There is the memoized with the internally declared Dictionary new as the cache and memoized using: cache
There cache is known and the result is a block that does the caching thing.
([ :cacheKey| self getIssueCreateMetaWithExpandKeys: true ] memoizedUsing: self cache) value: #issueCreateMeta
BlockClosure>>#memoizedUsing: cache
"Provide a memoization block using the given cache. So one can tune by
�� �� ��passing a LRUCache for instance"
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�� �� ^[ :x | cache at: x ifAbsentPut: [ self value: x ] ]
Basically a shorthand for your recommendation.
But I would have put a cull: instead of value: because sometimes, like in my case, there is no parameter, the only useful thing is the cacheKey.
And it would be nice to have the :v1 :v2 :vn version with the cache key being made out of the combination + cull:cull:cull:
Really, this is just a shorthand.
This is nicer IMHO than having cache at:ifAbsentPut: all over.
| cache factorial result |
cache := LRUCache new maximumWeight: 3.
factorial := 0. "avoid not-initialised warning when saving method source"
factorial := [ :n | n = 1 ifTrue: [1] ifFalse: [(factorial value: n - 1) * n] ] memoizedUsing: cache.
result := (1 to: 5) collect: factorial.
Phil