#6124: Spurious non-exhaustive warning with GADT and newtypes
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Reporter: joeyadams | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler (Type checker) | Version: 7.4.1
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: Incorrect warning at
compile-time
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Changes (by simonpj):
* difficulty: => Unknown
Comment:
Thanks. I'm afriad this is part of a collection of pattern-match-
exhaustiveness-checking tickets: #595, #5728, #3927, #5724, #5762, #4139.
I think it's precisely #3927 but have not checked carefully.
This whole area needs love, but it's not trivial or I'd have done it by
now!
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6124#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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