No skolem info panic: Static pointers and holes
The following program panics:
{-# LANGUAGE StaticPointers #-}
{-# LANGUAGE GADTs #-}
module Panic where
data Closure a where
foo :: (Closure a -> Closure b) -> Closure (a -> b)
foo f = static _
src/Panic.hs:8:16: error:ghc: panic! (the 'impossible' happened)
(GHC version 8.6.0.20180810 for x86_64-unknown-linux):
No skolem info:
[a_a5rt[sk:1], b_a5ru[sk:1]]
Call stack:
CallStack (from HasCallStack):
callStackDoc, called at compiler/utils/Outputable.hs:1164:37 in ghc:Outputable
pprPanic, called at compiler/typecheck/TcErrors.hs:2851:5 in ghc:TcErrors
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
Trac metadata
Trac field | Value |
---|---|
Version | 8.4.3 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
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Blocking | |
CC | |
Operating system | |
Architecture |