perf(cli): prevent some edge conditions from going wrong

packages/rspack-cli/src/utils/crossImport.ts

@@ -1,13 +1,18 @@
 import { pathToFileURL } from "url";
 import isEsmFile from "./isEsmFile";
 
+/**
+ * Dynamically import files. It will make sure it's not being compiled away by TS/Rollup.
+ */
+export const dynamicImport = new Function("path", "return import(path)");
+
 const crossImport = async <T = any>(
 	path: string,
 	cwd = process.cwd()
 ): Promise<T> => {
 	if (isEsmFile(path, cwd)) {
 		const url = pathToFileURL(path).href;
-		const { default: config } = await import(url);
+		const { default: config } = await dynamicImport(url);
 		return config;
 	} else {
 		return require(path);

packages/rspack-cli/src/utils/loadConfig.ts

@@ -37,6 +37,8 @@ const registerLoader = (configPath: string) => {
 		if (failures) {
 			const messages = failures.map(failure => failure.error.message);
 			throw new Error(`${messages.join("\n")}`);
+		} else {
+			throw error;
 		}
 	}
 };

packages/rspack-cli/tests/build/config/moonrepo/packageA/index.ts

@@ -1,4 +1,4 @@
-// @ts-ignore
+// @ts-ignore: Because dynamically create node_modules
 import testDeps from "test-deps";
 
 export default testDeps as unknown as { version: string };

packages/rspack-cli/tests/build/config/moonrepo/packageB/index.ts

@@ -1,4 +1,4 @@
-// @ts-ignore
+// @ts-ignore: Because dynamically create node_modules
 import testDeps from "test-deps";
 
 export default testDeps as unknown as { version: string };

packages/rspack-cli/tests/build/config/moonrepo/rspack.config.ts

@@ -1,6 +1,6 @@
-// @ts-ignore
+// @ts-ignore: Because dynamically create {"type": "module"}
 import packageA_deps from "./packageA/index.ts";
-// @ts-ignore
+// @ts-ignore: Because dynamically create {"type": "module"}
 import packageB_deps from "./packageB/index.ts";
 
 import path from "node:path";