| 'use strict'; |
| |
| var GetIntrinsic = require('get-intrinsic'); |
| |
| var $gOPD = require('../helpers/getOwnPropertyDescriptor'); |
| var $SyntaxError = GetIntrinsic('%SyntaxError%'); |
| var $TypeError = GetIntrinsic('%TypeError%'); |
| |
| var isPropertyDescriptor = require('../helpers/isPropertyDescriptor'); |
| |
| var IsAccessorDescriptor = require('./IsAccessorDescriptor'); |
| var IsDataDescriptor = require('./IsDataDescriptor'); |
| var IsExtensible = require('./IsExtensible'); |
| var IsPropertyKey = require('./IsPropertyKey'); |
| var ToPropertyDescriptor = require('./ToPropertyDescriptor'); |
| var SameValue = require('./SameValue'); |
| var Type = require('./Type'); |
| var ValidateAndApplyPropertyDescriptor = require('./ValidateAndApplyPropertyDescriptor'); |
| |
| // https://ecma-international.org/ecma-262/6.0/#sec-ordinarydefineownproperty |
| |
| module.exports = function OrdinaryDefineOwnProperty(O, P, Desc) { |
| if (Type(O) !== 'Object') { |
| throw new $TypeError('Assertion failed: O must be an Object'); |
| } |
| if (!IsPropertyKey(P)) { |
| throw new $TypeError('Assertion failed: P must be a Property Key'); |
| } |
| if (!isPropertyDescriptor({ |
| Type: Type, |
| IsDataDescriptor: IsDataDescriptor, |
| IsAccessorDescriptor: IsAccessorDescriptor |
| }, Desc)) { |
| throw new $TypeError('Assertion failed: Desc must be a Property Descriptor'); |
| } |
| if (!$gOPD) { |
| // ES3/IE 8 fallback |
| if (IsAccessorDescriptor(Desc)) { |
| throw new $SyntaxError('This environment does not support accessor property descriptors.'); |
| } |
| var creatingNormalDataProperty = !(P in O) |
| && Desc['[[Writable]]'] |
| && Desc['[[Enumerable]]'] |
| && Desc['[[Configurable]]'] |
| && '[[Value]]' in Desc; |
| var settingExistingDataProperty = (P in O) |
| && (!('[[Configurable]]' in Desc) || Desc['[[Configurable]]']) |
| && (!('[[Enumerable]]' in Desc) || Desc['[[Enumerable]]']) |
| && (!('[[Writable]]' in Desc) || Desc['[[Writable]]']) |
| && '[[Value]]' in Desc; |
| if (creatingNormalDataProperty || settingExistingDataProperty) { |
| O[P] = Desc['[[Value]]']; // eslint-disable-line no-param-reassign |
| return SameValue(O[P], Desc['[[Value]]']); |
| } |
| throw new $SyntaxError('This environment does not support defining non-writable, non-enumerable, or non-configurable properties'); |
| } |
| var desc = $gOPD(O, P); |
| var current = desc && ToPropertyDescriptor(desc); |
| var extensible = IsExtensible(O); |
| return ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current); |
| }; |