fixes #10104

lib/optimize/ConcatenatedModule.js

@@ -330,6 +330,7 @@ class ConcatenatedModule extends Module {
 		);
 
 		this.dependencies = [];
+		this.blocks = [];
 
 		this.warnings = [];
 		this.errors = [];
@@ -348,6 +349,10 @@ class ConcatenatedModule extends Module {
 				)) {
 					this.dependencies.push(d);
 				}
+				// populate blocks
+				for (const d of m.blocks) {
+					this.blocks.push(d);
+				}
 				// populate file dependencies
 				if (m.buildInfo.fileDependencies) {
 					for (const file of m.buildInfo.fileDependencies) {

test/__snapshots__/StatsTestCases.test.js.snap

@@ -2311,7 +2311,7 @@ Entrypoint entry = entry.js
 `;
 
 exports[`StatsTestCases should print correct stats for scope-hoisting-multi 1`] = `
-"Hash: 2fded77648d7f30051efea8940ce0e83e06c8e38
+"Hash: 2fded77648d7f30051ef5adfc4dbbfffbf889924
 Child
     Hash: 2fded77648d7f30051ef
     Time: Xms
@@ -2330,7 +2330,7 @@ Child
      [9] ./common_lazy_shared.js 25 bytes {2} {3} {4} [built]
     [10] ./common_lazy.js 25 bytes {2} {3} [built]
 Child
-    Hash: ea8940ce0e83e06c8e38
+    Hash: 5adfc4dbbfffbf889924
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
     Entrypoint first = vendor.js first.js
@@ -2358,7 +2358,7 @@ Child
 `;
 
 exports[`StatsTestCases should print correct stats for side-effects-issue-7428 1`] = `
-"Hash: 901a17990846f905bacb
+"Hash: 9899fa8456a2179a8d8c
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
   Asset       Size  Chunks             Chunk Names

test/configCases/concatenate-modules/load-chunk-function/a.js

@@ -0,0 +1,2 @@
+import "./c";
+export default import("./b");

test/configCases/concatenate-modules/load-chunk-function/b.js

@@ -0,0 +1 @@
+export default 'b';

test/configCases/concatenate-modules/load-chunk-function/c.js

@@ -0,0 +1 @@
+export default 'c';

test/configCases/concatenate-modules/load-chunk-function/entry1.js

@@ -0,0 +1,7 @@
+import a from "./a";
+import b from "./b";
+
+it("should load fine", () => {
+	expect(b).toBe("b");
+	return a.then(a => expect(a).toEqual(nsObj({ default: "b" })));
+});

test/configCases/concatenate-modules/load-chunk-function/entry2.js

@@ -0,0 +1,5 @@
+import a from "./a";
+
+it("should load fine", () => {
+	return a.then(a => expect(a).toEqual(nsObj({ default: "b" })));
+});

test/configCases/concatenate-modules/load-chunk-function/test.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+	findBundle: function(i, options) {
+		return ["entry1.js", "entry2.js"];
+	}
+};

test/configCases/concatenate-modules/load-chunk-function/webpack.config.js

@@ -0,0 +1,12 @@
+module.exports = {
+	entry: {
+		entry1: "./entry1",
+		entry2: "./entry2"
+	},
+	output: {
+		filename: "[name].js"
+	},
+	optimization: {
+		concatenateModules: true
+	}
+};