// Workaround for http://code.google.com/p/v8/issues/detail?id=2804

'use strict';

var create = Object.create, shim;

if (!require('./set-prototype-of/is-implemented')()) {
	shim = require('./set-prototype-of/shim');
}

module.exports = (function () {
	var nullObject, props, desc;
	if (!shim) return create;
	if (shim.level !== 1) return create;

	nullObject = {};
	props = {};
	desc = { configurable: false, enumerable: false, writable: true,
		value: undefined };
	Object.getOwnPropertyNames(Object.prototype).forEach(function (name) {
		if (name === '__proto__') {
			props[name] = { configurable: true, enumerable: false, writable: true,
				value: undefined };
			return;
		}
		props[name] = desc;
	});
	Object.defineProperties(nullObject, props);

	Object.defineProperty(shim, 'nullPolyfill', { configurable: false,
		enumerable: false, writable: false, value: nullObject });

	return function (prototype, props) {
		return create((prototype === null) ? nullObject : prototype, props);
	};
}());