Added type and skeleton infrastructure for function-scoped variable
capture, preparing for Phase 200-B integration with ConditionEnv.
New Types:
- CapturedVar: { name, host_id, is_immutable }
- CapturedEnv: Collection of captured variables
- ParamRole: { LoopParam, Condition, Carrier, ExprResult }
New Functions (Skeletons):
- analyze_captured_vars(): Detects function-scoped "constants"
- build_with_captures(): ConditionEnvBuilder v2 entry point
- add_param_with_role(): Role-based parameter routing
New File:
- src/mir/loop_pattern_detection/function_scope_capture.rs
Design Principles:
- Infra only: Types and skeletons, no behavior changes
- Existing behavior maintained: All current loops work identically
- Box-first: New responsibilities in new file
- Documentation: Future implementation plans in code comments
Test Results:
- 6 new unit tests (function_scope_capture: 3, param_role: 3)
- All 804 existing tests PASS (0 regressions)
Next: Phase 200-B (actual capture detection and integration)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
