Simple example crashes GHC
This file:
class Collects ce where
type Elem ce
empty :: ce
insert :: Elem ce -> ce -> ce
member :: Elem ce -> ce -> Bool
toList :: ce -> [Elem ce]
and call GHC as: ghci -fglasgow-exts Abc gives:
GHCi, version 6.9.20070927: http://www.haskell.org/ghc/ :? for help
Loading package base ... linking ... done.
[1 of 1] Compiling Main ( Abc.hs, interpreted )
ghc-6.9.20070927: panic! (the 'impossible' happened)
(GHC version 6.9.20070927 for i386-unknown-linux):
check_tau_type main:Main.Elem{tc rlp} ce{tv alz} [tv]
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
Trac metadata
Trac field | Value |
---|---|
Version | 6.9 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | iampure@gmail.com |
Operating system | Unknown |
Architecture | Unknown |