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fix(es/minifier): narrow new function arg cleanup Remove the visitor-based constructor argument observability checks and narrow the direct new-function argument cleanup to a known-safe fast path. The optimization now only handles anonymous, parameterless direct function constructors with a trivially safe body, and only removes side-effect-free arguments. More complex constructor bodies are skipped instead of analyzed. This keeps the fix for #11684 while avoiding new visitors for a small optimization.

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

23 minutes ago

fix(es/parser): refresh release and fixture metadata

kdy1:kdy1/remove-ecma-lexer

7 hours ago

Merge origin/main into kdy1/remove-ecma-lexer

kdy1:kdy1/remove-ecma-lexer

8 hours ago

refactor(es/lexer): remove smartstring dependency (#12013) **Description:** `smartstring` is archived and no longer maintained, but it was still used by the JSX entity readers in `swc_ecma_lexer` and `swc_ecma_parser` and by the `hstr` comparison benchmarks. This replaces the lexer buffers with the existing workspace dependency `compact_str::CompactString`, removes the obsolete `hstr` benchmark cases, and refreshes the root and standalone fixture/fuzz lockfiles so `smartstring` is no longer present in the repository dependency graph. JSX parsing behavior and public APIs are unchanged. Validation: - `cargo test -p swc_ecma_lexer -p swc_ecma_parser -p hstr` - `cargo check -p hstr --benches` - `cargo test -p swc_core -p swc_ecma_minifier -p swc_plugin_backend_tests` - `cargo fmt --all -- --check` - `cargo clippy --all --all-targets -- -D warnings` - `cargo tree -i smartstring --workspace --edges normal,dev` confirms the package is absent **Related issue:** Closes #11986

main

9 hours ago

test: verify v1 plugins with v2 host

kdy1:kdy1/swc-v2-parallel-packages

9 hours ago

refactor(es/parser): remove legacy lexer crate

kdy1:kdy1/remove-ecma-lexer

9 hours ago

refactor(es/lexer): remove smartstring dependency

kdy1/remove-smartstring

9 hours ago

fix(es/minifier): guard computed class keys in new functions Computed class element keys are evaluated while defining the class and can run in the surrounding constructor scope. The usage analyzer may not mark the outer constructor scope as using arguments for these keys, so the new-function argument cleanup must handle them explicitly. Bail out when the current constructor evaluation context may observe the constructor argument list through arguments, this, a referenced named function expression, new.target, or eval, including computed class keys and class heritage expressions. Add fixture and execution coverage for computed class key cases.

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

19 hours ago

Latest Branches

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

26 minutes ago

e4e8879

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

0%

refactor(es/parser): remove legacy lexer crate#12014

7 hours ago

0e11994

kdy1:kdy1/remove-ecma-lexer

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feat: scaffold parallel SWC v2 npm API#12015

9 hours ago

6cc187a

kdy1:kdy1/swc-v2-parallel-packages

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