Generics and Interfaces

[David Mouton]

HI all,

I'm writing an Interface

interface IDrawingElement
{
    var id:Float;
    var x:Float;
    var y:Float;
    var width:Float;
    var height:Float;
    var rotate:Float;
    var parent:Float;
    var scaledWidth:Float;
    var scaledHeight:Float;
   
    function clone( copy:Boolean = false ):IDrawingElement;
}

I have 2 classes that implements IDrawingElement
class A implement IDrawingElement
class B implement IDrawingElement

actually a.clone() give me an IDrawingElement and no more a A class.
So, i want to use generics in my interface too keep my class type

a.clone() -> A
b.clone() -> B

How to do that ?

thx

[Simon Krajewski]

Haxe allows covariant return types, so you can just define the return type of A.clone to be A.

Simon

[David Mouton]

Excellent :)

2013/7/16 Simon Krajewski <si...@haxe.org>

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