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holes.hs:3:5: warning: [-Wtyped-holes]
• Found hole: _ :: t
Where: ‘t’ is a rigid type variable bound by
the inferred type of f :: t at holes.hs:3:1
• In the expression: _
In an equation for ‘f’: f = _
• Relevant bindings include f :: t (bound at holes.hs:3:1)
holes.hs:6:7: warning: [-Wtyped-holes]
• Found hole: _ :: Char
• In the expression: _
In an equation for ‘g’: g x = _
• Relevant bindings include
x :: Int (bound at holes.hs:6:3)
g :: Int -> Char (bound at holes.hs:6:1)
holes.hs:8:5: warning: [-Wtyped-holes]
• Found hole: _ :: [Char]
• In the first argument of ‘(++)’, namely ‘_’
In the expression: _ ++ "a"
In an equation for ‘h’: h = _ ++ "a"
• Relevant bindings include h :: [Char] (bound at holes.hs:8:1)
holes.hs:11:15: warning: [-Wtyped-holes]
• Found hole: _ :: b0
Where: ‘b0’ is an ambiguous type variable
• In the second argument of ‘const’, namely ‘_’
In the expression: const y _
In an equation for ‘z’: z y = const y _
• Relevant bindings include
y :: [a] (bound at holes.hs:11:3)
z :: [a] -> [a] (bound at holes.hs:11:1)
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