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891c39c67fb3c2d2ca08146bbcc4b088121221ba
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Author SHA1 Message Date
nyash-codex
891c39c67f docs(joinir): Task 200-4 - Update CURRENT_TASK and overview for Phase 200 Pipeline Cleanup 
- Added Phase 200 completion status to CURRENT_TASK.md
- Updated joinir-architecture-overview.md with:
  - JoinInlineBoundaryBuilder (Phase 200-2)
  - JoinIRVerifier (Phase 200-3)
- Phase 200 achievements:
  - Task 200-1: Pattern × Box matrix table (21 boxes documented)
  - Task 200-2: Builder pattern for JoinInlineBoundary (Pattern2 pilot)
  - Task 200-3: Debug contract verifier for LoopHeader PHI/ExitLine
  - Task 200-4: Documentation updates

Phase 200 cleanup focuses on pipeline structure improvement without
changing behavior, establishing foundation for future refactoring.
 2025-12-08 04:35:13 +09:00
nyash-codex
69ce196fb4 feat(joinir): Phase 33-23 Stage 2 - Pattern-specific analyzers (Issue 2, Issue 6) 
Implements Stage 2 of the JoinIR refactoring roadmap, extracting specialized
analyzer logic from pattern implementations.

## Issue 2: Continue Analysis Extraction (80-100 lines reduction)

**New Module**: `pattern4_carrier_analyzer.rs` (346 lines)
- `analyze_carriers()` - Filter carriers based on loop body updates
- `analyze_carrier_updates()` - Delegate to LoopUpdateAnalyzer
- `normalize_continue_branches()` - Delegate to ContinueBranchNormalizer
- `validate_continue_structure()` - Verify continue pattern validity
- **6 unit tests** covering validation, filtering, normalization

**Updated**: `pattern4_with_continue.rs`
- Removed direct ContinueBranchNormalizer usage (24 lines)
- Removed carrier filtering logic (replaced with analyzer call)
- Cleaner delegation to Pattern4CarrierAnalyzer

**Line Reduction**: 24 lines direct removal from pattern4

## Issue 6: Break Condition Analysis Extraction (60-80 lines reduction)

**New Module**: `break_condition_analyzer.rs` (466 lines)
- `extract_break_condition()` - Extract break condition from if-else-break
- `has_break_in_else_clause()` - Check for else-break pattern
- `validate_break_structure()` - Validate condition well-formedness
- `extract_condition_variables()` - Collect variable dependencies
- `negate_condition()` - Helper for condition negation
- **10 unit tests** covering all analyzer functions

**Updated**: `ast_feature_extractor.rs`
- Delegated `has_break_in_else_clause()` to BreakConditionAnalyzer (40 lines)
- Delegated `extract_break_condition()` to BreakConditionAnalyzer
- Added Phase 33-23 documentation
- Cleaner separation of concerns

**Line Reduction**: 40 lines direct removal from feature extractor

## Module Structure Updates

**Updated**: `src/mir/builder/control_flow/joinir/patterns/mod.rs`
- Added pattern4_carrier_analyzer module export
- Phase 33-23 documentation

**Updated**: `src/mir/loop_pattern_detection/mod.rs`
- Added break_condition_analyzer module export
- Phase 33-23 documentation

## Test Results

✅ **cargo build --release**: Success (0 errors, warnings only)
✅ **New tests**: 16/16 PASS
  - pattern4_carrier_analyzer: 6/6 PASS
  - break_condition_analyzer: 10/10 PASS
✅ **No regressions**: All new analyzer tests pass

## Stage 2 Summary

**Total Implementation**:
- 2 new analyzer modules (812 lines)
- 16 comprehensive unit tests
- 4 files updated
- 2 mod.rs exports added

**Total Line Reduction**: 64 lines direct removal
- pattern4_with_continue.rs: -24 lines
- ast_feature_extractor.rs: -40 lines

**Combined with Stage 1**: 130 lines total reduction (66 + 64)
**Progress**: 130/630 lines (21% of 30% goal achieved)

## Design Benefits

**Pattern4CarrierAnalyzer**:
- Single responsibility: Continue pattern analysis only
- Reusable for future continue-based patterns
- Independent testability
- Clear delegation hierarchy

**BreakConditionAnalyzer**:
- Generic break pattern analysis
- Used by Pattern 2 and future patterns
- No MirBuilder dependencies
- Pure function design

## Box Theory Compliance

✅ Single responsibility per module
✅ Clear public API boundaries
✅ Appropriate visibility (pub(in control_flow::joinir::patterns))
✅ No cross-module leakage
✅ Testable units

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

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-08 04:00:44 +09:00
nyash-codex
5ba11468e4 feat(joinir): Phase 172 - Trim pattern JoinIR lowering implementation 
Implement actual MIR generation for Trim pattern loops, enabling
LoopBodyLocal variables to work through bool carrier promotion.

