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⚡ Bolt: Remove unnecessary Token cloning in parser - #9

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Tcode-Motion merged 2 commits into
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bolt-parser-optimization-9269391063391972267
Aug 16, 2026
Merged

⚡ Bolt: Remove unnecessary Token cloning in parser#9
Tcode-Motion merged 2 commits into
mainfrom
bolt-parser-optimization-9269391063391972267

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@Tcode-Motion

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💡 What: Refactored lifetimes in the parser's advance and previous methods and removed .clone() calls on tokens.
🎯 Why: Methods were returning a reference tied to &mut self. To call other methods on self while holding a token, the token had to be cloned, causing unnecessary allocations. By tying the lifetime to the token slice (&'a Token), we bypass the borrow checker conflict.
📊 Impact: Eliminates unnecessary memory allocations and copying for every token advanced or peeked during expression and statement parsing.
🔬 Measurement: Verified via cargo test -p techscript_parser and cargo bench -p techscript_parser. No functional regressions.


PR created automatically by Jules for task 9269391063391972267 started by @Tcode-Motion

Changed the return type of `advance()` and `previous()` in the parser from `&Token` to `&'a Token`, tying the returned reference to the underlying token slice rather than the mutable `self` borrow. This satisfies the borrow checker and allows the removal of expensive `Token` `.clone()` calls throughout `expressions.rs` and `statements.rs`.

Co-authored-by: Tcode-Motion <188012755+Tcode-Motion@users.noreply.github.com>
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Changed the return type of `advance()` and `previous()` in the parser from `&Token` to `&'a Token`, tying the returned reference to the underlying token slice rather than the mutable `self` borrow. This satisfies the borrow checker and allows the removal of expensive `Token` `.clone()` calls throughout `expressions.rs` and `statements.rs`.

Co-authored-by: Tcode-Motion <188012755+Tcode-Motion@users.noreply.github.com>
@Tcode-Motion
Tcode-Motion marked this pull request as ready for review August 16, 2026 05:11
@Tcode-Motion
Tcode-Motion merged commit ccc56f8 into main Aug 16, 2026
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