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[1 of 2] Compiling ValidHoleFits ( ValidHoleFits.hs, ValidHoleFits.o )
[2 of 2] Compiling Foo ( valid_hole_fits.hs, valid_hole_fits.o )
valid_hole_fits.hs:9:6: warning: [GHC-88464] [-Wdeferred-out-of-scope-variables (in -Wdefault)]
Variable not in scope: putStrLn :: String -> IO ()
Suggested fixes:
• Perhaps use one of these:
‘System.IO.putStrLn’ (imported from System.IO),
‘System.IO.putStr’ (imported from System.IO)
• Perhaps you want to remove ‘putStrLn’
from the explicit hiding list in the import of ‘Prelude’
(valid_hole_fits.hs:3:1-40).
valid_hole_fits.hs:17:17: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: Int -> IO Int
• In a stmt of a 'do' block: y <- _ x
In the expression:
do x <- a 0
y <- _ x
return y
In an equation for ‘c’:
c _
= do x <- a 0
y <- _ x
return y
• Relevant bindings include
x :: Int (bound at valid_hole_fits.hs:16:12)
c :: Int -> IO Int (bound at valid_hole_fits.hs:16:1)
Valid hole fits include
c :: Int -> IO Int (bound at valid_hole_fits.hs:16:1)
a :: Int -> IO Int (bound at valid_hole_fits.hs:12:1)
b :: Int -> IO Int (bound at valid_hole_fits.hs:14:1)
return :: forall (m :: * -> *) a. Monad m => a -> m a
with return @IO @Int
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
pure :: forall (f :: * -> *) a. Applicative f => a -> f a
with pure @IO @Int
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
valid_hole_fits.hs:21:8: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: [Maybe a] -> [a]
Where: ‘a’ is a rigid type variable bound by
the type signature for:
test :: forall a. [Maybe a] -> [a]
at valid_hole_fits.hs:20:1-24
• In an equation for ‘test’: test = _
• Relevant bindings include
test :: [Maybe a] -> [a] (bound at valid_hole_fits.hs:21:1)
Valid hole fits include
test :: [Maybe a] -> [a] (bound at valid_hole_fits.hs:21:1)
catMaybes :: forall a. [Maybe a] -> [a]
with catMaybes @a
(imported from ‘Data.Maybe’ at valid_hole_fits.hs:5:1-17)
mempty :: forall a. Monoid a => a
with mempty @([Maybe a] -> [a])
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
valid_hole_fits.hs:24:9: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: Integer -> ValidHoleFits.Moo
• In an equation for ‘test2’: test2 = _
• Relevant bindings include
test2 :: Integer -> ValidHoleFits.Moo
(bound at valid_hole_fits.hs:24:1)
Valid hole fits include
test2 :: Integer -> ValidHoleFits.Moo
(bound at valid_hole_fits.hs:24:1)
ValidHoleFits.Moo :: Integer -> ValidHoleFits.Moo
(imported qualified from ‘ValidHoleFits’ at valid_hole_fits.hs:6:1-30
(and originally defined at ValidHoleFits.hs:4:12-22))
valid_hole_fits.hs:27:5: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: t0 -> Maybe Integer
Where: ‘t0’ is an ambiguous type variable
• In the expression: _ 2
In an equation for ‘k’: k = _ 2
• Relevant bindings include
k :: Maybe Integer (bound at valid_hole_fits.hs:27:1)
Valid hole fits include
Just :: forall a. a -> Maybe a
with Just @Integer
(imported from ‘Data.Maybe’ at valid_hole_fits.hs:5:1-17
(and originally defined in ‘GHC.Maybe’))
return :: forall (m :: * -> *) a. Monad m => a -> m a
with return @Maybe @Integer
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
pure :: forall (f :: * -> *) a. Applicative f => a -> f a
with pure @Maybe @Integer
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
valid_hole_fits.hs:30:10: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: a1
Where: ‘a1’ is an ambiguous type variable
• In the first argument of ‘show’, namely ‘_’
In the expression: show _
In an equation for ‘f’: f = show _
• Relevant bindings include
f :: String (bound at valid_hole_fits.hs:30:1)
Valid hole fits include
f :: String (bound at valid_hole_fits.hs:30:1)
k :: Maybe Integer (defined at valid_hole_fits.hs:27:1)
h :: String (bound at valid_hole_fits.hs:34:1)
otherwise :: Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
False :: Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Types’))
True :: Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Types’))
LT :: Ordering
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Types’))
EQ :: Ordering
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Types’))
GT :: Ordering
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Types’))
() :: () (bound at <wired into compiler>)
pi :: forall a. Floating a => a
