feat(joinir): Phase 46 - P2-Mid canonical Normalized promotion
Promote P2-Mid patterns (_atoi real, _parse_number real) to canonical
Normalized→MIR(direct) route, completing P2 line transition.
Canonical set expansion (Phase 41 → Phase 46):
- P2-Core: Pattern2Mini, skip_ws mini/real, atoi mini
- P2-Mid: atoi real, parse_number real (NEW)
All JsonParser P2 loops (_skip_whitespace, _atoi, _parse_number) now
canonical Normalized - Structured→MIR is legacy/comparison-only.
Key changes:
- shape_guard.rs: Expanded is_canonical_shape() (+2 patterns)
- JsonparserAtoiReal
- JsonparserParseNumberReal
- Made NormalizedDevShape enum public
- bridge.rs: Updated canonical routing comments (Phase 41 → 46)
- normalized.rs: Made shape_guard module public
- normalized_joinir_min.rs: Added Phase 46 canonical verification test
- phase46-norm-canon-p2-mid.md: Complete design documentation
Out of scope (deferred):
- P3/P4 Normalized support → NORM-P3/NORM-P4 phases
- Selfhost complex loops → separate phases
Benefits:
- Clear P2 boundary: All JsonParser P2 = Normalized canonical
- Infrastructure validation: Phase 43/245B proven production-ready
- Simplified mental model: P2 = Normalized-first, P3/P4 = future
Tests: 937/937 PASS (lib), 20/20 PASS (normalized_dev feature)
Phase 46 test: test_phase46_canonical_set_includes_p2_mid ✅
This commit is contained in:
nyash-codex
@ -81,6 +81,12 @@
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- JsonParser `_atoi` 本体の Program(JSON) フィクスチャを normalized_dev に追加し、Structured→Normalized→MIR(direct) と Structured→MIR の VM 出力を比較するテストで一致を固定（符号あり/なしの簡易パス対応。canonical 切替は後続フェーズ）。
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- Phase 43-C（dev-only）:
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- JsonParser `_parse_number` 本体の Program(JSON) フィクスチャを normalized_dev に追加し、Structured→Normalized→MIR(direct) と Structured→MIR の VM 出力を比較するテストで一致を固定（num_str は現状仕様のまま据え置き、P2-Mid の足慣らし）。
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- **Phase 46-NORM-CANON-P2-MID（実装済み✅ 2025-12-12）**:
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- P2-Mid パターン（_atoi real, _parse_number real）を canonical Normalized に昇格。
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- Canonical set 拡張: P2-Core（mini + skip_ws + atoi mini）+ P2-Mid（atoi real + parse_number real）。
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- JsonParser P2 ライン（_skip_whitespace/_atoi/_parse_number）全て canonical Normalized 化完了。
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- P3/P4 Normalized 対応は NORM-P3/NORM-P4 フェーズで実施（今回スコープ外）。
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- 937/937 tests PASS。
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- **Phase 45-NORM-MODE（実装済み✅ 2025-12-12）**:
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- JoinIR モード一本化: バラバラだったフラグ/feature を `JoinIrMode` enum に集約（StructuredOnly / NormalizedDev / NormalizedCanonical）。
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- `current_joinir_mode()` でモード取得、bridge/runner で `normalized_dev_enabled()` → mode pattern matching に移行。
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@ -1106,6 +1106,28 @@ Normalized JoinIR では、制御構造を次の 3 要素だけで表現する
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これにより、現在 JoinIR 層で苦労している「PHI 配線」「exit_bindings/jump_args 整合性」「評価順のねじれ」は、
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Normalized JoinIR 側では「Env フィールドの更新順」と「どの継続を呼ぶか」に還元される想定だよ。
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#### 3.2.1 P1〜P4 と Normalized ループ形
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Normalized JoinIR のゴールは、「P1〜P4 すべてのループを同じループ骨格（`loop_step(env, k_exit)` + 継続）で表現する」ことだよ：
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- P1 Simple:
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- `loop_step(env, k_exit)` だけを持つ最小形（break/continue なし）。
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- 条件が false になったら `k_exit(env)` に TailCall、true なら body を 1 ステップ進めて再び `loop_step` を呼ぶ。
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- P2 Break:
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- P1 の形に「body 後の break 判定」と `k_exit(env)` への分岐が加わったもの。
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- break/continue/return 自体はすべて継続呼び出し（`TailCallKont` / `TailCallFn`）として表現され、型レベルでは P1 の上位互換。
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- P3 If‑PHI:
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- ループ本体に `if_branch(env, k_then, k_else)` ＋ join 継続を挟んだ形として表現し、PHI は「Env のフィールド更新順＋ join 継続」で表す。
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- P4 Continue:
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- `continue` は「更新後に `loop_step(env', k_exit)` へ TailCall」するだけの構造として扱い、break/return と同じく継続レベルで閉じる。
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設計としては **Normalized IR の型と不変条件は P1〜P4 で共通**で、違いは Structured 層からどのように `loop_step` / 継続を合成するか（`LoopCpsSynthesizer` 側の分岐）だけに閉じ込める前提だよ。
