DefinePropertyOrThrow.js

'use strict';

var GetIntrinsic = require('../GetIntrinsic');

var $TypeError = GetIntrinsic('%TypeError%');

var isPropertyDescriptor = require('../helpers/isPropertyDescriptor');
var DefineOwnProperty = require('../helpers/DefineOwnProperty');

var FromPropertyDescriptor = require('./FromPropertyDescriptor');
var IsAccessorDescriptor = require('./IsAccessorDescriptor');
var IsDataDescriptor = require('./IsDataDescriptor');
var IsPropertyKey = require('./IsPropertyKey');
var SameValue = require('./SameValue');
var ToPropertyDescriptor = require('./ToPropertyDescriptor');
var Type = require('./Type');

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

module.exports = function DefinePropertyOrThrow(O, P, desc) {
	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 Desc = isPropertyDescriptor({
		Type: Type,
		IsDataDescriptor: IsDataDescriptor,
		IsAccessorDescriptor: IsAccessorDescriptor
	}, desc) ? desc : ToPropertyDescriptor(desc);
	if (!isPropertyDescriptor({
		Type: Type,
		IsDataDescriptor: IsDataDescriptor,
		IsAccessorDescriptor: IsAccessorDescriptor
	}, Desc)) {
		throw new $TypeError('Assertion failed: Desc is not a valid Property Descriptor');
	}

	return DefineOwnProperty(
		IsDataDescriptor,
		SameValue,
		FromPropertyDescriptor,
		O,
		P,
		Desc
	);
};