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 = DoubleWe 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 |