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fix(es/minifier): preserve spread args in new function expr Spread arguments have dynamic runtime arity, so a syntactic trailing argument after a spread cannot be classified as unused based only on the formal parameter count.\n\nSkip the new-function argument cleanup whenever the NewExpr argument list contains a spread, and add fixture plus execution coverage for a spread-before-trailing-argument case.

skku970412:fix-new-expr-useless-args-11684

48 minutes ago

fix(react-compiler): Remove React-like prefilter (#12007) **Description:** Remove SWC's React-like function prefilter and defer compilation eligibility to React Compiler. The prefilter duplicates React Compiler policy and rejects source before the compiler can evaluate it. For example: ```jsx function createFoo() { return function Foo() { "use memo"; return <div>hello, world</div>; }; } ``` React Compiler's Babel integration compiles the annotated inner function, but SWC previously returned the source unchanged because `createFoo` did not look React-like and the prefilter intentionally did not inspect nested function bodies. This pattern is not necessarily a React-blessed use of the directive nor is it conventional React. Regardless, the SWC adapter should not impose a stricter eligibility policy or limit valid uses of the React Compiler API. React Compiler should remain responsible for deciding what to compile. This PR removes the React-like heuristic while retaining the separate guard for unsupported resource-management declarations. It also adds a fixture covering the nested directive case. **Related issue (if exists):** N/A **Verification:** - `cargo fmt --all` - `cargo test -p swc_ecma_react_compiler` - `cargo clippy --all --all-targets -- -D warnings` --- _Prepared with assistance from OpenAI Codex 🤖._

main

2 hours ago

Merge branch 'main' into jordant/remove-react-prefilter

imjordanxd:jordant/remove-react-prefilter

3 hours ago

feat(test262): harden conformance runtime

refactor/test262

5 hours ago

refactor: remove direct rkyv dependencies (#12010) ## Summary - Remove SWC's direct `rkyv`, `bytecheck`, and `rancor` dependencies and archive implementations. - Keep plugin serialization on CBOR and refresh path-based plugin fixture lockfiles. - Retain only transitive rkyv usage from Wasmer and lightningcss. ## Validation - `cargo fmt --all` - `cargo clippy --all --all-targets -- -D warnings` - `cargo test` for all changed Rust crates - Plugin and host feature checks --- Closes https://github.com/swc-project/swc/issues/11991

main

8 hours ago

test(es/module): cover import assignment name collisions

refactor/module-transform

8 hours ago

chore: add rkyv removal changeset

kdy1:kdy1/remove-direct-rkyv

8 hours ago

refactor: remove direct rkyv dependencies

kdy1:kdy1/remove-direct-rkyv

8 hours ago

Latest Branches

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fix(es/minifier): drop pure extra args of new function expr#12012

1 hour ago

4705e06

skku970412:fix-new-expr-useless-args-11684

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fix(react-compiler): Remove React-like prefilter#12007

3 hours ago

9dccf65

imjordanxd:jordant/remove-react-prefilter

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feat(test262): add official Test262 conformance runner#12011

6 hours ago

55a2f22

refactor/test262

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