// Copyright 2015 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function testInFunctionDeclaration() { var calls = 0; function f() { (() => { calls++; assertEquals(2, arguments.length); assertEquals('a', arguments[0]); assertEquals('b', arguments[1]); })(); } f('a', 'b'); assertEquals(1, calls); calls = 0; new f('a', 'b'); assertEquals(1, calls); })(); (function testInFunctionExpression() { var calls = 0; var f = function() { (() => { calls++; assertEquals(2, arguments.length); assertEquals('a', arguments[0]); assertEquals('b', arguments[1]); })(); } f('a', 'b'); assertEquals(1, calls); })(); (function testInConstructor() { 'use strict'; var calls = 0; class C { constructor() { (() => { calls++; assertEquals(2, arguments.length); assertEquals('a', arguments[0]); assertEquals('b', arguments[1]); })(); } } new C('a', 'b'); assertEquals(1, calls); })(); (function testInSetter() { 'use strict'; var calls = 0; var o = { set x(_) { (() => { calls++; assertEquals(1, arguments.length); assertEquals('a', arguments[0]); })(); } } o.x = 'a'; assertEquals(1, calls); })(); (function testMappedArguments() { var calls = 0; function f(x) { x = 'c'; (() => { calls++; assertEquals(2, arguments.length); assertEquals('c', arguments[0]); x = 'a'; assertEquals('a', arguments[0]); assertEquals('b', arguments[1]); })(); } f('a', 'b'); assertEquals(1, calls); })(); (function testUnMappedArguments() { 'use strict'; var calls = 0; function f(x) { x = 'c'; (() => { calls++; assertEquals(2, arguments.length); assertEquals('a', arguments[0]); assertEquals('b', arguments[1]); })(); } f('a', 'b'); assertEquals(1, calls); })(); (function testClosure() { var calls = 0; function f(x) { return () => { calls++; assertEquals(2, arguments.length); assertEquals('a', arguments[0]); assertEquals('b', arguments[1]); }; } f('a', 'b')(); assertEquals(1, calls); })(); (function testClosureMappedArguments() { var calls = 0; function f(x) { x = 'c'; return () => { calls++; assertEquals(2, arguments.length); assertEquals('c', arguments[0]); x = 'a'; assertEquals('a', arguments[0]); assertEquals('b', arguments[1]); }; } f('a', 'b')(); assertEquals(1, calls); })(); (function testParamNamedArguments() { var calls = 0; function f(arguments) { (() => { calls++; assertEquals('a', arguments); })(); } f('a'); assertEquals(1, calls); })();