Re: [RFC] Union Types v2
| From: | Claude Pache | Date: | Thu, 26 Sep 2019 09:54:12 +0000 |
| Subject: | Re: [RFC] Union Types v2 | ||
| References: | 1 2 3 4 5 6 7 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-107328@lists.php.net to get a copy of this message | ||
> Le 26 sept. 2019 à 11:21, Lynn <kjarli@gmail.com> a écrit :
>
>
> I'm not sure this type should be declarable in user-land, meaning it's limited to the
> core and a marker for legacy.
In general, we should avoid to give builtin code functionality that can’t be reproduced in
userland, unless there is a good reason for it. For the particular case, people may want to
reproduce in userland an improved or corrected version of a given internal function, and they need
be able to give their function the same return type information than the original.
—Claude