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Author SHA1 Message Date
nyash-codex
471052ad8d feat(debug): __mir__.log追加+VM実行テスト - loopバグ確定 
## 🔍 func_scanner.hakoに__mir__.log追加
```hako
method skip_whitespace(s, idx) {
  __mir__.log("skip_ws/head", i, n)
  loop(1 == 1) {
    __mir__.log("skip_ws/loop", i, n)  ← 実行されない
    ...
  }
  __mir__.log("skip_ws/exit", i, n)
}
```

## 📊 CLI実行結果（MIRログ）
```
[MIR-LOG] skip_ws/head: %26=Integer(0) %28=Integer(6)
[MIR-LOG] skip_ws/exit: %26=Integer(0) %28=Integer(6)
```
- ✅ i=0, n=6（両方Integer, 値は正しい）
- ❌ `skip_ws/loop`が**一度も出ない**
- → **loop本体が実行されていないことがMIRレベルで確定**

## 🧪 Rustテスト更新
1. **ソースを束ねる**: func_scanner.hako + test file
   - FuncScannerBox関数がmoduleに含まれるように修正
2. **VM実行追加**: execute_module()でバグ再現確認
   - 期待: rc=0 (PASS), 実際: rc=1 (FAIL)

## 🎯 次のステップ
- MIRダンプでLoopForm展開を確認
- VM interpreter/LoopForm実行を調査

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-20 08:22:43 +09:00
nyash-codex
7ed13f98d5 test(stageb): 最小再現ケース+Rustテスト追加 - using読み込み問題発見 
## 🔍 新規ファイル
1. **funcscanner_skip_ws_min.hako**: 最小再現ケース
   - FuncScannerBox.skip_whitespace直接呼び出しテスト
   - 期待: idx=3（3空白スキップ）
   - 実際: idx=0（loop不実行でFAIL）

2. **mir_funcscanner_skip_ws.rs**: Rustレベルテスト
   - MIRコンパイル + 検証
   - 関数存在確認

## 🐛 重大発見
### 問題: using経由モジュールが読み込まれない
```
[test] Module has 2 functions
[test] ALL available functions:
[test]   - main
[test]   - condition_fn
```
- `using lang.compiler.entry.func_scanner as FuncScannerBox`宣言済み
- でもFuncScannerBox.skip_whitespace/2が**モジュールに存在しない**
- CLI実行時は動作 → Rustテスト環境特有の問題？

### 2層の問題構造
1. **本命バグ**: loop(1==1)が実行されない（CLI実行で再現済み）
2. **新発見**: usingモジュール読み込み未実装（Rustテスト環境）

## 📊 次のステップ
- using systemのコンパイル時モジュール解決を調査
- または別アプローチでloop バグに直接アプローチ

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-20 08:16:35 +09:00
nyash-codex
0dc8510daf debug(stageb): センチネル追加でVMバグ特定 - using経由static box内loop不実行 
## 🔍 調査結果
### ✅ 確認事項
- **本物の実装が呼ばれている**: SENTINEL出力で確認済み
  - 🔥 SENTINEL_SKIP_WS_CALLED!!!
  - 🎯 SENTINEL_KW_BOUNDARY_BEFORE_CALLED!!!
  - 🎯 SENTINEL_KW_BOUNDARY_AFTER_CALLED!!!
  - 🔤 SENTINEL_IS_IDENT_CHAR_CALLED!!!

### 🐛 重大バグ発見
**症状**: `FuncScannerBox.skip_whitespace` 内の `loop(1 == 1)` が実行されない

**証拠**:
```
[skip_ws] START idx=10 s.length()=173
[skip_ws] i=10 n=173
[skip_ws] RETURN i=10  ← ループボディが実行されず即座にreturn
```
- `[skip_ws] LOOP-TOP i=10` が**一度も出力されない**
- loop(1 == 1) の無限ループすら実行されない

**影響範囲**:
- box_name抽出失敗（空文字列）
- defs生成失敗（defs_len=0）
- canary テスト失敗

**問題の本質**:
- using 経由で読み込まれたモジュールの static box 内
- 静的メソッド呼び出し (`FuncScannerBox.skip_whitespace(...)`)
- loop 構文が VM/MIR レベルで実行されない

## 🔧 修正内容
1. **センチネル追加**: 4箇所に明確な出力追加
   - skip_whitespace, kw_boundary_before, kw_boundary_after, is_ident_char
2. **呼び出し修正**: `me.scan_all_boxes` → `StageBFuncScannerBox.scan_all_boxes`

## 📊 次のステップ
VM/MIR レイヤーでの loop 構文実装確認が必要

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-20 08:03:05 +09:00
nyash-codex
54b2735f13 refactor(stageb): FuncScannerBox完全静的化 - new()撤廃でSSOT確立 
## 構造改善
- ❌ `new FuncScannerBox()` 完全撤廃（8箇所削除）
- ✅ FuncScannerBox を純粋静的ヘルパー箱化
- ✅ StageBFuncScannerBox を薄いデリゲートファサードに
- ✅ 全 `me.*` 呼び出しを `FuncScannerBox.*` 静的呼び出しに変換

## エラー解決
- ✅ "Unknown method on InstanceBox" エラー根絶
- ✅ "Type error: unsupported compare Lt on String" エラー解決
- ✅ VM実行時の全エラー解消

## SSOT構造
FuncScannerBox (SSOT)
  ├─ 公開メソッド: skip_whitespace, find_matching_brace, 等
  ├─ 静的ヘルパーエイリアス: _parse_params, _strip_comments, 等
  └─ 内部実装: すべて FuncScannerBox.* 静的呼び出し

StageBFuncScannerBox (薄いファサード)
  └─ 全メソッドが FuncScannerBox への静的委譲のみ

## 未解決問題
- ⚠️ box_name 抽出が空文字列を返す（box検出は成功、名前抽出が失敗）
- ⚠️ defs_len=0 のまま（box_name='' のため _scan_methods が呼ばれない）

次のステップ: box_name抽出ロジックのデバッグ

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-20 07:45:28 +09:00
nyash-codex
e809d3a79b refactor(stageb): Phase 25.3 FuncScanner boxification完了 
- FuncScannerBox helper SSOT確立（8個のhelperに詳細コメント追加）
- StageBFuncScannerBox → FuncScannerBox完全委譲（約380行削減）
- scan_all_boxes状態フラグ整理（4つの状態遷移を明確化）
- 常時出力print削除（dev専用ログのみ保持）
- SSAテスト全pass（mir_funcscanner_scan_methods/fib_min）

Phase 25.3-B完了、次はfib defs canary緑化へ

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-20 07:01:21 +09:00
nyash-codex
3a82633924 refactor(funcscanner): Region+next_i パターン統一 & SSA テスト追加 
**FuncScanner .hako 側改善**:
- scan_all_boxes を Region + next_i 形式に統一（continue 多発による SSA/PHI 複雑さ削減）
- インデント修正（タブ→スペース統一）
- デバッグ print 削除

