31 lines
883 B
JavaScript
31 lines
883 B
JavaScript
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'use strict';
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// Should get iterator record of a set-like object before cloning this
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// https://bugs.webkit.org/show_bug.cgi?id=289430
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module.exports = function (METHOD_NAME) {
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try {
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// eslint-disable-next-line es/no-set -- needed for test
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var baseSet = new Set();
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var setLike = {
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size: 0,
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has: function () { return true; },
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keys: function () {
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// eslint-disable-next-line es/no-object-defineproperty -- needed for test
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return Object.defineProperty({}, 'next', {
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get: function () {
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baseSet.clear();
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baseSet.add(4);
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return function () {
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return { done: true };
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};
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}
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});
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}
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};
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var result = baseSet[METHOD_NAME](setLike);
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return result.size !== 1 || result.values().next().value !== 4;
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} catch (error) {
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return false;
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}
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};
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