Flash Class Arcitecture

[LiquidPixel]

Greetings,

I am trying to gain a broader understanding of the Flash class architecture by compiling a map of sorts. My question is where is the functionality of the class taking place. When I open a class from the Flash directory I get something like:

//****************************************************************************
// ActionScript Standard Library
// Mouse object
//****************************************************************************

intrinsic class Mouse
{
static function addListener(listener:Object):Void;
static function hide():Number;
static function removeListener(listener:Object):Boolean;
static function show():Number;
}


Basically definitions. Where are the bells and whistles for these methods. They have to DO something.

Any Help will be appreciated

Regards
P

 

[kennethkawamoto]

Note the "intrinsic" statement in this class file. "intrinsic" statement is used for compile-time type checking of previously defined classes. In this case the top-level class "Mouse" is defined internally (built-in) in Flash, and this external Mouse class is used to check the type assignment only. This is not a class definition file at all.

If you type in:
[tt]
var s:String = Mouse.hide();
[/tt]
Flash gives you an error saying "Type mismatch in assignment statement: found Number where String is required." This is because "hide()" is defined as "Number" in the Mouse intrinsic statement.

This is my understanding anyway.

Kenneth Kawamoto

http://www.materiaprima.co.uk

 

[LiquidPixel]

How then would someone (a developer) create custom class and still have access too it. I understand this question is ridiculous but the functionality has to be somewhere. I see the same intrinsic type when I retro some custom class ASI files.

 

[billwatson]

try reading this

http://www.cs.unc.edu/~parente/tech/tr03.shtml

may help

 

[kennethkawamoto]

> the functionality has to be somewhere

Mouse() constructor is built-in and not defined in the external class file.

Kenneth Kawamoto

http://www.materiaprima.co.uk