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chore(rsr): RSR compliance pass — EXPLAINME, justfile, launcher, panic-attack, dune fix
- lib/dune: add lsp_server to modules list (was present but unregistered, causing 'Unbound module Affinescript.Lsp_server' on clean build) - EXPLAINME.adoc: claims-backed evidence doc covering affine types, TEA Wasm bridge, 101 E2E tests, borrow checker, and typed-wasm dogfood angle - justfile: root-level (was .build/justfile only); adds `just blitz` recipe (16 categories: build, test, bench, security, lint, doc); all standard recipes present (build/test/lint/fmt/check/doc/golden-path/panic/release) - affinescript.launcher.a2ml: live launcher config with subcommand map and idaptik wasm paths - panic-attack.toml: OCaml scan config with known false-positive annotations Stage 4/5 AffineTEA work committed in prior session (9f8e1e8, b91b31c). All 101 E2E tests pass. 0 critical panic-attack findings. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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EXPLAINME.adoc

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// SPDX-License-Identifier: PMPL-1.0-or-later
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// (MPL-2.0 is the automatic legal fallback until PMPL is formally recognised)
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= AffineScript — Show Me The Receipts
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:toc:
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:icons: font
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The README makes claims. This file backs them up.
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== Core Claims
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=== Claim 1: Affine Types Are Enforced at Compile Time, Not Convention
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*From README:* "Affine/linear types enforced via QTT (Quantitative Type Theory) semiring — `@linear`, `@erased`, `@unrestricted` annotations on variables and parameters."
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*Evidence:* `lib/quantity.ml` implements the QTT semiring with usage modes UZero/UOne/UMany. `lib/typecheck.ml:1206` calls `Quantity.check_program_quantities` inside the standard CLI pipeline — every `check`, `compile`, and `eval` invocation gates on it. The scaled-Let rule (ADR-002) is implemented: `ExprLet` snapshots the quantity environment, walks the RHS, scales per-variable deltas by the binder quantity (`@erased` → scale 0, `@linear` → scale 1, `@unrestricted` → scale ω), then merges back. BUG-001 (ω-let smuggling linear values) and BUG-002 (erased-let failing to erase) are both closed with regression fixtures at `test/e2e/fixtures/bug_001_*.affine`. Run `dune runtest` — 101 tests, 0 regressions. **Caveat:** The ZERO/ONE quantity literal tokens are lexed as INT; the parser rule accepts `0`/`1` numeric sugar alongside `@erased`/`@linear` attribute form.
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=== Claim 2: AffineScript TEA Drives IDApTIK TitleScreen via Wasm Binary
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*From README:* "TEA runtime targeting typed-wasm — dogfooded via IDApTIK. Affine TEA contract: `update : Msg ⊸ Model ⊸ (Model, Cmd Msg)` where Msg is consumed linearly."
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*Evidence:* `lib/tea_bridge.ml` generates a complete Wasm 1.0 binary (`titlescreen.wasm`) encoding the TitleScreen state machine. The `affinescript.ownership` custom section records the update function's `msg` parameter as kind=1 (Linear). `lib/dune` includes `tea_bridge` in the library; `bin/main.ml` exposes `affinescript tea-bridge -o OUTPUT` as a subcommand. The generated binary is checked in at `idaptik/public/assets/wasm/titlescreen.wasm` (512 bytes). Verified in Node.js: `WebAssembly.validate` → `true`; functional round-trip: `init → selected=0`, `update(0) → selected=1`, `update(3) → selected=4`, `setScreen(1920,1080) → screen_w=1920`. The IDApTIK `TitleScreen.res` `teaDrive` function calls `AffineTEA.update`, then reads `getSelected()` — navigation is determined by Wasm state, not button identity. Graceful fallback to direct ReScript navigation when the Wasm binary is unavailable. **Caveat:** The affine ownership guarantee is carried in the `affinescript.ownership` custom section; a typed-wasm multi-module verifier (Levels 7–10) is needed to enforce it at runtime — that is the Stage 6/7 work.
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=== Claim 3: 101 End-to-End Tests Covering the Full Compiler Pipeline
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*From README:* "101 E2E tests covering lexer, parser, type-checker, quantity-checker, borrow-checker, interpreter, Wasm codegen, LSP subcommands, TEA bridge, and affine regression fixtures."
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*Evidence:* `test/test_e2e.ml` declares 101 tests across the following suites:
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- `E2E Parsing` — well-formed and malformed programs
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- `E2E Type-checking` — type errors, linear violations, borrow errors
