RE: Branch new-typeable: conflicting definitions for class Typeable
Simon Peyton-Jones <[email protected]>
| Newsgroups | gmane.comp.lang.haskell.cvs.ghc |
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| Message-ID | <59543203684B2244980D7E4057D5FBC1379EA9A6@DB3EX14MBXC306.europe.corp.microsoft.com> |
The code is in TcRnDriver about line 764. No comparison of the "recflag" which is indeed a not-very-well-defined beast. I'd do -dppr-debug to check that unique are ok. The rnBndrs2 stuff is meant to deal with alpha-renaming. Simon From: [email protected] [mailto:[email protected]] On Behalf Of José Pedro Magalhães Sent: 26 September 2012 14:12 To: Simon Peyton-Jones Cc: [email protected] Subject: Branch new-typeable: conflicting definitions for class Typeable Hi Simon, I'm working on implementing the kind-polymorphic Typeable. I've branched the compiler and base repos into new-typeable. Currently I'm getting the following error: libraries/base/Data/Typeable/Internal.hs:213:7: Class `Typeable' has conflicting definitions in the module and its hs-boot file Main module: class Typeable (k::BOX) (a::k) RecFlag Recursive typeRep :: Proxy k a -> TypeRep Boot file: class Typeable (k::BOX) (a::k) RecFlag NonRecursive typeRep :: Proxy k a -> TypeRep make[1]: *** [libraries/base/dist-install/build/Data/Typeable/Internal.o] Error 1 Why is this? I don't see why Typeable should be recursive, nor do I see how to make it recursive on the hs-boot file... Thanks, Pedro _______________________________________________ Cvs-ghc mailing list [email protected] http://www.haskell.org/mailman/listinfo/cvs-ghc