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To: Andreas Hennings <andreas@dqxtech.net>, Sara Golemon <pollita@php.net>
CC: Nikita Popov <nikita.ppv@gmail.com>, Bob Weinand <bobwei9@hotmail.com>,
	Benjamin Eberlei <kontakt@beberlei.de>, Chris Riley <t.carnage@gmail.com>,
	PHP internals <internals@lists.php.net>
Thread-Topic: [PHP-DEV] [RFC][Proposal] Renamed parameters
Thread-Index: AQHWYcnDdKmOlhlE3Uib5JhalBYIZKkW1XoAgAAIlYCAAAlCgIADocSAgAAWVno=
Date: Mon, 27 Jul 2020 01:18:54 +0000
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Subject: Re: [PHP-DEV] [RFC][Proposal] Renamed parameters
From: tysonandre775@hotmail.com (tyson andre)

Hi Andreas Hennings,=0A=
=0A=
> 1. Calls with named arguments can only happen on:=0A=
> =A0 - explicitly named functions (e.g. no call_user_func()).=0A=
> =A0 - constructor calls with an explicitly named class.=0A=
> =A0 - object methods, if the object variable is type-hinted or a type is =
known at compile time.=0A=
=0A=
This proposal would seem to depend on moving opcache into core, among other=
 things.=0A=
Depending on how it's implemented, the condition of "a type is known at com=
pile time" may also depend on whatever opcache optimization passes were ena=
bled,=0A=
which would make the behavior of whether this throws an Error at runtime un=
intuitive to users.=0A=
(e.g. `$a =3D SOME_OPTIMIZABLE_CONDITION ? new A() : new B(); $a->someMetho=
d(namedArg: value);`)=0A=
=0A=
- `SOME_OPTIMIZABLE_CONDITION` may depend on the php version or environment=
 (e.g. `PHP_OS_FAMILY =3D=3D 'Windows'`)=0A=
=0A=
A recent secondary poll on a rejected RFC I proposed did indicate broad int=
erest in moving opcache to php's core,=0A=
but I doubt that'd be done in 8.0 due to the feature freeze, and I also dou=
bt optimizations would always be enabled because of the overhead of optimiz=
ation for small short-lived scripts=0A=
( https://wiki.php.net/rfc/opcache.no_cache#if_you_voted_no_why )=0A=
=0A=
Also, the times when a type is known (with 100% certainty) at compile time =
are known by opcache but unintuitive to users,=0A=
due to the highly dynamic nature of PHP=0A=
(`$$var =3D 'value'`, references, calls to require()/extract() modifying th=
e scope, globals being effectively modifiable at any time, etc.)=0A=
Even for typed properties, the existence of magic methods such as `__get()`=
 (e.g. in subclasses) means that the type of $this->prop at runtime is unce=
rtain. =0A=
=0A=
- `__get()` is called if it exists when a declared fetched property (typed =
or otherwise) was unset.=0A=
=0A=
Regards,=0A=
- Tyson=