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T9834.hs:23:10: warning: [-Wdeferred-type-errors (in -Wdefault)]
• Couldn't match type ‘p’ with ‘(->) (p a0)’
‘p’ is a rigid type variable bound by
the class declaration for ‘ApplicativeFix’ at T9834.hs:21:39
Expected type: (forall (q :: * -> *).
Applicative q =>
Comp p q a -> Comp p q a)
-> p a
Actual type: (forall (q :: * -> *).
Applicative q =>
Nat (Comp p q) (Comp p q))
-> p a0 -> p a0
• In the expression: wrapIdComp
In an equation for ‘afix’: afix = wrapIdComp
• Relevant bindings include
afix :: (forall (q :: * -> *).
Applicative q =>
Comp p q a -> Comp p q a)
-> p a
(bound at T9834.hs:23:3)
T9834.hs:23:10: warning: [-Wdeferred-type-errors (in -Wdefault)]
• Couldn't match type ‘a’ with ‘a1’
‘a’ is a rigid type variable bound by
the type signature for:
afix :: forall a.
(forall (q :: * -> *). Applicative q => Comp p q a -> Comp p q a)
-> p a
at T9834.hs:22:11-74
‘a1’ is a rigid type variable bound by
a type expected by the context:
forall (q :: * -> *). Applicative q => Nat (Comp p q) (Comp p q)
at T9834.hs:23:10-19
Expected type: Comp p q a1 -> Comp p q a1
Actual type: Comp p q a -> Comp p q a
• In the expression: wrapIdComp
In an equation for ‘afix’: afix = wrapIdComp
• Relevant bindings include
afix :: (forall (q :: * -> *).
Applicative q =>
Comp p q a -> Comp p q a)
-> p a
(bound at T9834.hs:23:3)
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