[CLJ-804] Expose memoization cache and original as metadata on memoized functions. Created: 01/Jun/11 Updated: 21/Jun/11 Resolved: 21/Jun/11
The attached patch exposes the memoization cache and original pre-memoized value as metadata on memoized functions.
The metadata keys are ::memoize-cache and ::prememoized respectively, to which I'm not too attached.
|Comment by Stuart Halloway [ 20/Jun/11 6:51 AM ]|
Can you say more about the problems(s) being solved there? Given all the other feature work that has been done/requested around memoization, tempted to let this work happen in a contrib library first. But that is partially because I don't know from this ticket what pain is being addressed.
|Comment by Fogus [ 20/Jun/11 8:17 AM ]|
Unk may provide a starting point for a contrib lib. https://github.com/fogus/unk
|Comment by Phil Hagelberg [ 20/Jun/11 12:18 PM ]|
I'm in support of a smarter memoize a la unk; this could be considered a stop-gap measure that helps in situations where the current memoize implementation simply cannot be used due to unbounded memory use.
I've also come across circumstances where I can't use memoize because it will make my function untestable, though admittedly these involve memoizing impure functions—perhaps the answer there is just "don't do that".
|Comment by Christopher Redinger [ 21/Jun/11 6:04 PM ]|
Let's do one of the following instead: