| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-array.prototype.filter |
| description: > |
| An undefined value for the @@species constructor triggers the creation of |
| an Array exotic object |
| info: | |
| [...] |
| 5. Let A be ? ArraySpeciesCreate(O, 0). |
| [...] |
| |
| 9.4.2.3 ArraySpeciesCreate |
| |
| [...] |
| 5. Let C be ? Get(originalArray, "constructor"). |
| [...] |
| 7. If Type(C) is Object, then |
| a. Let C be ? Get(C, @@species). |
| b. If C is null, let C be undefined. |
| 8. If C is undefined, return ? ArrayCreate(length). |
| features: [Symbol.species] |
| ---*/ |
| |
| var a = []; |
| var result; |
| |
| a.constructor = {}; |
| a.constructor[Symbol.species] = undefined; |
| |
| result = a.filter(function() {}); |
| |
| assert.sameValue(Object.getPrototypeOf(result), Array.prototype); |
| assert(Array.isArray(result), 'result is an Array exotic object'); |