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../../typecheck/should_run/Defer01.hs:11:40: Warning:
Couldn't match type ‛Char’ with ‛[Char]’
Expected type: String
Actual type: Char
In the first argument of ‛putStr’, namely ‛','’
In the second argument of ‛(>>)’, namely ‛putStr ','’
In the expression: putStr "Hello World" >> putStr ','
../../typecheck/should_run/Defer01.hs:14:5: Warning:
Couldn't match expected type ‛Int’ with actual type ‛Char’
In the expression: 'p'
In an equation for ‛a’: a = 'p'
../../typecheck/should_run/Defer01.hs:18:9: Warning:
No instance for (Eq B) arising from a use of ‛==’
In the expression: x == x
In an equation for ‛b’: b x = x == x
../../typecheck/should_run/Defer01.hs:25:4: Warning:
Couldn't match type ‛Int’ with ‛Bool’
Inaccessible code in
a pattern with constructor
C2 :: Bool -> C Bool,
in an equation for ‛c’
In the pattern: C2 x
In an equation for ‛c’: c (C2 x) = True
../../typecheck/should_run/Defer01.hs:28:5: Warning:
No instance for (Num (a -> a)) arising from the literal ‛1’
In the expression: 1
In an equation for ‛d’: d = 1
../../typecheck/should_run/Defer01.hs:31:5: Warning:
Couldn't match expected type ‛Char -> t’ with actual type ‛Char’
Relevant bindings include
f :: t (bound at ../../typecheck/should_run/Defer01.hs:31:1)
The function ‛e’ is applied to one argument,
but its type ‛Char’ has none
In the expression: e 'q'
In an equation for ‛f’: f = e 'q'
../../typecheck/should_run/Defer01.hs:34:8: Warning:
Couldn't match expected type ‛Char’ with actual type ‛a’
‛a’ is a rigid type variable bound by
the type signature for h :: a -> (Char, Char)
at ../../typecheck/should_run/Defer01.hs:33:6
Relevant bindings include
x :: a (bound at ../../typecheck/should_run/Defer01.hs:34:3)
h :: a -> (Char, Char)
(bound at ../../typecheck/should_run/Defer01.hs:34:1)
In the expression: x
In the expression: (x, 'c')
../../typecheck/should_run/Defer01.hs:39:17: Warning:
Couldn't match expected type ‛Bool’ with actual type ‛T a’
Relevant bindings include
a :: a (bound at ../../typecheck/should_run/Defer01.hs:39:3)
i :: a -> () (bound at ../../typecheck/should_run/Defer01.hs:39:1)
In the first argument of ‛not’, namely ‛(K a)’
In the expression: (not (K a))
../../typecheck/should_run/Defer01.hs:43:5: Warning:
No instance for (MyClass a1) arising from a use of ‛myOp’
In the expression: myOp 23
In an equation for ‛j’: j = myOp 23
../../typecheck/should_run/Defer01.hs:43:10: Warning:
No instance for (Num a1) arising from the literal ‛23’
The type variable ‛a1’ is ambiguous
Note: there are several potential instances:
instance Num Double -- Defined in ‛GHC.Float’
instance Num Float -- Defined in ‛GHC.Float’
instance Integral a => Num (GHC.Real.Ratio a)
-- Defined in ‛GHC.Real’
...plus three others
In the first argument of ‛myOp’, namely ‛23’
In the expression: myOp 23
In an equation for ‛j’: j = myOp 23
../../typecheck/should_run/Defer01.hs:45:6: Warning:
Couldn't match type ‛Int’ with ‛Bool’
Inaccessible code in
the type signature for k :: Int ~ Bool => Int -> Bool
In the ambiguity check for: Int ~ Bool => Int -> Bool
To defer the ambiguity check to use sites, enable AllowAmbiguousTypes
In the type signature for ‛k’: k :: Int ~ Bool => Int -> Bool
../../typecheck/should_run/Defer01.hs:45:6: Warning:
Couldn't match expected type ‛Bool’ with actual type ‛Int’
In the ambiguity check for: Int ~ Bool => Int -> Bool
To defer the ambiguity check to use sites, enable AllowAmbiguousTypes
In the type signature for ‛k’: k :: Int ~ Bool => Int -> Bool
../../typecheck/should_run/Defer01.hs:45:6: Warning:
Couldn't match type ‛Int’ with ‛Bool’
