feat(minifier): store symbol information for for init variables

[sapphi-red]

Store the symbol information for "for init variables" so that the transformation that relies on it can use it.

[sapphi-red]

• feat(minifier): inline constant that is declared in normal for statement initializer #13509
• feat(minifier): remove unused variables in for init #13508
• feat(minifier): store symbol information for for init variables #13507 👈 (View in Graphite)
• main

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[Copilot]

Pull Request Overview

This PR refactors how for statement initializer variables are handled in the minifier by moving the logic from symbol-level tracking to more targeted transformation-specific checks.

• Removes the for_statement_init field from SymbolValue struct
• Implements local checks for for statement context in transformations that need it
• Updates affected optimizations to use the new approach

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
crates/oxc_minifier/src/symbol_value.rs	Removes for_statement_init field from SymbolValue struct
crates/oxc_minifier/src/ctx.rs	Removes for statement initialization logic and field assignment
crates/oxc_minifier/src/peephole/inline.rs	Adds local is_for_statement_init function and updates value initialization logic
crates/oxc_minifier/src/peephole/remove_unused_expression.rs	Removes for statement check and adds new test cases
tasks/track_memory_allocations/allocs_minifier.snap	Updates memory allocation snapshots
tasks/minsize/minsize.snap	Updates minification size snapshots

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #13507 will not alter performance

_{Comparing 09-01-feat_minifier_store_symbol_information_for_for_init_variables (b4dfddd) with main (65aca9e)¹}

Summary

✅ 37 untouched benchmarks

Footnotes

1. No successful run was found on main (b4dfddd) during the generation of this report, so 65aca9e was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[graphite-app]

Merge activity

• Sep 1, 2:56 PM UTC: Boshen added this pull request to the Graphite merge queue.
• Sep 1, 3:01 PM UTC: Merged by the Graphite merge queue.