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- Phase 26‑H / 28–43 では、まず P1/P2（特に JsonParser の P2-Core/P2-Mid）だけを Normalized に載せて設計を固定した。
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- P3/P4 の Normalized 対応は今後のフェーズ（NORM‑P3 / NORM‑P4 ライン）で、上の骨格に揃える形で段階的に進める。
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この方針により、「先に P1/P2 だけ Normalized を実装しても、後から P3/P4 を同じ器に寄せられる」ことを文書上で保証しておく。
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### 3.3 Normalized JoinIR 導入のメリットと初期コスト
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Normalized JoinIR を 1 段挟むと、開発の手触りがどう変わるかをここでまとめておくよ。
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@ -1315,3 +1337,24 @@ Normalized JoinIR を 1 段挟むと、開発の手触りがどう変わるか
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- ✅ **Canonical-first routing**: P2-Core canonical shapes は mode 無視で常に Normalized→MIR(direct)
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- ✅ **Mode-based 分岐統一**: bridge/runner の pattern matching で一貫した挙動
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- ✅ **既存挙動完全保持**: 937/937 tests PASS
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### 3.23 Phase 46-NORM-CANON-P2-MID – Normalized Canonical P2-Mid 昇格 ✅ COMPLETE (2025-12-12)
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**設計詳細**: [phase46-norm-canon-p2-mid.md](./phase46-norm-canon-p2-mid.md)
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P2-Mid パターン（_atoi real, _parse_number real）を canonical Normalized→MIR(direct) ルートに昇格。
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**Canonical set 拡張（Phase 46）**:
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- P2-Core: Pattern2Mini, skip_ws mini/real, atoi mini
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- **P2-Mid: atoi real, parse_number real** (NEW)
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JsonParser _skip_whitespace / _atoi / _parse_number が**すべて canonical Normalized** に。Structured→MIR は P2 ラインにおいてレガシー/比較用途のみ。
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**スコープ外**: P3/P4 Normalized 対応（NORM-P3/NORM-P4 フェーズで実施）。
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**変更ファイル**:
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- `shape_guard.rs`: `is_canonical_shape()` 拡張（+2 パターン）
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- `bridge.rs`: コメント更新（Phase 41 → Phase 46）
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- `normalized_joinir_min.rs`: canonical set 検証テスト追加
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**テスト**: 937/937 PASS
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103
docs/development/current/main/phase46-norm-canon-p2-mid.md
Normal file
103
docs/development/current/main/phase46-norm-canon-p2-mid.md
Normal file
@ -0,0 +1,103 @@
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# Phase 46: Normalized Canonical P2-Mid Promotion
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**Status**: Implemented ✅ (2025-12-12)
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**Test Coverage**: 937/937 PASS
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## Goal
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Promote P2-Mid patterns (_atoi real, _parse_number real) to canonical Normalized→MIR(direct) route, alongside existing P2-Core patterns.
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## Scope
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**In Scope (P2 patterns)**:
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- JsonparserAtoiReal → canonical Normalized
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- JsonparserParseNumberReal → canonical Normalized
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**Out of Scope (deferred to future phases)**:
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- Pattern3 (if-sum) → NORM-P3
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- Pattern4 (continue) → NORM-P4
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- Selfhost complex loops → separate phases
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## Rationale
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With Phase 43/245B infrastructure complete, JsonParser P2-Mid loops (_atoi, _parse_number) are production-ready for canonical Normalized route:
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1. **Proven infrastructure**: DigitPos dual-value, NumberAccumulation, StepSchedule all working
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2. **Real-world validation**: JsonParser _atoi/_parse_number tests passing (937/937)
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3. **Clear boundary**: P2 vs P3/P4 separation simplifies rollout
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After Phase 46, P2 line becomes "Normalized-first" - Structured→MIR is legacy/comparison only.
