This commit investigates ValueId(21) undefined error in Stage-B compilation.
Changes:
- src/mir/builder/builder_calls.rs:
- Add NYASH_DEBUG_PARAM_RECEIVER=1 trace for method call receivers
- Track variable_map lookups and ValueId mismatches
- Log receiver origin and current_block context
- src/mir/builder/utils.rs:
- Fix start_new_block() to avoid overwriting existing blocks
- Check if block exists before calling add_block()
- Prevents Copy instructions from being lost
- src/mir/function.rs:
- Add warning log when replacing existing block
- Helps detect block overwrite issues
- lang/src/mir/builder/ (Hako files):
- Add debug prints for method lowering paths
- These were not used (Stage-B uses Rust MIR Builder)
- Kept for future Hako MIR Builder debugging
Key Discovery:
- Stage-B compilation uses Rust MIR Builder, not Hako MIR Builder
- ValueId(21) is undefined receiver in StageBArgsBox.resolve_src/1
- MIR shows: call_method ParserBox.length() [recv: %21] but %21 has no definition
- Likely caused by LocalSSA Copy emission failure or block overwrite
Next: Fix LocalSSA to ensure receiver Copy is properly emitted and preserved
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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