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  • Glasgow Haskell Compiler
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  • #1773
Closed
Open
Created Oct 13, 2007 by guest@trac-guest

Add Compositor class as superclass of Arrow, in Control.Compositor

The Compositor class has two members:

class Compositor comp where
  identity :: comp a a
  (>>>) :: comp a b -> comp b c -> comp a c

with the obvious monoid. A number of useful types are Compositors but not Arrows.

Trac metadata
Trac field Value
Version 6.6.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component libraries/base
Test case
Differential revisions
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Operating system Unknown
Architecture Unknown
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