panic compiling classes
$ ghc Bug.hs
ghc-6.4: panic! (the `impossible' happened, GHC version
6.4):
ds_app_type Bug.Class1{tc r155} []
$ cat Bug.hs
module Bug where
class Class1 a where
class Class2 a where
class1 :: a -> Class1
Trac metadata
Trac field | Value |
---|---|
Version | 6.4 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | ResolvedFixed |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |