［原创］类似Java语法的Javascript框架js5（v2)
第二版本：1.添加了 jimport 类似实现java的import关键字
2.jclass的改进：
[*]单个参数为返回查找的类，
[*]第一个参数为""时，产生匿名函数。
[*]从第三个参数到倒数第二个参数为mixin,且所有的mixin将按照顺序传入类定义的闭包函数的第二个参数到最后一个参数。
附上代码：
var Js5 = {version:"5.0.0"};var __cpackage__;var __classes__ = {};var __iclasses__ = {};var __imports__ = [];Js5.apply = function(o, c) { if (o && c && typeof c == 'object') { for (var p in c) { o = c; } } return o;};(function() { Js5.apply(Js5, { applyIf : function(o, c) { if (o) { for (var p in c) { if (!Js5.isDefined(o)) { o = c; } } } return o; }, extend : function() { var oc = Object.prototype.constructor; return function(sb, sp, overrides) { var coverrides = overrides; if (!overrides) { coverrides = sp; sp = sb; } var F = function() { },sbp,spp = sp.prototype; F.prototype = spp; coverrides = coverrides(spp) || {}; if (!overrides) { sb = coverrides.constructor != oc ? coverrides.constructor : function() { sp.apply(this, arguments); }; } sbp = sb.prototype = new F(); sbp.constructor = sb; sb.superclass = spp; if (spp.constructor == oc) { spp.constructor = sp; } sbp.superclass = (function() { return spp; }); Js5.override(sb, coverrides);// extend coverrides return sb; } }(), mixin:function() { var oc = Object.prototype.constructor; return function(mixins, sb, sp, overrides) { if (!Js5.isArray(mixins)) { mixins = ; } var coverrides = overrides; if (!overrides) { coverrides = sp; sp = sb; } var F = function() { },sbp,spp = sp.prototype; F.prototype = spp; mixins.unshift(spp); coverrides = coverrides.apply(this, mixins) || {}; if (!overrides) { sb = coverrides.constructor != oc ? coverrides.constructor : function() { sp.apply(this, arguments); }; } sbp = sb.prototype = new F(); sbp.constructor = sb; sb.superclass = spp; if (spp.constructor == oc) { spp.constructor = sp; } sbp.superclass = (function() { return spp; }); Js5.override(sb, coverrides);// extend coverrides mixins.shift(); Js5.each(mixins, function(mixin) { Js5.applyIf(sbp, mixin); }); return sb; } }(), override: function(origclass, overrides) { if (overrides) { var p = origclass.prototype; Js5.apply(p, overrides); } }, /*override : function(origclass, overrides) { if (overrides) { var p = origclass.prototype; overrides = overrides(p.superclass); Js5.apply(p, overrides); if (Js5.isIE && overrides.hasOwnProperty('toString')) { p.toString = overrides.toString; } } },*/ isString : function(v) { return typeof v === 'string'; }, isBoolean : function(v) { return typeof v === 'boolean'; }, isElement : function(v) { return !!v && v.tagName; }, isDefined : function(v) { return typeof v !== 'undefined'; }, isObject : function(v) { return !!v && Object.prototype.toString.call(v) === ''; }, isDate : function(v) { return toString.apply(v) === ''; }, isPrimitive : function(v) { return Js5.isString(v) || Js5.isNumber(v) || Js5.isBoolean(v); }, isNumber : function(v) { return typeof v === 'number' && isFinite(v); }, isEmpty : function(v, allowBlank) { return v === null || v === undefined || ((Js5.isArray(v) && !v.length)) || (!allowBlank ? v === '' : false); }, isArray : function(v) { return toString.apply(v) === ''; }, isIterable : function(v) { //check for array or arguments if (Js5.isArray(v) || v.callee) { return true; } //check for node list type if (/NodeList|HTMLCollection/.test(toString.call(v))) { return true; } //NodeList has an item and length property //IXMLDOMNodeList has nextNode method, needs to be checked first. return ((typeof v.nextNode != 'undefined' || v.item) && Js5.isNumber(v.length)); }, each : function(array, fn, scope) { if (Js5.isEmpty(array, true)) { return []; } if (!Js5.isIterable(array) || Js5.isPrimitive(array)) { array = ; } for (var i = 0, len = array.length; i < len; i++) { if (fn.call(scope || array, array, i, array) === false) { return i; } } return []; }, namespace : function() { var o, d; Js5.each(arguments, function(v) { d = v.split("."); o = window] = window] || {}; Js5.each(d.slice(1), function(v2) { o = o = o || {}; }); }); return o; }, nameclass:function(c) { if (__classes__) return __classes__; var d = c.split("."); var o = window] = window] || {}; Js5.each(d.slice(1, d.length - 1), function(v2) { o = o = o || {}; }); return __classes__ = o]; }, importclass:function(c) { if (__classes__) return __classes__; if (__iclasses__) return __iclasses__; var d = c.split("."); var o = window] = window] || {}; var name = d; Js5.each(d.slice(1, d.length - 1), function(v2) { o = o = o || {}; }); if (o) { o = __classes__ = o; } else { Js5.each(__imports__, function(i) { if ((o = i)) { return false; } }); __iclasses__ = o; } return o; } }); Js5.ns = Js5.namespace;})();/** * p1:String ==>package name * p2..p-1,Object ==>imports * p-1,function ==> package body */function jpackage() { var l = arguments.length,i = 0; if (l == 0) return; var pkf = arguments; if (Js5.isString(arguments)) { __cpackage__ = Js5.namespace(arguments); i = 1; } else { __cpackage__ = window; i = 0; } var args = [],vs,ip; Js5.each(Array.prototype.slice.call(arguments, i, l - 1), function(v) { if (Js5.isString(v)) { vs = v.split(";"); Js5.each(vs, function(v2) { if (v2.substr(-2) == ".