mirror of
https://gitee.com/durcframework/SOP.git
synced 2025-08-11 21:57:56 +08:00
126 lines
3.6 KiB
JavaScript
126 lines
3.6 KiB
JavaScript
/**
|
||
* 面相对象辅助类，可实现类的创建，继承，方法重写
|
||
*
|
||
<pre>
|
||
//-------------------------
|
||
// JS类的创建,继承
|
||
//-------------------------
|
||
|
||
// 例子1:-------------------------
|
||
// 创建一个父类
|
||
var Person = Class.create({
|
||
// 构造函数
|
||
init:function(option){
|
||
this.name = option.name;
|
||
}
|
||
,getName:function() {
|
||
return this.name;
|
||
}
|
||
});
|
||
|
||
// 声明类实例
|
||
var Jim = new Person({name:'Jim'});
|
||
console.log('Jim name:' + Jim.getName())
|
||
|
||
//例子2:-------------------------
|
||
|
||
// 创建一个类,继承Person类，并重写getName
|
||
var Man = Class.create({
|
||
init:function(option) {
|
||
this._super(option);// 调用父类构造函数
|
||
this.age = option.age;
|
||
}
|
||
// 重写父类方法
|
||
,getName:function() {
|
||
// 调用父类的getName()
|
||
var name = this._super();
|
||
return '我重写了getName方法：{'+name+'}';
|
||
}
|
||
},Person);
|
||
|
||
var man = new Man({name:'Tom',age:22});
|
||
console.log('man name:' + man.getName())
|
||
|
||
console.log('Jim instanceof Person: ' + (Jim instanceof Person));
|
||
console.log('man instanceof Person: ' + (man instanceof Person));
|
||
</pre>
|
||
*
|
||
*/
|
||
exports.Class = (function () {
|
||
// ------Class Creation------
|
||
var initializing = false,
|
||
fnTest = /xyz/.test(function () {
|
||
xyz;
|
||
}) ? /\b_super\b/ : /.*/;
|
||
|
||
// The base Class implementation (does nothing)
|
||
this.Class = function () {
|
||
};
|
||
|
||
// Create a new Class that inherits from this class
|
||
Class.extend = function (prop) {
|
||
var _super = this.prototype;
|
||
|
||
// Instantiate a base class (but only create the instance,
|
||
// don't run the init constructor)
|
||
initializing = true;
|
||
var prototype = new this();
|
||
initializing = false;
|
||
|
||
// Copy the properties over onto the new prototype
|
||
for (var name in prop) {
|
||
// Check if we're overwriting an existing function
|
||
prototype[name] = typeof prop[name] == "function" && typeof _super[name] == "function" && fnTest.test(prop[name]) ? (function (name, fn) {
|
||
return function () {
|
||
var tmp = this._super;
|
||
|
||
// Add a new ._super() method that is the same method
|
||
// but on the super-class
|
||
this._super = _super[name];
|
||
|
||
// The method only need to be bound temporarily, so we
|
||
// remove it when we're done executing
|
||
var ret = fn.apply(this, arguments);
|
||
this._super = tmp;
|
||
|
||
return ret;
|
||
};
|
||
})(name, prop[name]) : prop[name];
|
||
}
|
||
|
||
// The dummy class constructor
|
||
function Class() {
|
||
// All construction is actually done in the init method
|
||
if (!initializing && this.init) this.init.apply(this, arguments);
|
||
}
|
||
|
||
// Populate our constructed prototype object
|
||
Class.prototype = prototype;
|
||
|
||
// Enforce the constructor to be what we expect
|
||
Class.prototype.constructor = Class;
|
||
|
||
// And make this class extendable
|
||
Class.extend = arguments.callee;
|
||
|
||
return Class;
|
||
};// ------Class Creation end------
|
||
|
||
|
||
|
||
return {
|
||
/**
|
||
* 创建一个类
|
||
* @param option 类方法,json数据
|
||
* @param parentClass 父类
|
||
*/
|
||
create: function (option, parentClass) {
|
||
if (!parentClass) {
|
||
parentClass = Class;
|
||
}
|
||
return parentClass.extend(option);
|
||
}
|
||
};
|
||
|
||
})();
|