document.write('
');
document.write('//First, the basic key to all this...
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document.write('Function.prototype.setScope = function (scope) {
');
document.write(' //Somone give a better way to do this; eval\'ing is so
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document.write(' // bad for code quickness.
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document.write(' with (scope) { eval(\'var ret=\'+this.toString()); }
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document.write(' scope.member=ret;
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document.write(' return ret;
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document.write('}
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document.write('
');
document.write('/* Compatibility function to stand in for
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document.write('Prototype\'s highly useful bind function */
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document.write('if (typeof Function.prototype.bind !== \'function\')
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document.write(' Function.prototype.bind = function (context) {
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document.write(' var __method=this;
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document.write(' return function () {
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document.write(' return __method.apply(this,arguments);
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document.write(' }
');
document.write(' }
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document.write('
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document.write('
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document.write('
');
document.write('function Class(def) {
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document.write(' var ext = function (dst,src,scope, context) {
');
document.write(' //Specially tweaked cheapo Object.extend
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document.write(' if (typeof src==\'undefined\') return dst;
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document.write(' var tmpScope={};
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document.write(' for (var i in src)
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document.write(' if (typeof src[i]==\'function\' && typeof scope != \'undefined\') {
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document.write(' tmpScope=ext({memberName:i},scope);
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document.write(' dst[i]=src[i].setScope(tmpScope);
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document.write(' if (typeof context==\'object\')
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document.write(' dst[i]=dst[i].bind(context);
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document.write(' } else
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document.write(' dst[i]=src[i];
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document.write(' return dst;
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document.write(' }
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document.write(' var instantiate;
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document.write(' var pSelf={};
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document.write(' var ret=function () {
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document.write(' instantiate.apply(this,arguments);
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document.write(' }
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document.write(' ret.classDef=def;
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document.write(' //Variables which will hold exposed scopes
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document.write(' var publicStatic={self:ret,scope:\'public\',type:\'static\'};
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document.write(' var privateStatic={self:ret,pSelf:pSelf,scope:\'private\',type:\'static\'};
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document.write('
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document.write(' with (publicStatic) {
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document.write(' instantiate=function () {
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document.write(' var i,pThis={};
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document.write(' var publicMember={
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document.write(' self:ret,scope:\'public\',
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document.write(' type:\'instance\'
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document.write(' };
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document.write(' var privateMember={
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document.write(' self:ret,pSelf:pSelf,pThis:pThis,
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document.write(' scope:\'private\',type:\'instance\'
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document.write(' };
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document.write(' if (typeof def.members == \'object\') {
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document.write(' ext(this,def.members.blind,publicMember);
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document.write(' ext(this,def.members.privelidged,privateMember);
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document.write(' ext(pThis,def.members.private,privateMember);
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document.write(' if (!!this.initialize)
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document.write(' this.initialize.apply(this,arguments);
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document.write(' }
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document.write(' }
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document.write(' }
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document.write(' if (!!def.static) {
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document.write(' for (i in def.static.blind) {
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document.write(' console.log(i);
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document.write(' }
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document.write(' ext(ret,def.static.blind,publicStatic);
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document.write(' ext(ret,def.static.privelidged,privateStatic);
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document.write(' ext(pSelf,def.static.private,privateStatic);
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document.write(' }
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document.write(' return ret;
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document.write('
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document.write('}
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document.write('// Class extend. Takes the previously stored
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document.write('// classDef, extends it with newDef, and creates a new Class
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document.write('Class.extend = function (base,newDef) {
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document.write(' var defs=[base.classDef,newDef];
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document.write(' var combDef={};
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document.write(' var mode,scope;
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document.write(' for (i=0; i<defs.length; i++) {
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document.write(' for (mode in defs[i]) {
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document.write(' if (typeof defs[i][mode]==\'object\' && typeof combDef[mode]!==\'undefined\') {
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document.write(' combDef[mode]={};
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document.write(' for (scope in defs[i][mode])
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document.write(' combDef[mode][scope]=defs[i][mode][scope];
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document.write(' } else
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document.write(' combDef[mode]=defs[i][mode];
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document.write(' }
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document.write(' }
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document.write(' return Class(combDef);
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document.write('}
; I hope that means something to someone. Meanwhile, here\'s a quick testsuite.
