chars| + |123numeric| + |name-with-émojis-🎉| + |name«with»guillemets| + regularName; +#end).format + +-- || operator is not confused with pipe-delimited identifiers +/-- +info: program PipeIdent; +result := |special-name| || regularName; +-/ +#guard_msgs in +#eval (#strata +program PipeIdent; +result := |special-name| || regularName; +#end).format + +-- Operator-like identifiers +/-- +info: program PipeIdent; +result := |++| + |--| + |**|; +-/ +#guard_msgs in +#eval (#strata +program PipeIdent; +result := |++| + |--| + + |**|; +#end).format + +-- Escape sequences (SMT-LIB 2.6 spec) +/-- +info: program PipeIdent; +result := |name\|with\|pipes| + |path\\to\\file|; +-/ +#guard_msgs in +#eval (#strata +program PipeIdent; +result := |name\|with\|pipes| + + |path\\to\\file|; +#end).format + +-- Single | operator coexists with |identifier| +/-- +info: program PipeIdent; +result := |x-value| | |y-value| | regularVar; +-/ +#guard_msgs in +#eval (#strata +program PipeIdent; +result := |x-value| | |y-value| | regularVar; +#end).format + +-- Verify escape sequences are unescaped in AST (not just round-trip) +def testEscapeAST := #strata +program PipeIdent; +x := |name\|with\|pipes|; +y := |path\\to\\file|; +#end + +-- Extract identifier from var operation in RHS +def getRHSIdent (op : Operation) : String := + match op.args[1]! with + | .op varOp => + match varOp.args[0]! with + | .ident _ s => s + | _ => "" + | _ => "" + +-- Verify: \| is unescaped to | in AST (stored with Lean's «» notation) +#guard (getRHSIdent testEscapeAST.commands[0]!) == "«name|with|pipes»" + +-- Verify: \\ is unescaped to single \ in AST (stored with Lean's «» notation) +#guard (getRHSIdent testEscapeAST.commands[1]!) == "«path\\to\\file»" + +-- Test dialect with | operator that has NO spaces in syntax definition +#dialect +dialect PipeIdentNoSpace; + +category Expression; + +op var (name : Ident) : Expression => name; +op bitwiseOr (a : Expression, b : Expression) : Expression => @[prec(6), leftassoc] a "|" b; +op exprStmt (e : Expression) : Command => e ";"; + +#end + +-- Edge case: | operator without spaces can create ambiguous output +-- "normalId|pipe" is parsed as normalId followed by unterminated pipe-delimited identifier +/-- +error: unterminated pipe-delimited identifier +-/ +#guard_msgs in +#eval (#strata +program PipeIdentNoSpace; +normalId|pipe; +#end).format From 98566512cf747ff5ba4b98cc2a9853286493162e Mon Sep 17 00:00:00 2001 From: Remy Willems Date: Tue, 23 Dec 2025 12:03:35 +0100 Subject: [PATCH 67/68] Fix TestGrammar --- StrataTest/Languages/Laurel/Grammar/TestGrammar.lean | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean index 83e8e7c69a..c6ee832924 100644 --- a/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean +++ b/StrataTest/Languages/Laurel/Grammar/TestGrammar.lean @@ -16,7 +16,7 @@ namespace Laurel def testAssertFalse : IO Unit := do let laurelDialect: Strata.Dialect := Laurel - let filePath := "Strata/Languages/Laurel/Examples/Fundamentals/1.AssertFalse.lr.st" + let filePath := "StrataTest/Languages/Laurel/Examples/Fundamentals/1. AssertFalse.lr.st" let result ← testGrammarFile laurelDialect filePath if !result.normalizedMatch then From e26c206edee81224b351e559dd564dcc9caa6095 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Mika=C3=ABl=20Mayer?= Date: Tue, 23 Dec 2025 14:30:34 -0600 Subject: [PATCH 68/68] feat(DDM): Support dots in identifiers (#293) Adds support for dots in identifiers to better support B3-style and Lean-style naming conventions without requiring pipe delimiters. ## Changes - Parser: Extended identifier character set to include `.`, `?`, and `!` - Formatter: Updated to match parser behavior - Tests: Added coverage with AST verification ## Examples - `qualified.name`, `x.y` (qualified names) - `free?`, `result!