panic: "Non-exhaustive patterns in function zip_ty_env"
|Reported by:||nobody||Owned by:||simonpj|
|Component:||Compiler (Type checker)||Version:||None|
|Type of failure:||None/Unknown||Test Case:|
|Related Tickets:||Differential Rev(s):|
ghc-6.4: panic! (the `impossible' happened, GHC version 6.4): types/Type.lhs:(1107,0)-(1108,77): Non-exhaustive patterns in function zip_ty_env The same file compiles fine with GHC 6.2.2. Unfortunately I don't have a small example of this behaviour. I can send you the whole library if you need it, but it is not painless to get to this point. It would be great if you could give me some pointers about where the bug might lie - it uses MPTC instances, recursive newtypes and the FFI. thanks, peter, peteg at unsw.edu.au
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