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Date: Sat, 14 Jan 2017 22:00:57 +0100
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To: PHP Internals List <internals@lists.php.net>
Cc: Giovanni Giacobbi <giovanni@giacobbi.net>
Content-Type: multipart/alternative; boundary=94eb2c1497144af5990546143f52
Subject: Re: [PHP-DEV] Explicit constructor call and polymorphic dispatch
From: michal@brzuchalski.com (=?UTF-8?Q?Micha=C5=82_Brzuchalski?=)

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2017-01-14 19:24 GMT+01:00 Fleshgrinder <php@fleshgrinder.com>:

> On 1/14/2017 7:10 PM, Micha=C5=82 Brzuchalski wrote:
> > AFAIK parent is a speciual scope which help refers to variables and
> > functions in base classe
> > http://php.net/manual/kr/keyword.parent.php
> > So it looks like proposing your syntax could lead to huge BC break.
> > In other languages (eg. Java) there is special syntax quite similar wit=
h
> > `super($a, $b)` call.
> >
>
> `super` **is** Java=E2=80=99s `parent` keyword.
>
> There is definitely no breaking change here by enabling `parent()` as an
> alternative to `parent::__construct()` since it has no functionality at
> all right now. As a matter of fact, PHP currently aborts with a fatal
> error:
>
> ```
> Fatal error: Call to undefined function parent() in
> ```
>
> Reversing keywords in the global scope is done regularly in PHP minor
> versions, hence, that would not be a problem either.
>
> I see only one single problem, users might expect that `parent()`
> actually should call `parent::__invoke()`. However, that is not the case
> right now and nobody ever asked for it plus it is a little used feature
> anyways which does not require special treatment (imho).
>
>
There might be different parent scope calls not only to magic method but
also all base class methods.


> Regarding the fatal error on a missing constructor implementation in the
> parent. I fully agree that this should be possible.
>
> --
> Richard "Fleshgrinder" Fussenegger
>



--=20
regards / pozdrawiam,
--
Micha=C5=82 Brzuchalski
about.me/brzuchal
brzuchalski.com

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