Provides support for Vue 3 JSX / TSX syntax. This plugin internally integrates @vue/babel-plugin-jsx.

For Vue 2 projects, use @rsbuild/plugin-vue2-jsx.

Install:

npm add @rsbuild/plugin-vue-jsx @rsbuild/plugin-babel -D

Add plugin to your rsbuild.config.ts:

// rsbuild.config.ts
import { pluginBabel } from "@rsbuild/plugin-babel";
import { pluginVue } from "@rsbuild/plugin-vue";
import { pluginVueJsx } from "@rsbuild/plugin-vue-jsx";
export default {
  plugins: [
    pluginBabel({
      include: /\.(?:jsx|tsx)$/,
    }),
    pluginVue(),
    pluginVueJsx(),
  ],
};

After registering the plugin, you can use Vue's JSX / TSX syntax in .jsx, .tsx, and .vue files.

Since the Vue JSX plugin relies on Babel for compilation, you need to additionally add the @rsbuild/plugin-babel.

Babel compilation will introduce extra overhead, in the example above, we use include to match .jsx and .tsx files, thereby reducing the performance cost brought by Babel.

When using JSX in Vue SFC, you need to add lang="jsx" or lang="tsx" to the <script> tag.

• JSX:

<script lang="jsx">
  const vnode = <div>hello</div>;
</script>

• TSX:

<script lang="tsx">
  const vnode = <div>hello</div>;
</script>

When using Vue >= 3.3, please set "jsxImportSource": "vue" in tsconfig.json to enable JSX type inference.

{
  "compilerOptions": {
    "jsxImportSource": "vue"
  }
}

For more details, see Vue - JSX Type Inference.

If you need to customize the compilation behavior of Vue, you can use the following configs.

Options passed to @vue/babel-plugin-jsx, please refer to the @vue/babel-plugin-jsx documentation for detailed usage.

• Type:

type VueJSXPluginOptions = {
  /** transform `on: { click: someCallback }` to `onClick: someCallback` */
  transformOn?: boolean;
  /** enable optimization or not. */
  optimize?: boolean;
  /** merge static and dynamic class / style attributes / onSomething handlers */
  mergeProps?: boolean;
  /** configuring custom elements */
  isCustomElement?: (tag: string) => boolean;
  /** enable object slots syntax */
  enableObjectSlots?: boolean;
  /** Replace the function used when compiling JSX expressions */
  pragma?: string;
};

• Default: {}

• Example:

pluginVueJsx({
  vueJsxOptions: {
    transformOn: true,
  },
});

MIT.