fix: lose closing brace when exports are unprovided (#19669)

hai-x · web-flow · commit 6801022b7bb6 · 2025-07-08T20:23:18.000+03:00
diff --git a/lib/library/AssignLibraryPlugin.js b/lib/library/AssignLibraryPlugin.js
@@ -344,9 +344,14 @@ class AssignLibraryPlugin extends AbstractLibraryPlugin {
 				);
 			}
 			result.add(
-				`  ${hasProvided ? "  " : ""}${webpackExportTarget}[__webpack_i__] = ${exports}[__webpack_i__];\n`
+				`  ${
+					hasProvided ? "  " : ""
+				}${webpackExportTarget}[__webpack_i__] = ${exports}[__webpack_i__];\n`
 			);
-			result.add(hasProvided ? "  }\n}\n" : "\n");
+			if (hasProvided) {
+				result.add("  }\n");
+			}
+			result.add("}\n");
 			result.add(
 				`Object.defineProperty(${exportTarget}, "__esModule", { value: true });\n`
 			);
diff --git a/test/configCases/library/issue-19664/index.js b/test/configCases/library/issue-19664/index.js
@@ -0,0 +1,10 @@
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.main = main;
+function main() {}
+
+// commonjs bailout
+if(this){}
+
+it("Should work when exports are unprovided", function() {
+	expect(true).toBe(true);
+});
diff --git a/test/configCases/library/issue-19664/webpack.config.js b/test/configCases/library/issue-19664/webpack.config.js
@@ -0,0 +1,8 @@
+/** @type {import("../../../../").Configuration} */
+module.exports = {
+	output: {
+		library: {
+			type: "commonjs-static"
+		}
+	}
+};
