fix: commonjs static library mode

crates/rspack_plugin_library/src/assign_library_plugin.rs

@@ -4,6 +4,7 @@ use std::sync::LazyLock;
 use regex::Regex;
 use rspack_collections::DatabaseItem;
 use rspack_core::rspack_sources::SourceExt;
+use rspack_core::ExportInfoProvided;
 use rspack_core::{
   get_entry_runtime, property_access, ApplyContext, BoxModule, ChunkUkey,
   CodeGenerationDataTopLevelDeclarations, CompilationAdditionalChunkRuntimeRequirements,
@@ -242,7 +243,7 @@ fn render_startup(
   &self,
   compilation: &Compilation,
   chunk_ukey: &ChunkUkey,
-  _module: &ModuleIdentifier,
+  module: &ModuleIdentifier,
   render_source: &mut RenderSource,
 ) -> Result<()> {
   let Some(options) = self.get_options_for_chunk(compilation, chunk_ukey)? else {
@@ -258,6 +259,24 @@ fn render_startup(
     .unwrap_or_default();
   if matches!(self.options.unnamed, Unnamed::Static) {
     let export_target = access_with_init(&full_name_resolved, self.options.prefix.len(), true);
+    let module_graph = compilation.get_module_graph();
+    let exports_info = module_graph.get_exports_info(module);
+    for export_info in exports_info.ordered_exports(&module_graph) {
+      if matches!(
+        export_info.provided(&module_graph),
+        Some(ExportInfoProvided::False)
+      ) {
+        continue;
+      }
+      let export_info_name = export_info
+        .name(&module_graph)
+        .expect("should have name")
+        .to_string();
+      let name_access = property_access([export_info_name], 0);
+      source.add(RawStringSource::from(format!(
+        "{export_target}{name_access} = __webpack_exports__{export_access}{name_access};\n"
+      )));
+    }
     source.add(RawStringSource::from(format!(
       "Object.defineProperty({export_target}, '__esModule', {{ value: true }});\n",
     )));

packages/rspack-test-tools/tests/configCases/library/cjs-static/index.js

@@ -0,0 +1,10 @@
+const fs = require("fs")
+export const foo1 = () => {}
+export const foo2 = () => {}
+const bar = "bar";
+export default bar
+
+it("should success compile and work",()=>{
+	const output = fs.readFileSync(__filename).toString();
+	expect(output.match(/exports(\[|\.)/g).length).toBe(3)
+})

packages/rspack-test-tools/tests/configCases/library/cjs-static/rspack.config.js

@@ -0,0 +1,7 @@
+/** @type {import("@rspack/core").Configuration} */
+module.exports = {
+	target: "node",
+	output: {
+		library: { type: "commonjs-static" }
+	}
+};

tests/webpack-test/configCases/library/1-use-library/webpack.config.js

@@ -314,24 +314,23 @@ module.exports = (env, { testPath }) => [
 			})
 		]
 	},
-	// TODO: amd esm import exports presence check
-	// {
-	// 	resolve: {
-	// 		alias: {
-	// 			library: path.resolve(
-	// 				testPath,
-	// 				"../0-create-library/commonjs-static-external.js"
-	// 			),
-	// 			external: path.resolve(__dirname, "node_modules/external.js")
-	// 		}
-	// 	},
-	// 	plugins: [
-	// 		new webpack.DefinePlugin({
-	// 			NAME: JSON.stringify("commonjs-static with external"),
-	// 			TEST_EXTERNAL: true
-	// 		})
-	// 	]
-	// },
+	{
+		resolve: {
+			alias: {
+				library: path.resolve(
+					testPath,
+					"../0-create-library/commonjs-static-external.js"
+				),
+				external: path.resolve(__dirname, "node_modules/external.js")
+			}
+		},
+		plugins: [
+			new webpack.DefinePlugin({
+				NAME: JSON.stringify("commonjs-static with external"),
+				TEST_EXTERNAL: true
+			})
+		]
+	},
 	{
 		resolve: {
 			alias: {