# all files / packages/web3-core/src/ extend.js

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     /*
     This file is part of web3.js.

     web3.js is free software: you can redistribute it and/or modify
     it under the terms of the GNU Lesser General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.

     web3.js is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU Lesser General Public License for more details.

     You should have received a copy of the GNU Lesser General Public License
     along with web3.js.  If not, see <http://www.gnu.org/licenses/>.
     */
    /**
     * @file extend.js
     * @author Fabian Vogelsteller <fabian@ethereum.org>
     * @date 2017
     */

    "use strict";

    var formatters = require('web3-core-helpers').formatters;
    var Method = require('web3-core-method');
    var utils = require('web3-utils');

    var extend = function (pckg) {
        /* jshint maxcomplexity:5 */
        var ex = function (extension) {

            var extendedObject;
            if (extension.property) {
                Eif (!pckg[extension.property]) {
                    pckg[extension.property] = {};
                }
                extendedObject = pckg[extension.property];
            } else {
                extendedObject = pckg;
            }

            Eif (extension.methods) {
                extension.methods.forEach(function (method) {
                    Eif(!(method instanceof Method)) {
                        method = new Method(method);
                    }

                    method.attachToObject(extendedObject);
                    method.setRequestManager(pckg._requestManager);
                });
            }

            return pckg;
        };

        ex.formatters = formatters;
        ex.utils = utils;
        ex.Method = Method;

        return ex;
    };

    module.exports = extend;