source: frontend/node_modules/es-abstract/2016/OrdinaryDefineOwnProperty.js

'use strict';

var $gOPD = require('gopd');
var $SyntaxError = require('es-errors/syntax');
var $TypeError = require('es-errors/type');
var isObject = require('es-object-atoms/isObject');

var isPropertyDescriptor = require('../helpers/records/property-descriptor');

var IsAccessorDescriptor = require('./IsAccessorDescriptor');
var IsExtensible = require('./IsExtensible');
var isPropertyKey = require('../helpers/isPropertyKey');
var ToPropertyDescriptor = require('./ToPropertyDescriptor');
var SameValue = require('./SameValue');
var ValidateAndApplyPropertyDescriptor = require('./ValidateAndApplyPropertyDescriptor');

// https://262.ecma-international.org/6.0/#sec-ordinarydefineownproperty

module.exports = function OrdinaryDefineOwnProperty(O, P, Desc) {
        if (!isObject(O)) {
                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(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);
};