[swift-evolution] [Pitch] Introduce user-defined dynamically "callable" types

[Marcel Weiher]

> On Nov 10, 2017, at 19:04 , Joe Groff via swift-evolution <swift-evolution at swift.org> wrote:
> 
> I don't like the idea of some calls having wildly different semantics from others;

The obvious solution then is to make this proposal the general case and current calls a specialization of that.

Marcel