bdde081050
Added test to ensure that release notes are parsed properly Updated to latest dependencies to fix security vulnerability Updated GH Actions Workflow to run test before updating tag Updated README.md to reflect proper whatsnew documentation.
47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
'use strict';
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var GetIntrinsic = require('../GetIntrinsic');
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var $Array = GetIntrinsic('%Array%');
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var $species = GetIntrinsic('%Symbol.species%', true);
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var $TypeError = GetIntrinsic('%TypeError%');
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var Get = require('./Get');
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var IsArray = require('./IsArray');
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var IsConstructor = require('./IsConstructor');
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var IsInteger = require('./IsInteger');
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var Type = require('./Type');
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// https://ecma-international.org/ecma-262/6.0/#sec-arrayspeciescreate
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module.exports = function ArraySpeciesCreate(originalArray, length) {
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if (!IsInteger(length) || length < 0) {
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throw new $TypeError('Assertion failed: length must be an integer >= 0');
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}
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var len = length === 0 ? 0 : length;
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var C;
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var isArray = IsArray(originalArray);
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if (isArray) {
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C = Get(originalArray, 'constructor');
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// TODO: figure out how to make a cross-realm normal Array, a same-realm Array
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// if (IsConstructor(C)) {
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// if C is another realm's Array, C = undefined
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// Object.getPrototypeOf(Object.getPrototypeOf(Object.getPrototypeOf(Array))) === null ?
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// }
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if ($species && Type(C) === 'Object') {
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C = Get(C, $species);
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if (C === null) {
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C = void 0;
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}
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}
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}
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if (typeof C === 'undefined') {
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return $Array(len);
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}
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if (!IsConstructor(C)) {
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throw new $TypeError('C must be a constructor');
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}
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return new C(len); // Construct(C, len);
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};
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