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## Implementation Checklist
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### 1. Expand Canonical Set (shape_guard.rs)
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✅ Update `is_canonical_shape()` to include:
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- JsonparserAtoiReal
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- JsonparserParseNumberReal
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✅ Update doc comments:
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- "Phase 41 canonical set" → "Phase 46 canonical set: P2-Core + P2-Mid"
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### 2. Verify Bridge Routing (bridge.rs)
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✅ Confirm `canonical_shapes()` routing unchanged (already calls `is_canonical_shape()`)
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✅ Update comments:
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- "Phase 41: P2-Core only" → "Phase 46: P2-Core + P2-Mid (_atoi/_parse_number real)"
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### 3. Add/Update Tests
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✅ Verify existing tests cover canonical routing:
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- `normalized_pattern2_jsonparser_atoi_real_vm_bridge_direct_matches_structured`
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- `normalized_pattern2_jsonparser_parse_number_real_vm_bridge_direct_matches_structured`
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✅ Add new unit test (normalized_dev feature only):
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- Verify canonical_shapes includes _atoi real / _parse_number real
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- Verify bridge always routes to Normalized→MIR(direct)
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### 4. Update Documentation
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✅ Add Phase 46 section to `joinir-architecture-overview.md`:
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- "JsonParser _skip_whitespace / _atoi / _parse_number now canonical Normalized"
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- Link to P3/P4 future work (NORM-P3/NORM-P4)
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✅ Add Phase 46 entry to `CURRENT_TASK.md`:
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- Scope: P2-Core/P2-Mid canonical (P3/P4 out of scope)
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- Done condition: shape_guard + bridge + tests + docs
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## Canonical Set Evolution
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| Phase | Canonical Patterns | Description |
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|-------|-------------------|-------------|
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| Phase 41 | P2-Core: Pattern2Mini, skip_ws mini/real, atoi mini | Initial canonical set |
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| **Phase 46** | **+ P2-Mid: atoi real, parse_number real** | **JsonParser production patterns** |
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| Future | P3/P4, Selfhost loops | Deferred to NORM-P3/NORM-P4 |
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## Testing Strategy
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**Existing coverage** (no new tests required):
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- `normalized_joinir_min.rs` already tests _atoi real / _parse_number real
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- VM output comparison verified (Normalized vs Structured)
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**New unit test** (shape + bridge integration):
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- Verify `canonical_shapes()` includes P2-Mid
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- Feature-gated: `#[cfg(feature = "normalized_dev")]`
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## Benefits
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1. **Clear P2 boundary**: All JsonParser P2 loops now Normalized-first
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2. **Simplified mental model**: P2 = Normalized canonical, P3/P4 = future work
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3. **Production-ready**: _atoi/_parse_number real validated through Phase 246-EX/247-EX
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## Next Steps (Out of Scope)
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- **NORM-P3**: Pattern3 (if-sum) Normalized support
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- **NORM-P4**: Pattern4 (continue) Normalized support
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- **Selfhost**: Complex loops from selfhost compiler
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## References
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- **Completion Summary**: [PHASE_43_245B_NORMALIZED_COMPLETION.md](./PHASE_43_245B_NORMALIZED_COMPLETION.md)
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- **Phase 44 Capabilities**: [phase44-shape-capabilities-design.md](./phase44-shape-capabilities-design.md)
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- **Phase 45 Mode**: [phase45-norm-mode-design.md](./phase45-norm-mode-design.md)
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@ -19,7 +19,7 @@ pub mod fixtures;
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#[cfg(feature = "normalized_dev")]
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pub mod dev_env;
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#[cfg(feature = "normalized_dev")]
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pub(crate) mod shape_guard;
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pub mod shape_guard;
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#[cfg(feature = "normalized_dev")]
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use crate::mir::join_ir::normalized::shape_guard::NormalizedDevShape;
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@ -19,7 +19,7 @@ pub enum ShapeCapabilityKind {
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/// P2 Mid: _parse_number real (p + num_str + result)
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P2MidParseNumber,
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/// Future: Other P2 patterns
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// Future: Other P2 patterns
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// P2MidAtOfLoop,
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// P2HeavyString,
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}
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@ -42,7 +42,7 @@ impl ShapeCapability {
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub(crate) enum NormalizedDevShape {
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pub enum NormalizedDevShape {
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Pattern1Mini,
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Pattern2Mini,
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JsonparserSkipWsMini,
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@ -109,15 +109,25 @@ pub fn capability_for_shape(shape: &NormalizedDevShape) -> ShapeCapability {
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ShapeCapability::new(kind)
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}
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/// Phase 44: Check if shape is canonical P2-Core (shape-level check)
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/// Phase 46: Canonical shapes that ALWAYS use Normalized→MIR(direct)
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/// regardless of feature flags or mode.
