blob: 77d93e87ff01b00ef3d783e98fe56f44027b743e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
|
NoMatchErr.hs:20:5:
Could not deduce (Memo d ~ Memo d0)
from the context (Fun d)
bound by the type signature for f :: Fun d => Memo d a -> Memo d a
at NoMatchErr.hs:20:1-15
NB: `Memo' is a type function, and may not be injective
The type variable `d0' is ambiguous
Possible fix: add a type signature that fixes these type variable(s)
Expected type: Memo d a -> Memo d a
Actual type: Memo d0 a -> Memo d0 a
In the expression: abst . appl
In an equation for `f': f = abst . appl
|
