transform

• Type: optional transform: TransformOptions

Defined in: options/input-options.ts:490

Configure how the code is transformed. This process happens after the transform hook.

To transpile legacy decorators, you could use

export default defineConfig({
  transform: {
    decorator: {
      legacy: true,
    },
  },
})

For latest decorators proposal, rolldown is able to bundle them but doesn't support transpiling them yet.