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3 Commits

Author SHA1 Message Date
tomoaki
3ef929df53 docs(normalization): Update README for Phase 142 P0 
- Document statement-level normalization unit change
- Add Phase 142 P0 section to Pattern Detection
- Mark Phase 132-135 patterns as LEGACY
- Update suffix_router description
- Clarify LoopWithPost deprecation status

Phase 142 P0: Normalization unit changed from "block suffix" to "statement"

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-19 04:40:35 +09:00
nyash-codex
91c7dfbf0b refactor(normalization): Phase 135 P0 - Extend plan to zero post-loop assigns 
Generalize NormalizationPlan suffix detection to accept zero post-loop assignments:

Goal: Improve entry point consistency by allowing `loop + assign* + return` (N >= 0)

Implementation:
- Modified plan_box.rs detection logic (only file changed)
- Removed `post_assign_count >= 1` requirement
- Unified Phase 131 (loop + return) and Phase 132-133 (loop + assign+ + return) paths

Changes:
- src/mir/builder/control_flow/normalization/plan_box.rs:
  - Removed assignment count constraint
  - Unified pattern detection: `loop + assign* + return` (N >= 0)
- apps/tests/phase135_loop_true_break_once_post_empty_return_min.hako (new fixture)
- tools/smokes/v2/profiles/integration/apps/phase135_*.sh (new smoke tests)

Pattern support:
- Phase 131/135: loop + return only (consumed: 2, post_assign_count: 0) ✅
- Phase 132: loop + 1 assign + return (consumed: 3, post_assign_count: 1) ✅
- Phase 133: loop + N assigns + return (consumed: 2+N, post_assign_count: N) ✅

Design principles maintained:
- **Minimal change**: Only plan_box.rs modified (execute_box unchanged)
- **SSOT**: Detection logic centralized in plan_box.rs
- **Box-First**: Responsibility separation preserved (Plan/Execute)

Test results:
- Unit tests (plan_box): 9/9 PASS (2 new tests added)
- Phase 135 VM/LLVM EXE: PASS (exit code 1)
- Phase 131 regression: 2/2 PASS (path now unified)
- Phase 133 regression: 2/2 PASS
- cargo test --lib: PASS

Benefits:
- Unified entry point for all loop + post patterns
- Easier maintenance (single detection logic)
- Future extensibility (easy to add new patterns)
- Clear separation of Phase 131 and Phase 132-135 paths

Default behavior unchanged: Dev-only guard maintained

Related: Phase 135 normalization pattern consistency improvement

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-18 22:46:32 +09:00
nyash-codex
f4ab5ca5f4 refactor(control_flow): Phase 134 P0 - Normalization entry point SSOT 
Consolidate dual entry points into unified NormalizationPlan system:

Problem:
- Dual entry points: try_normalized_shadow() + suffix_router_box
- ~220 lines of duplicated pattern detection logic
- Maintenance burden: changes required in two places

Solution:
- New normalization module with Box-First architecture
- NormalizationPlanBox: Single source of truth for pattern detection
- NormalizationExecuteBox: Single source of truth for execution

Implementation:
- src/mir/builder/control_flow/normalization/ (new module)
  - README.md: Design contract (SSOT)
  - plan.rs: NormalizationPlan data structure
  - plan_box.rs: Pattern detection (7 unit tests)
  - execute_box.rs: Execution logic
  - mod.rs: Module integration

Refactored files:
- routing.rs::try_normalized_shadow(): 165 → 87 lines (-78 lines)
- suffix_router_box::try_lower_loop_suffix(): 258 → 116 lines (-142 lines)

Pattern support maintained:
- Phase 131: loop(true) only (consumed: 1)
- Phase 132: loop + single post (consumed: 3)
- Phase 133: loop + multiple post (consumed: 2+N)

Box-First principles:
- Plan Box: Detection responsibility only
- Execute Box: Execution responsibility only
- README.md: Contract documentation (SSOT)
- Clear separation enables independent testing

Test results:
- cargo test --lib: 1186 PASS (10 new tests added)
- Phase 133 VM/LLVM EXE: PASS (exit code 6)
- Phase 132 LLVM EXE: PASS (exit code 3)
- Phase 131 LLVM EXE: PASS (exit code 1)

Benefits:
- Code duplication eliminated (~220 lines)
- Single source of truth for normalization decisions
- Improved maintainability and testability
- Future-proof extensibility (easy to add new patterns)

Default behavior unchanged: Dev-only guard maintained

Related: Phase 134 normalization infrastructure improvement

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-18 22:29:29 +09:00