Panic on Irrefutable Pattern Failure
esennesh@lap282:~/Programs$ ghc herps.hs
[1 of 1] Compiling Herps ( herps.hs, herps.o )
ghc: panic! (the 'impossible' happened)
(GHC version 7.4.2 for x86_64-unknown-linux):
compiler/rename/RnSource.lhs:430:14-81: Irrefutable pattern failed for pattern Data.Maybe.Just (inst_tyvars,
_,
SrcLoc.L _ cls,
_)
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
Trac metadata
Trac field |
Value |
Version |
7.4.2 |
Type |
Bug |
TypeOfFailure |
OtherFailure |
Priority |
normal |
Resolution |
Unresolved |
Component |
Compiler |
Test case |
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Differential revisions |
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BlockedBy |
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Related |
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Blocking |
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CC |
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Operating system |
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Architecture |
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