Re: Re: [RFC][Discuss] Arrow Functions

On 2/3/2017 11:26 PM, Michael Morris wrote: > On Fri, Feb 3, 2017 at 3:37 PM, Niklas Keller <me@kelunik.com> wrote: >> >> >> There are more drawbacks to that syntax like no parameters looking pretty >> weird: || => >> >> > I can't think of a valid example of an arrow function without any arguments > at all. These functions are very simple iterators to plug into things like > array_map. If you can think of one please post it. > There are many situations where one might want a closure that takes no arguments. ``` $option->unwrapOrThrow(|| => new Exception('my message')); ``` Creating a supplier callable is often less resource intensive than actually computing the supplied value. Rust has exactly that syntax but it can become rather cryptic and PHP is a verbose language in general. I think that it is best for PHP to go for function to keep things nicely aligned and to avoid problems with union types (which we really need). -- Richard "Fleshgrinder" Fussenegger