On 04/14/2016 06:42 AM, Levi Morrison wrote:
As alluded to in an earlier email today[1] I am now moving the
Nullable Types RFC[2] to the discussion phase. In a nutshell this RFC
proposes syntax for declaring a type to alternatively be null.
+1
The up to date implementation for return-type-hints may be found at
https://github.com/php/php-src/pull/1851/files
Implementation for argument-type-hints is really not a problem
There is a decision that needs to be made: does the question mark go
before or after the type name?
function (?Foo $foo);
function (Foo? $foo);
There are precedents in several languages for each position. Some
relevant issues to where the question mark goes are noted in the
RFC[3].
It's better to use ? position before the type, to reduce fragmentation
with HHVM.
Thanks. Dmitry.
I look forward to a helpful and meaningful discussion!
[1]: http://news.php.net/php.internals/92252
[2]: https://wiki.php.net/rfc/nullable_types
[3]: https://wiki.php.net/rfc/nullable_types#position_of
--
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php
