docs: Phase 188 Task 188-5 CURRENT_TASK.md Update
Phase 188 Status: 80% COMPLETE - Foundation Ready for Implementation Updated CURRENT_TASK.md to reflect Phase 188 completion status: - ✅ Task 188-1: Error Inventory (5 patterns) - ✅ Task 188-2: Pattern Classification (3 selected) - ✅ Task 188-3: Design (51KB blueprint) - ✅ Task 188-4: Implementation Foundation (1,802 lines) - ✅ Task 188-5: Verification & Documentation (COMPLETE) Foundation Verification: - ✅ cargo build --release: SUCCESS (0 errors) - ✅ Foundation tests: PASS (8/8) - ✅ Pattern detection module: 338 lines - ✅ Lowering functions module: 803 lines - ✅ Router integration: 153 lines - ✅ Implementation roadmap: 508 lines Ready for Implementation: - Pattern 1 (Simple While): 6-8h - Pattern 2 (Break): 6-10h - Pattern 3 (If-Else PHI): 6-10h Next: Implement is_simple_while_pattern() in src/mir/loop_pattern_detection.rs Updated docs/private submodule with test-results.md and all Phase 188 docs. 🤖 Generated with Claude Code Co-Authored-By: Claude <noreply@anthropic.com>
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nyash-codex
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CURRENT_TASK.md
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CURRENT_TASK.md
@ -132,20 +132,141 @@ NYASH_JOINIR_CORE=1 ./target/release/hakorune apps/tests/loop_min_while.hako 2>&
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---
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## 📋 Phase 188: JoinIR Loop Pattern Expansion (Planning - Ready to Start)
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## 📋 Phase 188: JoinIR Loop Pattern Expansion (80% Complete - Ready for Implementation)
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**Status**: 📋 **Documentation Complete** → Ready for Task Execution
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**Status**: 📋 **Planning & Foundation Complete** → Implementation Phase Ready
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**Objective**: Expand JoinIR loop pattern coverage to handle loop patterns currently failing with `[joinir/freeze]` error.
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**Progress**: 4/5 tasks complete
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- ✅ Task 188-1: Error Inventory
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- ✅ Task 188-2: Pattern Classification & Prioritization
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- ✅ Task 188-3: Design (Documentation-First)
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- ✅ Task 188-4: Implementation Foundation
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- ✅ Task 188-5: Verification & Documentation (JUST COMPLETED)
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**Context**: Phase 187 completed LoopBuilder physical removal. Now, loop patterns not yet supported by JoinIR fail explicitly with clear error messages. Phase 188 extends JoinIR to cover the most common unsupported patterns.
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**Key Metrics**:
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- 5 failing loop patterns identified
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- 3 patterns selected for Phase 188
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- 1,802 lines of implementation scaffolding created
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- 51KB comprehensive design document
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- Build: ✅ SUCCESS (0 errors)
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- Foundation tests: ✅ PASS (8/8)
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**Scope**: Focus on 2-3 representative loop patterns from selfhost/Stage-1/Stage-B that are currently blocked.
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**Next Steps (Immediate)**:
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1. Implement Pattern 1: Simple While Loop (6-8 hours)
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- File: `src/mir/loop_pattern_detection.rs`
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- Entry point: `is_simple_while_pattern()` function
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- Reference: `design.md` Pattern 1 section
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### Phase 188 Task Breakdown
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2. Test with: `apps/tests/loop_min_while.hako`
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#### 📝 Task 188-1: Error Inventory
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**Objective**: Collect all loop patterns currently failing with `[joinir/freeze]`.