Inaccessible code in
the type signature for k :: Int ~ Bool => Int -> Bool
../../typecheck/should_run/Defer01.hs:46:7: Warning:
Couldn't match expected type ‛Bool’ with actual type ‛Int’
In the expression: x
In an equation for ‛k’: k x = x
../../typecheck/should_run/Defer01.hs:49:5: Warning:
Couldn't match expected type ‛IO a0’
with actual type ‛Char -> IO ()’
Probable cause: ‛putChar’ is applied to too few arguments
In the first argument of ‛(>>)’, namely ‛putChar’
In the expression: putChar >> putChar 'p'
*** Exception: ../../typecheck/should_run/Defer01.hs:11:40:
Couldn't match type ‛Char’ with ‛[Char]’
Expected type: String
Actual type: Char
In the first argument of ‛putStr’, namely ‛','’
In the second argument of ‛(>>)’, namely ‛putStr ','’
In the expression: putStr "Hello World" >> putStr ','
(deferred type error)
*** Exception: ../../typecheck/should_run/Defer01.hs:14:5:
Couldn't match expected type ‛Int’ with actual type ‛Char’
In the expression: 'p'
In an equation for ‛a’: a = 'p'
(deferred type error)
*** Exception: ../../typecheck/should_run/Defer01.hs:18:9:
No instance for (Eq B) arising from a use of ‛==’
In the expression: x == x
In an equation for ‛b’: b x = x == x
(deferred type error)
<interactive>:8:11:
Couldn't match type ‛Bool’ with ‛Int’
Expected type: C Int
Actual type: C Bool
In the first argument of ‛c’, namely ‛(C2 True)’
In the first argument of ‛print’, namely ‛(c (C2 True))’
*** Exception: ../../typecheck/should_run/Defer01.hs:28:5:
No instance for (Num (a -> a)) arising from the literal ‛1’
In the expression: 1
In an equation for ‛d’: d = 1
(deferred type error)
*** Exception: ../../typecheck/should_run/Defer01.hs:31:5:
Couldn't match expected type ‛Char -> t’ with actual type ‛Char’
Relevant bindings include
f :: t (bound at ../../typecheck/should_run/Defer01.hs:31:1)
The function ‛e’ is applied to one argument,
but its type ‛Char’ has none
In the expression: e 'q'
In an equation for ‛f’: f = e 'q'
(deferred type error)
*** Exception: ../../typecheck/should_run/Defer01.hs:34:8:
Couldn't match expected type ‛Char’ with actual type ‛a’
‛a’ is a rigid type variable bound by
the type signature for h :: a -> (Char, Char)
at ../../typecheck/should_run/Defer01.hs:33:6
Relevant bindings include
x :: a (bound at ../../typecheck/should_run/Defer01.hs:34:3)
h :: a -> (Char, Char)
(bound at ../../typecheck/should_run/Defer01.hs:34:1)
In the expression: x
In the expression: (x, 'c')
(deferred type error)
*** Exception: ../../typecheck/should_run/Defer01.hs:39:17:
Couldn't match expected type ‛Bool’ with actual type ‛T a’
Relevant bindings include
a :: a (bound at ../../typecheck/should_run/Defer01.hs:39:3)
i :: a -> () (bound at ../../typecheck/should_run/Defer01.hs:39:1)
In the first argument of ‛not’, namely ‛(K a)’
In the expression: (not (K a))
(deferred type error)
*** Exception: ../../typecheck/should_run/Defer01.hs:43:5:
No instance for (MyClass a1) arising from a use of ‛myOp’
In the expression: myOp 23
In an equation for ‛j’: j = myOp 23
(deferred type error)
<interactive>:14:8:
Couldn't match expected type ‛Bool’ with actual type ‛Int’
In the first argument of ‛print’, namely ‛(k 2)’
In the expression: print (k 2)
In an equation for ‛it’: it = print (k 2)
*** Exception: ../../typecheck/should_run/Defer01.hs:49:5:
Couldn't match expected type ‛IO a0’
with actual type ‛Char -> IO ()’
Probable cause: ‛putChar’ is applied to too few arguments
In the first argument of ‛(>>)’, namely ‛putChar’
In the expression: putChar >> putChar 'p'
(deferred type error)
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