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Date: Wed, 6 Jun 2012 21:23:27 +0200
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To: Laruence <laruence@php.net>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Generators in PHP
From: nikita.ppv@googlemail.com (Nikita Popov)

On Wed, Jun 6, 2012 at 4:15 AM, Laruence <laruence@php.net> wrote:
> Hi Nikita:
>
> =A0 =A0the most important part to me is how did you implemented `yield`
> keyword, =A0 is there a whole patch file I can look into?
>
> =A0 =A0what will happen if you use a `yield` in a normal function?
>
> =A0 =A0actually, =A0I tried to implemented coroutine, but since I could n=
ot
> find a way to make zend_execute interruptable, then I didn't make it.
Yes I also faced that problem. The current execute() function accepts
an op_array and initializes the execution context from that
(execute_data + CVs + Ts).

So I added a new function execute_ex() which takes that execution
context directly. The execute() function now works by initializing the
execute_data using a new zend_create_execute_data_from_op_array()
function and then calls execute_ex() with it.

The most relevant commit for this change is
https://github.com/nikic/php-src/commit/f627be52540738e124da7cb1566d7f60a2b=
6a48b.

Nikita