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88400e7e22
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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>
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2025-12-07 23:09:25 +09:00 |
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