RHS of associated type not kind-checked
The following code compiles without complaint:
{-# LANGUAGE TypeFamilies, PolyKinds #-}
class Foo a where
type Bar a
instance Foo Int where
type Bar Int = Maybe
instance Foo Bool where
type Bar Bool = Double
We can see here that Bar
is ill-kinded. When I try :k Bar
in GHCi, I get an assertion failure, not unexpectedly.
I will fix in ongoing work.
Trac metadata
Trac field | Value |
---|---|
Version | 7.7 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |