| // 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-%typedarray%.prototype.subarray |
| description: > |
| get @@species from found constructor |
| info: | |
| 22.2.3.27 %TypedArray%.prototype.subarray( begin , end ) |
| |
| ... |
| 17. Return ? TypedArraySpeciesCreate(O, argumentsList). |
| |
| 22.2.4.7 TypedArraySpeciesCreate ( exemplar, argumentList ) |
| |
| ... |
| 3. Let constructor be ? SpeciesConstructor(exemplar, defaultConstructor). |
| ... |
| |
| 7.3.20 SpeciesConstructor ( O, defaultConstructor ) |
| |
| 1. Assert: Type(O) is Object. |
| 2. Let C be ? Get(O, "constructor"). |
| ... |
| 5. Let S be ? Get(C, @@species). |
| ... |
| includes: [testTypedArray.js] |
| features: [Symbol.species, TypedArray] |
| ---*/ |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var sample = new TA(2); |
| var calls = 0; |
| |
| sample.constructor = {}; |
| |
| Object.defineProperty(sample.constructor, Symbol.species, { |
| get: function() { |
| calls++; |
| } |
| }); |
| |
| sample.subarray(0); |
| |
| assert.sameValue(calls, 1); |
| }); |