[GHC] #9649: symbols should/might be type level lists of chars

GHC ghc-devs at haskell.org
Mon Sep 29 17:49:34 UTC 2014


#9649: symbols should/might be type level lists of chars
-------------------------------------+-------------------------------------
       Reporter:  ibotty             |                   Owner:  ibotty
           Type:  feature request    |                  Status:  new
       Priority:  normal             |               Milestone:  7.10.1
      Component:  Compiler           |                 Version:
       Keywords:                     |        Operating System:
   Architecture:  Unknown/Multiple   |  Unknown/Multiple
     Difficulty:  Unknown            |         Type of failure:
     Blocked By:                     |  None/Unknown
Related Tickets:                     |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------
 I thought I had seen that feature request in trac but did not find it.
 Sorry if I am wrong.


 A simple use case might be a type safe routing framework, e.g.

 {{{
 get :: Route "/a/:id" $ do
     idA <- param :: Param "idA"
     ...
 }}}


 I spoke with pedro at hacberlin last weekend and he told me simonp and
 iavor might tell me where to start looking.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9649>
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