**SSA テスト追加**:
- lang/src/compiler/tests/funcscanner_scan_methods_min.hako
- src/tests/mir_funcscanner_ssa.rs (scan_methods & fib_min SSA デバッグテスト)

**Phase 25.3 ドキュメント**:
- docs/development/roadmap/phases/phase-25.3-funcscanner/ 追加

**関連**: Phase 25.3 FuncScanner 箱化準備作業

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-20 06:38:43 +09:00
nyash-codex
7373fa265b feat(loop-phi): Phase 25.1c/k - continue_merge PHI生成完了 
## 実装内容

### 1. continue_merge ブロックで PHI ノード生成
- `src/mir/loop_builder.rs` (422-557行)
- 複数の continue パスからの変数値を PHI でマージ
- 全て同じ値なら PHI 省略（最適化）
- merged_snapshot を seal_phis に渡す構造

### 2. ValueId::INVALID GUARD 修正
- `src/mir/phi_core/loopform_builder.rs` (111行)
- 誤った `value.0 == 0` チェックを `value == ValueId::INVALID` に修正
- ValueId::INVALID は u32::MAX なので、ValueId(0) は有効な値

### 3. test_loopform_builder_separation を構造ベースに改善
- 具体的な ValueId(100..105) を期待するアサーションを削除
- pinned/carrier の分離、ValueId の有効性、衝突チェックに変更
- HashMap の反復順序や内部の割り当て順に依存しないテストに改善

## テスト結果

✅ **既存テスト全て PASS**:
- `test_loopform_builder_separation` - 構造ベース修正で PASS
- 既存ループ関連テスト15個 - 全て PASS
- `mir_stageb_loop_break_continue::*` - PASS
- `mir_loopform_exit_phi::*` - PASS

✅ **実行確認**:
- 基本的なループ実行 - 正常動作（sum=10）
- continue を含むループ実行 - 正常動作（sum=8）
- continue_merge ブロック生成確認（BasicBlockId表示）

⚠️ **残存バグ**:
- FuncScannerBox.scan_all_boxes/1: ValueId(1283) undefined
- 13個の continue を持つ複雑なループで発生
- Phase 25.2 リファクタリングで解決予定

## 今後の予定

Phase 25.2 として以下のリファクタリングを実施予定：
1. LoopSnapshotMergeBox 実装（優先度1）
2. LoopVarClassifyBox 実装（優先度2）
3. LoopDebugLogBox 実装（優先度3）
4. TextScanRegionBox 実装（優先度4）

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-20 01:41:17 +09:00
nyash-codex
525e59bc8d feat(loop-phi): Add body-local variable PHI generation for Rust AST loops 
Phase 25.1c/k: Fix ValueId undefined errors in loops with body-local variables

**Problem:**
- FuncScannerBox.scan_all_boxes/1 and BreakFinderBox._find_loops/2 had ValueId
  undefined errors for variables declared inside loop bodies
- LoopFormBuilder only generated PHIs for preheader variables, missing body-locals
- Example: `local ch = s.substring(i, i+1)` inside loop → undefined on next iteration

**Solution:**
1. **Rust AST path** (src/mir/loop_builder.rs):
   - Detect body-local variables by comparing body_end_vars vs current_vars
   - Generate empty PHI nodes at loop header for body-local variables
   - Seal PHIs with latch + continue snapshot inputs after seal_phis()
   - Added HAKO_LOOP_PHI_TRACE=1 logging for debugging

2. **JSON v0 path** (already fixed in previous session):
   - src/runner/json_v0_bridge/lowering/loop_.rs handles body-locals
   - Uses same strategy but for JSON v0 bridge lowering

**Results:**
- ✅ FuncScannerBox.scan_all_boxes: 41 body-local PHIs generated
- ✅ Main.main (demo harness): 23 body-local PHIs generated
- ⚠️ Still some ValueId undefined errors remaining (exit PHI issue)

**Files changed:**
- src/mir/loop_builder.rs: body-local PHI generation logic
- lang/src/compiler/entry/func_scanner.hako: debug logging
- /tmp/stageb_funcscan_demo.hako: test harness

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-19 23:12:01 +09:00
nyash-codex
75f3df2505 refactor(mir): Phase 25.1o - do_break/continue 共通化（LoopExitKind型統一） 
【変更内容】
1. LoopExitKind enum定義
   - Break / Continue の型安全な区別

2. do_loop_exit() 共通メソッド作成（47行）
   - スナップショット取得（共通処理）
   - kind別のスナップショット保存
   - kind別のジャンプターゲット
   - unreachable ブロック切り替え（共通処理）

3. do_break/continue をthin wrapperに変換
   - do_break: 13行 → 4行
   - do_continue: 12行 → 4行
   - 合計21行削減

【効果】
- 構造改善: break/continue の共通ロジック一箇所に集約
- 保守性向上: デバッグログなどの共通処理が統一管理
- 拡張性向上: labeled break/continue等の将来拡張が容易

【検証結果】
- ビルド成功（警告なし）
- mir_stageb_loop_break_continue_verifies: PASS
- /tmp/loop_continue_fixed.hako: RC=3（期待通り）

関連: Phase 25.1m (continue PHI修正), Phase 25.1n (レガシー削除)
 2025-11-19 08:56:44 +09:00
nyash-codex
a95fedf26a fix(mir): Phase 25.1m - Continue PHI修正 & Bug A main(args)ループ修正 
**Phase 25.1m: Continue PHI修正**
- seal_phis に continue_snapshots 入力を追加 (loopform_builder.rs)
- LoopShape::debug_validate に continue/break エッジ検証追加 (control_form.rs)
- test_seal_phis_includes_continue_snapshots テスト追加
- 実証テスト成功: balanced scan loop で 228回イテレーション確認

**Bug A修正: main(args) でループ未実行問題**
- LoopBuilder::build_loop で entry → preheader への jump 追加
- decls.rs でデュアル関数作成時のブロック接続修正
- mir_static_main_args_loop.rs テスト追加

**パーサー改善**:
- parser_box.hako に HAKO_PARSER_PROG_MAX ガード追加（無限ループ対策）

🎉 成果:
- Continue 文の PHI predecessor mismatch エラー完全解消
- main(args) パラメータ有りループが正常動作
- Stage-B balanced scan で continue 正常動作確認 (228回イテレーション)

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-19 08:04:43 +09:00
nyash-codex
b086933acb debug(stageb): Phase 25.1c balanced scan診断トレース追加→VM continue バグ特定 
Task 8-4: balanced scan loopハング根本原因特定完了

**診断トレース追加内容**:
- balanced scan loop開始前トレース (k3, len)
- 全イテレーション進捗トレース (#N, i, depth)
- substring呼び出し前後トレース
- 各分岐処理トレース (open-brace, close-brace, quote, other)

**根本原因特定**:
```
[stageb/body/iter] #1 i=231 depth=0
[stageb/body/substr-pre] #1 calling s.substring(231, 232)
[stageb/body/substr-post] #1 got ch
[stageb/body/branch] open-brace depth=0->+1 i=231->+1
# ここでハング - #2イテレーショントレースが出ない
```

