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Date: Tue, 24 Jul 2012 22:47:30 +0800
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To: Nikita Popov <nikita.ppv@gmail.com>
Cc: PHP Internals <internals@lists.php.net>
Content-Type: text/plain; charset=UTF-8
Subject: Re: [PHP-DEV] [RFC] Supports 'finally' keyword for PHP exceptions
From: laruence@php.net (Laruence)

On Tue, Jul 24, 2012 at 9:35 PM, Nikita Popov <nikita.ppv@gmail.com> wrote:
> On Tue, Jul 24, 2012 at 1:20 PM, Laruence <laruence@php.net> wrote:
>> Hi:
>>     As the previous threads disscussed,  I make a implemention.
>>
>>     here is the RFC: https://wiki.php.net/rfc/finally
>>
>>     any suggestions?
>
> The finally clause comes with a very strong promise that the code in
> the clause will run in absolutely any case (short of sigkill, maybe).
> In particular this means that...
> ... if a die() is execute somewhere in the try clause (or a called
> function) the finally clause must still be run.
> ... if a parse error or other fatal error occurs in the try clause (or
> called function) the finally clause must still be run.
> ... if the user interrupts the process the finally clause must still be run.
I am really can not agree with you on this point.

there is runtime error and static error in PHP.

it is enough for finally guarantee that the block will be run while
*Exception* threw.

if in your opinion, then I think finally is also nouse for java, since
user could also call exit(some like that ).

thank
>
> Basically this requires that all of the actions that are currently
> fatal need to be converted to exceptions. E.g. Python has special
> SystemExit and KeyboardInterrupt exceptions, as well as SyntaxError
> and so on.
>
> I obviously think that PHP should adopt this model too (as it gives
> the programmer more control), but until all fatal actions are turned
> into exceptions, I'm strongly against introducing "finally". The main
> point of the clause is to have a guarantee, and that is simply
> currently not present. You actually get a better guarantee if you just
> use destructors.
>
> Nikita



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