Ill-sorted kinds crash GHC
GHC's sort-checker for kinds is not being terribly clever
{-# LANGUAGE PolyKinds, KindSignatures #-}
module Foo where
data T (a :: j k) = MkTcrashes the HEAD with
ghc-stage1: panic! (the 'impossible' happened)
(GHC version 7.5 for x86_64-unknown-linux):
kindFunResult ghc-prim:GHC.Prim.BOX{(w) tc 347}Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.4.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |