The only response that accually addresses the problem is JesterXL's, he
seems to have hit the nail right on the head. It seems the only
differentiating aspect of static and prototype members is the way they treat
by refrence types.
On 12/29/05, JesterXL <[EMAIL PROTECTED]> wrote:
>
> Sorry, missed 1 of the traces:
>
> // notice the array is on the prototype,
> // thus all class instances point to it
> foo.prototype_array.push("foo_d");
> trace(foo.prototype_array);
> trace(bar.prototype_array);
>
> should be:
>
> // notice the array is on the prototype,
> // thus all class instances point to it
> foo.prototype_array.push("foo_d");
> trace(foo.prototype_array); // b, foo_d
> trace(bar.prototype_array); // b, foo_d
>
> ----- Original Message -----
> From: "JesterXL" <[EMAIL PROTECTED]>
> To: "Flashcoders mailing list" <flashcoders@chattyfig.figleaf.com>
> Sent: Thursday, December 29, 2005 3:39 PM
> Subject: Re: [Flashcoders] Flash Class Array bug - Please verify
>
>
> Nope, they are prototype scoped arrays, not static.
>
> AS1:
> function MyClass(){}
>
> AS2:
> class MyClass{}
>
> AS1 - static:
> MyClass.my_array = [];
>
> AS2 - static:
> class MyClass
> {
> static var my_array:Array = [];
> }
>
> AS1 - prototype:
> MyClass.protoytpe.my_array = [];
>
> AS2 - prototype:
> Same as above, or:
> class MyClass
> {
> var my_array:Array = [];
> }
>
> Prototype values, even in the class intstance, point to the prototype
> value
> when read, but as soon as an instance modifies this value, it makes it's
> own
> copy if it's a primitive (String, Number). If it's an Object, it still
> points to the prototype reference. Example:
>
> // The Class
> class MyClass
> {
> static var static_array:Array = ["a"];
> var prototype_array:Array = ["b"];
> var instance_array:Array;
>
> var prototype_name:String = "MyClassName";
>
> function MyClass()
> {
> instance_array = ["c"];
> }
> }
>
> // And here, the usages:
>
> import MyClass;
>
> trace(MyClass.static_array); // a
> trace(MyClass.prototype.prototype_array); // b
> trace(MyClass.prototype.instance_array); // undefined
>
> var foo:MyClass = new MyClass();
> trace(foo.prototype_array); // b
> trace(foo.instance_array); // c
>
> var bar:MyClass = new MyClass();
> trace(bar.prototype_array); // b
> trace(bar.instance_array); // c
>
> // notice the array is on the prototype,
> // thus all class instances point to it
> foo.prototype_array.push("foo_d");
> trace(foo.prototype_array);
> trace(bar.prototype_array);
>
> // however, for primitives, instances
> // will get their own copy once they
> // change it
>
> // before
> trace(foo.prototype_name); // MyClassName
> trace(bar.prototype_name); // MyClassName
> foo.prototype_name = "MegaFoo";
> // after
> trace(foo.prototype_name); // MegaFoo
> trace(bar.prototype_name); // MyClassName
>
>
>
> ----- Original Message -----
> From: "Judah Frangipane" <[EMAIL PROTECTED]>
> To: "Flashcoders mailing list" <flashcoders@chattyfig.figleaf.com>
> Sent: Thursday, December 29, 2005 3:30 PM
> Subject: [Flashcoders] Flash Class Array bug - Please verify
>
>
> It seems like Flash is creating static members out of public arrays that
> are initialized in the class declaration. Can someone confirm this? Is
> this not legal, is it implied behavior or a bug?
>
> // create a class called myClass
> class myClass {
> // initialize the array in the declarations
> var myArray:Array = new Array();
>
> function myClass {
> trace("myArray.length="+myArray.length)
> }
>
> function addToArray() {
> myArray.push(10)
> myArray.push(20)
> }
>
> }
>
>
> // on the actions frame
> import myClass
>
> var a = new myClass();
> a.addToArray();
> a.addToArray();
> a.addToArray();
> var b = new myClass();
>
> // trace outputs
> myArray.length=0
> myArray.length=3
>
> Judah
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