#1773: Add Compositor class as superclass of Arrow, in Control.Compositor
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Reporter: guest | Owner:
Type: proposal | Status: new
Priority: normal | Milestone: Not GHC
Component: libraries/base | Version: 6.6.1
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Os: Unknown | Testcase:
Architecture: Unknown |
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Comment (by guest):
Consensus was to add this under the name Category:
{{{
class Category cat where
id :: cat a a
(.) :: cat b c -> cat a b -> cat a c
}}}
id and (.) would not replace those in the Prelude. Category would become a
superclass of the existing Arrow class.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1773#comment:1>
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