[GHC] #4359: Implement lambda-case/lambda-if

GHC cvs-ghc at haskell.org
Wed Oct 6 04:13:39 EDT 2010


#4359: Implement lambda-case/lambda-if
---------------------------------+------------------------------------------
    Reporter:  batterseapower    |        Owner:              
        Type:  feature request   |       Status:  new         
    Priority:  normal            |    Milestone:              
   Component:  Compiler          |      Version:  7.1         
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
---------------------------------+------------------------------------------
Description changed by simonpj:

Old description:

> I put together a patch for this Haskell' proposal
> (http://hackage.haskell.org/trac/haskell-prime/ticket/41)
>
>     Prelude> (if then "Haskell" else "Cafe") False
>     "Cafe"
>     Prelude> (case of 1 -> "One"; _ -> "Not-one") 1
>     "One"
>
> There seems to be some support for integrating this proposal into GHC
> (see http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/81366)
>
> The attached patches implement the feature, test it and document it.

New description:

 I put together a patch for this Haskell' proposal
 (http://hackage.haskell.org/trac/haskell-prime/ticket/41)
 {{{
     Prelude> (if then "Haskell" else "Cafe") False
     "Cafe"
     Prelude> (case of 1 -> "One"; _ -> "Not-one") 1
     "One"
 }}}
 There seems to be some support for integrating this proposal into GHC (see
 http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/81366)

 The attached patches implement the feature, test it and document it.

--

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4359#comment:9>
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