rollup-plugin-oxc

A Rollup plugin to resolve, transform, minify TypeScript and generate type declarations with oxc.

Usage

1import oxc from "rollup-plugin-oxc";
2
3export default {
4  input: "src/index.ts",
5  plugins: [
6    oxc({
7      tsconfigCompilerOptions: {
8        target: "es2021", // oxc's target
9        experimentalDecorators: true, // require `@oxc-project/runtime`
10        useDefineForClassFields: false, // contrary to oxc's assumptions.setPublicClassFields, typescript.removeClassFieldsWithoutInitializer
11        declaration: true, // for d.ts
12        declarationMap: true, // for d.ts.map
13      },
14      minify: true, // preset `oxc-minify` option, pass an object for more options
15      resolve: {
16        // `oxc-resolver` options
17      },
18      transform: {
19        // `oxc-transform` options, overrides tsconfigCompilerOptions migration
20      },
21    }),
22  ],
23  output: [
24    {
25      dir: ".",
26      format: "esm",
27      sourcemap: true,
28      preserveModules: true,
29    },
30  ],
31};

Interchangeable

These Rollup plugins can be replaced.

• Module resolvers e.g., @rollup/plugin-node-resolve
• Transformers e.g., @rollup/plugin-typescript
• Compressors e.g., @rollup/plugin-terser

1import nodeResolve from "@rollup/plugin-typescript";
2import typescript from "@rollup/plugin-typescript";
3import terser from "@rollup/plugin-terser";
4
5export default {
6  plugins: [nodeResolve(), typescript(), terser()],
7};

1import oxc from "rollup-plugin-oxc";
2
3export default {
4  plugins: [oxc()],
5};

In Rolldown, this plugin can be removed.

1import migrate from "rollup-plugin-oxc/migrate.js";
2
3export default {
4  input: "src/index.ts",
5  output: [
6    {
7      dir: ".",
8      format: "esm",
9      sourcemap: true,
10      preserveModules: true,
11      minify: true,
12    },
13  ],
14  transform: {
15    ...migrate({
16      target: "es2021",
17      experimentalDecorators: true,
18      useDefineForClassFields: false,
19    }),
20  },
21};