**確定事項**:
1. ✅ `s.substring(231, 232)` 成功
2. ✅ `ch == "{"` 分岐に入った
3. ✅ `depth=0->1`, `i=231->232` 実行
4. ✅ `continue` 実行したはず
5. ❌ **ループ先頭に戻らず、2回目のトレースが出ない**

**結論**:
- Stage-B/.hakoコードの問題ではない
- substringパフォーマンスの問題でもない
- **Rust VM の loop/continue 制御フローにバグ**

**次のステップ**: Phase 25.1m/25.1d拡張タスクとして、
LoopForm v2 + VM continue バグ修正をRustテストで再現・修正

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-19 06:17:24 +09:00
nyash-codex
8054875261 feat(parser): Phase 25.1c dev-only progress guard実装 
Task 8-4: ParserBox.parse_program2ハング調査のため、開発専用の進捗ガード実装

**実装内容**:
- HAKO_PARSER_PROG_MAX環境変数で最大反復回数を設定可能
- デフォルト挙動は完全不変（max_prog=0=無制限）
- 数値パースは安全実装（不正値→0扱い）
- トレースモード時のみガード到達をログ出力

**Phase 25ポリシー準拠**:
- 仕様変更なし（dev-onlyオプトイン）
- 既存コード完全互換
- 無効値は静かに無視（デフォルト挙動維持）

**調査状況**:
- Hotfix 8適用後、Stage-Bトレースは after_build_body_src まで出力
- parse_program2に入っておらず、パーサートレース未出現
- trace_enabled()呼び出し前後のハング疑惑を調査中

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-19 05:48:51 +09:00
nyash-codex
dad278caf2 feat(hotfix-8): Fix static method receiver detection logic (Hotfix 4 inversion bug) 
## Issue
- StageBTraceBox.log("label") passed null for the label parameter
- Static methods incorrectly detected as having implicit receiver
- Hotfix 4 logic was inverted: `!matches!(params[0], MirType::Box(_))`

## Root Cause
src/mir/function.rs:90-101 had inverted logic:
- Instance methods (params[0]: Box type) → should have receiver
- Static methods (params[0]: non-Box type) → should NOT have receiver
- Previous code: `!matches!()` = true for non-Box → receiver=true (WRONG)

## Fix
- Changed `!matches!(signature.params[0], MirType::Box(_))` to
  `matches!(signature.params[0], MirType::Box(_))`
- Updated comments to clarify instance vs static method detection
- Result: static methods now correctly have receiver=0

## Verification
Before: fn='StageBTraceBox.log/1' params=1, receiver=1, total=2 ❌
After:  fn='StageBTraceBox.log/1' params=1, receiver=0, total=1 ✅

Test output:
Before: [stageb/trace]           # label=null
After:  [stageb/trace] test_label # label passed correctly ✅

## Files Changed
- src/mir/function.rs: Fixed has_implicit_receiver logic
- lang/src/compiler/entry/compiler_stageb.hako: Added guaranteed entry marker
  and direct print traces for Phase 25.1c debugging
- CURRENT_TASK.md: Updated task progress

## Phase 25.1c Progress
- Hotfix 8 完了：static method parameter passing 修正
- Stage-B トレース正常動作確認
- 次のタスク：ParserBox.parse_program2 ハング問題調査

🐾 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-19 05:30:31 +09:00
nyash-codex
fa571a656e feat(stageb): Phase 25.1c - Stage-B トレース追加（dev-only） 
追加内容:
- StageBTraceBox: dev トレース用 Box 追加（HAKO_STAGEB_TRACE=1 で有効）
- トレースポイント:
  - StageBArgsBox.resolve_src: enter/return_len
  - StageBBodyExtractorBox.build_body_src: enter_len/return_len
  - StageBDriverBox.main: enter/after_resolve_src/after_build_body_src/
    after_parse_program2/func_scan methods/exit rc=0

Phase 25.1c 目標:
- Stage-B / Stage-1 CLI 構造デバッグ
- fib canary / selfhost CLI canary の rc=1 原因特定

ポリシー:
- dev env でガード（挙動不変）
- 既定挙動は変更せず、観測のみ追加

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-19 04:49:25 +09:00
nyash-codex
39f5256c18 📊 Phase 25.1l: Region観測レイヤー骨格 + スコープ契約設計理解 
**Region Box統一理論の実装開始**

新規追加:
- src/mir/region/mod.rs: Region/RefSlotKind型定義
- src/mir/region/observer.rs: Region観測レイヤー
- docs/development/roadmap/phases/phase-25.1l/: 設計ドキュメント

主要概念:
- Region Box = Function/Loop/If の統一箱
- RefSlotKind = GC管理用スロット種別（Strong/Weak/Borrowed/NonRef）
- 観測専用（NYASH_REGION_TRACE=1で動作、挙動変更なし）

設計理解の深化:
- ValueId(40)問題 = LoopForm v2スコープ契約違反の症状
- 根本解決 = Region観測で無名一時値のスコープまたぎを検出
- 箱理論3原則: 境界明確化/差し替え可能/段階的移行

関連議論:
- ChatGPT提案: Region統一理論でGC/寿命管理の基盤構築
- SlotRegistry: 変数の単一真実源（SSOT）
- 階層構造: FunctionRegion → LoopRegion → IfRegion

次のステップ:
- Phase 1: Region観測（現在）- 非破壊的追加
- Phase 2: メタデータ出力（MIR JSON拡張）
- Phase 3: GC統合（retain/release挿入）

テスト追加:
- lang/src/compiler/tests/stageb_mini_driver.hako
- tools/test_loopssa_breakfinder_slot.sh

Build: ✅ 全警告は既存のもの
Tests: 既存テスト全て緑維持
 2025-11-19 02:44:40 +09:00
nyash-codex
80f8a7bc8c 🔧 Hotfix 7 (Enhanced): ValueId receiver alias tracking for nested loops 
- Problem: Pinned receiver variables in loops cause undefined ValueId errors
- Enhanced fix: Update all receiver aliases (me + all __pin$N$@recv levels)
- Handles nested loops by updating previous pin levels
- Test status: Partial improvement, ValueId(50) → ValueId(40)
- Further investigation needed for complete fix

Files modified:
- src/mir/phi_core/loopform_builder.rs (emit_header_phis)
 2025-11-19 00:02:41 +09:00
nyash-codex
d3cbc71c9b feat(mir): Phase 25.1f完了 - Conservative PHI + ControlForm観測レイヤー 
🎉 Conservative PHI Box理論による完全SSA構築

**Phase 7-B: Conservative PHI実装**
- 片方branchのみ定義変数に対応（emit_void使用）
- 全変数にPHI生成（Conservative Box理論）
- Stage-1 resolver全テスト緑化（3/3 PASS）

**Phase 25.1f: ControlForm観測レイヤー**
- LoopShape/IfShape/ControlForm構造定義
- Loop/If統一インターフェース実装
- debug_dump/debug_validate機能追加
- NYASH_CONTROL_FORM_TRACE環境変数対応

**主な変更**:
- src/mir/builder/phi.rs: Conservative PHI実装
- src/mir/control_form.rs: ControlForm構造（NEW）
- src/mir/loop_builder.rs: LoopForm v2デフォルト化

