Shouldn't ifEmpty return self?
Boris Popov
boris at deepcovelabs.com
Mon Jun 12 18:55:21 UTC 2006
Umm, no, receiver of a doit should have nothing to do with the code being
executed. Here's a VisualWorks implementation, which is more correct given
the intent of these methods,
#(1) ifEmpty: [nil] #(1)
#() ifNotEmpty: [nil] #()
Cheers!
-Boris
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-----Original Message-----
From: squeak-dev-bounces at lists.squeakfoundation.org
[mailto:squeak-dev-bounces at lists.squeakfoundation.org] On Behalf Of marcelo
Cortez
Sent: Monday, June 12, 2006 11:49 AM
To: Ron at USMedRec.com; The general-purpose Squeak developers list
Subject: Re: Shouldn't ifEmpty return self?
Ron
in your example ( with doit)
#(1) ifEmpty: [nil]
ifEmpty block don't qualify, so return the receiver.
the receiver of Doit is UndefinedObject
from there you have nil how result
best regards
MDC
--- Ron Teitelbaum <Ron at USMedRec.com> escribió:
> Shouldn't ifEmpty: return self?
>
>
>
> #(1) ifEmpty: [nil] -> Returns nil
>
> #(1) ifNil: [nil]. -> Returns #(1)
>
>
>
> Ron Teitelbaum
>
>
>
> >
>
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