CODEWITHSUNDEEP
actionscript-3functionreference
Ricardo
Ricardo

Reputation: 301

Can I change a function reference of a class in ActionScript-3?

Ok, I have a class like this:

public class Foo extends Sprite {
    public function Foo(x:Number, y:Number):void {
        this.x = x;
        this.y = y;
    }

    public function bar():void {
        trace("I'm a happy class.");
    }
}

And I want to do something like this:

var foo:Foo = new Foo();
foo.bar = function():void {
              trace("I'm a happier class.");
          }

I'm getting this error from the compiler: "Error: Illegal assignment to function bar". How can I change the public function bar on the fly?

Upvotes: 1

Views: 483

Answers (2)

Tyler Egeto
Tyler Egeto

Reputation: 5495

You can't do that in ActionScript. There is a work around though, try something like this:

public dynamic class Foo{
 public function Foo() {
  this.bar = function():void { trace("bar"); }
 }
}

var f:Foo = new Foo();
f.bar();
f.bar = function():void { trace("baz"); }
f.bar();

EDIT: OR THIS

public class Foo{
    public var bar:Function;

    public function Foo() {
     this.bar = function():void { trace("bar"); }
    }
}

var f:Foo = new Foo();
f.bar();
f.bar = function():void { trace("baz"); }
f.bar();

Goodluck!

Upvotes: 6

sberry
sberry

Reputation: 132138

I think the class needs to be declared as dynamic

Upvotes: 1

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