@swc/wasm

Bug Fixes

• (es/codegen) Emit leading comments for JSX elements, fragments, and empty expressions

• (es/decorators) Invoke addInitializer callbacks for decorated fields

• (es/es3) Visit export decl body even if name is not reserved

• (es/es3) Remove duplicate code

• (es/minifier) Treat new expression with empty class as side-effect free

• (es/minifier) Escape control characters when converting strings to template literals

• (es/minifier) Handle unused parameters with default values

• (es/module) Preserve ./ prefix for hidden directory imports

• (es/parser) Validate dynamic import argument count

• (es/parser) Allow compilation with --no-default-features

• (es/parser) Skip emitting TS1102 in TypeScript mode

• (es/parser) Reject ambiguous generic arrow functions in TSX mode

• (es/parser) Disallow NumericLiteralSeparator with BigInts

• (es/react) Preserve HTML entity-encoded whitespace in JSX

• (es/renamer) Prevent duplicate parameter names with destructuring patterns

• (es/testing) Skip update when expected output has invalid code

• (es/typescript) Don't mark enums with opaque members as pure

• (preset-env) Distinguish unknown browser vs empty config

Features

• (cli) Add --root-mode argument for .swcrc resolution

• (es/module) Make module transforms optional via module feature

• (es/regexp) Implement unicode property escape transpilation

• (es/transformer) Merge ES3 hooks into swc_ecma_transformer

Performance

• (bindings) Optimize string handling by avoiding unnecessary clones

• (es/codegen) Make commit_pending_semi explicit in write_punct

• (es/es2015) Port ES2015 transforms to hook-based visitors

• (es/es3) Use hooks pattern for single AST traversal

• (es/minifier) Use combined AST traversal

• (es/transformer) Add inline hint