Files
hakorune/docs/issues/parser_unary_asi_alignment.md
Selfhosting Dev d90216e9c4 📚 Phase 15 - セルフホスティング戦略の明確化とEXE-first実装
## 主な変更点

### 🎯 戦略の転換と明確化
- PyVMを開発ツールとして位置づけ(本番経路ではない)
- EXE-first戦略を明確に優先(build_compiler_exe.sh実装済み)
- Phase順序の整理: 15.2(LLVM)→15.3(コンパイラ)→15.4(VM)

### 🚀 セルフホスティング基盤の実装
- apps/selfhost-compiler/にNyashコンパイラMVP実装
  - compiler.nyash: メインエントリー(位置引数対応)
  - boxes/: parser_box, emitter_box, debug_box分離
- tools/build_compiler_exe.sh: ネイティブEXEビルド+dist配布
- Python MVPパーサーStage-2完成(local/if/loop/call/method/new)

### 📝 ドキュメント整備
- Phase 15 README/ROADMAP更新(Self-Hosting優先明記)
- docs/guides/exe-first-wsl.md: WSLクイックスタート追加
- docs/private/papers/: 論文G~L、爆速事件簿41事例収録

### 🔧 技術的改善
- JSON v0 Bridge: If/Loop PHI生成実装(ChatGPT協力)
- PyVM/llvmliteパリティ検証スイート追加
- using/namespace機能(gated実装、Phase 15では非解決)

## 次のステップ
1. パーサー無限ループ修正(未実装関数の実装)
2. EXEビルドとセルフホスティング実証
3. c0→c1→c1'ブートストラップループ確立

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-09-15 18:44:49 +09:00

2.0 KiB
Raw Blame History

Parser/Bridge: Unary and ASI Alignment (Stage2)

Context

  • Rust parser already parses unary minus with higher precedence (parse_unary → factor → term) but PyVM pipe path did not reflect unary when emitting MIR JSON for the PyVM harness.
  • BridgeJSON v0 pathis correct for unary by transforming to 0 - expr in the Python MVP, but Rust→PyVM path uses emit_mir_json_for_harness which skipped UnaryOp.
  • ASI in arguments split over newlines is not yet supported in Rust (e.g., newline inside (..., ...) after a comma in a chained call), while Bridge/Selfhost cover ASI for statements and operators.

Proposed minimal steps

  • Unary for PyVM harness:

    • Option A (preferred later): extend emit_mir_json_for_harness[_bin] to export a unop instruction and add PyVM support. Requires schema change.
    • Option B (quick): legalize unary Neg to Const(0); BinOp('-', 0, v) before emitting, by inserting a synthetic temporary. This requires value id minting in emitter to remain selfconsistent, which we currently do not have. So Option B is nontrivial without changing emitter capabilities.
    • Decision: keep Bridge JSON v0 path authoritative for unary tests; avoid relying on Rust→PyVM for unary until we add a unop schema.
  • ASI inside call arguments (multiline):

    • Keep as NOT SUPPORTED for Rust parser in Phase15. Use singleline args in tests.
    • Selfhost/Bridge side already tolerate semicolons optionally after statements; operatorcontinuation is supported in Bridge MVP.

Tracking

  • If we want to support unary in the PyVM harness emitter:
    • Add unop to tools/pyvm_runner.py and src/llvm_py/pyvm/vm.py (accept {op:"unop", kind:"neg", src: vid, dst: vid})
    • Teach emitters to export UnaryOp accordingly (emit_mir_json_for_harness[_bin]).

Status

  • Bridge unary: OKny_stage2_bridge_smoke includes unary
  • Rust→PyVM unary: not supported in emitter; will stay out of CI until schema update
  • ASI in args over newline: not supported by Rust parser; keep tests singleline for now