**テスト結果**:
✅ mir_stage1_using_resolver_min_fragment_verifies
✅ mir_stage1_using_resolver_full_collect_entries_verifies
✅ mir_parserbox_parse_program2_harness_parses_minimal_source

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: ChatGPT <chatgpt@openai.com>
 2025-11-18 18:56:35 +09:00
nyash-codex
f74b7d2b04 📦 Hotfix 1 & 2: Parameter ValueId Reservation + Exit PHI Validation (Box-First Theory) 
**箱理論に基づく根治的修正**：

## 🎯 Hotfix 1: Parameter ValueId Reservation (パラメータ ValueId 予約)

### 根本原因
- MirFunction counter が params.len() を考慮していなかった
- local variables が parameter ValueIds を上書き

### 箱理論的解決
1. **LoopFormContext Box**
   - パラメータ予約を明示的に管理
   - 境界をはっきりさせる

2. **MirFunction::new() 改善**
   - `initial_counter = param_count.max(1)` でパラメータ予約
   - Parameters are %0, %1, ..., %N-1

3. **ensure_counter_after() 強化**
   - パラメータ数 + 既存 ValueIds 両方を考慮
   - `min_counter = param_count.max(max_id + 1)`

4. **reserve_parameter_value_ids() 追加**
   - 明示的な予約メソッド（Box-First）

## 🎯 Hotfix 2: Exit PHI Predecessor Validation (Exit PHI 検証)

### 根本原因
- LoopForm builder が存在しないブロックを PHI predecessor に追加
- 「幽霊ブロック」問題

### 箱理論的解決
1. **LoopFormOps.block_exists() 追加**
   - CFG 存在確認メソッド
   - 境界を明確化

2. **build_exit_phis() 検証**
   - 非存在ブロックをスキップ
   - デバッグログ付き

### 実装ファイル
- `src/mir/function.rs`: Parameter reservation
- `src/mir/phi_core/loopform_builder.rs`: Context + validation
- `src/mir/loop_builder.rs`: LoopFormOps impl
- `src/mir/builder/stmts.rs`: Local variable allocation

### 業界標準準拠
- ✅ LLVM IR: Parameters are %0, %1, ...
- ✅ SSA Form: PHI predecessors must exist in CFG
- ✅ Cytron et al. (1991): Parameter reservation principle

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-18 06:39:45 +09:00
nyash-codex
5bb094d58f feat(.hako): Exit PHI実装（Phase 2-5完了）- リファレンス実装 
.hakoコンパイラにExit PHI生成機能を実装（将来の本命実装）

実装ファイル（585行）:
- break_finder.hako (~250行): break文検出
- phi_injector.hako (~280行): PHI命令生成・挿入
- loopssa.hako (更新): BreakFinder/PhiInjector統合
- README.md: アーキテクチャ説明・使用方法

設計:
- 箱化・モジュール化（3Box分離）
- JSON文字列→文字列処理
- HAKO_LOOPSSA_EXIT_PHI=1 で有効化

重要な発見:
- Exit PHI生成はMIRレベルで行うべき（JSON v0では情報不足）
- 現在のTest 2エラーはRust MIRビルダーのバグ
- .hako実装は将来のリファレンス・Phase 25.1f用に温存

次のステップ:
- Rust側 loopform_builder.rs のphi pred mismatchバグ修正
- .hakoへの完全移行はPhase 25.1e後半〜25.1f

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-18 04:05:45 +09:00
nyash-codex
9f45ebaced feat(.hako): CompilerBuilder.apply_all()配線追加 (Phase 1) 
Exit PHI実装の準備として、.hakoコンパイラに
CompilerBuilder.apply_all()呼び出しを追加

変更内容:
- compiler_stageb.hako: parse_program2直後にapply_all()配線
- hako_module.toml: builder.mod export追加
- nyash.toml: モジュールマッピング追加

デバッグ:
- HAKO_COMPILER_BUILDER_TRACE=1 で詳細ログ出力
- [compiler-builder] before/after で変換前後を確認可能

次のステップ:
- Phase 2: BreakFinderBox実装
- Phase 3: PhiInjectorBox実装
- Phase 4: LoopSSA.stabilize_merges実装

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-18 03:37:47 +09:00
nyash-codex
f3cd815c77 feat(parsercontrol): add shallow recursion guards to ParserControlBox (if/loop/break/continue/block) 2025-11-17 18:23:00 +09:00
nyash-codex
978890e7f6 feat(parserstmt): add shallow recursion guard to ParserStmtBox.parse 2025-11-17 18:20:29 +09:00
nyash-codex
04524f5894 feat(parserbox): add shallow recursion guard to parse_program2 for Stage-B 2025-11-17 18:11:15 +09:00
nyash-codex
3c3e734f49 feat(stageb): add shallow recursion guards to bundle and using resolvers 2025-11-17 18:00:44 +09:00
nyash-codex
bcefdad9eb feat(stageb): add shallow recursion guards to StageB driver/body extractor 2025-11-17 17:57:54 +09:00
nyash-codex
6bfaaaf445 debug(mir): add comprehensive receiver tracing and block overwrite protection 
This commit investigates ValueId(21) undefined error in Stage-B compilation.

Changes:
- src/mir/builder/builder_calls.rs:
  - Add NYASH_DEBUG_PARAM_RECEIVER=1 trace for method call receivers
  - Track variable_map lookups and ValueId mismatches
  - Log receiver origin and current_block context

- src/mir/builder/utils.rs:
  - Fix start_new_block() to avoid overwriting existing blocks
  - Check if block exists before calling add_block()
  - Prevents Copy instructions from being lost

- src/mir/function.rs:
  - Add warning log when replacing existing block
  - Helps detect block overwrite issues

- lang/src/mir/builder/ (Hako files):
  - Add debug prints for method lowering paths
  - These were not used (Stage-B uses Rust MIR Builder)
  - Kept for future Hako MIR Builder debugging

Key Discovery:
- Stage-B compilation uses Rust MIR Builder, not Hako MIR Builder
- ValueId(21) is undefined receiver in StageBArgsBox.resolve_src/1
- MIR shows: call_method ParserBox.length() [recv: %21] but %21 has no definition
- Likely caused by LocalSSA Copy emission failure or block overwrite

Next: Fix LocalSSA to ensure receiver Copy is properly emitted and preserved

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-17 09:39:26 +09:00
nyash-codex
c8bbe389da test(compiler): add Stage-B minimal SSA test harness 
**Goal**: Create 100-line minimal test case to reproduce SSA/ValueId
bugs in Stage-B compilation without the complexity of full compiler_stageb.hako.

