MAINHACK

Viewing / Editing File: index.js

function set(obj, key, val) {
	if (typeof val.value === 'object') val.value = klona(val.value);
	if (!val.enumerable || val.get || val.set || !val.configurable || !val.writable || key === '__proto__') {
		Object.defineProperty(obj, key, val);
	} else obj[key] = val.value;
}

function klona(x) {
	if (typeof x !== 'object') return x;

var i=0, k, list, tmp, str=Object.prototype.toString.call(x);

if (str === '[object Object]') {
		tmp = Object.create(x.__proto__ || null);
	} else if (str === '[object Array]') {
		tmp = Array(x.length);
	} else if (str === '[object Set]') {
		tmp = new Set;
		x.forEach(function (val) {
			tmp.add(klona(val));
		});
	} else if (str === '[object Map]') {
		tmp = new Map;
		x.forEach(function (val, key) {
			tmp.set(klona(key), klona(val));
		});
	} else if (str === '[object Date]') {
		tmp = new Date(+x);
	} else if (str === '[object RegExp]') {
		tmp = new RegExp(x.source, x.flags);
	} else if (str === '[object DataView]') {
		tmp = new x.constructor( klona(x.buffer) );
	} else if (str === '[object ArrayBuffer]') {
		tmp = x.slice(0);
	} else if (str.slice(-6) === 'Array]') {
		// ArrayBuffer.isView(x)
		// ~> `new` bcuz `Buffer.slice` => ref
		tmp = new x.constructor(x);
	}

if (tmp) {
		for (list=Object.getOwnPropertySymbols(x); i < list.length; i++) {
			set(tmp, list[i], Object.getOwnPropertyDescriptor(x, list[i]));
		}

for (i=0, list=Object.getOwnPropertyNames(x); i < list.length; i++) {
			if (Object.hasOwnProperty.call(tmp, k=list[i]) && tmp[k] === x[k]) continue;
			set(tmp, k, Object.getOwnPropertyDescriptor(x, k));
		}
	}

return tmp || x;
}

exports.klona = klona;

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Viewing / Editing File: index.js

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