mass Framework class模块v12
最近为类工厂升级,为它添加了许多时麾的功能,如方法链,extend子类生产器。
//=========================================
// 类工厂模块 v12 by 司徒正美
//==========================================
define("class", ["lang"], function($) {
function bridge() {
}
var fnTest = /mass/.test(function() {
mass;
}) ? /\b_super|_superApply\b/ : /.*/;
var hash = {
inherit: function(parent, init) {
//继承一个父类,并将它放进_init列表中,并添加setOptions原型方法
if (typeof parent == "function") {
for (var i in parent) { //继承类成员
this[i] = parent[i];
}
bridge.prototype = parent.prototype;
this.prototype = new bridge; //继承原型成员
this._super = parent; //指定父类
if (!this.__init__) {
this.__init__ = [parent]
}
}
this.__init__ = (this.__init__ || []).concat();
if (init) {
this.__init__.push(init);
}
this.toString = function() {
return(init || bridge) + "";
}
var proto = this.fn = this.prototype;
proto.extend = hash.extend;
proto.setOptions = function() {
var first = arguments[0];
if (typeof first === "string") {
first = this[first] || (this[first] = {});
[].splice.call(arguments, 0, 1, first);
} else {
[].unshift.call(arguments, this);
}
$.Object.merge.apply(null, arguments);
return this;
}
return proto.constructor = this;
},
extend: function(module) {
//添加一组原型方法
var target = this;
Object.keys(module).forEach(function(name) {
var fn = target[name], fn2 = module[name]
if (typeof fn === "funciton" && typeof fn2 === "function" && fnTest.test(fn2)) {
var __super = function() { //创建方法链
return fn.apply(this, arguments);
};
var __superApply = function(args) {
return fn.apply(this, args);
};
target[name] = function() {
var t1 = this._super;
var t2 = this._superApply;
this._super = __super;
this._superApply = __superApply;
var ret = fn2.apply(this, arguments);
this._super = t1;
this._superApply = t2;
return ret;
};
} else {
target[name] = fn2;
}
});
return this;
}
};
function getSubClass(obj) {
return $.factory(this, obj);
}
$.factory = function(parent, obj) {
if (arguments.length === 1) {
obj = parent;
parent = null;
}
var statics = obj.statics;//静态成员扩展包
var init = obj.init; //构造器
delete obj.init;
delete obj.statics;
var klass = function() {
for (var i = 0, init; init = klass.__init__[i++]; ) {
init.apply(this, arguments);
}
};
hash.inherit.call(klass, parent, init);//继承了父类原型成员与类成员
var fn = klass.fn;
var __init__ = klass.__init__;
$.mix(klass, statics);//添加类成员
klass.prototype = klass.fn = fn;
klass.__init__ = __init__;
klass.fn.extend(obj);
klass.mix = $.mix;
klass.extend = getSubClass;
return klass;
};
$.mix($.factory, hash);
return $
});
例子:
require("class", function($) {
var Animal = $.factory({
init: function(name) {
this.name = name
},
getName: function() {
return this.name;
},
setName: function(name) {
this.name = name;
}
});
var a = new Animal("zzz");
var Dog = $.factory(Animal, {
init: function(name, age) {
this.age = age;
},
getAge: function() {
return this.age;
},
setAge: function(age) {
this.age = age;
}
});
var dog = new Dog("dog", 222);
console.log(dog);
})
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