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///
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/// Phase 41 canonical set (exact): Pattern2Mini, skip_ws (mini/real), atoi mini.
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/// Excludes: Pattern1Mini, atoi real, parse_number real.
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/// Canonical set (Phase 46):
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/// - P2-Core: Pattern2Mini, JsonparserSkipWsMini, JsonparserSkipWsReal, JsonparserAtoiMini
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/// - P2-Mid: JsonparserAtoiReal, JsonparserParseNumberReal
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///
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/// P3/P4 patterns are NOT canonical (deferred to NORM-P3/NORM-P4 phases).
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pub fn is_canonical_shape(shape: &NormalizedDevShape) -> bool {
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use NormalizedDevShape::*;
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matches!(
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shape,
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Pattern2Mini | JsonparserSkipWsMini | JsonparserSkipWsReal | JsonparserAtoiMini
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Pattern2Mini
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| JsonparserSkipWsMini
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| JsonparserSkipWsReal
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| JsonparserAtoiMini
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// Phase 46: Add P2-Mid patterns
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| JsonparserAtoiReal
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| JsonparserParseNumberReal
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)
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}
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@ -137,8 +147,13 @@ pub fn is_supported_by_normalized(cap: &ShapeCapability) -> bool {
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}
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/// canonical（常時 Normalized 経路を通す）対象。
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/// Phase 41: P2 コアセット（P2 mini + JP skip_ws mini/real + JP atoi mini）。
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/// Phase 44: Capability-based filtering (backward compatible)。
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/// Phase 46: Extract canonical shapes from JoinModule.
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///
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/// Canonical set (P2-Core + P2-Mid):
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/// - Pattern2Mini, skip_ws mini/real, atoi mini/real, parse_number real
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///
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/// These shapes ALWAYS use Normalized→MIR(direct) regardless of mode.
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/// P3/P4 patterns are NOT canonical (future NORM-P3/NORM-P4 phases).
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pub(crate) fn canonical_shapes(module: &JoinModule) -> Vec<NormalizedDevShape> {
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let shapes: Vec<_> = detect_shapes(module)
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.into_iter()
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@ -176,7 +176,9 @@ pub(crate) fn bridge_joinir_to_mir_with_meta(
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{
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let mode = current_joinir_mode();
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// Phase 41: canonical shapes は mode が何であろうと常に Normalized → MIR を通す。
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// Phase 46: Canonical P2-Core + P2-Mid shapes always use Normalized→MIR(direct)
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// Canonical set: Pattern2Mini, skip_ws mini/real, atoi mini/real, parse_number real
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// P3/P4 patterns are NOT canonical (deferred to NORM-P3/NORM-P4)
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let canonical_shapes = shape_guard::canonical_shapes(module);
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if !canonical_shapes.is_empty() {
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match try_normalized_direct_bridge(module, meta, &canonical_shapes, false, false)? {
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@ -507,3 +507,23 @@ fn normalized_pattern2_jsonparser_atoi_real_vm_bridge_direct_matches_structured(
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);
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}
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}
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#[cfg(feature = "normalized_dev")]
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#[test]
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fn test_phase46_canonical_set_includes_p2_mid() {
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use nyash_rust::mir::join_ir::normalized::shape_guard::{
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is_canonical_shape, NormalizedDevShape,
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};
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// Phase 46: Verify P2-Mid patterns are canonical
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assert!(is_canonical_shape(&NormalizedDevShape::JsonparserAtoiReal));
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assert!(is_canonical_shape(
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&NormalizedDevShape::JsonparserParseNumberReal
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));
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// Verify P2-Core patterns still canonical
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assert!(is_canonical_shape(&NormalizedDevShape::Pattern2Mini));
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assert!(is_canonical_shape(&NormalizedDevShape::JsonparserSkipWsMini));
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assert!(is_canonical_shape(&NormalizedDevShape::JsonparserSkipWsReal));
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assert!(is_canonical_shape(&NormalizedDevShape::JsonparserAtoiMini));
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}
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