` (Lean-style suffixes) --- Strata/DDM/Format.lean | 3 +-- Strata/DDM/Parser.lean | 12 ++++++++--- StrataTest/DDM/PipeIdent.lean | 39 +++++++++++++++++++++++++++++++++++ 3 files changed, 49 insertions(+), 5 deletions(-) diff --git a/Strata/DDM/Format.lean b/Strata/DDM/Format.lean index 7a62d4ebc5..416a87fd73 100644 --- a/Strata/DDM/Format.lean +++ b/Strata/DDM/Format.lean @@ -24,10 +24,9 @@ private def isIdBegin (c : Char) : Bool := /-- Check if a character is valid for continuing a regular identifier. -Regular identifiers can contain letters, digits, underscores, and apostrophes. -/ private def isIdContinue (c : Char) : Bool := - c.isAlphanum || c == '_' || c == '\'' + c.isAlphanum || c == '_' || c == '\'' || c == '.' || c == '?' || c == '!' /-- Check if a string needs pipe delimiters when formatted as an identifier. diff --git a/Strata/DDM/Parser.lean b/Strata/DDM/Parser.lean index e94b952d07..e60cafd91e 100644 --- a/Strata/DDM/Parser.lean +++ b/Strata/DDM/Parser.lean @@ -122,8 +122,14 @@ def stringInputContext (fileName : System.FilePath) (contents : String) : InputC fileName := fileName.toString fileMap := FileMap.ofString contents +private def strataIsIdFirst (c : Char) : Bool := + c.isAlpha || c == '_' + +private def strataIsIdRest (c : Char) : Bool := + c.isAlphanum || c == '_' || c == '\'' || c == '.' || c == '?' || c == '!' + private def isIdFirstOrBeginEscape (c : Char) : Bool := - isIdFirst c || isIdBeginEscape c + strataIsIdFirst c || isIdBeginEscape c private def isToken (idStartPos idStopPos : String.Pos.Raw) (tk : Option Token) : Bool := match tk with @@ -385,9 +391,9 @@ def identFnAux (startPos : String.Pos.Raw) (tk : Option Token) : ParserFn := fun let stopPart := s.pos let s := s.next' c s.pos h mkIdResult startPos tk startPart stopPart c s - else if isIdFirst curr then + else if strataIsIdFirst curr then let startPart := i - let s := takeWhileFn isIdRest c (s.next c i) + let s := takeWhileFn strataIsIdRest c (s.next c i) let stopPart := s.pos mkIdResult startPos tk startPart stopPart c s else diff --git a/StrataTest/DDM/PipeIdent.lean b/StrataTest/DDM/PipeIdent.lean index 2b95bd55c4..e257641265 100644 --- a/StrataTest/DDM/PipeIdent.lean +++ b/StrataTest/DDM/PipeIdent.lean @@ -87,6 +87,28 @@ program PipeIdent; result := |x-value| | |y-value| | regularVar; #end).format +-- Identifiers with dots don't require pipe delimiters +/-- +info: program PipeIdent; +result := qualified.name + another.dotted.identifier + x.y; +-/ +#guard_msgs in +#eval (#strata +program PipeIdent; +result := qualified.name + another.dotted.identifier + x.y; +#end).format + +-- Identifiers with consecutive dots +/-- +info: program PipeIdent; +result := a..b + x...y + trailing..end; +-/ +#guard_msgs in +#eval (#strata +program PipeIdent; +result := a..b + x...y + trailing..end; +#end).format + -- Verify escape sequences are unescaped in AST (not just round-trip) def testEscapeAST := #strata program PipeIdent; @@ -109,6 +131,23 @@ def getRHSIdent (op : Operation) : String := -- Verify: \\ is unescaped to single \ in AST (stored with Lean's «» notation) #guard (getRHSIdent testEscapeAST.commands[1]!) == "«path\\to\\file»" +-- Verify dots are preserved in AST +def testDotIdent := #strata +program PipeIdent; +x := qualified.name; +y := another.dotted.identifier; +z := a..b; +w := x...y; +v := trailing..end; +#end + +-- Verify: dots are preserved in identifier names in AST (stored with Lean's «» notation) +#guard (getRHSIdent testDotIdent.commands[0]!) == "«qualified.name»" +#guard (getRHSIdent testDotIdent.commands[1]!) == "«another.dotted.identifier»" +#guard (getRHSIdent testDotIdent.commands[2]!) == "«a..b»" +#guard (getRHSIdent testDotIdent.commands[3]!) == "«x...y»" +#guard (getRHSIdent testDotIdent.commands[4]!) == "«trailing..end»" + -- Test dialect with | operator that has NO spaces in syntax definition #dialect dialect PipeIdentNoSpace;