#6015: "No instance" when using PolyKinds/DataKinds/FunDeps/Undecidable
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Reporter: atnnn | Owner:
Type: feature request | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.4.1
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: GHC rejects valid program
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Changes (by simonpj):
* difficulty: => Unknown
Comment:
That's odd. Even with `PolyKinds` on the program typechecks for me. Are
you using the latest HEAD?
But still there's a bug in 6015, and I think I know what it is. I'll try
to fix it today.
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6015#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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