#9687: Missing Typeable instances for built-in types -------------------------------------+------------------------------------- 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: | -------------------------------------+------------------------------------- Comment (by dreixel): Replying to [comment:4 simonpj]:
Yes I agree about instances. Should be a question of adding `DeriveAutoTypeable` (or whatever it's called) to the module that defines all the tuple types. Would someone like to do that?
`AutoDeriveTypeable`. But, if I recall correctly, we've decided against that in the past because: 1) It increased the object file size and/or compilation time significantly (though maybe we were also deriving `Data` and `Generic`); 2) Very few people would make use of it; 3) They could always use `StandaloneDeriving`. But perhaps it's time to revisit that decision. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9687#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler