| // 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.slice |
| description: > |
| Throws if O.constructor returns a non-Object and non-undefined value |
| info: | |
| 22.2.3.24 %TypedArray%.prototype.slice ( start, end ) |
| |
| ... |
| 9. Let A be ? TypedArraySpeciesCreate(O, « count »). |
| ... |
| |
| 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"). |
| 3. If C is undefined, return defaultConstructor. |
| 4. If Type(C) is not Object, throw a TypeError exception. |
| ... |
| includes: [testTypedArray.js] |
| features: [Symbol, TypedArray] |
| ---*/ |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var sample = new TA([40, 41, 42, 43]); |
| |
| sample.constructor = 42; |
| assert.throws(TypeError, function() { |
| sample.slice(); |
| }, "42"); |
| |
| sample.constructor = "1"; |
| assert.throws(TypeError, function() { |
| sample.slice(); |
| }, "string"); |
| |
| sample.constructor = null; |
| assert.throws(TypeError, function() { |
| sample.slice(); |
| }, "null"); |
| |
| sample.constructor = NaN; |
| assert.throws(TypeError, function() { |
| sample.slice(); |
| }, "NaN"); |
| |
| sample.constructor = false; |
| assert.throws(TypeError, function() { |
| sample.slice(); |
| }, "false"); |
| |
| sample.constructor = Symbol("1"); |
| assert.throws(TypeError, function() { |
| sample.slice(); |
| }, "symbol"); |
| }); |