| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Kind
- type Kind = Type
- typeKind :: Type -> Kind
- isLiftedTypeKind :: Kind -> Bool
- isUnliftedTypeKind :: Kind -> Bool
- isConstraintKind :: Kind -> Bool
- returnsTyCon :: Unique -> Type -> Bool
- returnsConstraintKind :: Kind -> Bool
- isConstraintKindCon :: TyCon -> Bool
- okArrowArgKind :: Kind -> Bool
- okArrowResultKind :: Kind -> Bool
- classifiesTypeWithValues :: Kind -> Bool
- isStarKind :: Kind -> Bool
- isStarKindSynonymTyCon :: TyCon -> Bool
- isLevityPolymorphic :: Kind -> Bool
- isLevityPolymorphic_maybe :: Kind -> Maybe TyVar
Main data type
Predicates on Kinds
isLiftedTypeKind :: Kind -> Bool Source
isUnliftedTypeKind :: Kind -> Bool Source
isConstraintKind :: Kind -> Bool Source
returnsTyCon :: Unique -> Type -> Bool Source
Does the given type "end" in the given tycon? For example k -> [a] -> *
ends in * and Maybe a -> [a] ends in [].
returnsConstraintKind :: Kind -> Bool Source
isConstraintKindCon :: TyCon -> Bool Source
okArrowArgKind :: Kind -> Bool Source
okArrowResultKind :: Kind -> Bool Source
classifiesTypeWithValues :: Kind -> Bool Source
Does this classify a type allowed to have values? Responds True to things like *, #, TYPE Lifted, TYPE v, Constraint.
True of any sub-kind of OpenTypeKind
isStarKind :: Kind -> Bool Source
Is this kind equivalent to *?
isStarKindSynonymTyCon :: TyCon -> Bool Source
Is the tycon Constraint?
isLevityPolymorphic :: Kind -> Bool Source
Tests whether the given type looks like "TYPE v", where v is a variable.
isLevityPolymorphic_maybe :: Kind -> Maybe TyVar Source
Retrieves a levity variable in the given kind, if the kind is of the form "TYPE v".