Re: $obj->attr::method() is not allowed
| From: | Andrew Faulds | Date: | Mon, 03 Sep 2012 15:18:52 +0000 |
| Subject: | Re: $obj->attr::method() is not allowed | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-62747@lists.php.net to get a copy of this message | ||
On 03/09/12 15:51, Ivan Enderlin @ Hoa wrote:
I would like to know why? Is it a compiler related issue or just an omission? Would it be interesting to fix it? There are plenty of examples of this. One from my code:Can't do this:
self::$views[$path]();But I *can* do this:
$x = self::$views[$path]; $x();This is because PHP has a very unusual (and IMO bad) system of type-checking at parse-time, by only allowing some specific (although quite varied) types of variable access, and combinations of these. If nikic's idea to rewrite the parser to use an AST is done, I imagine this could be fixed. We could also add extra rules, but I think fixing the general issue is more important, since it's like plugging two holes in a barrel full of water that's just had a machine gun fired at it. -- Andrew Faulds http://ajf.me/