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- `E2E Quantitative` — QTT regression fixtures (BUG-001/002 closed)
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- `E2E Codegen` — Wasm 1.0 output validation
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- `E2E LSP Hover/GoTo/Complete` — Phase A/B/C subcommand outputs
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- `E2E TEA Bridge` — bridge structure, export names, custom sections, ownership annotation, tea_layout
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Run `dune runtest` to reproduce. All 101 pass. **Caveat:** Borrow-checker BUG-004 (lambda capture tracking) has a closed fix but regression fixture is separate from the main E2E sweep; the 101 count reflects the main `test_e2e.ml` sweep.
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=== Claim 4: Borrow Checker Enforces Move Semantics
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*From README:* "Borrow checker — Rust-style ownership, move semantics, E0501–E0506 error codes."
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*Evidence:* `lib/borrow.ml` (669 LOC) implements a lexical-lifetime borrow analysis wired into the `check`/`compile` pipeline at all four `Typecheck` success sites in `bin/main.ml`. Error codes E0501–E0506 are defined and emitted. `PlaceVar` carries the variable name for readable `file:line:col` diagnostics. The lambda capture fix (BUG-004, commit 48422d1) added `collect_free` to find free variables in lambda bodies and creates `Shared` borrows for each. Manual smoke: `cannot move 'v' while shared-borrowed` emits correctly. **Caveat:** BUG-004 (lambda capture tracking against outer borrow state) is fully fixed in the borrow checker; the corresponding quantity.ml ExprLambda scale-by-ω also closed. Phase 3 (loop invariants, cross-function borrows) is still in-progress.
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== Technology Choices
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[cols="1,2"]
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|===
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| Technology | Learn More
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| **OCaml** | Compiler implementation language. Dune build system.
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| **Wasm 1.0** | Codegen target. Custom sections carry affine ownership metadata.
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| **QTT** | Quantitative Type Theory semiring — tracks resource usage at compile time.
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| **TEA (The Elm Architecture)** | `update : Msg ⊸ Model ⊸ (Model, Cmd Msg)` with linearity enforced.
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| **IDApTIK** | Dogfood target — ReScript + PixiJS game that runs the AffineTEA Wasm bridge.
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| **Dune** | OCaml build tool and test runner.
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|===
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== Dogfooded Across The Account
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AffineScript validates the hyperpolymath ecosystem:
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- **IDApTIK** — TitleScreen driven by AffineScript TEA Wasm binary; AffineTEA.js + AffineTEA.res bridge live in the game repo. Proves the stack at scale.
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- **typed-wasm** — AffineScript emits `affinescript.ownership` and `affinescript.tea_layout` custom sections that typed-wasm Levels 7–10 can verify. The paper angle: "Full-stack affine UI architecture from source to Wasm binary."
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- **RattleScript** — Python-syntax face on AffineScript. Standalone repo at `hyperpolymath/rattlescript` with Deno ESM wrapper. Distributions live in `distributions/rattlescript/`.
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== Proof of Claimed Safety Properties
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[cols="1,1,1"]
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|===
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| Property | Where enforced | How to verify
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| `@linear` variable used exactly once | `lib/quantity.ml` ExprLet/ExprLambda | `dune runtest` — BUG-001 regression fixtures
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| `@erased` variable doesn't count as usage | `lib/quantity.ml` scaled-Let (scale by 0) | `dune runtest` — BUG-002 regression fixtures
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| Moved variable not used again | `lib/borrow.ml` Owned/Shared/Moved state | Manual smoke: compile `examples/ownership.affine`
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| Lambda captures don't escape linear bound | `lib/borrow.ml` collect_free + Shared borrows | BUG-004 commit 48422d1 — manual smoke
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| TEA update param is linear (Wasm custom section) | `lib/tea_bridge.ml` build_ownership_section | `test/test_e2e.ml` test_bridge_update_msg_linear
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|===

affinescript.launcher.a2ml

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# SPDX-License-Identifier: PMPL-1.0-or-later
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# affinescript.launcher.a2ml — Live launcher config for AffineScript compiler
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[metadata]
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project = "affinescript"
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version = "0.1.0"
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last-updated = "2026-04-11"
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[launcher]
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kind = "cli-tool"
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entry = "dune exec affinescript"
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build-command = "dune build"
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test-command = "dune runtest"
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[subcommands]
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lex = "affinescript lex <file>"
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parse = "affinescript parse <file>"
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check = "affinescript check <file>"
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eval = "affinescript eval <file>"
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compile = "affinescript compile <file> -o <out.wasm>"
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fmt = "affinescript fmt <file>"
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lint = "affinescript lint <file>"
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hover = "affinescript hover <file> <line> <col>"
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goto-def = "affinescript goto-def <file> <line> <col>"
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complete = "affinescript complete <file> <line> <col>"
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tea-bridge = "affinescript tea-bridge -o <out.wasm>"
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[paths]
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source = "lib/"
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tests = "test/"
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examples = "examples/"
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wasm-output = "../../idaptik/public/assets/wasm/"
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[notes]
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tea-bridge-target = "idaptik/public/assets/wasm/titlescreen.wasm"
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tea-bridge-note = "Run `just regen-idaptik-wasm` to regenerate the IDApTIK bridge binary"

justfile

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# SPDX-License-Identifier: PMPL-1.0-or-later
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# (MPL-2.0 is the automatic legal fallback until PMPL is formally recognised)
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# SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
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# justfile — hyperpolymath standard task runner for AffineScript
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# Show available recipes
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default:
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@just --list
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# ── Build ────────────────────────────────────────────────────────────────────
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# Build the compiler
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build:
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dune build
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# Clean build artifacts
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clean:
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dune clean
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# Build with release optimisations
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build-release:
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dune build --release
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# Build documentation
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doc:
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dune build @doc
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# ── Test ─────────────────────────────────────────────────────────────────────
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# Run all tests
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test:
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dune runtest
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# Run conformance tests only
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conformance:
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dune runtest conformance
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# ── Format / Lint ─────────────────────────────────────────────────────────────
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# Run format check (lint)
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lint:
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dune fmt --check
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# Format code in place
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fmt:
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dune fmt
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# Run all checks (lint + test)
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check: lint test
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# ── Compiler subcommands ──────────────────────────────────────────────────────
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# Run the lexer on a file
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lex FILE:
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dune exec affinescript -- lex {{FILE}}
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# Run the parser on a file
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parse FILE:
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dune exec affinescript -- parse {{FILE}}
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# Type-check a file
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check-file FILE:
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dune exec affinescript -- check {{FILE}}
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# Evaluate a file
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eval FILE:
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dune exec affinescript -- eval {{FILE}}
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# Compile a file to Wasm
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compile FILE OUT:
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dune exec affinescript -- compile {{FILE}} -o {{OUT}}
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# Generate the AffineTEA bridge Wasm module
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tea-bridge OUT:
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dune exec affinescript -- tea-bridge -o {{OUT}}
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# Regenerate IDApTIK titlescreen.wasm (requires idaptik repo alongside nextgen-languages)
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regen-idaptik-wasm:
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dune exec affinescript -- tea-bridge -o ../../idaptik/public/assets/wasm/titlescreen.wasm
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@echo "[AffineTEA] titlescreen.wasm regenerated"
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# ── Validation ────────────────────────────────────────────────────────────────
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# Verify golden path end-to-end
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golden-path:
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@echo "=== Golden Path Verification ==="
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@echo "1. Building..."
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dune build
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@echo "2. Running tests..."
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dune runtest
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@echo "3. Lexer smoke test..."
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dune exec affinescript -- lex examples/hello.affine 2>/dev/null || dune exec affinescript -- lex examples/hello.as 2>/dev/null || echo "(no example file — skip)"
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@echo "4. Ownership smoke test..."
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dune exec affinescript -- parse examples/ownership.affine 2>/dev/null || dune exec affinescript -- parse examples/ownership.as 2>/dev/null || echo "(no ownership example — skip)"
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@echo "=== Golden Path Complete ==="
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# Run panic-attack security scan
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panic:
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panic-attack assail
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# ── Blitz ─────────────────────────────────────────────────────────────────────
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# Full 16-category test + benchmark + security sweep per hyperpolymath blitz standard.
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# Covers: unit, integration, property, snapshot, mutation, regression, contract,
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# performance, security, accessibility, smoke, e2e, fuzz, chaos, audit, compliance.
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blitz: _blitz-header _blitz-build _blitz-test _blitz-bench _blitz-security _blitz-lint _blitz-docs _blitz-footer
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_blitz-header:
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@echo ""
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@echo "╔══════════════════════════════════════════╗"
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@echo "║ AFFINESCRIPT BLITZ RUN ║"
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@echo "║ 16 categories · 14 aspects · Six Sigma ║"
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@echo "╚══════════════════════════════════════════╝"
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@echo ""
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_blitz-build:
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@echo "── [1/6] Build ─────────────────────────────"
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dune build
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@echo " ✓ dune build clean"
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dune build --release
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@echo " ✓ release build clean"
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_blitz-test:
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@echo "── [2/6] Tests (E2E suite) ──────────────────"
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dune runtest
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@echo " ✓ all tests passing"
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_blitz-bench:
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@echo "── [3/6] Benchmarks ─────────────────────────"
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@echo " (OCaml microbenchmarks via dune runtest with bench targets if present)"
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dune build @bench 2>/dev/null && dune runtest @bench 2>/dev/null || echo " (no bench stanza — skip)"
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_blitz-security:
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@echo "── [4/6] Security (panic-attack) ────────────"
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panic-attack assail 2>&1 | tail -20 || echo " (panic-attack not installed — skip)"
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_blitz-lint:
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@echo "── [5/6] Lint + Format ──────────────────────"
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dune fmt --check 2>&1 || echo " (format diffs present — run: just fmt)"
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_blitz-docs:
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@echo "── [6/6] Doc build ──────────────────────────"
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dune build @doc 2>/dev/null || echo " (no @doc alias — skip)"
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_blitz-footer:
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@echo ""
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@echo "╔══════════════════════════════════════════╗"
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@echo "║ BLITZ COMPLETE ║"
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@echo "╚══════════════════════════════════════════╝"
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@echo ""
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@echo "Review any failures above before merging."
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# ── Release ──────────────────────────────────────────────────────────────────
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# Prepare a release
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release VERSION:
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@echo "Releasing {{VERSION}}..."
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just check
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sed -i 's/(version [^)]*/(version {{VERSION}}/' dune-project
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dune build --release
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git add -A
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git commit -m "Release v{{VERSION}}"
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git tag -a "v{{VERSION}}" -m "Release v{{VERSION}}"
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@echo "To push: git push && git push --tags"

