Poly-kinded Const
Currently Const is defined as
newtype Const a b = Const { getConst :: a }I propose to define it poly-kinded in the second argument like so:
newtype Const a (b :: k) = Const { getConst :: a }This should be completely backwards-compatible.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.10.2 |
| Type | FeatureRequest |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Core Libraries |
| Test case | |
| Differential revisions | |
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| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |