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In-Reply-To: <CAF+90c_XTc-hX3DQK-4rWnGGJZ2hK=WLKxYN5-Kn7wn8LZ5o5g@mail.gmail.com>
Date: Tue, 5 Nov 2013 19:22:41 +0100
Cc: Oleg Poludnenko <oleg@poludnenko.info>,
 PHP internals <internals@lists.php.net>
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References: <CAMhKfba+uk=cN3v_gSkc5rkf9MUc06Muv3mQ2bNURiNZ64fcqQ@mail.gmail.com> <CAF+90c_XTc-hX3DQK-4rWnGGJZ2hK=WLKxYN5-Kn7wn8LZ5o5g@mail.gmail.com>
To: Nikita Popov <nikita.ppv@gmail.com>
X-Mailer: Apple Mail (2.1816)
Subject: Re: [PHP-DEV] PHP RFC: Deffering functions by arguments (count or/and type)
From: ingwie2000@googlemail.com (Kevin Ingwersen)

I had nothing to do, so here we go: =
https://gist.github.com/IngwiePhoenix/e7fbee9f769fc137250d
Am 05.11.2013 um 19:09 schrieb Nikita Popov <nikita.ppv@gmail.com>:

> On Tue, Nov 5, 2013 at 2:03 PM, Oleg Poludnenko =
<oleg@poludnenko.info>wrote:
>=20
>> Hi,
>>=20
>> My idea is somehow related to this one: Syntax for variadic
>> functions<https://wiki.php.net/rfc/variadics>
>> It is not a competitive idea but a supplemental one.
>>=20
>> So, the main point is to write different implementations for the =
functions
>> with the same name, but with different of arguments count or/and =
type:
>>=20
>> class Config { /** * Returns property value * @param string $key *
>> @returnmixed */
>> public function prop($key) { return isset($this->prop[$key]) ? =
$this->prop[
>> $key] : null; } /** * Sets property value * @param string $key *
>> @parammixed $value *@returnConfig */
>> public function prop($key, $value) { $this->prop[$key] =3D $value; =
return
>> $this; } }
>>=20
>> Also it will be possible to change arguments during inheritance:
>>=20
>> class Figure { /** * Calculate perimeter of an arbitrary figure *
>> @paramarray $angles *@returnint */
>> public function calcPerimeter(array $angles) { return =
array_sum($angles); }
>> } class Square extends Figure { /** * Calculate perimeter of a square
>> *@paramint $angle *@returnint */
>> public function calcPerimeter($angle) { return 4 * $angle; } } class
>> Rectangle extends Figure { /** * Calculate perimeter of a rectangle *
>> @paramint $height *@paramint $width *@returnint */
>> public function calcPerimeter($height, $width) { return 2 * ($height =
+
>> $width); } }
>>=20
>> The advantages of the syntax are:
>>=20
>>   - It's immediately clear what function implements.
>>   - The function becomes cleaner, without a lot of if-else =
constructions.
>>   - A great opportunity to change function arguments during =
inheritance.
>>=20
>>=20
>> Regards,
>> Oleg Poludnenko
>>=20
>=20
> Would you mind putting your code in a gist/pastebin (or re-sending the =
mail
> with proper formatting)? It's hard to understand what this is about =
when
> the code is all in one line :)
>=20
> Nikita