label syntax vs DisambiguateRecordFields
Simon Marlow
simonmarhaskell at gmail.com
Thu Nov 22 03:52:21 EST 2007
Simon Peyton-Jones wrote:
> | Nice feature but feel like a band-aid. In particular it makes SYB style
> | programming more difficult because field labels aren't types.
> |
> | Almost every other record syntax plan involves field labels as types so
> | you can do interesting type dispatch.
>
> Record systems are indeed an interesting area. You might like to contribute to the discussion centred here:
> http://hackage.haskell.org/trac/ghc/wiki/ExtensibleRecords
>
> | Tracking these open issues:
> | * too many pragma declarations
> | * recursive deriving
> | * labels
> | * : for reload in ghci
> | * not reloading all the modules on :r
>
> Discussing these issues by email is an excellent way to characterise the issue and evolve a proposed design. But the way to track them is to use Trac -- so do go ahead and submit bug reports and/or feature requests.
I've created tickets for the last two:
http://hackage.haskell.org/trac/ghc/ticket/1914
http://hackage.haskell.org/trac/ghc/ticket/1915
Cheers,
Simon
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