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T9834.hs:23:12: warning: [-Wdeferred-type-errors (in -Wdefault)]
• Couldn't match type ‘a’ with ‘p a0’
Expected: p a
Actual: p a0 -> p a0
‘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
• In the expression: wrapIdComp f
In an equation for ‘afix’: afix f = wrapIdComp f
• Relevant bindings include
f :: forall (q :: * -> *).
Applicative q =>
Comp p q a -> Comp p q a
(bound at T9834.hs:23:8)
afix :: (forall (q :: * -> *).
Applicative q =>
Comp p q a -> Comp p q a)
-> p a
(bound at T9834.hs:23:3)
T9834.hs:23:23: warning: [-Wdeferred-type-errors (in -Wdefault)]
• Couldn't match type ‘a1’ with ‘a’
Expected: Comp p q a1 -> Comp p q a1
Actual: Comp p q a -> Comp p q a
‘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:23:23
‘a’ is a rigid type variable bound by
the type signature for:
afix :: forall a.
(forall (q1 :: * -> *).
Applicative q1 =>
Comp p q1 a -> Comp p q1 a)
-> p a
at T9834.hs:22:11-74
• In the first argument of ‘wrapIdComp’, namely ‘f’
In the expression: wrapIdComp f
In an equation for ‘afix’: afix f = wrapIdComp f
• Relevant bindings include
f :: forall (q :: * -> *).
Applicative q =>
Comp p q a -> Comp p q a
(bound at T9834.hs:23:8)
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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