blob: b7531aa2ce3a55e722bc338014dbca36619c02f4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
T14584.hs:56:41: warning: [-Wdeferred-type-errors (in -Wdefault)]
• Could not deduce (SingI a) arising from a use of ‘sing’
from the context: (Action act, Monoid a, Good m1)
bound by the instance declaration at T14584.hs:54:10-89
• In the second argument of ‘fromSing’, namely
‘(sing @m @a :: Sing _)’
In the fourth argument of ‘act’, namely
‘(fromSing @m (sing @m @a :: Sing _))’
In the expression:
act @_ @_ @act (fromSing @m (sing @m @a :: Sing _))
T14584.hs:56:50: warning: [-Wdeferred-type-errors (in -Wdefault)]
• Expected kind ‘m1’, but ‘a’ has kind ‘*’
• In the type ‘a’
In the second argument of ‘fromSing’, namely
‘(sing @m @a :: Sing _)’
In the fourth argument of ‘act’, namely
‘(fromSing @m (sing @m @a :: Sing _))’
T14584.hs:56:60: warning: [-Wpartial-type-signatures (in -Wdefault)]
• Found type wildcard ‘_’ standing for ‘a :: m’
Where: ‘a’, ‘m’ are rigid type variables bound by
the instance declaration
at T14584.hs:54:10-89
• In an expression type signature: Sing _
In the second argument of ‘fromSing’, namely
‘(sing @m @a :: Sing _)’
In the fourth argument of ‘act’, namely
‘(fromSing @m (sing @m @a :: Sing _))’
• Relevant bindings include
monHom :: a -> a (bound at T14584.hs:56:3)
|