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T15039b.hs:19:14: warning: [-Wpartial-type-signatures (in -Wdefault)]
• Found type wildcard ‘_’ standing for ‘Dict ((a :: *) ~ (b :: *))’
Where: ‘a’, ‘b’ are rigid type variables bound by
the type signature for:
ex1 :: forall a b. Dict ((a :: *) ~ (b :: *)) -> ()
at T15039b.hs:18:1-45
• In a pattern type signature: _
In the pattern: Dict :: _
In an equation for ‘ex1’: ex1 (Dict :: _) = ()
• Relevant bindings include
ex1 :: Dict ((a :: *) ~ (b :: *)) -> () (bound at T15039b.hs:19:1)
T15039b.hs:22:14: warning: [-Wpartial-type-signatures (in -Wdefault)]
• Found type wildcard ‘_’ standing for ‘Dict ((a :: *) ~ (b :: *))’
Where: ‘a’, ‘b’ are rigid type variables bound by
the type signature for:
ex2 :: forall a b. Dict ((a :: *) ~ (b :: *)) -> ()
at T15039b.hs:21:1-46
• In a pattern type signature: _
In the pattern: Dict :: _
In an equation for ‘ex2’: ex2 (Dict :: _) = ()
• Relevant bindings include
ex2 :: Dict ((a :: *) ~ (b :: *)) -> () (bound at T15039b.hs:22:1)
T15039b.hs:25:14: warning: [-Wpartial-type-signatures (in -Wdefault)]
• Found type wildcard ‘_’
standing for ‘Dict ((a :: *) ~~ (b :: k))’
Where: ‘a’, ‘k’, ‘b’ are rigid type variables bound by
the type signature for:
ex3 :: forall a k (b :: k). Dict ((a :: *) ~~ (b :: k)) -> ()
at T15039b.hs:24:1-43
• In a pattern type signature: _
In the pattern: Dict :: _
In an equation for ‘ex3’: ex3 (Dict :: _) = ()
• Relevant bindings include
ex3 :: Dict ((a :: *) ~~ (b :: k)) -> () (bound at T15039b.hs:25:1)
T15039b.hs:33:14: warning: [-Wpartial-type-signatures (in -Wdefault)]
• Found type wildcard ‘_’ standing for ‘Dict (Coercible @(*) a b)’
Where: ‘a’, ‘b’ are rigid type variables bound by
the type signature for:
ex6 :: forall a b. Dict (Coercible @(*) a b) -> ()
at T15039b.hs:32:1-53
• In a pattern type signature: _
In the pattern: Dict :: _
In an equation for ‘ex6’: ex6 (Dict :: _) = ()
• Relevant bindings include
ex6 :: Dict (Coercible @(*) a b) -> () (bound at T15039b.hs:33:1)
T15039b.hs:35:8: warning: [-Wpartial-type-signatures (in -Wdefault)]
• Found extra-constraints wildcard standing for
‘Coercible @(*) a b’
Where: ‘a’, ‘b’ are rigid type variables bound by
the inferred type of ex7 :: Coercible @(*) a b => Coercion @{*} a b
at T15039b.hs:35:1-44
• In the type signature:
ex7 :: _ => Coercion (a :: Type) (b :: Type)
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