#5863: Deriving Typeable for data families
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Reporter: simonpj | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 7.6.2
Component: Compiler | Version: 7.4.1
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: None/Unknown
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by dreixel):
We do allow (standalone) `deriving Typeable` for `T`, so I guess the way
to fix this is to simply disable `deriving Typeable` for family instances.
Unless we want to wait for #7897, of course.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5863#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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