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3. Then Pattern 2 (Break) and Pattern 3 (If-Else PHI)
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**Resources**:
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- Design: `docs/private/roadmap2/phases/phase-188-joinir-loop-pattern-expansion/design.md`
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- Roadmap: `docs/private/roadmap2/phases/phase-188-joinir-loop-pattern-expansion/IMPLEMENTATION_ROADMAP.md`
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- Foundation: `src/mir/loop_pattern_detection.rs` + `src/mir/join_ir/lowering/loop_patterns.rs`
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- Test Results: `docs/private/roadmap2/phases/phase-188-joinir-loop-pattern-expansion/test-results.md`
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**Effort Estimate**:
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- Pattern 1: 6-8h
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- Pattern 2: 6-10h
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- Pattern 3: 6-10h
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- Integration: 2-4h
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- **Total**: 18-28 hours
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---
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### Phase 188 Completed Tasks
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#### ✅ Task 188-1: Error Inventory (Completed)
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**Status**: ✅ **COMPLETE** - 5 patterns documented in `inventory.md`
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**Results**:
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- 5 failing loop patterns discovered and documented
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- Test configuration: `NYASH_JOINIR_CORE=1`, `NYASH_LEGACY_LOOPBUILDER=0`, `NYASH_DISABLE_PLUGINS=1`
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- All patterns fail with explicit `[joinir/freeze]` error (no silent fallback)
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- 4 If-only tests pass (JoinIR If lowering stable)
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**Deliverables**:
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- `inventory.md` - Detailed pattern inventory with code snippets
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- `inventory_raw.txt` - Full test execution output (563 lines)
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- `task-188-1-summary.md` - Execution summary
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**Key Finding**: Simple While Loop (`loop_min_while.hako`) has NO control flow statements, making it the ideal foundational pattern.
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---
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#### ✅ Task 188-2: Pattern Classification & Prioritization (Completed)
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**Status**: ✅ **COMPLETE** - 3 patterns selected for Phase 188 implementation
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**Selected Patterns** (from 5 total):
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1. **Pattern 1: Simple While Loop** (MUST HAVE)
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- File: `apps/tests/loop_min_while.hako`
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- Frequency: 3.0/3.0 (HIGH in all contexts)
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- Complexity: 1/3 (Easy)
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- Blocker Impact: CRITICAL (foundation for all other patterns)
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2. **Pattern 2: Loop with Conditional Break** (SHOULD HAVE)
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- File: `apps/tests/joinir_min_loop.hako`
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- Frequency: 2.3/3.0 (HIGH in test suite, 18 files with break)
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- Complexity: 2/3 (Medium)
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- Blocker Impact: HIGH (early exit patterns in parsers/validators)
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3. **Pattern 3: Loop with If-Else PHI** (SHOULD HAVE)
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- File: `apps/tests/loop_if_phi.hako`
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- Frequency: 2.3/3.0 (HIGH in selfhost)
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- Complexity: 2/3 (Medium)
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- Blocker Impact: HIGH (conditional accumulation, selfhost compiler logic)
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**Deferred Patterns** (2 patterns → Phase 189+):
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- Pattern 4: One-Sided If (will be auto-handled by Pattern 3)
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- Pattern 5: Continue (lowest frequency 0.7/3.0, highest complexity 3/3)
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**Deliverables**:
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- `pattern-classification.md` - Full classification analysis (5 patterns, frequency data, rationale)
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**Implementation Estimate**: 18-28 hours (6-8h + 6-10h + 6-10h for 3 patterns)
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---
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#### ✅ Task 188-3: Design (Completed)
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**Status**: ✅ **COMPLETE** - Comprehensive design blueprint (51KB)
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**Deliverables**:
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- `design.md` - 1651 lines comprehensive design document
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- Pattern detection pseudocode for all 3 patterns
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- Lowering strategies with CFG examples
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- PHI generation logic documented
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---
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#### ✅ Task 188-4: Implementation Foundation (Completed)
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**Status**: ✅ **COMPLETE** - 1,802 lines scaffolding created
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**Modules Created**:
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- `src/mir/loop_pattern_detection.rs` - 338 lines (3 detection functions)
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- `src/mir/join_ir/lowering/loop_patterns.rs` - 803 lines (3 lowering functions)
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- `src/mir/join_ir/lowering/mod.rs` - Router integration (153 lines)
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**Foundation Features**:
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- 36 TODO markers (clear implementation steps)
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- 12 test skeletons (ready for implementation)
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- 6 pattern functions (3 detection + 3 lowering)
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**Build**: ✅ SUCCESS (0 errors, 33 warnings unrelated to Phase 188)
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---
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#### ✅ Task 188-5: Verification & Documentation (Completed)
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**Status**: ✅ **COMPLETE** - Foundation verified and documented
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**Verification Results**:
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- ✅ cargo build --release: SUCCESS
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- ✅ Foundation tests: 8/8 PASS
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- ✅ test-results.md created
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- ✅ CURRENT_TASK.md updated (this section)
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**Next Entry Point**: `src/mir/loop_pattern_detection.rs::is_simple_while_pattern()` (line ~50)
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- Run representative tests with JoinIR-only configuration
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- Test batch from `selfhost/apps/tests/loop_*.hako` files
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