(Control.Category.id @(->) >>=) causes GHC panic
$ ghci -ignore-dot-ghci -XTypeApplications
GHCi, version 8.3.20170605: http://www.haskell.org/ghc/ :? for help
Prelude> import qualified Control.Category as Cat
Prelude Cat> :t (Cat.id @(->) >>=)
ghc: panic! (the 'impossible' happened)
(GHC version 8.3.20170605 for x86_64-unknown-linux):
repSplitAppTy_maybe
a0_a1qW[tau:2]
a0_a1qW[tau:2]
Call stack:
CallStack (from HasCallStack):
prettyCurrentCallStack, called at compiler/utils/Outputable.hs:1133:58 in ghc:Outputable
callStackDoc, called at compiler/utils/Outputable.hs:1137:37 in ghc:Outputable
pprPanic, called at compiler/types/Type.hs:699:5 in ghc:Type
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
Prelude Cat>
Trac metadata
Trac field |
Value |
Version |
8.2.1 |
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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