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Date: Wed, 13 Aug 2014 17:20:14 +0200
Message-ID: <CAJW__o1yTMeZGAEm1mnkM2KaAeMKUPe7CsQ1M5GiGW3DG8Wjiw@mail.gmail.com>
To: Ferenc Kovacs <tyra3l@gmail.com>
Cc: Rowan Collins <rowan.collins@gmail.com>, PHP Internals <internals@lists.php.net>
Content-Type: text/plain; charset=UTF-8
Subject: Re: [PHP-DEV] [RFC] Disallow multiple default blocks in a single
 switch statement
From: kalle@php.net (Kalle Sommer Nielsen)

 Hi

2014-08-13 13:02 GMT+02:00 Ferenc Kovacs <tyra3l@gmail.com>:
> agree, and I thought about mentioning that, but I left that out, because
> I'm not proposing to remove that ability (and I see more use-cases for that
> as mentioned in my previous email) but stating that this patch would make
> an arbitrary distinction between the normal and the default cases.

In PHP we already disallow overriding $this, like:

class A {
 public function B() {
  $this = 'hello'; // error
  ${'this'} = 'hello'; // error
  ${'t' . 'his'} = 'hello'; // works
 }
}

so agreed too, we cannot disallow such cases that can be variable with
any gain, and it does make sense you cannot with $this, but if you
hack it like above, then you are asking for trouble anyway


-- 
regards,

Kalle Sommer Nielsen
kalle@php.net