hakorune/docs/archive/phases/phase-72-73/README.md

# Phase 72-73 Archive (ENV 使用状況棚卸し)

Status: Historical  
Scope: ENV/JoinIR 整理に関する棚卸しメモ（Phase 72-73）。
-												refactor(joinir): Phase 244 - ConditionLoweringBox trait unification

Unify condition lowering logic across Pattern 2/4 with trait-based API.

New infrastructure:
- condition_lowering_box.rs: ConditionLoweringBox trait + ConditionContext (293 lines)
- ExprLowerer implements ConditionLoweringBox trait (+51 lines)

Pattern migrations:
- Pattern 2 (loop_with_break_minimal.rs): Use trait API
- Pattern 4 (loop_with_continue_minimal.rs): Use trait API

Benefits:
- Unified condition lowering interface
- Extensible for future lowering strategies
- Clean API boundary between patterns and lowering logic
- Zero code duplication

Test results: 911/911 PASS (+2 new tests)

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

											
										
										
											2025-12-11 02:35:31 +09:00
+								# Phase 72-73 Archive (ENV 使用状況棚卸し)
 								Status: Historical
 								Scope: ENV/JoinIR 整理に関する棚卸しメモ（Phase 72-73）。