lazy compilation get errors

[Asukaaaaaa]

i use a rsbuild plugin to generate route file, and import it from a virtual module.
everything is fine if i set dev.lazyCompilation: false.
otherwise will get this error.

error Build errors:
× cannot find module instance for id lazy-compilation-proxy|builtin:swc-loader??clonedRuleSet-50.use[0]!/home/zhh/workwork/football-champion/node_modules/@rsbuild/plugin-babel/compiled/babel-loader/index.js??clonedRuleSet-51.use[0]!/home/zhh/workwork/football-champion/node_modules/unplugin/dist/rspack/loaders/transform.js??unocss:webpack!/home/zhh/workwork/football-champion/packages/app/src/pages/_index.tsx

[Asukaaaaaa]

besides, is it posible to handle virtual module like vite style?
i try to add rule like this, but dont work.

config.module.rules?.push({
  scheme: "virtual",
  test: /virtual:routes/,
  type: "javascript/auto",
});

[chenjiahan]

Thanks for the suggestion, I will consider whether we should support this convention in Rsbuild, until then you can use Rspack's VirtualModulesPlugin

[chenjiahan]

Can you provide a minimal repo to reproduce the error? Thank you!

[levrik]

I know why it's happening for me now. I'm using module federation and have tools.rspack.output.publicPath: 'auto' set. But lazy compilation tries to connect to the event source URL on port 3000 while this is running on port 3001.
/rebuild-hmr respects the host where the bundle is being loaded from but lazy compilation simply seems to look into location.href by default?

[levrik]

I'm seeing that this is being handled in

rsbuild/packages/core/src/plugins/lazyCompilation.ts

Lines 36 to 50 in 15c97c7

	// replace port placeholder in `serverUrl` with actual port
	if (
	typeof options === 'object' &&
	typeof options.serverUrl === 'string' &&
	api.context.devServer
	) {
	chain.lazyCompilation({
	...options,
	serverUrl: replacePortPlaceholder(
	options.serverUrl,
	api.context.devServer.port,
	),
	});
	return;
	}

but only if you manually set dev.lazyCompilation.serverUrl and use the <port> placeholder. HMR uses the correct port by default apparently.

[chenjiahan]

Which @rsbuild/core version do you use?

[levrik]

@chenjiahan 1.5.3

[chenjiahan]

Sorry I can not reproduce this issue. Can you provide a minimal reproduction?