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'use strict'; var GetIntrinsic = require('get-intrinsic'); var $TypeError = GetIntrinsic('%TypeError%'); var DefineOwnProperty = require('../helpers/DefineOwnProperty'); var FromPropertyDescriptor = require('./FromPropertyDescriptor'); var OrdinaryGetOwnProperty = require('./OrdinaryGetOwnProperty'); var IsDataDescriptor = require('./IsDataDescriptor'); var IsExtensible = require('./IsExtensible'); var IsPropertyKey = require('./IsPropertyKey'); var SameValue = require('./SameValue'); var Type = require('./Type'); // https://ecma-international.org/ecma-262/6.0/#sec-createdataproperty module.exports = function CreateDataProperty(O, P, V) { if (Type(O) !== 'Object') { throw new $TypeError('Assertion failed: Type(O) is not Object'); } if (!IsPropertyKey(P)) { throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true'); } var oldDesc = OrdinaryGetOwnProperty(O, P); var extensible = !oldDesc || IsExtensible(O); var nonConfigurable = oldDesc && !oldDesc['[[Configurable]]']; if (nonConfigurable || !extensible) { return false; } return DefineOwnProperty( IsDataDescriptor, SameValue, FromPropertyDescriptor, O, P, { '[[Configurable]]': true, '[[Enumerable]]': true, '[[Value]]': V, '[[Writable]]': true } ); };