[Laszlo-dev] delegates *must* have an argument?

Raju Bitter rajubitter at me.com
Thu Mar 19 08:14:41 PDT 2009


There have a been a few changes with AS3 for function parameters:
http://help.adobe.com/en_US/ActionScript/3.0_ProgrammingAS3_Flex/WS5b3ccc516d4fbf351e63e3d118a9b90204-7f56.html

It should be in the reference, at least that has been said last year:
http://markmail.org/message/ddxot2ycdmxugzmq
>
> When creating a delegate `new LzDelegate(<object>, <methodname>)`,  
> <methodname> must be a method of one argument, because it will be  
> invoked by LzDelegate#execute with one argument (typically the  
> argument that is passed to LzEvent#sendEvent when that delegate is  
> registered to receive events). If <methodname> is called elsewhere,  
> it will have to be called with a suitable argument).
> (I have added this to the RefGuide entry for LzDelegate)

- Raju

On Mar 19, 2009, at 3:57 PM, Sebastian Wagner wrote:

> same mistery for me but I think its because in AS3 you got to match
> the exact number of arguments. Otherwise the Code will be not
> compiled.
>
> sebastian
>
> 2009/3/19 Sarah Allen <sarah at ultrasaurus.com>:
>> So, I've got this code...
>>
>>    <method name="_activateTimeDel">
>>        //Debug.write("mediastream._activeTimeDel()", this);
>>        if (!this._timedel) {
>>            this._timedel = new LzDelegate(this, "_updateTime");
>>        }
>>
>>        this._timedel.unregisterAll();
>>        this._timedel.register(lz.Idle, "onidle");
>>    </method>
>>
>> I had noticed that _updateTime had an unused (and undocumented)  
>> argument 'v'
>> which I removed to make the code cleaner and clearer.  However, in  
>> the swf9
>> runtime, I learn that delegates *must* be declared with an argument:
>> WARNING: Invalid delegate: mediastream name: ms._updateTime =>  
>> Function
>> (must accept one argument)
>>
>> So, I go look up in the reference to see what the argument is and  
>> find no
>> mention of it.  Is this a doc omission?
>>
>> just curious... for now, I'll just put back the mysterious 'v'
>>
>> Sarah
>>
>
>
>
> -- 
> Sebastian Wagner
> http://www.webbase-design.de
> http://openmeetings.googlecode.com
> http://www.laszlo-forum.de
> seba.wagner at gmail.com
>



More information about the Laszlo-dev mailing list