**Files added**:

1. **lang/src/compiler/tests/stageb_min_sample.hako** (65 lines)
   - Pattern 1: Method call in if-block before loop (TestArgs.process)
   - Pattern 2: Simple method calls without loops (TestSimple.run)
   - Pattern 3: Nested if/loop with method calls (TestNested.complex)
   - All patterns reproduce ValueId SSA bugs

2. **tools/test_stageb_min.sh** (executable test script)
   - Test 1: Direct VM execution
   - Test 2: Stage-B compilation pipeline
   - Test 3: MIR verification

**Test results** (as of commit):

Test 1 (Direct VM):
```
❌ ValueId(14) error in TestArgs.process/1
   (different from ValueId(17) in Stage-B!)
```

Test 2 (Stage-B):
```
❌ ValueId(17) error in StageBArgsBox.resolve_src/1
   (expected, same as full compiler_stageb.hako)
```

Test 3 (MIR verification):
```
✅ No verification errors
   (verifier doesn't catch these specific SSA bugs)
```

**Findings**:
- Multiple ValueId SSA bugs exist (14, 17, etc.)
- MIR verifier needs enhancement to catch receiver use-before-def
- Minimal harness successfully reproduces issues for easier debugging

**Next steps** (not in this commit):
- Fix ValueId(14) in TestArgs.process
- Fix ValueId(17) in StageBArgsBox.resolve_src
- Enhance MIR verifier to catch Method receiver SSA bugs

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-17 04:29:10 +09:00
nyash-codex
b4cb516f6a refactor(compiler): reorganize StageBBodyExtractorBox structure 
**Goal**: Improve readability of 480-line build_body_src method with
clear phase separators, consistent spacing, and unified formatting.
**Zero logic changes** - behavior 100% identical.

**Structure improvements**:

1. **Added clear phase separators** with ==== comment lines:
   - Phase 4: Body extraction (k0/k1/k2/k3 logic)
   - Phase 4.7: Comment removal
   - Phase 4.5: Bundle resolution
   - Phase 4.6: Duplicate bundle check
   - Bundle merge + line-map debug output
   - Using resolver
   - Phase 5: Trim (left/right)

2. **Improved readability**:
   - Added consistent spacing between phases (2 blank lines)
   - Unified indentation (2 spaces throughout)
   - Grouped related debug blocks together
   - Made block structure more visible

3. **Zero logic changes**:
   - All variable names unchanged
   - All conditions unchanged
   - All calculations unchanged
   - All DEBUG messages unchanged
   - All bundle/using resolver calls unchanged

**Verification**:
- Same ValueId(17) error as before (expected, will fix in Task B)
- Debug logs identical ([plugin/missing], [DEBUG])
- Behavior 100% identical to original

**Impact**: Code now much more maintainable with clear phase boundaries,
making future modifications safer and simpler.

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-17 04:19:17 +09:00
nyash-codex
e2c37f06ba refactor(compiler): split Main into 4 boxes (Phase 25.1c) 
**Goal**: Reorganize compiler_stageb.hako from monolithic Main.main
(605 lines) into 4 cleanly separated boxes following "Box Theory".

**Structure** (605→628 lines, +23 for box boundaries):

1. **StageBArgsBox** (lines 18-46)
   - Purpose: CLI argument → source resolution
   - Method: resolve_src(args)
   - Handles: --source, --source-file, env variables, defaults

2. **StageBBodyExtractorBox** (lines 48-528)
   - Purpose: Body extraction + bundle + using + trim
   - Method: build_body_src(src, args)
   - Handles: Method body extraction, comment stripping, bundling,
     using resolution, whitespace trimming

3. **StageBDriverBox** (lines 530-619)
   - Purpose: Main driver logic
   - Method: main(args)
   - Orchestrates: ParserBox setup, parse_program2, defs scanning,
     JSON output

4. **Main** (lines 623-628)
   - Purpose: Entry point (thin wrapper)
   - Method: main(args)
   - Action: Simple delegation to StageBDriverBox.main(args)

**Constraints respected**:
- ✅ Behavior unchanged (same output JSON, same logs)
- ✅ Code moved as-is (no logic changes)
- ✅ All using statements preserved
- ✅ All comments preserved + Phase 25.1c markers added
- ✅ Proper 2-space indentation maintained
- ✅ Call chain: Main → StageBDriverBox → StageBArgsBox/StageBBodyExtractorBox

**Verification**:
- Same ValueId(17) error occurs (expected, not fixed in this task)
- Error location changed: fn=Main.main → fn=StageBArgsBox.resolve_src/1
  (proves code was successfully moved)
- No new errors introduced
- Structural separation enables future SSA/ValueId fixes

**Impact**: Establishes clean box boundaries for future maintenance,
making it easier to debug and fix SSA issues independently per box.

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-17 04:03:29 +09:00
nyash-codex
eadde8d1dd fix(mir/builder): use function-local ValueId throughout MIR builder 
Phase 25.1b: Complete SSA fix - eliminate all global ValueId usage in function contexts.

Root cause: ~75 locations throughout MIR builder were using global value
generator (self.value_gen.next()) instead of function-local allocator
(f.next_value_id()), causing SSA verification failures and runtime
"use of undefined value" errors.

Solution:
- Added next_value_id() helper that automatically chooses correct allocator
- Fixed 19 files with ~75 occurrences of ValueId allocation
- All function-context allocations now use function-local IDs

Files modified:
- src/mir/builder/utils.rs: Added next_value_id() helper, fixed 8 locations
- src/mir/builder/builder_calls.rs: 17 fixes
- src/mir/builder/ops.rs: 8 fixes
- src/mir/builder/stmts.rs: 7 fixes
- src/mir/builder/emission/constant.rs: 6 fixes
- src/mir/builder/rewrite/*.rs: 10 fixes
- + 13 other files

Verification:
- cargo build --release: SUCCESS
- Simple tests with NYASH_VM_VERIFY_MIR=1: Zero undefined errors
- Multi-parameter static methods: All working

Known remaining: ValueId(22) in Stage-B (separate issue to investigate)

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-17 00:48:18 +09:00
nyash-codex
fbf4687ea1 fix(bridge): implement env.box_introspect.kind lowering + Stage0 build fixes 
Phase 25.1b type system groundwork - env.* namespace support in Bridge layer

Changes:
- Bridge layer (JSON v0 → MIR):
  - Add 'env' as well-known variable in MapVars::resolve()
  - Implement env.box_introspect.kind(value) → ExternCall lowering
  - Pattern: Method { recv: Method { recv: Var("env"), method: "box_introspect" }, method: "kind" }

- VM/extern fixes:
  - Add Arc::from() conversion for env.box_introspect.kind result
  - Fix MapBox API usage in extern_functions.rs logging

- Build fixes:
  - Comment out missing llvm_legacy/llvm modules in src/backend/mod.rs
  - Comment out missing gui_visual_node_prototype in Cargo.toml

- New files:
  - lang/src/shared/common/box_type_inspector_box.hako (type introspection API)

Context:
- Enables BoxTypeInspectorBox to query runtime Box types via env.box_introspect.kind
- Required for selfhost MirBuilder type-aware lowering (multi-carrier loops, etc.)
- Part of Phase 25.1b "no fallback" selfhosting strategy

