Bug #68194 [Opn]: Closure captures late bound class too eagerly
Edit report at https://bugs.php.net/bug.php?id=68194&edit=1
ID: 68194
Updated by: tyrael@php.net
Reported by: denis at slik dot eu
Summary: Closure captures late bound class too eagerly
Status: Open
Type: Bug
Package: Scripting Engine problem
Operating System: Irrelevant
PHP Version: 5.6.1
-Assigned To:
+Assigned To: levim
Block user comment: N
Private report: N
New Comment:
Levi, could you look into this please?
Previous Comments:
------------------------------------------------------------------------
[2014-10-09 06:54:43] denis at slik dot eu
Description:
------------
In #66622, Closures have been changed to capture the late bound class very eagerly to make the
static keyword work.
This had a side effect of backwards-incompatible visibility breaking.
For a full example, see http://3v4l.org/O5dLF.
This worked in <=5.4.29, <=5.5.13, but breaks in >=5.4.30, >=5.5.14, >=5.6.1.
It would seem sensible that refactoring the code inside a closure would not change the visibility
restrictions.
Test script:
---------------
class Base {
public static function hi() {
echo Left::$prot;
$cl = function(){
echo Left::$prot;
};
$cl();
}
}
class Left extends Base {
protected static $prot = "works\n";
}
class Right extends Base {
}
Right::hi();
Expected result:
----------------
works
works
Actual result:
--------------
works
Fatal error: Cannot access protected property Left::$prot
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=68194&edit=1
Thread (10 messages)