Hi Andy,
The scope of the block is taken from were it is define not were it is
evaluate.
If no then yo couldn't write code like this for example:
aCollection detect:[:each | self maxValue < each]
One solution to what you want could be to add a parameter:
aVar := AnotherObj new
aVar setBlockTo: [:arg | Transcript show: arg]
aVar block value: self.
On Jan 30, 2008, at 6:43 PM, Andy Burnett wrote:
> I am working through the SBE book ( which is really very good) and I
> have been experimenting with using self in blocks.
>
> In simple terms I am doing something like:
> " within the initialisation of an object"
>
> aVar := AnotherObj new
> aVar setBlockTo: [Transcript show: self]
>
> Then I had a method in the first object which asked the second
> object to show the value of its block.
>
> What I was expecting was for self to be defined in terms of the
> object it was assigned to ie the second object. However it actually
> returns tv details of the object the block was coded in
>
> Somehow I don't think I am explaining myself very well. But what I
> want to know is how to think about self. Will it always point to the
> object in which the method was actually written?
>
> Thanks
> AB
> _______________________________________________
> Beginners mailing list
>
[hidden email]
>
http://lists.squeakfoundation.org/mailman/listinfo/beginners Mth
_______________________________________________
Beginners mailing list
[hidden email]
http://lists.squeakfoundation.org/mailman/listinfo/beginners
Locked