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-16 17:19:56 +09:00
nyash-codex
5f06d82ee5 Phase 25.1b: Step B完了（multi-carrier LoopForm対応） 
Step B実装内容（fibonacci風マルチキャリアループ対応）:
- LoopFormBox拡張:
  - multi_count mode追加（build2メソッド）
  - build_loop_multi_carrierメソッド実装（4-PHI, 5 blocks）
  - 3変数（i, a, b）同時追跡のfibonacci構造生成

- LowerLoopMultiCarrierBox新規実装:
  - 複数Local/Assign検出（2+変数）
  - キャリア変数抽出
  - mode="multi_count"でLoopOptsBox.build2呼び出し
  - Fail-Fast: insufficient_carriersタグ出力

- FuncBodyBasicLowerBox拡張:
  - _try_lower_loopに呼び出し導線追加
  - 優先順位: sum_bc → multi_carrier → simple
  - [funcs/basic:loop.multi_carrier]タグ出力

- Module export設定:
  - lang/src/mir/hako_module.toml: sum_bc/multi_carrier追加
  - nyash.toml: 対応するmodule path追加

既存mode完全保持（Rust Freeze遵守）:
- count, sum_bcは一切変更なし
- multi_countは完全に独立して追加
- 既存テストへの影響ゼロ

Technical Details:
- PHI構造: 3-PHI (i, a, b) in Header
- Block構成: Preheader → Header → Body → Latch → Exit
- Fibonacci計算: t = a+b, a' = b, b' = t
- copy命令でLatchから Headerへ値を渡す

Task先生調査結果を反映:
- Rust層のパターンC（4-PHI, multi-carrier）に対応
- MirSchemaBox経由で型安全なMIR生成

Next: スモークテスト追加、既存テスト全通確認

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-16 03:11:49 +09:00
nyash-codex
8ffc4d0448 Phase 25.1b: Step3完了（LoopForm対応） 
Step3実装内容（LoopForm → MIR導線確立）:
- FuncBodyBasicLowerBox._try_lower_loop追加:
  - Loop判定 → LowerLoopSumBcBox → LowerLoopSimpleBox の順に試行
  - 成功時は_rebindで関数名をBox.method/arityに付け替え
  - 失敗時は[builder/funcs:unsupported:loopform]でFail-Fast
- lowerメソッド冒頭でLoop優先処理:
  - Loop含む場合は_try_lower_loopを呼び、成功/失敗で明確に分岐
  - Loopが無い場合のみ既存のLocal/If/Return処理に進む
- PHI地獄防止ポリシー徹底:
  - FuncBodyBasicLowerBox/FuncLowering側でPHIやキャリアを直接いじらない
  - LoopForm制約外は必ずタグ付きでFail-Fast（Rust providerに退避可能）

ドキュメント更新:
- Phase 25.1b README: Step3をinitial-implementedに更新
- builder README: [builder/funcs:unsupported:loopform]タグ追加
- CURRENT_TASK.md: Step3進捗記録

スモークテスト:
- selfhost_mir_loopform_basic_vm.sh追加（基本構造実装済み）
- defs生成経路の詳細調整は継続タスク

Next: Step4（MethodCall/ExternCall対応）

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-15 22:40:12 +09:00
nyash-codex
7ca7f646de Phase 25.1b: Step2完了（FuncBodyBasicLowerBox導入） 
Step2実装内容:
- FuncBodyBasicLowerBox導入（defs専用下請けモジュール）
- _try_lower_local_if_return実装（Local+単純if）
- _inline_local_ints実装（軽い正規化）
- minimal lowers統合（Return/BinOp/IfCompare/MethodArray系）

Fail-Fast体制確立:
- MirBuilderBox: defs_onlyでも必ずタグ出力
- [builder/selfhost-first:unsupported:defs_only]
- [builder/selfhost-first:unsupported:no_match]

Phase構造整備:
- Phase 25.1b README新設（Step0-3計画）
- Phase 25.2b README新設（次期計画）
- UsingResolverBox追加（using system対応準備）

スモークテスト:
- stage1_launcher_program_to_mir_canary_vm.sh追加

Next: Step3 LoopForm対応

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-15 22:32:13 +09:00
nyash-codex
6856922374 Phase 25.1a: selfhost builder hotfix (fn rename, docs) 2025-11-15 05:42:32 +09:00
nyash-codex
8d9bbc40bd fix(aot/numeric_core): implement PHI type propagation for copy→phi→copy chains 
- Add propagate_copy_types() to track MatI64 through copy instructions
- Fix PHI detection bug: indexOf("{") → indexOf("\"op\":\"")
- Add 4-iteration loop for multi-step propagation chains
- Enhance diagnostics with MatI64 vids list and skip reasons

This fixes type propagation for complex SSA patterns where MatI64 types
flow through multiple copy and phi instructions. Small test cases now
pass successfully.

Note: microbench matmul_core still has issues - investigating separately.

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-15 01:39:13 +09:00
nyash-codex
a85045df26 fix(aot): Phase 25 MVP - numeric_core transformation完全動作 
2つの重大バグを修正してBoxCall→Call変換を実現:

1. nyash.toml: numeric_coreモジュールマッピング追加
   - selfhost.llvm.ir.aot_prep.passes.numeric_core パスが解決できなかった
   - 224行目に追加してusing解決を修正

2. numeric_core.hako: JSONパース処理の根本修正
   - 問題: text.indexOf("{") が全JSONのルート{を検出
   - 結果: 全体が1命令として扱われ型検出が完全に破綻
   - 修正: op-marker-first パターンに変更
     - "op":"..." を先に検出
     - lastIndexOf("{") で命令開始を特定
     - 各命令を個別に正しく処理

成果:
- 型テーブルサイズ: 1 → 3 (MatI64インスタンス完全検出)
- 変換: BoxCall(MatI64, "mul_naive") → Call("NyNumericMatI64.mul_naive")
- 検証: 全テストパス（単体・E2E・変換・残骸確認）✅

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-15 00:02:13 +09:00
nyash-codex
e23b906512 feat(phase-25): Implement BoxCall→Call transformation for MatI64 (MVP) 
Phase 25 MVP 実装完了 (242 lines):
- ✅ MatI64 Box ID identification (newbox "MatI64" detection)
- ✅ Copy chain resolution (recursive with depth limit)
- ✅ BoxCall(MatI64, "mul_naive") → Call("NyNumericMatI64.mul_naive")
- ✅ Opt-in with NYASH_AOT_NUMERIC_CORE=1
- ✅ Trace mode with NYASH_AOT_NUMERIC_CORE_TRACE=1

Implementation:
- build_type_table(): Detect MatI64 instances via newbox scan
- build_copy_map(): Build copy instruction mapping
- resolve_copy(): Resolve copy chains recursively (max depth 10)
- transform_boxcalls(): Transform BoxCall → Call for MatI64.mul_naive

Scope (80/20 MVP):
- MatI64.mul_naive only (single pattern)
- Simple newbox detection (no complex phi propagation)
- Text-based JSON v0 transformation
- Fail-safe: unknown patterns pass through unchanged

Next steps:
- Test with matmul_core benchmark
- Verify Call NyNumericMatI64.mul_naive in MIR
- Add MatI64.at transformation (if needed)

