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abfe0b198b
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feat(joinir): Phase 195 - Unified JoinLoopTrace for all JoinIR debug output
Created centralized tracing module for JoinIR loop lowering operations,
consolidating scattered eprintln! calls into a single SSOT interface.
# Implementation
1. **Created trace.rs module** (~233 lines)
- JoinLoopTrace struct with env var controls
- Unified API: pattern(), varmap(), joinir_stats(), phi(), merge(), etc.
- Global singleton via trace() function
- Supports 5 env vars: NYASH_TRACE_VARMAP, NYASH_JOINIR_DEBUG,
NYASH_OPTION_C_DEBUG, NYASH_JOINIR_MAINLINE_DEBUG, NYASH_LOOPFORM_DEBUG
2. **Updated debug.rs** - Delegates trace_varmap() to JoinLoopTrace
3. **Updated routing.rs** - All eprintln! replaced with trace calls (10 instances)
4. **Updated pattern routers** - All 3 patterns now use unified trace
- pattern1_minimal.rs: 6 replacements
- pattern2_with_break.rs: 6 replacements
- pattern3_with_if_phi.rs: 6 replacements
- router.rs: 2 replacements
5. **Updated merge/block_allocator.rs** - 6 eprintln! → trace calls
# Benefits
- **Single Source of Truth**: All trace control through environment variables
- **Consistent Format**: Unified [trace:*] prefix for easy filtering
- **Zero Overhead**: No output when env vars unset
- **Easy Extension**: Add new trace points via existing API
- **Better Debug Experience**: Structured output with clear categories
# Testing
✅ cargo build --release - Success
✅ NYASH_TRACE_VARMAP=1 - Shows varmap traces only
✅ NYASH_JOINIR_DEBUG=1 - Shows joinir + blocks + routing traces
✅ No env vars - No debug output
✅ apps/tests/loop_min_while.hako - All tests pass
# Related
- Phase 191-194 groundwork (modular merge structure)
- NYASH_TRACE_VARMAP added today for variable_map debugging
- Consolidates ~80 scattered eprintln! calls across JoinIR
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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2025-12-05 22:23:51 +09:00 |
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