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Date: Mon, 9 Mar 2015 18:54:17 +0800
Message-ID: <CAG1chorE4VwMJ0d=hs5pf8T-5z915fwv9uJvkRQ-NNnhKJPzaA@mail.gmail.com>
To: Shawn McCool <shawn@heybigname.com>
Cc: "internals@lists.php.net" <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=047d7ba97c2a4041b40510d8dca4
Subject: Re: [PHP-DEV] Request Feedback for Instance Variable Sugar RFC
From: reeze@php.net (reeze)

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Hi,

On 9 March 2015 at 17:43, Shawn McCool <shawn@heybigname.com> wrote:

> I've never submitted an RFC. Whether or not you're interested in the
> feature, please consider giving me feedback on the RFC itself so that I can
> better understand how to succeed in the process.
>
> ====== PHP RFC: Instance Variable Sugar ======
>   * Version: 0.1
>   * Date: 2015-03-09
>   * Author: Shawn McCool, shawn@heybigname.com
>   * Status: In Discussion
>
> ===== Summary =====
>
> In order to access instance variables, one must use the `$this->` prefix.
> The problem with this is that it reduces expressiveness in the language and
> increases the amount of unnecessary decoration, reducing readability.
>

This might decrease readability, since we already comfortable with the
syntax $this->something, in my opinion


> This RFC proposes a single character syntax sugar form of `$this->`.
> Instead, an `@` can be used to reference instance variables.
>
> The @ replaces the normal $ variable prefix.


> ===== Example =====
>
> <file php MyClass.php>
> <?php
> class Addition {
>   private $number
>
>   public function __construct($number) {
>     @number = $number;
>   }
>
>   public function original() {
>     return @number;
>   }
>
>   public function addTo($amount) {
>     return @number + $amount;
>

this is a BC break.  this is the same as constant number + $amount. so this
syntax is not feasible.


>   }
> }
> </file>
>
> ===== Backwards Compatibility =====
>
> Leave `$this->` available.
>
> ===== Proposed PHP Version(s) =====
>
> This is proposed for the next PHP x, currently PHP 7.
>
> --
> Shawn McCool | Big Name
> shawn@heybigname.com
> heybigname.com
>



-- 
Reeze Xia
http://reeze.cn

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