blob: 0bbaa35573c06172d379d54e441b24ee7e76fa37 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
T10715.hs:9:13: error:
Couldn't match representation of type ‘a’ with that of ‘X a’
‘a’ is a rigid type variable bound by
the type signature for:
doCoerce :: forall a. Coercible a (X a) => a -> X a
at T10715.hs:9:13
Inaccessible code in
the type signature for:
doCoerce :: Coercible a (X a) => a -> X a
In the ambiguity check for ‘doCoerce’
To defer the ambiguity check to use sites, enable AllowAmbiguousTypes
In the type signature:
doCoerce :: Coercible a (X a) => a -> X a
|
