| /** PURE_IMPORTS_START .._util_root PURE_IMPORTS_END */ |
| import { root } from '../util/root'; |
| export function symbolIteratorPonyfill(root) { |
| var Symbol = root.Symbol; |
| if (typeof Symbol === 'function') { |
| if (!Symbol.iterator) { |
| Symbol.iterator = Symbol('iterator polyfill'); |
| } |
| return Symbol.iterator; |
| } |
| else { |
| // [for Mozilla Gecko 27-35:](https://mzl.la/2ewE1zC) |
| var Set_1 = root.Set; |
| if (Set_1 && typeof new Set_1()['@@iterator'] === 'function') { |
| return '@@iterator'; |
| } |
| var Map_1 = root.Map; |
| // required for compatability with es6-shim |
| if (Map_1) { |
| var keys = Object.getOwnPropertyNames(Map_1.prototype); |
| for (var i = 0; i < keys.length; ++i) { |
| var key = keys[i]; |
| // according to spec, Map.prototype[@@iterator] and Map.orototype.entries must be equal. |
| if (key !== 'entries' && key !== 'size' && Map_1.prototype[key] === Map_1.prototype['entries']) { |
| return key; |
| } |
| } |
| } |
| return '@@iterator'; |
| } |
| } |
| export var iterator = /*@__PURE__*/ symbolIteratorPonyfill(root); |
| /** |
| * @deprecated use iterator instead |
| */ |
| export var $$iterator = iterator; |
| //# sourceMappingURL=iterator.js.map |