| '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 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 |
| } |
| ); |
| }; |