[squeak-dev] #ensure: What would you expect?
Bert Freudenberg
bert at freudenbergs.de
Fri Dec 2 14:32:47 UTC 2011
On 02.12.2011, at 15:18, Tobias Pape wrote:
> Dear All,
>
> given the following class:
>
> Object subclass: #Foo
> instanceVariableNames: ''
> classVariableNames: ''
> poolDictionaries: ''
> category: 'Foo'!
> a
> self b: [^ 1].! !
>
> b: aBlock
>
> [self c: aBlock] ensure: [^ 2].
>
> c: aBlock
>
> aBlock value.
> ^ 3
>
> And you would do
>
> Foo new a
>
> what would you expect?
>
> I am very curious.
> Please, first guess, then execute.
>
> Best
> -Tobias
>
>
> <Foo.st>
I expected two possible outcomes (because putting a return in the ensure block is unusual).
But what it actually answers is surprising.
- Bert -
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