| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| es6id: 21.2.5.11 |
| description: Invocation of custom species constructor |
| info: | |
| [...] |
| 5. Let C be SpeciesConstructor(rx, %RegExp%). |
| [...] |
| 13. Let splitter be Construct(C, «rx, newFlags»). |
| [...] |
| |
| ES6 Section 7.3.20 SpeciesConstructor ( O, defaultConstructor ) |
| |
| 1. Assert: Type(O) is Object. |
| 2. Let C be Get(O, "constructor"). |
| 3. ReturnIfAbrupt(C). |
| 4. If C is undefined, return defaultConstructor. |
| 5. If Type(C) is not Object, throw a TypeError exception. |
| 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. |
| features: [Symbol.split, Symbol.species] |
| ---*/ |
| |
| var thisVal, args, result; |
| var re = /x/iy; |
| re.constructor = function() {}; |
| re.constructor[Symbol.species] = function() { |
| thisVal = this; |
| args = arguments; |
| return /[db]/y; |
| }; |
| |
| result = RegExp.prototype[Symbol.split].call(re, 'abcde'); |
| |
| assert(Array.isArray(result)); |
| assert.sameValue(result.length, 3); |
| assert.sameValue(result[0], 'a'); |
| assert.sameValue(result[1], 'c'); |
| assert.sameValue(result[2], 'e'); |
| |
| assert(thisVal instanceof re.constructor[Symbol.species]); |
| assert.sameValue(args.length, 2); |
| assert.sameValue(args[0], re); |
| assert.sameValue(args[1], 'iy'); |