*") { ip = Js5.namespace(v2.substring(0, v2.length - 2)); __imports__.push(ip); args.push(ip); } else { args.push(Js5.importclass(v2)); } }); } else if (Js5.isArray(v)) { args = args.concat(v); } else { args.push(v); } }); pkf.apply(__cpackage__, args); __cpackage__ = null; __imports__ = []; __iclasses__ = {};}function jimport() { var args = [],vs,ip; __imports__ = []; __iclasses__ = {}; Js5.each(arguments, function(v) { if (Js5.isString(v)) { vs = v.split(";"); Js5.each(vs, function(v2) { if (v2.substr(-2) == ".*") { ip = Js5.namespace(v2.substring(0, v2.length - 2)); __imports__.push(ip); args.push(ip); } else { args.push(Js5.importclass(v2)); } }); } else if (Js5.isArray(v)) { args = args.concat(v); } else { args.push(v); } }); return args;}/** * p1:String ==>class name * p2,String ==>same package;Object * p3,function ==> */function jclass() { var l = arguments.length,i = 0; if (l == 0) { throw new Error(" invalid arguments"); } if (l == 1) { return Js5.importclass(arguments); } var clf = arguments; var c; if (Js5.isString(arguments)) { c = __cpackage__; } else { c = window; } var p; if (l >= 3) { var name = arguments; if (Js5.isString(name)) { p = __cpackage__; if (!p) { p = Js5.importclass(name); } } else { p = arguments; } } else { p = Object; } if (!p) { throw new Error(" unrecognized parent class"); } var mixins = []; if (l >= 4) { var vs; var mc; Js5.each(Array.prototype.slice.call(arguments, 2, l - 1), function(v) { if (Js5.isString(v)) { vs = v.split(","); Js5.each(vs, function(v2) { mc = Js5.importclass(v2); if (mc) { mixins.push(mc.prototype); } }); } else { mixins.push(v.prototype); } }); } var cls = Js5.mixin(mixins, p, clf); if (arguments) { c] = cls; } return cls;}function jnew() { var l = arguments.length,i = 0; if (l == 0) return {}; var args = Array.prototype.slice.call(arguments, 1); var name = arguments; var cls; if (Js5.isString(name)) { if (__cpackage__ && __cpackage__) { cls = __cpackage__; } if (!cls) { cls = Js5.importclass(name); } if (!cls) { throw new Error(" unrecognizedclass"); } } else { cls = name; } /*var temp = function() { }; var constructor = cls.prototype.constructor; var instanceCls = function() { return constructor.apply(this, args); }; temp.prototype = cls.prototype; instanceCls.prototype = new temp(); instanceCls.prototype.constructor = instanceCls; return new instanceCls();*/ var obj = {}; Js5.override(obj, cls); obj.__proto__ = cls.prototype; cls.apply(obj, args); return obj;}
例子：
var jui = {};jpackage("jui", function() { jclass("Component", function() { return { constructor:function(x) { console.log("Component:" + x); }, show:function() { console.log("Component"); } } }); jclass("Container", "Component", function(_supr) { return { constructor:function(x) { console.log("Container:" + x); _supr.constructor.call(this, x); } }; });});jpackage("jui", function() { jclass("Window", "Container", function(_supr) { return { show:function() { console.log("Window"); } } });});jpackage("jui.form", function() { jimport("jui.*"); jclass("TextField", "Component", function(_supr) { return { show:function() { console.log("TextField"); } } });});jpackage("js5.util", function() { jclass("Observable", function(_supr) { return { constructor:function() { console.log("Observable.constructor"); }, on:function() { console.log("Observable.on"); }, show:function() { console.log("Observable.show"); } } });});jpackage("jui.ex", jimport("jui.Window;jui.*;jui.form.*"), function(_W, j) { jclass("Window", "jui.Window", "js5.util.Observable", function(_supr, _ob) { return { constructor:function(x) { console.log("jui.ex.Window.constructor"); _supr.constructor.call(this, x); _ob.constructor.call(this); }, show:function() { console.log("Window Ex"); _supr.show(); } } }); var MyWindow = jclass("", "jui.Window", function() { return { show:function() { console.log("anonymous myWindow"); } } }); var x = jnew("Window", "package jui.ex.Window"); x.show(); x.on(); x = new MyWindow(); x.show(); jclass("jui.Window").superclass.constructor.call(this, "111111111111") x = jnew(jui.Window, "jui.Window : new in package, use complete class path"); x.show(); x = new jui.Window("jui.Window : new in package, use complete class path"); x.show(); x = jnew("jui.Window", "jui.Window: new in package, use complete class path"); x.show(); x = new j["Window"]("jui.Window: new in package, use import jui.*"); x.show(); x = new _W("jui.Window:new in package, use import jui.Window"); x.show(); for (var i = 1; i <= 5; i++) { x = jnew("TextField", "jui.form.TextFieldnew in package,use import jui.form.*"); x.show(); }});var x = jnew("jui.ex.Window", "global jui.ex.Window");x.show();
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