Personally, I would rather see #ifEmpty: modified to return self in the false case like #ifNil: does. The only in-image sender I can find that even uses the return value seems to actually expect this behaviour anyway. :)
Then you could simply write: (aCollection select: [:ea | ...]) ifEmpty: [ ... ] Julian 2009/12/26 Bart Gauquie <[email protected]>: > Dear all, > > While developing some code, I made following extension of the Collection > protocol: > select: aBlock ifNoneTakeAsDefault: aDefaultValue > |result| > result := self select: aBlock. > (result isEmpty) > ifTrue: [^self class with: aDefaultValue] > ifFalse: [^result]. > > Maybe this could be added to the Pharo 1.1 Collection clazz? Or do we want > to keep the interface of Collection as small as possible (which is also a > good idea!). > Kind Regards, > Bart > -- > imagination is more important than knowledge - Albert Einstein > Logic will get you from A to B. Imagination will take you everywhere - > Albert Einstein > Learn from yesterday, live for today, hope for tomorrow. The important thing > is not to stop questioning. - Albert Einstein > The true sign of intelligence is not knowledge but imagination. - Albert > Einstein > Gravitation is not responsible for people falling in love. - Albert Einstein > > _______________________________________________ > Pharo-project mailing list > [email protected] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > _______________________________________________ Pharo-project mailing list [email protected] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
