Deriving Foldable doesn't work
I was trying out the Foldable deriving in GHC HEAD (see ticket #2953 (closed)). fold gave a stack space overflow. -ddump-deriv shows that the wrong foldr is being used:
{ GHC.Base.foldr f_aat z_aav (Main.Nil) = z_aav,This is easy to fix but isn't it strange that there's no compile error?
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.11 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
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