Generates namespace objects when not tree-shaking (#4175)

src/Module.ts

@@ -621,6 +621,7 @@ export default class Module {
 
 	includeAllInBundle(): void {
 		this.ast!.include(createInclusionContext(), true);
+		this.includeAllExports(false);
 	}
 
 	isIncluded(): boolean {

test/form/samples/no-treeshake-namespace-object/_config.js

@@ -0,0 +1,6 @@
+module.exports = {
+	description: 'generates namespace objects when not tree-shaking',
+	options: {
+		treeshake: false
+	}
+};

test/form/samples/no-treeshake-namespace-object/_expected.js

@@ -0,0 +1,11 @@
+function foo() {}
+
+var namespace = /*#__PURE__*/Object.freeze({
+	__proto__: null,
+	foo: foo
+});
+
+const a = 1;
+const b = 2;
+
+export { a, b, namespace as ns1, namespace as ns2 };

test/form/samples/no-treeshake-namespace-object/main.js

@@ -0,0 +1,8 @@
+import * as ns1 from './namespace';
+
+export { ns1 };
+
+export * as ns2 from './namespace';
+
+export const a = 1;
+export const b = 2;

test/form/samples/no-treeshake-namespace-object/namespace.js

@@ -0,0 +1 @@
+export function foo() {}