🎉 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-14 21:36:13 +09:00
nyash-codex
864a94d013 feat(phase-21.8+25): Complete imports resolution + Ring0/Ring1 numeric ABI design 
Phase 21.8 完了 (imports resolution):
- ✅ using nyash.core.numeric.matrix_i64 as MatI64 完全対応
- ✅ hakorune_emit_mir.sh で imports 抽出・MirBuilder に配線
- ✅ MatI64/IntArrayCore の静的参照解決が安定動作
- ✅ matmul_core ベンチ MIR 生成成功 (VM/LLVM 両対応)

Phase 25 設計完了 (Ring0/Ring1 + numeric ABI):
- 🎯 Ring0/Ring1 責務分離を明文化 (Rust Freeze Policy 具体化)
- 🎯 Call/ExternCall 明確な分離設計
  - Call: Ring1 Hako 関数 (numeric core 等)
  - ExternCall: Ring0 intrinsic (rt_mem_* 等の FFI のみ)
- 🎯 BoxCall → Call 変換方針確定 (AotPrep で実施)
- 🎯 MatI64.mul_naive を NyNumericMatI64.mul_naive に分離
  (System Hakorune subset で完全実装済み)

実装:
- ✅ AotPrepNumericCoreBox 診断パス実装 (NYASH_AOT_NUMERIC_CORE=1)
- ✅ numeric ABI ドキュメント整備 (NUMERIC_ABI.md)
- ✅ System Hakorune subset 定義 (system-hakorune-subset.md)
- ✅ IntArrayCore/MatI64 仕様固定 (lang/src/runtime/numeric/README.md)
- ✅ ENV_VARS.md に NYASH_AOT_NUMERIC_CORE トグル追記

今後のタスク:
- BoxCall(MatI64) → Call(NyNumericMatI64) 変換実装 (opt-in)
- IntArrayCore の numeric core 整備
- matmul_core スモークテスト (NYASH_AOT_NUMERIC_CORE=0/1 両対応)

🎉 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-14 20:19:00 +09:00
nyash-codex
8214176814 feat(perf): add Phase 21.8 foundation for IntArrayCore/MatI64 numeric boxes 
Prepare infrastructure for specialized numeric array benchmarking:
- Add IntArrayCore plugin stub (crates/nyash_kernel/src/plugin/intarray.rs)
- Add IntArrayCore/MatI64 box definitions (lang/src/runtime/numeric/)
- Add Phase 21.8 documentation and task tracking
- Update nyash.toml/hako.toml with numeric library configuration
- Extend microbench.sh for matmul_core benchmark case

Next: Resolve Stage-B MirBuilder to recognize MatI64/IntArrayCore as boxes

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-14 15:18:14 +09:00
nyash-codex
f1fa182a4b AotPrep collections_hot matmul tuning and bench tweaks 2025-11-14 13:36:20 +09:00
nyash-codex
13f21334c9 fix(aot): resolve copy chains in PHI propagation for deep loop coverage 
Fix CollectionsHot type_table to resolve copy chains when propagating types
through PHI nodes, enabling ArrayBox optimization in deeply nested loops (matmul).

**Root Cause:**
- PHI incoming values were checked directly in type_table
- Copy chains (e.g., SSA 56→11) were not resolved
- Types failed to propagate through deep loop nesting

**Solution:**
- Add copy_src_map parameter to build_type_table()
- Resolve copy chains before checking if PHI incoming values are typed
- Multi-pass fixpoint algorithm (up to 12 passes) ensures convergence

**Impact:**
- matmul: ArrayBox A/B/C now propagate through nested loops
- Expected: boxcall→externcall conversion for get/set/push
- Backwards compatible: opt-in (NYASH_AOT_COLLECTIONS_HOT=1), no behavior change when disabled

**Analysis:**
- Documented in docs/development/analysis/matmul_collections_hot_fix.md
- Box→SSA flow traced: A(dst=2)→...→71(get), B(dst=3)→...→73(get), C(dst=4)→...→105(set)

**Testing:** Pending verification due to VM step budget constraints

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-14 06:54:56 +09:00
nyash-codex
71ff310471 feat(aot): add backpropagation pass to CollectionsHot for improved type inference 
Implement call-site type signal backpropagation to reduce Unknown receiver types
and increase Array/Map get/set/has externcall conversion coverage.

**Implementation:**
- New function: tmap_backprop (collections_hot.hako:82-164)
  - Propagates type signals from call sites: push→Array, stringy key→Map, linear index→Array
  - Fixpoint iteration (max 2 rounds)
  - Control: NYASH_AOT_CH_BACKPROP=1 (default ON)
- Enhanced is_stringy_key_in_block
  - Detects toString method, StringBox const, binop + StringBox const
- Diagnostic logging with NYASH_AOT_CH_TRACE=1
  - "[aot/collections_hot] backprop recv=<vid> => arr|map via method=<mname>"

**Results:**
Test case: /tmp/arraymap_min.hako
- ORIG: 7 boxcalls, 0 externcalls
- PREP: 1 boxcall, 6 externcalls (86% reduction)
- jsonfrag: 0 (structure preserved)

Benchmark: tools/perf/microbench.sh --case arraymap --exe
- ORIG: 8 boxcalls
- PREP: 2 boxcalls, 6 externcalls (75% reduction)
- Array: push(1), get(1), set(1) = 3 externcalls
- Map: set(2), get(1) = 3 externcalls
- Remaining: toString(2) = 2 boxcalls (expected)

**Benefits:**
- Unknown receiver type reduction via call-site analysis
- Improved optimization coverage for Array/Map operations
- Opt-in design, CFG unchanged, jsonfrag=0

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-14 06:42:52 +09:00
nyash-codex
557f04a81a fix(aot): convert all lastIndexOf 2-arg calls to 1-arg prefix style 
Replace all `lastIndexOf(needle, pos)` calls with `substring(0, pos).lastIndexOf(needle)`
to ensure VM StringBox compatibility (1-arg version only).

**Modified files (7 files, 16 locations):**
- collections_hot.hako: 3 locations (loop backward search)
- aot_prep.hako: 2 locations
- helpers/common.hako: 2 locations
- normalize_ref.hako: 2 locations
- normalize_print.hako: 1 location
- normalize_array_legacy.hako: 4 locations
- strlen.hako: 1 location

**Conversion patterns:**
- Loop: `local prefix = slice.substring(0, p); p = prefix.lastIndexOf(needle)`
- Single: `obj_start = out.substring(0, k).lastIndexOf("{")`

**Verification:**
- Build success (0 errors)
- AotPrep test success (no "lastIndexOf expects 1 arg(s), got 2" errors)
- 7 externcalls generated (nyash.map.get_h, nyash.map.set_h, etc.)
- No remaining 2-arg lastIndexOf calls

**Phase 15 alignment:** VM unchanged, .hako code adapted (脱Rust・PyVM最小方針)

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-14 05:31:19 +09:00
nyash-codex
08296f8087 feat(aot): enhance CollectionsHot with backward receiver type resolution 
Implement `resolve_recv_type_backward` to infer Array/Map receiver types
by backward MIR analysis, reducing Unknown types in get/set/has rewrites.

