/**
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* @fileoverview
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* This module provides a function to make a constructor
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* that can inherit from the other constructors like the CLASS easily.
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* @author NHN.
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* FE Development Lab <dl_javascript@nhn.com>
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*/
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'use strict';
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var inherit = require('./inheritance').inherit;
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var extend = require('./object').extend;
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/**
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* Help a constructor to be defined and to inherit from the other constructors
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* @param {*} [parent] Parent constructor
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* @param {Object} props Members of constructor
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* @param {Function} props.init Initialization method
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* @param {Object} [props.static] Static members of constructor
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* @returns {*} Constructor
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* @memberof tui.util
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* @example
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* //-- #1. Get Module --//
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* var util = require('tui-code-snippet'); // node, commonjs
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* var util = tui.util; // distribution file
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*
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* //-- #2. Use property --//
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* var Parent = util.defineClass({
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* init: function() { // constuructor
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* this.name = 'made by def';
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* },
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* method: function() {
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* // ...
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* },
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* static: {
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* staticMethod: function() {
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* // ...
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* }
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* }
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* });
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*
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* var Child = util.defineClass(Parent, {
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* childMethod: function() {}
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* });
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*
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* Parent.staticMethod();
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*
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* var parentInstance = new Parent();
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* console.log(parentInstance.name); //made by def
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* parentInstance.staticMethod(); // Error
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*
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* var childInstance = new Child();
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* childInstance.method();
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* childInstance.childMethod();
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*/
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function defineClass(parent, props) {
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var obj;
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if (!props) {
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props = parent;
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parent = null;
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}
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obj = props.init || function() {};
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if (parent) {
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inherit(obj, parent);
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}
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if (props.hasOwnProperty('static')) {
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extend(obj, props['static']);
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delete props['static'];
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}
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extend(obj.prototype, props);
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return obj;
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}
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module.exports = defineClass;
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