Comments on: AS2 Lazy Construction Weirdness

By: Keith Peters

Keith Peters — Tue, 14 Jun 2005 18:14:56 +0000

Robert takes the prize.

By: Ash

Ash — Tue, 14 Jun 2005 18:03:56 +0000

Haha.. thanks Robert, I knew I was missing something really basic. Talk about over-thinking a problem..!

By: Robert Penner

Robert Penner — Tue, 14 Jun 2005 17:43:27 +0000

The compiler will add a call to super() in subclasses if omitted.

By: cedric

cedric — Tue, 14 Jun 2005 16:33:54 +0000

I know it is … but I was *just* doubting this would work with an ‘ExtendedWidget’ that doesn’t calls super in its constructor … your composition made me go south

thanks!

By: Ash

Ash — Tue, 14 Jun 2005 16:20:41 +0000

Yep, thats the goal!

By: cedric

cedric — Tue, 14 Jun 2005 16:18:38 +0000

I see …

so if ExtendedWidget extends Widget and does not call ’super()’ in its constructor, it will still initialize eventDispatcher ??

By: Ash

Ash — Tue, 14 Jun 2005 16:11:40 +0000

Hi cedric,

The Control class is just an example class to show things working, sorry for not being clear.
There would be other classes not shown here that extend Widget.

In the control class you can replace “myWidget = new Widget();” with “myWidget = new ExtendedWidget();”

By: cedric

cedric — Tue, 14 Jun 2005 16:06:43 +0000

you are not extending the ‘Control’ class from ‘Widget’
using composition (as you did hereabove) always calls the constructor function, hence this always works, but it shouldn’t work if you ‘extend’ Control from Widget