[Seaside] Unexpected callback behavior

Randal L. Schwartz merlyn at stonehenge.com
Sat Dec 8 19:12:21 UTC 2007

>>>>> "Sebastian" == Sebastian Sastre <ssastre at seaswork.com> writes:

Sebastian> 	At first I was suspecting about the #fixCallbackTemps but the block
Sebastian> was already malformed when reach that point. Investigating about this I'm
Sebastian> surprised to found that it's related to Squeak being unable to do properly
Sebastian> this smalltalk code:

Sebastian> 	stuff := #(foo bar).
Sebastian> 	results := OrderedCollection new.
Sebastian> 	1 to: 2 do:[:i|
Sebastian> 		results add: [Transcript cr; nextPutAll: (stuff at:
Sebastian> i);flush]].
Sebastian> 	results do:[:e| e value]

I believe that this is a place where you need the fixTemps call on the block.

Did you try this as:

1 to: 2 do: [ :i |
  results add: [
    Transcript cr;
       nextPutAll: (stuff at: Sebastian> i);flush
       ] fixTemps

As in, notice the difference between:

((1 to: 3) collect: [:i | [i]]) collect: [:aBlock | aBlock value]

 => #(3 3 3)


((1 to: 3) collect: [:i | [i] fixTemps]) collect: [:aBlock | aBlock value]

 => #(1 2 3)

Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
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