#4278: Proposal: Add strict versions of foldlWithKey and insertLookupWithKey to
Data.Map
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Reporter: tibbe | Owner:
Type: proposal | Status: patch
Priority: normal | Milestone: Not GHC
Component: libraries (other) | Version: 6.12.3
Keywords: | Testcase:
Blockedby: 4277 | Difficulty:
Os: Unknown/Multiple | Blocking: 4313
Architecture: Unknown/Multiple | Failure: Runtime performance bug
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Comment(by tibbe):
Discussion thread: http://www.mail-archive.com/glasgow-haskell-
[email protected]/msg28268.html
Discussion summary:
- Also add a strict right fold (included in the patch)
- Force the traversal evaluation order in addition to the accumulator (not
done; we don't get the Core we want for the fold so I rather not mess with
it until #4267 is resolved).
- There are other *WithKey functions that could need strict versions (not
done; out of scope for this proposal).
Patch to apply: strict-fold-with-key.dpatch
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4278#comment:7>
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