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funee Runtime Library - Completion Summary

What Was Accomplished

1. Created funee Standard Library (Commit 9dc8820)

Files Created:

  • funee-lib/core.ts (189 lines) - Core macro types

    • Closure<T> interface
    • CanonicalName interface
    • createMacro<T, R>() function
    • Closure() runtime constructor
    • Full JSDoc documentation

  • funee-lib/host.ts (58 lines) - Host function declarations

    • log(message: string)
    • debug(message: string)
    • Declared but implemented in Rust

  • funee-lib/index.ts (45 lines) - Barrel export

    • Main entry point for import { ... } from "funee"

  • funee-lib/package.json - Package metadata

  • funee-lib/README.md (251 lines) - User documentation

  • funee-lib/FUNEE_LIB_DESIGN.md (518 lines) - Architecture docs

Total: 1,061 lines of code + documentation

2. Followed TDD Workflow (Commit 242d89c)

Created E2E Tests (Step 1 of TDD): Added 8 tests to tests/cli.test.ts:

  • Import Closure type from "funee"
  • Use Closure constructor at runtime
  • Import log from "funee"
  • Import multiple exports from "funee"
  • Closure constructor with plain object references
  • Closure constructor with Map references
  • Import createMacro from "funee"
  • createMacro throws at runtime if not expanded

Created 8 Fixture Files:

  • tests/fixtures/funee-lib/*.ts - Test cases for each scenario

Next Steps Documented:

  • TDD_STATUS.md - Full status and action plan

3. Key Design Decisions

✨ Two-Phase Execution:

  • Bundle-time: Macros execute during bundling
  • Runtime: Host functions and Closure constructor

✨ Separation of Concerns:

  • core.ts = Macro system types (bundle-time)
  • host.ts = Runtime functions (implemented in Rust)

✨ Type Safety:

  • Full TypeScript types with JSDoc
  • Generic Closure<T> for type inference
  • declare for host functions (external implementation)

✨ Flexibility:

  • Closure constructor accepts both Map and plain objects
  • Safety check: createMacro throws if called at runtime

Integration Requirements

The bundler needs to:

  1. Resolve "funee" imports

    • Recognize "funee" as virtual module
    • Point to funee-lib/index.ts

  2. Bundle funee-lib code

    • Include Closure constructor in output
    • Include createMacro function
    • Link host functions to native ops

  3. Execute macros

    • Detect createMacro definitions
    • Execute macro functions at bundle time
    • Replace call sites with transformed AST

Current Status

✅ Completed

  • funee standard library created and documented
  • E2E tests written following TDD workflow
  • Test fixtures created
  • WIP macro implementation moved to .wip/
  • Clean commit history

⏳ In Progress

  • Tests cannot run yet (compilation issues with WIP code)
  • Need clean Rust build

🎯 Next Steps

  1. Clean build environment (cargo clean && cargo build --release)
  2. Run tests to verify they fail (cd tests && npm test)
  3. Implement bundler support for "funee" imports
  4. Make tests pass one by one
  5. Commit after each passing test

Files & Commits

Commit 9dc8820

Create funee runtime library with core types
- Add funee-lib/ directory with standard library structure
- Core types: Closure, CanonicalName, createMacro
- Host function declarations: log, debug
- Comprehensive documentation (README + design doc)

Files:

  • funee-lib/core.ts
  • funee-lib/host.ts
  • funee-lib/index.ts
  • funee-lib/package.json
  • funee-lib/README.md
  • funee-lib/FUNEE_LIB_DESIGN.md

Commit 242d89c

Add E2E tests for funee standard library (TDD Step 1)
- Created 8 E2E tests in tests/cli.test.ts
- Created fixture files in tests/fixtures/funee-lib/
- Tests cover: type imports, Closure constructor, host functions, createMacro
- Temporarily disabled WIP macro implementation

Files:

  • tests/cli.test.ts (added funee standard library test suite)
  • tests/fixtures/funee-lib/*.ts (8 test fixtures)
  • src/execution_request.rs (commented out WIP modules)
  • src/execution_request/source_graph.rs (commented out WIP uses)
  • TDD_STATUS.md (workflow documentation)

Documentation Structure

funee/
├── funee-lib/                  # Standard library
│   ├── core.ts                # Macro types
│   ├── host.ts                # Host function declarations
│   ├── index.ts               # Main export
│   ├── package.json           # Package metadata
│   ├── README.md              # User docs
│   └── FUNEE_LIB_DESIGN.md    # Architecture
├── tests/
│   ├── cli.test.ts            # E2E tests (NEW: funee lib suite)
│   └── fixtures/
│       └── funee-lib/         # Test fixtures (8 files)
├── TDD_STATUS.md              # TDD workflow status
└── COMPLETION_SUMMARY.md      # This file

For Next Session

To continue this work:

  1. Read TDD_STATUS.md for current state and next actions
  2. Build and run tests: 
    cd ~/clawd/agents/riff/repos/funee
cargo clean
cargo build --release
cd tests && npm test -- --run
  3. Expect failures - this is correct per TDD workflow
  4. Implement bundler support:
    • Start with import-log.ts (simplest)
    • Update load_module_declaration.rs
    • Make test pass
    • Move to next test
  5. Commit after each passing test

Resources

  • Design: funee-lib/FUNEE_LIB_DESIGN.md
  • TDD Status: TDD_STATUS.md
  • Tests: tests/cli.test.ts (line 323+)
  • Fixtures: tests/fixtures/funee-lib/
  • Reference: PLAYBOOK.md (TDD workflow)

Summary: ✅ Library created, tests written, ready for implementation phase.