[GHC] #9687: Missing Typeable instances for built-in types
GHC
ghc-devs at haskell.org
Tue Oct 14 01:21:51 UTC 2014
#9687: Missing Typeable instances for built-in types
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Reporter: selinger | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.8.3
Resolution: | Keywords:
Operating System: | Architecture: Unknown/Multiple
Unknown/Multiple | Difficulty: Unknown
Type of failure: | Blocked By:
None/Unknown | Related Tickets:
Test Case: |
Blocking: |
Differential Revisions: |
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Comment (by selinger):
Great, I confirm that this works:
{{{
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE DeriveDataTypeable #-}
import Data.Typeable
deriving instance Typeable (,,,,,,,)
}}}
Solves my problem in the short term.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9687#comment:5>
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