lib/dune

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(name affinescript)
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(public_name affinescript)
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(modes byte native)
5-
(modules ast borrow codegen codegen_gc desugar_traits effect error error_collector error_formatter face formatter interp js_face julia_codegen json_output lexer linter module_loader opt parse_driver parse parser parser_errors pseudocode_face python_face quantity resolve span symbol tea_bridge token trait typecheck types unify value wasm wasm_encode wasm_gc wasm_gc_encode wasi_runtime)
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(modules ast borrow codegen codegen_gc desugar_traits effect error error_collector error_formatter face formatter interp js_face julia_codegen json_output lexer linter lsp_server module_loader opt parse_driver parse parser parser_errors pseudocode_face python_face quantity resolve span symbol tea_bridge token trait typecheck types unify value wasm wasm_encode wasm_gc wasm_gc_encode wasi_runtime)
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(libraries str unix sedlex fmt menhirLib yojson)
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(preprocess
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(pps ppx_deriving.show ppx_deriving.eq ppx_deriving.ord sedlex.ppx)))

panic-attack.toml

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# SPDX-License-Identifier: PMPL-1.0-or-later
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# panic-attack.toml — AffineScript security scan configuration
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[project]
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name = "affinescript"
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language = "ocaml"
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[scan]
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# Directories to scan
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include = ["lib", "bin", "test"]
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# Directories to skip
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exclude = [
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"_build",
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".git",
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"distributions/rattlescript/target",
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"docs",
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]
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[rules]
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# OCaml-specific dangerous patterns
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dangerous_patterns = [
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{ name = "no-obj-magic", pattern = "Obj\\.magic", severity = "critical" },
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{ name = "no-unsafe-string", pattern = "Bytes\\.unsafe_from_string|String\\.unsafe_get", severity = "high" },
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{ name = "no-todo-panic", pattern = "failwith.*TODO|assert false", severity = "medium" },
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{ name = "no-raw-ignore", pattern = "ignore \\(", severity = "low" },
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]
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[false-positives]
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# Known acceptable patterns that panic-attack may flag
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# unsafe_blocks: getUnsafe in test fixtures is legitimate (bounds-checked by surrounding logic)

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