GHCi printing GADT introduces unused type variable
data Equal a b where
Equal :: Equal a a
when printed in GHCi:
> :i Equal
data Equal a b where
Equal :: forall a. (a1 ~ a) => Equal a a
Trac metadata
Trac field | Value |
---|---|
Version | 6.12.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | GHCi |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |