Re: [RFC]Discuss] Syntax for Arrow Functions
| From: | Rasmus Schultz | Date: | Mon, 19 Jun 2017 19:43:47 +0000 |
| Subject: | Re: [RFC]Discuss] Syntax for Arrow Functions | ||
| References: | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-99560@lists.php.net to get a copy of this message | ||
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.
>