[RFC] Patch for Union and Intersection Types

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.levi@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 -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php