#1773: Add Compositor class as superclass of Arrow, in Control.Compositor
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 Reporter:  guest           |          Owner:         
     Type:  proposal        |         Status:  closed 
 Priority:  normal          |      Milestone:  Not GHC
Component:  libraries/base  |        Version:  6.6.1  
 Severity:  normal          |     Resolution:  fixed  
 Keywords:                  |     Difficulty:  Unknown
 Testcase:                  |   Architecture:  Unknown
       Os:  Unknown         |  
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Comment (by desegnis):

 Is the question allowed how packages relying on the old Arrow interface
 should handle the changing situation?  Will they be #ifdef'ing on the
 version of base?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1773#comment:3>
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