constructor.js (1326B)
1 // Copyright (C) 2014 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 es6id: 14.5 5 description: > 6 class constructor 7 ---*/ 8 var count = 0; 9 class C { 10 constructor() { 11 assert.sameValue( 12 Object.getPrototypeOf(this), 13 C.prototype, 14 "`Object.getPrototypeOf(this)` returns `C.prototype`" 15 ); 16 count++; 17 } 18 } 19 assert.sameValue( 20 C, 21 C.prototype.constructor, 22 "The value of `C` is `C.prototype.constructor`" 23 ); 24 var desc = Object.getOwnPropertyDescriptor(C.prototype, 'constructor'); 25 assert.sameValue(desc.configurable, true, "The value of `desc.configurable` is `true`, after executing `var desc = Object.getOwnPropertyDescriptor(C.prototype, 'constructor');`"); 26 assert.sameValue(desc.enumerable, false, "The value of `desc.enumerable` is `false`, after executing `var desc = Object.getOwnPropertyDescriptor(C.prototype, 'constructor');`"); 27 assert.sameValue(desc.writable, true, "The value of `descr.writable` is `true`, after executing `var desc = Object.getOwnPropertyDescriptor(C.prototype, 'constructor');`"); 28 29 var c = new C(); 30 assert.sameValue(count, 1, "The value of `count` is `1`"); 31 assert.sameValue( 32 Object.getPrototypeOf(c), 33 C.prototype, 34 "`Object.getPrototypeOf(c)` returns `C.prototype`" 35 ); 36 37 reportCompare(0, 0);