Break down monolithic function_scope_capture.rs into 4 focused Box-First modules:
**File structure**:
- mod.rs (57 lines): Public API and module organization
- types.rs (110 lines): CapturedVar, CapturedEnv type definitions
- helpers.rs (411 lines): 11 helper functions for AST analysis
- analyzers.rs (1015 lines): Core analysis functions and FunctionScopeCaptureAnalyzer
**Separation of concerns**:
- types.rs: Pure data structures
- helpers.rs: Reusable utility functions (find_stmt_index, ast_matches, etc.)
- analyzers.rs: High-level analysis logic and orchestration
- mod.rs: Clean public API
**Benefits**:
- Single Responsibility Principle: Each module has one clear purpose
- Maintainability: ~400 line modules instead of 1588 line monolith
- Testability: 12 tests organized by module
- Box-First design: Clear separation with well-defined boundaries
**Verification**:
- 937/937 tests PASS (no regression)
- cargo build --release succeeds
- All docs and comments preserved
- No functional changes
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Change from string return ("PASS"/"FAIL") to numeric RC (0=success, 1=fail)
- Add print("result = N") for stdout verification
- Update comments to reflect new test format
This makes test results verifiable via both stdout AND return code,
avoiding future confusion about RC interpretation.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Extend CapturedEnv to include function parameters used in loop conditions,
enabling ExprLowerer to resolve variables like `s` in `loop(p < s.length())`.
Phase 245C changes:
- function_scope_capture.rs: Add collect_names_in_loop_parts() helper
- function_scope_capture.rs: Extend analyze_captured_vars_v2() with param capture logic
- function_scope_capture.rs: Add 4 new comprehensive tests
Test fix:
- expr_lowerer/ast_support.rs: Accept all MethodCall nodes for syntax support
(validation happens during lowering in MethodCallLowerer)
Problem solved: "Variable not found: s" errors in loop conditions
Test results: 924/924 PASS (+13 from baseline 911)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Remove legacy hardcoded 'sum' carrier validation that was blocking
array_filter patterns with different accumulator names (e.g., 'out').
Before: Pattern3 required carrier named 'sum' to exist
After: Pattern3 uses carrier_info generically (any carrier name works)
Test results:
- phase49_joinir_array_filter_smoke: PASS ✅
- phase49_joinir_array_filter_fallback: PASS ✅
- phase49_joinir_array_filter_ab_comparison: PASS ✅
- Full suite: 909/909 PASS, 0 FAIL
Also: Archive old roadmap documentation (67k lines moved to docs/archive/)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Pilot implementation of unified expression lowering for Pattern2 break conditions:
New files:
- scope_manager.rs (280 lines) - ScopeManager trait + Pattern2ScopeManager
- expr_lowerer.rs (455 lines) - ExprLowerer with Condition context support
Features:
- Unified variable lookup across ConditionEnv/LoopBodyLocalEnv/CapturedEnv/CarrierInfo
- Pre-validation of condition AST before lowering
- Fail-safe design with fallback to legacy path
- 8 new unit tests (all pass)
Integration:
- Pattern2 break condition uses ExprLowerer for pre-validation
- Existing proven lowering path preserved
- Zero impact on existing functionality (890/897 tests pass)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add DigitPosConditionNormalizer to transform integer comparison to boolean:
- `digit_pos < 0` → `!is_digit_pos`
This eliminates the type error caused by comparing Bool carrier with Integer:
- Before: Bool(is_digit_pos) < Integer(0) → Type error
- After: !is_digit_pos → Boolean expression, no type mismatch
Implementation:
- New Box: digitpos_condition_normalizer.rs (173 lines)
- Pattern2 integration: normalize after promotion success
- 5 unit tests (all pass)
- E2E test passes (type error eliminated)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Replace static alias mapping with dynamic condition variable resolution using:
- promoted_loopbodylocals as source of truth
- Naming conventions: is_<var> or is_<var>_match
- Pattern-aware inference during lowering
Benefits:
- Simpler data structure (6 fields → 5)
- Single source of truth
- Self-documenting with explicit naming conventions
- Fewer maintenance points
Net: -25 lines (60 additions, 85 deletions)
Tests: 877/884 PASS (no regressions)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- ExitMetaCollector includes ConditionOnly carriers in exit_bindings (for latch)
- ExitLineReconnector skips ConditionOnly in variable_map updates
- Pattern 2/3/4 pass carrier_info to ExitMetaCollector
