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  • Glasgow Haskell Compiler
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  • #10946
Closed
Open
Created Oct 08, 2015 by Jan Stolarek@jstolarek

Typed hole inside typed Template Haskell bracket causes panic

When I say:

m :: a -> a
m x = $$([||_||])

I get:

T10946.hs:47:13:ghc: panic! (the 'impossible' happened)
  (GHC version 7.10.1 for x86_64-unknown-linux):
        No skolem info: a_apJ[sk]

This happens both with GHC 7.10.1 and latest HEAD (e2b579e8).

Trac metadata
Trac field Value
Version 7.10.1
Type Bug
TypeOfFailure OtherFailure
Priority high
Resolution Unresolved
Component Template Haskell
Test case
Differential revisions
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CC goldfire
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