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document.write('
/* Quick and dirty compat function to get output
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document.write('out regardless of interpreter */
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document.write('if (typeof console==\'undefined\') {
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document.write(' var console={};
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document.write(' if (typeof WScript != \'undefined\') {
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document.write(' console.log = function (a) {
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document.write(' WScript.Echo(a);
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document.write(' }
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document.write(' }else{
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document.write(' console.log=function (a) {
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document.write(' alert(a);
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document.write(' }
');
document.write(' }
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document.write('}
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document.write('
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document.write('
');
document.write('/* Test class, using one of each type of member */
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document.write('
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document.write('var X = Class({
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document.write(' members: {
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document.write(' //Defined within constructor,
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document.write(' blind: {
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document.write(' //given class (self), instance (this)
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document.write(' //accessible as instance.member
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document.write(' //accessible to instance as this.member
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document.write(' cantSee: function () {
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document.write(' //Blind-scope members are for public
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document.write(' //instance variables and the functions that
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document.write(' //mess with only them
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document.write(' var name=\'X\'+(type==\'instance\'?\'#\':\'::\')+\'(\'+scope+\')\'+memberName;
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document.write(' console.log(
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document.write(' name+": I can"+
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document.write(' (typeof self.cantSee!=\'undefined\'?"":"\'t")+
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document.write(' " see public statics"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
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document.write(' (typeof pSelf!=\'undefined\'?"":"\'t")+
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document.write(' " see private statics"
');
document.write(' );
');
document.write(' console.log(
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document.write(' name+": I can"+
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document.write(' (typeof this.cantSee!=\'undefined\'?"":"\'t")+
');
document.write(' " see public members"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
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document.write(' (typeof pThis!=\'undefined\'?"":"\'t")+
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document.write(' " see private members"
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document.write(' );
');
document.write(' }
');
document.write(' },
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document.write(' privelidged: {
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document.write(' //given class (self), instance (this),
');
document.write(' //class private (pSelf), instance private (pThis)
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document.write(' //accessible as instance.member
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document.write(' //accessible to instance as this.member
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document.write(' //Note that collisions are possible between blind
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document.write(' //and privelidged members, but not private
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document.write(' initialize: function () {
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document.write(' this.cantSee();
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document.write(' var name=\'X\'+(type==\'instance\'?\'#\':\'::\')+\'(\'+scope+\')\'+memberName;
');
document.write(' console.log(
');
document.write(' name+": I can"+
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document.write(' (typeof self.cantSee!=\'undefined\'?"":"\'t")+
');
document.write(' " see public statics"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof pSelf.inHiding!=\'undefined\'?"":"\'t")+
');
document.write(' " see private statics"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof this.cantSee!=\'undefined\'?"":"\'t")+
');
document.write(' " see public members"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof pThis.inHiding!=\'undefined\'?"":"\'t")+
');
document.write(' " see private members"
');
document.write(' );
');
document.write(' pThis.inHiding();
');
document.write(' }
');
document.write(' },
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document.write(' private: {
');
document.write(' //given class (self), instance (this),
');
document.write(' //class private (pSelf), instance private (pThis)
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document.write(' //accessible to instance as pThis.member
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document.write(' //should not exist as far as DOM tree is concerned
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document.write(' inHiding: function () {
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document.write(' var name=\'X\'+(type==\'instance\'?\'#\':\'::\')+\'(\'+scope+\')\'+memberName;
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof self.cantSee!=\'undefined\'?"":"\'t")+
');
document.write(' " see public statics"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof pSelf.inHiding!=\'undefined\'?"":"\'t")+
');
document.write(' " see private statics"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof this.cantSee!=\'undefined\'?"":"\'t")+
');
document.write(' " see public members"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof pThis.inHiding!=\'undefined\'?"":"\'t")+
');
document.write(' " see private members"
');
document.write(' );
');
document.write('
');
document.write(' self.cantSee();
');
document.write(' }
');
document.write(' }
');
document.write(' },
');
document.write(' static: {
');
document.write(' blind: {
');
document.write(' //given class (self)
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document.write(' //accessible as className.member
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document.write(' //accessible to self as self.member
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document.write(' cantSee: function () {
');
document.write(' //Probably best to stick publicly useful utility
');
document.write(' //functions and class constants here
');
document.write(' var name=\'X\'+(type==\'instance\'?\'#\':\'::\')+\'(\'+scope+\')\'+memberName;
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof self.cantSee!=\'undefined\'?"":"\'t")+
');
document.write(' " see public statics"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof pSelf!=\'undefined\'?"":"\'t")+
');
document.write(' " see private statics"
');
document.write(' );
');
document.write(' self.canSee();
');
document.write(' }
');
document.write(' },
');
document.write(' privelidged: {
');
document.write(' //given class (self), class private (pSelf)
');
document.write(' //accessible as className.member
');
document.write(' //accessible to self as self.member
');
document.write(' //Note that collisions are possible between blind
');
document.write(' //and privelidged statics, but not private
');
document.write(' canSee: function () {
');
document.write(' var name=\'X\'+(type==\'instance\'?\'#\':\'::\')+\'(\'+scope+\')\'+memberName;
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof self.cantSee!=\'undefined\'?"":"\'t")+
');
document.write(' " see public statics"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof pSelf.inHiding!=\'undefined\'?"":"\'t")+
');
document.write(' " see private statics"
');
document.write(' );
');
document.write(' pSelf.inHiding();
');
document.write(' }
');
document.write(' },
');
document.write(' private: {
');
document.write(' //given class (self), class private (pSelf)
');
document.write(' //accessible to self as pSelf.member
');
document.write(' //should not exist as far as DOM tree is concerned
');
document.write(' inHiding: function () {
');
document.write(' var name=\'X\'+(type==\'instance\'?\'#\':\'::\')+\'(\'+scope+\')\'+memberName;
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof self.cantSee!=\'undefined\'?"":"\'t")+
');
document.write(' " see public statics"
');
document.write(' );
');
document.write(' console.log(
');
document.write(' name+": I can"+
');
document.write(' (typeof pSelf.inHiding!=\'undefined\'?"":"\'t")+
');
document.write(' " see private statics"
');
document.write(' );
');
document.write(' console.log(\'Test ends\');
');
document.write(' }
');
document.write(' }
');
document.write('
');
document.write(' }
');
document.write('});
');
document.write('//Call the initializer!
');
document.write('var x = new X();
');
document.write('
');