HORIZON PROJECT

'use strict';

var propIsEnumerable = Object.prototype.propertyIsEnumerable;

function ToObject(val) {

        if (val == null) {

                throw new TypeError('Object.assign cannot be called with null or undefined');

        }

        return Object(val);

}

function ownEnumerableKeys(obj) {

        var keys = Object.getOwnPropertyNames(obj);

        if (Object.getOwnPropertySymbols) {

                keys = keys.concat(Object.getOwnPropertySymbols(obj));

        }

        return keys.filter(function (key) {

                return propIsEnumerable.call(obj, key);

        });

}

module.exports = Object.assign || function (target, source) {

        var from;

        var keys;

        var to = ToObject(target);

        for (var s = 1; s < arguments.length; s++) {

                from = arguments[s];

                keys = ownEnumerableKeys(Object(from));

                for (var i = 0; i < keys.length; i++) {

                        to[keys[i]] = from[keys[i]];

                }

        }

        return to;

};