'use strict'; var GetIntrinsic = require('../GetIntrinsic'); var $gOPD = GetIntrinsic('%Object.getOwnPropertyDescriptor%'); var $TypeError = GetIntrinsic('%TypeError%'); var DefineOwnProperty = require('../helpers/DefineOwnProperty'); var FromPropertyDescriptor = require('./FromPropertyDescriptor'); var IsDataDescriptor = require('./IsDataDescriptor'); var IsExtensible = require('./IsExtensible'); var IsPropertyKey = require('./IsPropertyKey'); var SameValue = require('./SameValue'); var Type = require('./Type'); // https://www.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 = $gOPD(O, P); var extensible = oldDesc || IsExtensible(O); var immutable = oldDesc && (!oldDesc.writable || !oldDesc.configurable); if (immutable || !extensible) { return false; } return DefineOwnProperty( IsDataDescriptor, SameValue, FromPropertyDescriptor, O, P, { '[[Configurable]]': true, '[[Enumerable]]': true, '[[Value]]': V, '[[Writable]]': true } ); };