#7687: ghc panic on TH and deriveJSON ---------------------------------------+---------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Template Haskell | Version: 7.4.2 Resolution: | Keywords: TH Operating System: Windows | Architecture: x86_64 (amd64) Type of failure: Compile-time crash | Difficulty: Unknown Test Case: | Blocked By: 3658 Blocking: | Related Tickets: ---------------------------------------+---------------------------------- Comment (by George): When I try to compile the code above in Description I get Couldn't match expected type ‘Options’ with actual type ‘a0 -> a0’ Probable cause: ‘id’ is applied to too few arguments In the first argument of ‘deriveJSON’, namely ‘id’ In the expression: deriveJSON id ''Test -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7687#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler