Do not rewrite new.target (#4679)

src/ast/nodes/MetaProperty.ts

@@ -14,6 +14,7 @@ import type * as NodeType from './NodeType';
 import { NodeBase } from './shared/Node';
 
 const FILE_PREFIX = 'ROLLUP_FILE_URL_';
+const IMPORT = 'import';
 
 export default class MetaProperty extends NodeBase {
 	declare meta: Identifier;
@@ -25,8 +26,11 @@ export default class MetaProperty extends NodeBase {
 	private referenceId: string | null = null;
 
 	getReferencedFileName(outputPluginDriver: PluginDriver): string | null {
-		const { metaProperty } = this;
-		if (metaProperty?.startsWith(FILE_PREFIX)) {
+		const {
+			meta: { name },
+			metaProperty
+		} = this;
+		if (name === IMPORT && metaProperty?.startsWith(FILE_PREFIX)) {
 			return outputPluginDriver.getFileName(metaProperty.slice(FILE_PREFIX.length));
 		}
 		return null;
@@ -43,7 +47,7 @@ export default class MetaProperty extends NodeBase {
 	include(): void {
 		if (!this.included) {
 			this.included = true;
-			if (this.meta.name === 'import') {
+			if (this.meta.name === IMPORT) {
 				this.context.addImportMeta(this);
 				const parent = this.parent;
 				const metaProperty = (this.metaProperty =
@@ -62,13 +66,15 @@ export default class MetaProperty extends NodeBase {
 			context: {
 				module: { id: moduleId }
 			},
+			meta: { name },
 			metaProperty,
 			parent,
 			preliminaryChunkId,
 			referenceId,
 			start,
 			end
 		} = this;
+		if (name !== IMPORT) return;
 		const chunkId = preliminaryChunkId!;
 
 		if (referenceId) {

test/form/samples/new-target-meta-property/_expected/amd.js

@@ -0,0 +1,11 @@
+define((function () { 'use strict';
+
+	class Foo {
+		constructor() {
+			console.log(new.target.name);
+		}
+	}
+
+	new Foo();
+
+}));

test/form/samples/new-target-meta-property/_expected/cjs.js

@@ -0,0 +1,9 @@
+'use strict';
+
+class Foo {
+	constructor() {
+		console.log(new.target.name);
+	}
+}
+
+new Foo();

test/form/samples/new-target-meta-property/_expected/iife.js

@@ -0,0 +1,12 @@
+(function () {
+	'use strict';
+
+	class Foo {
+		constructor() {
+			console.log(new.target.name);
+		}
+	}
+
+	new Foo();
+
+})();

test/form/samples/new-target-meta-property/_expected/system.js

@@ -0,0 +1,16 @@
+System.register([], (function () {
+	'use strict';
+	return {
+		execute: (function () {
+
+			class Foo {
+				constructor() {
+					console.log(new.target.name);
+				}
+			}
+
+			new Foo();
+
+		})
+	};
+}));

test/form/samples/new-target-meta-property/_expected/umd.js

@@ -0,0 +1,14 @@
+(function (factory) {
+	typeof define === 'function' && define.amd ? define(factory) :
+	factory();
+})((function () { 'use strict';
+
+	class Foo {
+		constructor() {
+			console.log(new.target.name);
+		}
+	}
+
+	new Foo();
+
+}));

test/function/samples/new-target-meta/_config.js

@@ -0,0 +1,3 @@
+module.exports = {
+	description: 'does not change new.target usages'
+};

test/function/samples/new-target-meta/main.js

@@ -0,0 +1,5 @@
+function Foo() {
+	assert.strictEqual(new.target, Foo);
+}
+
+new Foo();