a3df5ecc7a
Implements role-based separation of LoopBodyLocal variables to prevent inappropriate Trim promotion for body-only local variables. ## Changes ### Task 183-1: Design Documentation - Created `phase183-loopbodylocal-role-separation.md` with role taxonomy: - Condition LoopBodyLocal: Used in loop conditions → Trim promotion target - Body-only LoopBodyLocal: Only in body → No promotion needed - Documented architectural approach and implementation strategy ### Task 183-2: Implementation - Added `TrimLoopLowerer::is_var_used_in_condition()` helper - Recursively checks if variable appears in condition AST - Handles BinaryOp, UnaryOp, MethodCall node types - Updated `try_lower_trim_like_loop()` to filter condition LoopBodyLocal - Only processes LoopBodyLocal that appear in break conditions - Skips body-only LoopBodyLocal (returns Ok(None) early) - Added 5 unit tests for variable detection logic ### Task 183-3: Test Files - Created `phase183_body_only_loopbodylocal.hako` - Demonstrates body-only LoopBodyLocal (`temp`) not triggering Trim - Verified trace output: "No LoopBodyLocal detected, skipping Trim lowering" - Created additional test files (phase183_p1_match_literal, phase183_p2_atoi, phase183_p2_parse_number) ### Task 183-4: Documentation Updates - Updated `joinir-architecture-overview.md` with Phase 183 results - Updated `CURRENT_TASK.md` with Phase 183 completion status ## Results ✅ LoopBodyLocal role separation complete ✅ Body-only LoopBodyLocal skips Trim promotion ✅ 5 unit tests passing ✅ Trace verification successful ## Next Steps (Phase 184+) - Body-local variable MIR lowering support - String concatenation filter relaxation - Full _parse_number/_atoi implementation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Nyash Development Documentation 🔧
開発者向けの進行中タスクと開発計画ドキュメントです。
📂 ディレクトリ構造
current/
CURRENT_TASK.md- 現在進行中のタスク- アクティブな開発作業の詳細
- 最新の実装状況
roadmap/
- phases/ - フェーズ別開発計画
- phase-8/ - AST→MIR変換
- phase-9/ - VM/JIT実装
- phase-10/ - AOT最適化
- native-plan/ - ネイティブビルド計画
- 実行バックエンド統合
- パフォーマンス目標
proposals/
- RFC（Request for Comments）
- 新機能提案
- 設計ディスカッション
🎯 重要な参照先
- 進行状況:
current/CURRENT_TASK.md - 開発計画:
roadmap/phases/ - 技術提案:
proposals/
📝 注意事項
このディレクトリの内容は開発中であり、頻繁に変更されます。
安定した仕様はreference/を参照してください。