#1274: Add a MonadState instance for the Parsec monad
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Reporter: mux | Owner:
Type: proposal | Status: new
Priority: normal | Milestone: Not GHC
Component: libraries (other) | Version: 6.6
Severity: minor | Resolution:
Keywords: | Difficulty: Easy (1 hr)
Os: Unknown | Testcase:
Architecture: Unknown |
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Comment (by dfranke):
Actually there's a significant drawback to depending on MTL: it depends on
multi-parameter typeclasses, whereas Parsec is currently portable.
I vote for accepting the patch anyway, though. Until such time as a
Haskell compiler other than GHC becomes suitable for developing
production code, I'll have trouble accepting h98-compliance as a
justification for omitting what is otherwise a worthwhile feature.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1274>
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