@react-native-swc/metro-plugin

SWC WASM plugin that implements Metro's post-transform passes:

| Pass | Purpose | | --------------------- | ---------------------------------------------------------------------------------------------------------------------------------- | | experimentalImports | Rewrites ESM imports to CJS-shaped var X = require("m").X so inlineRequires can recognise them. | | inline | Platform.OS, Platform.select({...}) substitution. (__DEV__ / process.env.NODE_ENV are handled by SWC's optimizer globals.) | | inlineRequires | Moves top-level var X = require("m") aliases to each use site; supports memoizeCalls. | | constantFolding | Folds true && x, 'ios' === 'android' ? a : b, constant if branches. |

Each pass is individually opt-in via options — production (via react-native-swc) turns them on together; tests flip one flag at a time.

Install

yarn add -D @react-native-swc/metro-plugin

Normally you don't configure this package directly — react-native-swc depends on it and wires it into Metro's SWC plugin pipeline automatically.

License

MIT.