swc

Curious how to contribute to SWC? Learn to set up the development environment, install Rust and pnpm, and run tests with feature flags to validate your contributions.

Explore SWC compatibility transforms for older JavaScript versions. Downgrade modern ECMAScript syntax to ES2022 down to ES3 with SWC's powerful tools. Read the complete guide.

Discover how SWC handles source maps and debugging. Explore its centralized SourceMap architecture, byte-to-line conversion, V3 source map emission, and WebAssembly plugin interface.

Explore SWC's AST structure and node types. Discover how its enum-based design in swc_ecma_ast ensures compile-time safety for transforming code with visitor patterns.

Troubleshoot SWC parsing errors for TypeScript and JavaScript. Learn to examine spans, drain lexer diagnostics, and trace execution to fix issues efficiently.

Easily migrate Babel projects to SWC. Learn configuration differences, map presets, and ensure compatibility with our simple guide. Switch to SWC today for faster builds.

Learn to build and run SWC plugin transformations using WebAssembly. Scaffold, compile, and load WASM plugins efficiently with SWC's runtime for custom code transformations.

Learn to implement custom transformations in SWC using the Visitor and Fold patterns. Mutate or produce new AST nodes with generated traits for powerful code manipulation.

Configure SWC preset-env for targeted browser support and polyfill management. Learn static and dynamic polyfill injection using `.swcrc` or Rust Config.

Discover how SWC's resolver pass uses SyntaxContext and lexical scopes for accurate identifier resolution and hygienic variable renaming across scopes.