**Problem**: is_parameter() was too simple, checking only ValueId which changes through copies/PHIs. This caused parameters like 'data' to be misclassified as carriers, leading to incorrect PHI construction. **Solution**: Track original parameter names at function entry. **Changes**: 1. **Added function_param_names field** (builder.rs): - HashSet<String> to track original parameter names - Populated in lower_static_method_as_function() - Cleared and repopulated for each new function 2. **Improved is_parameter()** (loop_builder.rs): - Check name against function_param_names instead of ValueId - More reliable than checking func.params (ValueIds change) - __pin$*$@* variables correctly classified as carriers - Added debug logging with NYASH_LOOPFORM_DEBUG 3. **Enhanced debug output** (loopform_builder.rs): - Show carrier/pinned classification during prepare_structure() - Show variable_map state after emit_header_phis() **Test Results**: - ✅ 'args' correctly identified as parameter (was working) - ✅ 'data' now correctly identified as parameter (was broken) - ✅ __pin variables correctly classified as carriers - ✅ PHI values allocated and variable_map updated correctly - ⚠️ ValueId undefined errors persist (separate issue) **Remaining Issue**: ValueId(10) undefined error suggests PHI visibility problem or VM verification issue. Needs further investigation of emit_phi_at_block_start() or VM executor. **Backward Compatibility**: - Flag OFF: 100% existing behavior preserved (legacy path unchanged) - Feature-flagged with NYASH_LOOPFORM_PHI_V2=1 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <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。