Req #53081 [Com]: why you should bring back abstract static methods

From: Date: Sat, 16 Oct 2010 17:39:13 +0000
Subject: Req #53081 [Com]: why you should bring back abstract static methods
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-155252@lists.php.net to get a copy of this message
Edit report at http://bugs.php.net/bug.php?id=53081&edit=1

 ID:                 53081
 Comment by:         giorgio dot liscio at email dot it
 Reported by:        giorgio dot liscio at email dot it
 Summary:            why you should bring back abstract static methods
 Status:             Bogus
 Type:               Feature/Change Request
 Package:            Class/Object related
 PHP Version:        5.3.3
 Block user comment: N

 New Comment:

so, felipe says that is not a bug and hes right

rasmus you say that this code is correct, but i still get a strict
warning

abstract class cA {
      static function A(){static::B();}
      abstract static function B();
}

class cB extends cA {
    static function B(){echo "ok";}
}

cB::A();


Previous Comments:
------------------------------------------------------------------------
[2010-10-16 09:37:51] giorgio dot liscio at email dot it

no more a change request

http://bugs.php.net/bug.php?id=53082

bug reported

thank you Rasmus!

------------------------------------------------------------------------
[2010-10-16 09:27:47] giorgio dot liscio at email dot it

ok it is a php bug, it is related to files and namespaces... 

if you put this in global space works (no error triggered)

<?php
// index.php
ini_set("display_errors", true);
ini_set("error_reporting", E_ALL | E_STRICT);
require("FSNuovo/Directory.php");
?>


<?php
// FSNuovo/Directory.php
namespace FSNuovo;
abstract class AbstractFileSystemItem
{
	abstract static function ensurePathIsValid($fullPath);
}
class Dir extends AbstractFileSystemItem
{
	static function ensurePathIsValid($fullPath){}
}
?>

------------------------------------------------------------------------
[2010-10-16 09:01:34] giorgio dot liscio at email dot it

i'm investigating about my error

Static function FSItem::ensurePathIsValid() should not be abstract

------------------------------------------------------------------------
[2010-10-16 08:55:31] giorgio dot liscio at email dot it

so this:

Dropped abstract static class functions. Due to an oversight, PHP 5.0.x
and 5.1.x allowed abstract static functions in classes. As of PHP 5.2.x,
only interfaces can have them.

is not valid no more in 5.3?

------------------------------------------------------------------------
[2010-10-16 08:48:55] rasmus@php.net

What's not allowed?


abstract class cA {
      static function A(){static::B();}
      abstract static function B();
}

class cB extends cA {
    static function B(){echo "ok";}
}

cB::A();


This works fine.  You obviously can't call self::B(), but static::B() is
fine.

------------------------------------------------------------------------


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the rest of the comments, please view the bug report online at

    http://bugs.php.net/bug.php?id=53081


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Edit this bug report at http://bugs.php.net/bug.php?id=53081&edit=1


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