On 04/26/2016 05:19 PM, Bob Weinand wrote:
Am 26.04.2016 um 15:33 schrieb Dmitry Stogov <dmi...@zend.com>:
hi Levi,
It looks like your "work" on "Nullable Types" RFC was intended to win time for this patch
and block "Nullable Types" again.
Actually, you have been blocking it for more than a year :(
I'm going to push my own RFC for voting together with "Union Types".
https://wiki.php.net/rfc/nullable_return_types
At least, it has up to date implementation.
We discussed this internally 2-3 weeks ago, and my politeness (or/and
stupidity) allowed you to pass your version for common discussion.
Now I can see your real reason :(
Both "Union Types" and "Nullable Types" may make sense, and both should be
voted at the same time.
Tomorrow is time to start voting. Right?
Thanks. Dmitry.
________________________________________
From: Levi Morrison <morrison.l...@gmail.com>
Sent: Tuesday, April 26, 2016 02:37
To: internals
Subject: [PHP-DEV] [RFC] Patch for Union and Intersection Types
Internals,
Joe Watkins and Bob Weinand have worked out a [proof-of-concept patch
for union types][1]. Please go download it and experiment with it.
A few things to note:
* This patch includes intersection types. However, a type expression
must be either a union type or an intersection type; it doesn't
support both such as `Array | (Countable & Traversable)`.
* This patch adds `null`, `true` and `false` for type declarations.
* This patch includes conversion rules for weak types.
* It does not have short-hand for unions with null (`?Foo` being `Foo | Null`)
These features (or omitted ones) are not necessarily what will be
voted on. Rather this patch allows us to experiment with these
features in code. This experience should be helpful for us to solidify
how we actually feel about these features.
I especially would like people to try out the conversion rules for
scalar types as it has been a point of discussion.
[1]: https://github.com/php/php-src/pull/1887
Hey Dmitry,
Please, do not accuse us of blocking the nullables. This wasn't intentional and
rather a coincidence that we provided a patch right now.
First we wanted to concentrate our forces on getting a great 7.0 out before
starting this RFC (as it didn't make it in time for going into 7.0 too as we
waited for result on scalar types in general first).
Then, as you're aware Levi had absolutely no time for a few months… Now, he has
time to manage things and we could move ahead quickly and write the patch up.
I know, we all like to make our best for PHP.
Sorry, if I was too emotional.
I'd like to hold first a formal (and binding) vote on whether "null |" or "?"
should be used (in case both RFCs pass). Rushing things through right now might just us ending up
with semantics the vast majority dislikes.
I didn't exactly get, what do you propose. One RFC with voting for
"Nullable" or "Union"?
Thanks. Dmitry.
Thanks,
Bob
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