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hakorune/docs/development
nyash-codex c3a26e705e feat(joinir): Phase 47-A-IMPL - P3 Normalized infrastructure
Implement Pattern3 (if-sum) Normalized infrastructure, extending existing P2
StepSchedule and ShapeGuard systems.

Key changes:

1. StepSchedule generalization (P2 → P2/P3):
   - Renamed: pattern2_step_schedule.rs → step_schedule.rs
   - Extended StepKind enum with P3 variants:
     - IfCond (if condition in body)
     - ThenUpdates (carrier updates in then branch)
     - ElseUpdates (carrier updates in else branch)
   - Added pattern3_if_sum_schedule() function
   - Added unit test: test_pattern3_if_sum_schedule()
   - Updated module references (mod.rs, loop_with_break_minimal.rs)

2. ShapeGuard extension:
   - Added Pattern3IfSumMinimal variant to NormalizedDevShape
   - Added is_pattern3_if_sum_minimal() detector (placeholder)
   - Updated shape detector table
   - Extended capability_for_shape() mapping

3. Bridge integration:
   - bridge.rs: Added P3 shape handling in normalize_for_shape()
   - normalized.rs: Added P3 roundtrip match (uses P2 temporarily)

4. P2/P3 separation:
   - loop_with_break_minimal.rs: Added panic for P3 steps in P2 lowering
   - Clear boundary enforcement (P2 lowerer rejects P3 steps)

5. Documentation:
   - CURRENT_TASK.md: Phase 47-A-IMPL status
   - phase47-norm-p3-design.md: Implementation status section

Benefits:
- Reuses 90% of P2 infrastructure (ConditionEnv, CarrierInfo, ExitLine)
- Clean P2/P3 separation via StepKind
- Pure additive changes (no P2 behavioral changes)
- Ready for Phase 47-A-LOWERING (full P3 Normalized implementation)

Tests: 938/938 PASS (+1 from step_schedule unit test)
- All existing P1/P2 tests pass (no regressions)
- P3 test uses Structured path temporarily (proper lowering in next phase)

Next phase: Implement full P3 Normalized→MIR(direct) lowering
2025-12-12 05:23:18 +09:00
..

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/

  • RFCRequest 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/
  • ドキュメントのステータス/入口ポリシー: doc-status-policy.md
  • JoinIR / Selfhost の入口: current/main/01-JoinIR-Selfhost-INDEX.md

📝 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。