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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Flags: --harmony-classes | 5 // Flags: --harmony-classes |
| 6 | 6 |
| 7 (function TestBasics() { | 7 (function TestBasics() { |
| 8 var C = class C {} | 8 var C = class C {} |
| 9 assertEquals(typeof C, 'function'); | 9 assertEquals(typeof C, 'function'); |
| 10 assertEquals(C.__proto__, Function.prototype); | 10 assertEquals(C.__proto__, Function.prototype); |
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| 617 class Derived extends Base {} | 617 class Derived extends Base {} |
| 618 var object = new Derived; | 618 var object = new Derived; |
| 619 assertEquals(1, calls); | 619 assertEquals(1, calls); |
| 620 | 620 |
| 621 calls = 0; | 621 calls = 0; |
| 622 Derived(); | 622 Derived(); |
| 623 assertEquals(1, calls); | 623 assertEquals(1, calls); |
| 624 })(); | 624 })(); |
| 625 | 625 |
| 626 | 626 |
| 627 (function TestDefaultConstructorArguments() { | |
| 628 var args, self; | |
| 629 class Base { | |
| 630 constructor() { | |
| 631 self = this; | |
| 632 args = arguments; | |
| 633 } | |
| 634 } | |
| 635 class Derived extends Base {} | |
| 636 | |
| 637 new Derived; | |
| 638 assertEquals(0, args.length); | |
| 639 | |
| 640 new Derived(0, 1, 2); | |
| 641 assertEquals(3, args.length); | |
| 642 assertTrue(self instanceof Derived); | |
| 643 | |
| 644 var arr = new Array(1e5); | |
| 645 var obj = {}; | |
| 646 Derived.apply(obj, arr); | |
| 647 assertEquals(1e5, args.length); | |
| 648 assertEquals(obj, self); | |
| 649 })(); | |
| 650 | |
| 651 | |
| 652 (function TestDefaultConstructorArguments2() { | |
| 653 var args; | |
| 654 class Base { | |
| 655 constructor(x, y) { | |
| 656 args = arguments; | |
| 657 } | |
| 658 } | |
| 659 class Derived extends Base {} | |
| 660 | |
| 661 new Derived; | |
| 662 assertEquals(0, args.length); | |
| 663 | |
| 664 new Derived(1); | |
| 665 assertEquals(1, args.length); | |
| 666 assertEquals(1, args[0]); | |
| 667 | |
| 668 new Derived(1, 2, 3); | |
| 669 assertEquals(3, args.length); | |
| 670 assertEquals(1, args[0]); | |
| 671 assertEquals(2, args[1]); | |
| 672 assertEquals(3, args[2]); | |
| 673 })(); | |
| 674 | |
| 675 | |
| 676 /* TODO(arv): Implement | 627 /* TODO(arv): Implement |
| 677 (function TestNameBindingInConstructor() { | 628 (function TestNameBindingInConstructor() { |
| 678 class C { | 629 class C { |
| 679 constructor() { | 630 constructor() { |
| 680 assertThrows(function() { | 631 assertThrows(function() { |
| 681 C = 42; | 632 C = 42; |
| 682 }, ReferenceError); | 633 }, ReferenceError); |
| 683 } | 634 } |
| 684 } | 635 } |
| 685 new C(); | 636 new C(); |
| 686 })(); | 637 })(); |
| 687 */ | 638 */ |
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