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Date: Tue, 23 Apr 2024 13:18:14 +0200
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Subject: Re: [PHP-DEV] [RFC] [Discussion] new MyClass()->method() without parentheses
To: Valentin Udaltsov <udaltsov.valentin@gmail.com>
Cc: Larry Garfield <larry@garfieldtech.com>, php internals <internals@lists.php.net>
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From: landers.robert@gmail.com (Robert Landers)

On Tue, Apr 23, 2024 at 11:10=E2=80=AFAM Valentin Udaltsov
<udaltsov.valentin@gmail.com> wrote:
>
> =D0=B2=D1=82, 9 =D0=B0=D0=BF=D1=80. 2024=E2=80=AF=D0=B3. =D0=B2 19:41, La=
rry Garfield <larry@garfieldtech.com>:
>>
>> On Mon, Apr 8, 2024, at 6:08 AM, Valentin Udaltsov wrote:
>> > Hello internals,
>> >
>> >
>> >
>> > I would like to propose a syntax change for PHP 8.4 that allows to
>> > immediately access instantiated objects without wrapping the expressio=
n
>> > into parentheses.
>> >
>> >
>> >
>> > This was requested and discussed several times, see:
>> >
>> > - https://externals.io/message/66197
>> >
>> > - https://bugs.php.net/bug.php?id=3D70549
>> >
>> > - https://externals.io/message/101811
>> >
>> > - https://externals.io/message/113953
>> >
>> >
>> >
>> > Here's what you will be able to write after this change:
>> >
>> > ```php
>> >
>> > class MyClass
>> >
>> > {
>> >
>> >     const CONSTANT =3D 'constant';
>> >
>> >     public static $staticProperty =3D 'staticProperty';
>> >
>> >     public static function staticMethod(): string { return 'staticMeth=
od'; }
>> >
>> >     public $property =3D 'property';
>> >
>> >     public function method(): string { return 'method'; }
>> >
>> >     public function __invoke(): string { return '__invoke'; }
>> >
>> > }
>> >
>> >
>> >
>> > var_dump(
>> >
>> >     new MyClass()::CONSTANT,        // string(8)  "constant"
>> >
>> >     new MyClass()::$staticProperty, // string(14) "staticProperty"
>> >
>> >     new MyClass()::staticMethod(),  // string(12) "staticMethod"
>> >
>> >     new MyClass()->property,        // string(8)  "property"
>> >
>> >     new MyClass()->method(),        // string(6)  "method"
>> >
>> >     new MyClass()(),                // string(8)  "__invoke"
>> >
>> > );
>> >
>> > ```
>> >
>> >
>> >
>> > For more details see the RFC: https://wiki.php.net/rfc/new_without_par=
entheses
>> >
>> > Implementation: https://github.com/php/php-src/pull/13029
>>
>> I always thought there was some technical parser reason why this wasn't =
possible.  Maybe that was true in 5.x but isn't anymore?
>>
>> I cannot speak to the implementation, but I'm all for the change itself.
>>
>> --Larry Garfield
>
>
> Does anyone have additional feedback? I'd like to start voting on Thursda=
y, April 25th.
> I've also added a section on other syntax ideas that have been expressed =
on Twitter and in the PR: https://wiki.php.net/rfc/new_without_parentheses#=
other_syntax_ideas
> --
> Valentin

I suspect this will break (badly written) reflection in interesting ways:

https://3v4l.org/mcSNH

This basically breaks dereferencing order of operations and makes it
inconsistent.

Robert Landers
Software Engineer
Utrecht NL