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In-Reply-To: <CALKiJKphXdQNj9Q9N5FDyuSUGs57bPP8KHceJkj+mr4bMv_gCQ@mail.gmail.com>
Date: Thu, 21 Mar 2019 18:40:23 +0000
Message-ID: <CAMuFt-51dX9UUDArBCif=9FEehR2wkRZgRhmf9kmy_BXfpQ5JQ@mail.gmail.com>
To: Rowan Collins <rowan.collins@gmail.com>
Cc: PHP internals <internals@lists.php.net>
Content-Type: text/plain; charset="UTF-8"
Subject: Re: [PHP-DEV] RFC Draft: Comprehensions
From: robehickman@gmail.com (Robert Hickman)

On Thu, 21 Mar 2019 at 16:15, Rowan Collins <rowan.collins@gmail.com> wrote:
>
> On Thu, 21 Mar 2019 at 15:21, Robert Hickman <robehickman@gmail.com> wrote:
>>
>> In this case nextIf() would have to be implemented something like:
>>
>> function nextif($someCondition) {
>>     foreach($this->iteratorValue as $x) {
>>         if(<some comparison of $x and $$someCondition) {
>>              yield $x;
>>         }
>>     }
>> }
>>
>> iterator_to_array would need an internal loop to pull the values from
>> the generator.
>
>
>
> I think it would be more like this:
>
> function nextif($someCondition) {
>     do {
>         $this->currentIndex++;
>         $x = $this->items[ $this->currentIndex ];
>     } while ( ! some comparison of $x and $$someCondition);
>     return $x;
> }
>

Thanks, that makes sense.