- Resolves "has no latch incoming set" error
Role separation:
- Header PHI: entry + latch for both LoopState and ConditionOnly
- Exit PHI: LoopState only (ConditionOnly excluded)
- variable_map: LoopState only (ConditionOnly skipped)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add CarrierInit enum (FromHost/BoolConst) for explicit initialization policy
- LoopHeaderPhiBuilder generates Const instruction for BoolConst carriers
- merge/mod.rs uses carrier_info to include ALL carriers in header PHI
- Pattern 2/4 pass carrier_info to boundary builder
- ConditionOnly carriers (is_digit_pos) now included in header PHI
Remaining: latch incoming for ConditionOnly carriers (Phase 228-8)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add CarrierRole enum to distinguish state carriers from condition-only carriers
- ConditionOnly carriers (is_digit_pos) skip exit PHI but keep header PHI
- Update all test struct literals with role field
- 877/884 tests PASS (7 pre-existing failures unrelated)
Remaining: ValueId(0) undefined - header PHI initialization for ConditionOnly
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Remove hardcoded method whitelist from loop_body_local_init.rs
- Remove hardcoded box name matching
- Delegate to MethodCallLowerer for all MethodCall handling
- CoreMethodId metadata is now SSOT for init method validation
- substring now works in body-local init (-82 net lines)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add ConditionAlias type to CarrierInfo (old_name → carrier_name)
- Record aliases in DigitPosPromoter and TrimPatternInfo
- Resolve aliases in Pattern2 ConditionEnv building
- digit_pos now correctly resolves to is_digit_pos carrier
Fixes "Variable 'digit_pos' not bound in ConditionEnv" error.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Extend CoreMethodId with is_pure(), allowed_in_condition(), allowed_in_init()
- New MethodCallLowerer box for metadata-driven MethodCall lowering
- Integrate MethodCall handling in condition_lowerer
- P0: Zero-argument methods (length) supported
- Design principle: NO method name hardcoding, CoreMethodId metadata only
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add promoted_loopbodylocals field to CarrierInfo
- Record promoted variables in Pattern2 promotion handler
- Filter promoted variables in lowerer LoopBodyLocal check
- digit_pos → is_digit_pos promotion now continues to lowering
Closes Phase 224 lowerer integration gap.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Phase 222: If Condition Normalization - Part 3
Goal: Integrate normalization into if-sum pattern detection and lowering
Changes:
1. pattern_pipeline.rs (is_if_sum_pattern):
- Updated to use analyze_condition_pattern() + normalize_comparison()
- Added two-step validation:
(a) Pattern must be SimpleComparison
(b) Condition must be normalizable
- Replaced is_simple_comparison() with Phase 222 API
2. loop_with_if_phi_if_sum.rs (extract_loop_condition):
- Added Phase 222 normalization
- Normalize condition to canonical form (var on left)
- Support both literal and variable on right-hand side
- Added mir::CompareOp → join_ir::CompareOp conversion
- Handles:
* Phase 219: var CmpOp literal (e.g., i > 0)
* Phase 222: literal CmpOp var (e.g., 0 < i) → normalized
* Phase 222: var CmpOp var (e.g., i > j)
Status: Integration complete, ready for E2E testing
Next: Phase 222-4 - verify regression tests and add new test cases
Changed IfSumTest to Main box with main(args) to match entry point
convention. Removed print() calls that aren't needed for RC test.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Modified extract_loop_condition() to use ConditionEnv for variable lookup:
- Now returns ValueId instead of i64 for loop limit
- Uses lower_value_expression() for both literals and variables
- Integrated ConditionEnvBuilder in Pattern 3 if-sum path
This enables realistic loop patterns like `loop(i < len)` in if-sum.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Introduced ConditionPatternBox to detect if condition complexity:
- Simple comparisons (var CmpOp literal): use AST-based if-sum lowerer
- Complex conditions (BinaryOp, etc.): fallback to legacy P3 lowerer
This fixes loop_if_phi.hako which was broken by Phase 219's
is_if_sum_pattern() changes.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add expr_result handling in merge_joinir_mir_blocks
- When expr_result matches a carrier, return carrier PHI dst
- Enables expr-position loops to properly return accumulator values
Note: Phase 219 regression (loop_if_phi.hako) to be fixed in next commit
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
