| // Copyright (C) 2015 André Bargull. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-arraybuffer.prototype.slice |
| description: > |
| Throws a TypeError if species constructor is not an object. |
| info: | |
| ArrayBuffer.prototype.slice ( start, end ) |
| |
| ... |
| 13. Let ctor be SpeciesConstructor(O, %ArrayBuffer%). |
| 14. ReturnIfAbrupt(ctor). |
| ... |
| |
| 7.3.20 SpeciesConstructor ( O, defaultConstructor ) |
| ... |
| 6. Let S be Get(C, @@species). |
| 7. ReturnIfAbrupt(S). |
| 8. If S is either undefined or null, return defaultConstructor. |
| 9. If IsConstructor(S) is true, return S. |
| 10. Throw a TypeError exception. |
| features: [Symbol.species] |
| ---*/ |
| |
| var speciesConstructor = {}; |
| |
| var arrayBuffer = new ArrayBuffer(8); |
| arrayBuffer.constructor = speciesConstructor; |
| |
| function callSlice() { |
| arrayBuffer.slice(); |
| } |
| |
| speciesConstructor[Symbol.species] = true; |
| assert.throws(TypeError, callSlice, "`constructor[Symbol.species]` value is Boolean"); |
| |
| speciesConstructor[Symbol.species] = ""; |
| assert.throws(TypeError, callSlice, "`constructor[Symbol.species]` value is String"); |
| |
| speciesConstructor[Symbol.species] = Symbol(); |
| assert.throws(TypeError, callSlice, "`constructor[Symbol.species]` value is Symbol"); |
| |
| speciesConstructor[Symbol.species] = 1; |
| assert.throws(TypeError, callSlice, "`constructor[Symbol.species]` value is Number"); |