#7492: Generic1 deriving: Can we replace Rec1 f with f :.: Par1?
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Reporter: spl | Owner:
Type: feature request | Status: new
Priority: normal | Component: Compiler
Version: 7.7 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: None/Unknown | Blockedby:
Blocking: | Related:
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It seems like `Rec1 f` is isomorphic to `f :.: Par1`. Is it possible and
beneficial to replace the former with the latter and deprecate/remove
`Rec1`?
1. Currently, a parameter type is found in `Par1` or `Rec1`. By removing
`Rec1`, there would be only one place for parameters. This simplifies
generic functions.
2. It is in the interest of reducing redundancy in the representation,
something that appears to be consistent with the design of the
representation types (e.g. using the same type for multiple meanings).
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7492>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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