feat(minifier): compress Object(expr)(args) to (0, expr)(args)

[sapphi-red]

Compress Object(expr)(args) to (0, expr)(args).

This can be done because

• the function call throws an error if the callee is not a function.
• Object(expr) would output a function if and only if expr is a function.

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References

• spec of Object()

[sapphi-red]

• feat(minifier): drop var r = [...arguments] if r is not used #13115
• feat(minifier): rewrite arguments copy loops to spread syntax #13114
• fix(minifier): keep Array reference id when compressing Array() #13113
• feat(minifier): compress Object(expr)(args) to (0, expr)(args) #13092 👈 (View in Graphite)
• main

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #13092 will not alter performance

_{Comparing 08-15-feat_minifier_compress_object_expr_args_to_0_expr_args_ (dea41dc) with main (56ae824)¹}

Summary

✅ 34 untouched benchmarks

Footnotes

1. No successful run was found on main (dea41dc) during the generation of this report, so 56ae824 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[Copilot]

Pull Request Overview

This PR adds a JavaScript minification optimization that compresses Object(expr)(args) function calls to the more compact (0, expr)(args) form, reducing bundle size while maintaining equivalent runtime behavior.

Key changes:

• Implemented try_rewrite_object_callee_indirect_call method to detect and transform Object(expr)(args) patterns
• Added comprehensive test coverage for the optimization including edge cases
• Achieved measurable size reductions in real-world bundles (victory.js: ~1.85kB, antd.js: ~20kB)

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
crates/oxc_minifier/src/peephole/substitute_alternate_syntax.rs	Implements the core optimization logic and test cases
tasks/minsize/minsize.snap	Shows benchmark results demonstrating bundle size improvements

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[magic-akari]

I'm wondering where the Object(expr)(args) pattern originates from? Is it typically generated by compilers like Babel, or does it come from another source?

[graphite-app]

Merge activity

• Aug 15, 11:24 AM UTC: Boshen added this pull request to the Graphite merge queue.
• Aug 15, 11:31 AM UTC: Merged by the Graphite merge queue.

[sapphi-red]

@magic-akari My guess is that it was generated by webpack.