ghc: panic! (the 'impossible' happened)
The attached program elicits the following error from GHC 7.10.2:
Couldn't match type ‘a’ with ‘(t0, t1, t2)’
‘a’ is untouchable
inside the constraints ()
bound by the inferred type of
updateKeytab :: FilePath -> Handle -> IO ()
at /u/res/g/src/remctl-tools/foo.hs:(58,1)-(69,26)ghc: panic! (the 'impossible' happened)
(GHC version 7.10.2 for x86_64-unknown-linux):
No skolem info: a_akOb[sk]
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
Trac metadata
Trac field | Value |
---|---|
Version | 7.10.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |