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refactor(mir): Extract CompilationContext from MirBuilder (Phase 136 follow-up 7/7)
## Summary
Extracted compilation-related fields into dedicated CompilationContext struct,
completing all 7 steps of the Context Box refactoring plan. This is the final
major context extraction, consolidating 15 compilation-specific fields.
## Changes
- NEW: src/mir/builder/compilation_context.rs (435 lines, 15 fields)
- Modified: src/mir/builder.rs (added compilation_ctx field + sync helpers)
- Updated: phase-136-context-box-progress.md (7/7 complete)
- Created: step-7-compilation-context-summary.md (detailed documentation)
## Extracted Fields (15 total)
- compilation_context - Box compilation context
- current_static_box - Currently compiling static box name
- user_defined_boxes - User-defined box registry
- reserved_value_ids - Reserved ValueIds (for PHI nodes)
- fn_body_ast - Function body AST (for capture analysis)
- weak_fields_by_box - Weak field registry
- property_getters_by_box - Property getter registry
- field_origin_class - Field origin tracking
- field_origin_by_box - Class-level origin
- static_method_index - Static method index
- method_tail_index - Method tail fast lookup
- method_tail_index_source_len - Source size snapshot
- type_registry - Unified type information
- current_slot_registry - Function-scope SlotRegistry
- plugin_method_sigs - Plugin method signatures
## Tests
- cargo test --release --lib: 1029/1033 passed (4 pre-existing failures)
- phase135_trim_mir_verify.sh: PASS
- Backward compatibility: 100% maintained (deprecated fields synced)
## Phase 136 Context Extraction: Complete! ✅
Total: 7 contexts, 36 fields extracted, 1086 lines of new modules
- ✅ Step 1: TypeContext (3 fields, 130 lines)
- ✅ Step 2: CoreContext (5 fields, 112 lines)
- ✅ Step 3: ScopeContext (7 fields, 141 lines)
- ✅ Step 4: BindingContext (1 field, 63 lines)
- ✅ Step 5: VariableContext (1 field, 85 lines)
- ✅ Step 6: MetadataContext (4 fields, 120 lines)
- ✅ Step 7: CompilationContext (15 fields, 435 lines)
## Next Phase: Legacy Field Removal
Phase 2 will remove all 36 deprecated fields from MirBuilder,
eliminating 469 deprecation warnings and reducing builder.rs from
1472 → ~800-900 lines (500-600 line reduction).
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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2025-12-15 22:17:38 +09:00 |
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