with pi @Double
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Float’))
valid_hole_fits.hs:34:11: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: Bool -> a0
Where: ‘a0’ is an ambiguous type variable
• In the first argument of ‘show’, namely ‘(_ (_ :: Bool))’
In the expression: show (_ (_ :: Bool))
In an equation for ‘h’: h = show (_ (_ :: Bool))
• Relevant bindings include
h :: String (bound at valid_hole_fits.hs:34:1)
Valid hole fits include
not :: Bool -> Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Classes’))
enumFrom :: forall a. Enum a => a -> [a]
with enumFrom @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Enum’))
Just :: forall a. a -> Maybe a
with Just @Bool
(imported from ‘Data.Maybe’ at valid_hole_fits.hs:5:1-17
(and originally defined in ‘GHC.Maybe’))
MkSolo :: forall a. a -> Solo a
with MkSolo @Bool
(bound at <wired into compiler>)
id :: forall a. a -> a
with id @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
repeat :: forall a. a -> [a]
with repeat @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.List’))
fromEnum :: forall a. Enum a => a -> Int
with fromEnum @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Enum’))
pred :: forall a. Enum a => a -> a
with pred @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Enum’))
succ :: forall a. Enum a => a -> a
with succ @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Enum’))
show :: forall a. Show a => a -> String
with show @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Show’))
valid_hole_fits.hs:34:14: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: Bool
• In the first argument of ‘_’, namely ‘(_ :: Bool)’
In the first argument of ‘show’, namely ‘(_ (_ :: Bool))’
In the expression: show (_ (_ :: Bool))
• Relevant bindings include
h :: String (bound at valid_hole_fits.hs:34:1)
Valid hole fits include
otherwise :: Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
False :: Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Types’))
True :: Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Types’))
maxBound :: forall a. Bounded a => a
with maxBound @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Enum’))
minBound :: forall a. Bounded a => a
with minBound @Bool
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Enum’))
valid_hole_fits.hs:38:10: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: a -> [a] -> [a]
Where: ‘a’ is a rigid type variable bound by
the type signature for:
myCons :: forall a. a -> [a] -> [a]
at valid_hole_fits.hs:37:1-25
• In an equation for ‘myCons’: myCons = _
• Relevant bindings include
myCons :: a -> [a] -> [a] (bound at valid_hole_fits.hs:38:1)
Valid hole fits include
myCons :: a -> [a] -> [a] (bound at valid_hole_fits.hs:38:1)
(:) :: forall a. a -> [a] -> [a]
with (:) @a
(bound at <wired into compiler>)
(<$) :: forall (f :: * -> *) a b. Functor f => a -> f b -> f a
with (<$) @[] @a @a
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
seq :: forall a b. a -> b -> b
with seq @a @[a]
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Prim’))
mempty :: forall a. Monoid a => a
with mempty @(a -> [a] -> [a])
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
valid_hole_fits.hs:41:8: warning: [GHC-88464] [-Wtyped-holes (in -Wdefault)]
• Found hole: _ :: String -> IO ()
• In the expression: _ "hello, world"
In an equation for ‘main’: main = _ "hello, world"
• Relevant bindings include
main :: IO () (bound at valid_hole_fits.hs:41:1)
Valid hole fits include
ps :: String -> IO () (defined at valid_hole_fits.hs:9:1)
System.IO.putStr :: String -> IO ()
(imported qualified from ‘System.IO’ at valid_hole_fits.hs:4:29-34)
System.IO.putStrLn :: String -> IO ()
(imported qualified from ‘System.IO’ at valid_hole_fits.hs:4:37-44)
readIO :: forall a. Read a => String -> IO a
with readIO @()
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘System.IO’))
print :: forall a. Show a => a -> IO ()
with print @String
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘System.IO’))
fail :: forall (m :: * -> *) a. MonadFail m => String -> m a
with fail @IO @()
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘Control.Monad.Fail’))
mempty :: forall a. Monoid a => a
with mempty @(String -> IO ())
(imported from ‘Prelude’ at valid_hole_fits.hs:3:1-40
(and originally defined in ‘GHC.Base’))
|
