[Pharo-project] Issue 3533 in pharo: add Dictionary>>at:ifAbsentPutValue:

Status: Accepted Owner: stephane.ducasse Labels: Milestone-1.3 New issue 3533 by stephane.ducasse: add Dictionary>>at:ifAbsentPutValue: http://code.google.com/p/pharo/issues/detail?id=3533 Igor suggests to add this method in dictionary to avoid to use block closure when not necessary. Here the block has to be passed and executed. When you know the value you want to put this is extra work. at: key ifAbsentPut: aBlock "Return the value at the given key. If key is not included in the receiver store the result of evaluating aBlock as new value." ^ self at: key ifAbsent: [self at: key put: aBlock value]