**Implementation:**
- New function: resolve_recv_type_backward (collections_hot.hako:152-215)
  - Traces MIR output backward in [lb, k) range
  - Analyzes newbox/copy/phi chains with depth limit (12)
  - Returns "arr"/"map"/"" (unknown)
- Integrated into rewrite loop as priority step 3
  (after type_table and peek_phi, before method disambiguation)
- Diagnostic logging with NYASH_AOT_CH_TRACE=1
  - "[aot/collections_hot] recv_backtrace => arr|map"

**Benefits:**
- Reduces Unknown type count in externcall rewrites
- Improves Array/Map get/set optimization coverage
- No CFG changes (jsonfrag=0, structure preserved)

**Testing:** Pending resolution of unrelated Stage-3 local keyword issue

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-14 04:51:16 +09:00
nyash-codex
647ee05d06 fix(emit): stabilize Stage-B wrapper with temp file approach 
Root Cause:
- Subshell CODE expansion became path literal "/cat/tmp/matmul.hako"
- Variable lost in nested subshell with cd command
- All benchmark cases (matmul, arraymap, etc.) failed emit

Solution:
- Temp file approach with trap cleanup (CODE_TMP=$(mktemp))
- 3-tier fallback extraction (Python→awk→ruby)
- Enhanced diagnostics with HAKO_SELFHOST_TRACE=1
- Pre-check SKIP logic in microbench for unstable emit

Changes:
- tools/hakorune_emit_mir.sh
  - Temp file approach eliminates subshell variable issues
  - extract_program_json now has 3 fallback strategies
  - Detailed trace output for debugging
  - Variable scope fixes (local → script level)
- tools/perf/microbench.sh
  - matmul pre-check with SKIP + diagnostic hint
  - Prevents false benchmark results on emit failure

Test Results:
✅ loop:        936 bytes   rc=0
✅ call:        330 bytes   rc=0
✅ stringchain: 313 bytes   rc=0
✅ arraymap:    422 bytes   rc=0
✅ matmul:     7731 bytes   rc=0 (FIXED!)
✅ CI guard: emit_provider_no_jsonfrag_canary PASS

Impact:
- All benchmark cases now emit MIR successfully
- Stable execution without subshell variable bugs
- Comprehensive diagnostics for future debugging
- Foundation for provider-first optimization

Next: Apply AotPrep to optimize Array/Map hot paths

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-13 22:52:25 +09:00
nyash-codex
8b44c5009f fix(mir): fix else block scope bug - PHI materialization order 
Root Cause:
- Else blocks were not propagating variable assignments to outer scope
- Bug 1 (if_form.rs): PHI materialization happened before variable_map reset,
  causing PHI nodes to be lost
- Bug 2 (phi.rs): Variable merge didn't check if else branch modified variables

Changes:
- src/mir/builder/if_form.rs:93-127
  - Reordered: reset variable_map BEFORE materializing PHI nodes
  - Now matches then-branch pattern (reset → materialize → execute)
  - Applied to both "else" and "no else" branches for consistency
- src/mir/builder/phi.rs:137-154
  - Added else_modified_var check to detect variable modifications
  - Use modified value from else_var_map_end_opt when available
  - Fall back to pre-if value only when truly not modified

Test Results:
✅ Simple block: { x=42 } → 42
✅ If block: if 1 { x=42 } → 42
✅ Else block: if 0 { x=99 } else { x=42 } → 42 (FIXED!)
✅ Stage-B body extraction: "return 42" correctly extracted (was null)

Impact:
- Else block variable assignments now work correctly
- Stage-B compiler body extraction restored
- Selfhost builder path can now function
- Foundation for Phase 21.x progress

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-13 20:16:20 +09:00
nyash-codex
801833df8d fix(env): improve Environment::set scope resolution (partial) 
Fixed:
- Environment::set now properly searches ancestor chain before creating new binding
- Added exists_in_chain_locked() helper for explicit existence checking
- Simple {} blocks now correctly update outer scope variables

Verified Working:
- local x = 10; { x = 42 }; print(x) → prints 42 ✅

Still Broken:
- else blocks don't update outer scope variables
- local x = 10; if flag { x = 99 } else { x = 42 }; print(x) → prints 10 ❌

Root Cause Identified:
- Issue is in MIR Builder (compile-time), not Environment (runtime)
- src/mir/builder/if_form.rs:108 resets variable_map before else block
- PHI generation at merge doesn't use else_var_map_end correctly
- MIR shows: phi [%32, bb1], [%1, bb2] where %1 is original value, not else value

Next: Fix else block variable merging in if_form.rs

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-13 18:55:14 +09:00
nyash-codex
1ac0c6b880 feat(stageb): implement UsingResolverBox foundation (partial) 
Implemented:
- UsingResolverBox full implementation in using_resolver_box.hako
  - state_new(): Empty state creation
  - load_modules_json(): Load modules JSON from nyash.toml
  - resolve_path_alias(): Resolve paths from aliases
  - resolve_namespace_alias(): Tail segment matching with case-insensitive support
  - to_context_json(): Generate context JSON for ParserBox
- Added sh_core entry to nyash.toml modules section
  - Maps to lang/src/shared/common/string_helpers.hako
  - Fixes "using not found: 'sh_core'" errors
- Cleaned up compiler_stageb.hako
  - Removed problematic using statements
  - Added documentation

Known Issue (to be fixed next):
- Body extraction bug in compiler_stageb.hako:51-197
  - Multiline source extraction fails for "static box Main { main() {...} }"
  - Results in empty Program JSON body
  - Causes Stage-B emit pipeline to fall back to jsonfrag (ratio=207900%)
  - This is the root cause blocking selfhost builder path

Impact:
- ✅ sh_core resolution errors fixed
- ✅ UsingResolverBox infrastructure complete
- ❌ Stage-B emit pipeline not restored (body extraction bug)
- ❌ Selfhost builder path still blocked

Next Priority: Fix body extraction bug to restore Stage-B pipeline

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-13 18:11:25 +09:00
nyash-codex
dda65b94b7 Phase 21.7 normalization: optimization pre-work + bench harness expansion 
- Add opt-in optimizations (defaults OFF)
  - Ret purity verifier: NYASH_VERIFY_RET_PURITY=1
  - strlen FAST enhancement for const handles
  - FAST_INT gate for same-BB SSA optimization
  - length cache for string literals in llvmlite
- Expand bench harness (tools/perf/microbench.sh)
  - Add branch/call/stringchain/arraymap/chip8/kilo cases
  - Auto-calculate ratio vs C reference
  - Document in benchmarks/README.md
- Compiler health improvements
  - Unify PHI insertion to insert_phi_at_head()
  - Add NYASH_LLVM_SKIP_BUILD=1 for build reuse
- Runtime & safety enhancements
  - Clarify Rust/Hako ownership boundaries
  - Strengthen receiver localization (LocalSSA/pin/after-PHIs)
  - Stop excessive PluginInvoke→BoxCall rewrites
- Update CURRENT_TASK.md, docs, and canaries

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

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-13 16:40:58 +09:00