#4189: (<.>) operator (generalizing (.) to Functor)
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Reporter: uzytkownik | Owner:
Type: proposal | Status: new
Priority: normal | Milestone: Not GHC
Component: libraries/base | Version: 6.12.3
Resolution: | Keywords:
Testcase: | Blockedby:
Difficulty: | Os: Unknown/Multiple
Blocking: | Architecture: Unknown/Multiple
Failure: None/Unknown |
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Comment(by uzytkownik):
Summary of
[http://www.haskell.org/pipermail/libraries/2010-August/013992.html
discussion].
There were the following counterpoints to (<.>):
- Lack of symmetry (contrary to (.))
- Operators usually have more then 2 parameters in unexpanded form
(however (>=>) (<=<) (^<<) etc. are in base)
- f <.> g is not much shorter then fmap f . g
Generally it seems to depend on style preference
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4189#comment:8>
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