## Implementation (pattern2_with_break.rs)
- emit_whitespace_check(): Generate OR chain for whitespace comparison
- extract_substring_args(): Extract s, start from substring call
- Initial carrier generation: ch0 = s.substring(start, start+1)
- Whitespace check: is_ch_match0 = (ch0 == " " || "\t" || "\n" || "\r")
- ConditionEnv integration: Register carrier for JoinIR condition
- Break condition replacement: !is_ch_match instead of original ch checks

## Architecture
- Host MIR: substring calls, OR chain evaluation, BoxCall
- JoinIR: Only sees bool carrier for break control
- No new JoinIR instructions added

## Documentation
- phase172-trim-lowering-impl.md: Design and implementation details
- loop_pattern_space.md: Analysis of all loop pattern combinations

Test: Trim loops compile and generate JoinIR successfully
Build: 0 errors, clean compilation

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 2025-12-08 03:06:20 +09:00
nyash-codex
88400e7e22 feat(joinir): Phase 171-C-2 Trim pattern detection in LoopBodyCarrierPromoter 
Implements the Trim pattern detection logic for carrier promotion:

- find_definition_in_body(): Iterative AST traversal to locate variable definitions
- is_substring_method_call(): Detects substring() method calls
- extract_equality_literals(): Extracts string literals from OR chains (ch == " " || ch == "\t")
- TrimPatternInfo: Captures detected pattern details for carrier promotion

This enables Pattern 5 to detect trim-style loops:
```hako
loop(start < end) {
    local ch = s.substring(start, start+1)
    if ch == " " || ch == "\t" || ch == "\n" || ch == "\r" {
        start = start + 1
    } else {
        break
    }
}
```

Unit tests cover:
- Simple and nested definition detection
- substring method call detection
- Single and chained equality literal extraction
- Full Trim pattern detection with 2-4 whitespace characters

Next: Phase 171-C-3 integration with Pattern 2/4 routing

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 2025-12-07 23:09:25 +09:00
nyash-codex
1356b61ff7 feat(joinir): Phase 170-D-impl-1 LoopConditionScopeBox skeleton creation 
Implement the LoopConditionScope analysis infrastructure for Pattern2/4 validation:

New module:
- src/mir/loop_pattern_detection/loop_condition_scope.rs (220 lines)

Types:
- CondVarScope enum: LoopParam, OuterLocal, LoopBodyLocal
- CondVarInfo: Variable name + scope classification
- LoopConditionScope: Collection of analyzed variables with helper methods

Box implementation (LoopConditionScopeBox):
- analyze(): Main entry point - extracts and classifies condition variables
- extract_vars(): Recursive AST traversal to find all variable references
- is_outer_local(): Heuristic for outer scope detection (phase 170-D simplified)

Helper methods:
- has_loop_body_local(): Check for unsupported loop-body variables
- all_in(): Validate scope compatibility
- var_names(): Get variable set
- add_var(): Add with deduplication

Tests: 5 unit tests for core functionality

Architecture: Refactored loop_pattern_detection.rs → loop_pattern_detection/mod.rs
for modular organization.

Build: ✅ Passed with no errors

🤖 Generated with Claude Code
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-07 21:29:19 +09:00
nyash-codex
4e32a803a7 feat(joinir): Phase 33-22 CommonPatternInitializer & JoinIRConversionPipeline integration 
Unifies initialization and conversion logic across all 4 loop patterns,
eliminating code duplication and establishing single source of truth.

## Changes

### Infrastructure (New)
- CommonPatternInitializer (117 lines): Unified loop var extraction + CarrierInfo building
- JoinIRConversionPipeline (127 lines): Unified JoinIR→MIR→Merge flow

### Pattern Refactoring
- Pattern 1: Uses CommonPatternInitializer + JoinIRConversionPipeline (-25 lines)
- Pattern 2: Uses CommonPatternInitializer + JoinIRConversionPipeline (-25 lines)
- Pattern 3: Uses CommonPatternInitializer + JoinIRConversionPipeline (-25 lines)
- Pattern 4: Uses CommonPatternInitializer + JoinIRConversionPipeline (-40 lines)

### Code Reduction
- Total reduction: ~115 lines across all patterns
- Zero code duplication in initialization/conversion
- Pattern files: 806 lines total (down from ~920)

### Quality Improvements
- Single source of truth for initialization
- Consistent conversion flow across all patterns
- Guaranteed boundary.loop_var_name setting (prevents SSA-undef bugs)
- Improved maintainability and testability

### Testing
- All 4 patterns tested and passing:
  - Pattern 1 (Simple While): ✅
  - Pattern 2 (With Break): ✅
  - Pattern 3 (If-Else PHI): ✅
  - Pattern 4 (With Continue): ✅

### Documentation
- Phase 33-22 inventory and results document
- Updated joinir-architecture-overview.md with new infrastructure

## Breaking Changes
None - pure refactoring with no API changes

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

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-07 21:02:20 +09:00