Hello Ivan,
Moreover, I wonder how a “recursive yield” would act (something like
> “public function *f ( … ) { … yield $this->f(…); … }”). It is possible? Is
> it anticipated?
>
According to the RFC, your syntax will yield an entire generator and not
its intividual values. Please consider this example:
function * f() { ... }
function * g() {
yield f();
}
function * h() {
foreach( f() as $key => $value )
yield $key => value;
}
The pattern in function h() is quite common, and it is what you ask for. It
would be nice to have some syntactical sugar for it, maybe something like
that:
public function * h() {
yield foreach f();
}
Good work, I am looking forward to having generators in php.
Lazare INEPOLOGLOU
Ingénieur Logiciel
2012/6/6 Ivan Enderlin @ Hoa <ivan.ender...@hoa-project.net>
> On 05/06/12 19:35, Nikita Popov wrote:
>
>> Hi internals!
>>
> Hi Nikita,
>
> Before going any further I'd like to get some comments about what you
>> think of adding generator support to PHP.
>>
> I have always hoped to see the “yield” keywork introduced in PHP. I even
> suggested that in this mailing-list at least one time but I'm very glad to
> see some patches coming out.
>
> In addition to Gustavo's remarks, I wonder how the GC would collect a
> Generator object that is not use anymore (especially with a referenced
> yield). Does it fit to the current CG strategy or do we need an extra
> strategy? I would notice that the “Yield by reference” section does not
> exist but you have targeted it).
> Moreover, I wonder how a “recursive yield” would act (something like
> “public function *f ( … ) { … yield $this->f(…); … }”). It is possible? Is
> it anticipated?
>
> Thanks for you work.
>
> Cheers.
>
> --
> Ivan Enderlin
> Developer of Hoa
> http://hoa.42/ or http://hoa-project.net/
>
> PhD. student at DISC/Femto-ST (Vesontio) and INRIA (Cassis)
> http://disc.univ-fcomte.fr/ and http://www.inria.fr/
>
> Member of HTML and WebApps Working Group of W3C
> http://w3.org/
>
>
>
> --
> PHP Internals - PHP Runtime Development Mailing List
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
