blob: 15d33b12451a17a9c05b0859cbfdcdf13979e810 (
plain)
1
2
3
4
5
6
7
8
9
10
11
|
tcfail098.hs:12:10:
Could not deduce (Bar a0)
arising from the ambiguity check for an instance declaration
from the context (Bar a)
bound by an instance declaration: Bar a => Bar Bool
at tcfail098.hs:12:10-26
The type variable ‛a0’ is ambiguous
In the ambiguity check for: forall a. Bar a => Bar Bool
To defer the ambiguity check to use sites, enable AllowAmbiguousTypes
In the instance declaration for ‛Bar Bool’
|
