Panic when quoting a scoped type variable
{-# LANGUAGE TemplateHaskell, ScopedTypeVariables #-}
module GetNameOfThing where
import Language.Haskell.TH
f :: a -> Name
f (x :: a) = ''aghc: panic! (the 'impossible' happened)
(GHC version 7.2.2 for i386-unknown-linux):
th_bracket a{tv ahF}
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabugThe function is probably nonsense, but the error message could be friendlier.
Tested on GHC 7.2.2.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.2.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
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| Related | |
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| Operating system | |
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