Re: [RFC]Discuss] Syntax for Arrow Functions

Well, the Ruby/Rust syntax would serve us well here too: $things->forEach(|$v| {

    foo($v);
    bar($v);

}); On 19 Jun, 2017, at 09:43 PM, Rasmus Schultz <rasmus@mindplay.dk> wrote: I actually like this syntax, but what would it look like for multi-statement closures? A nested set of curly braces around the body would look pretty messy.

    $things->forEach({$v => { foo($v); bar($v); }});

On Mon, Jun 19, 2017 at 4:43 PM, Levi Morrison <levim@php.net> wrote: On Sun, Jun 18, 2017 at 1:44 PM, Ilija Tovilo <ilija.tovilo@me.com> wrote:

Sorry, I wasn’t aware of that. What do you think of the Ruby/Rust style syntax that Levi proposed a while back? $someDict

     ->map(|$v| $v * 2)
     ->filter(|$v| $v % 3);

This one has a few advantages: 1. It has syntax (a lot of) developers are already familiar with 2. It has no ambiguities and is fully backward compatible 3. It’s the shortest of all options available (two | characters and one space)

We determined that the arrow between the parameters and the expression would still be required. Given this limitation I think this syntax is seviceable:

    $someDict
        ->map({$v => $v * 2})
        ->filter({$v => $v % 3});

Sometime this week I intend to start another thread that narrows us down to two choices.