[Haskell-cafe] Early feedback on a GHC proposal

Richard Eisenberg rae at cs.brynmawr.edu
Tue Jan 24 22:16:39 UTC 2017

I like it.

My use case for overloaded application is from singletons, where I want users to be able to apply something of type Sing (x :: k1 -> k2). Right now, they must call `applySing` to do the application.

Thanks for writing it up!


> On Jan 24, 2017, at 3:07 AM, Chris Smith <cdsmith at gmail.com> wrote:
> Anyone want to offer some early feedback on a GHC proposal I'm working on?  It's called OverloadedApplication.  Current version at https://github.com/cdsmith/ghc-proposals/blob/overloadedapplication/proposals/0000-overloaded-application.rst <https://github.com/cdsmith/ghc-proposals/blob/overloadedapplication/proposals/0000-overloaded-application.rst>
> I am proposing something a bit more ambitious than what I need, because the proposal as written seems more likely to be broadly useful.  The bit that I actually need is about desugaring of infix operators in the presence of RebindableSyntax.  I'd love to get early thoughts from anyone who has a solid use case for the rest of the proposal.  It feels like a thing that *ought* to be useful, but I'm drawing blanks at the moment.
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