nyash-codex
052040e59c
refactor(joinir): extract ExitArgsCollectorBox for jump_args SSOT
Phase 118 refactoring: Box modularization for exit value collection.
# Changes
- Created `exit_args_collector.rs` with ExitArgsCollectorBox
- Extracted jump_args processing logic from instruction_rewriter.rs
- Implemented SSOT for offset calculation (0 vs 1 legacy layout)
- Added comprehensive unit tests (6 tests, all passing)
# Design
- **Responsibility**: Collects exit PHI inputs + carrier inputs from jump_args
- **SSOT**: Centralized offset calculation logic
- **Fail-Fast**: Validates jump_args length against exit_bindings
- **Phase 118 P2 Contract**: Uses boundary.exit_bindings as SSOT
# Key Features
- Filters ConditionOnly carriers (no exit PHI needed)
- Handles both direct mapping (offset=0) and legacy layout (offset=1)
- Strict mode: Fail-Fast on validation errors
- Non-strict mode: Warns and continues with best effort
# Test Results
- Unit tests: 6/6 PASS
- Phase 118 smoke tests: PASS (VM + LLVM)
- Phase 117 regression: PASS
# Reduced Code Complexity
- instruction_rewriter.rs: ~90 lines → ~25 lines (box call)
- Offset logic: Centralized in ExitArgsCollectorBox
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-18 03:56:21 +09:00
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