Hi,
I am using a nice little method #destructDo: for a while now and it feels good.
In VisualWorks:
SequenceableCollection>>destructDo: aBlock
"Evaluate aBlock with the receiver's elements as parameters.
aBlock takes its arguments from the receiver.
'ok'
#(1 2 3) destructDo: [:a :b :c | a + b + c]
#(1 2 3) destructDo: [:a :b | a + b]
#(1 2 3) destructDo: [:a | a]
#(1 2 3) destructDo: [42]
'not ok'
#(1 2 3) destructDo: [:a :b :c :d | a + b + c + d]
"
^aBlock cullWithArguments: self asArray
In Amber:
SequenceableCollection>>destructDo: aBlock
^aBlock valueWithPossibleArguments: self
In Pharo and other dialects, I don���t know, but should be as easy.
For example you can do
(('2020-03-28' tokensBasedOn: $-) collect: #asNumber) destructDo: [:year :month :day |
Date newDay: day monthNumber: month year: year]
I like that the block is not the receiver (like with #valueWithArguments or #cullWithArguments), but the last argument.
Now the questions:
- I am sure that others came up with this. Anybody knows?
- What are you using for this pattern?
- I don���t really like the name, but haven���t found anything better yet. Maybe #destructedDo: or just #destructed: or: #withPartsDo:��� maybe something shorter? Ideas?
- What are you thinking about this?
Happy hacking,
Christian