Allow: Coercing (a:~:b) to (b:~:a)
Is there *any* sensible way to enable coercing (:~:) swapping its arguments
coerce :: a:~:b -> b:~:a
Same for Coercion
coerce :: Coercion a b -> Coercion b a
Thanks!
Trac metadata
Trac field | Value |
---|---|
Version | 8.2.1 |
Type | FeatureRequest |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |