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Subject: Re: [PHP-DEV] [RFC] [Discussion] Short Closures
From: bjorn.x.larsson@telia.com (=?UTF-8?Q?Bj=c3=b6rn_Larsson?=)

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Den 2015-09-10 kl. 22:22, skrev Bob Weinand:
>> Am 10.09.2015 um 22:04 schrieb Björn Larsson <bjorn.x.larsson@telia.com>:
>>
>> Den 2015-09-03 kl. 00:48, skrev Rowan Collins:
>>> Amendment 3. Make the parentheses around the argument list mandatory so that (if Amendment 1 is also adopted) there is only a single variant of the syntax, namely "( param list ) ~> expression".
>>>
>> Any plans to incorporate any of the amendments above in the RFC?
>> Personally I favour amendment 3. One of your examples would be:
>> functionreduce(callable $fn){
>> return($initial)~>($input)~>{
>>     $accumulator=$initial;
>>         foreach($inputas$value){
>>             $accumulator=$fn($accumulator,$value);
>>         }
>>     return$accumulator;};
>> }
>>
>> Or maybe I'm just overly familiar having function arguments
>> within parenthesis ;)
>>
>> Regards, //Björn Larsson
> You are probably just very familiar with them ;-)
>
> It totally isn't unusual to have that (for languages allowing untyped params), see:
> Javascript (ES6)
> Hack
> C#
>
> (There probably are more, I just can recall these three off my head)
>
> So, I think this very much falls under personal preference.
>
> Bob
Yes, for me it's about not needing to think whether parenthesis
should be there or not. So one more thing to not think about...

Anyway, I noticed that both C# and Hack uses lamda functions for
asynchronous programming, so good to get going with this RFC!
Hack example:
|async (int $x, string $y): Awaitable<Foo> ==> await $x->genFoo($y, $z);

//Björn

|

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