source: imaps-frontend/node_modules/es-abstract/2016/ObjectCreate.js@ d565449

'use strict';

var GetIntrinsic = require('get-intrinsic');

var $ObjectCreate = GetIntrinsic('%Object.create%', true);
var $TypeError = require('es-errors/type');
var $SyntaxError = require('es-errors/syntax');

var IsArray = require('./IsArray');
var Type = require('./Type');

var forEach = require('../helpers/forEach');

var SLOT = require('internal-slot');

var hasProto = require('has-proto')();

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

module.exports = function ObjectCreate(proto, internalSlotsList) {
        if (proto !== null && Type(proto) !== 'Object') {
                throw new $TypeError('Assertion failed: `proto` must be null or an object');
        }
        var slots = arguments.length < 2 ? [] : internalSlotsList; // step 1
        if (arguments.length >= 2 && !IsArray(slots)) {
                throw new $TypeError('Assertion failed: `internalSlotsList` must be an Array');
        }

        var O;
        if ($ObjectCreate) {
                O = $ObjectCreate(proto);
        } else if (hasProto) {
                O = { __proto__: proto };
        } else {
                if (proto === null) {
                        throw new $SyntaxError('native Object.create support is required to create null objects');
                }
                var T = function T() {};
                T.prototype = proto;
                O = new T();
        }

        if (slots.length > 0) {
                forEach(slots, function (slot) {
                        SLOT.set(O, slot, void undefined);
                });
        }

        return O; // step 6
};