Req #47872 [Com]: PHP 5.3+ support for namespace wildcards (use statement)
Edit report at http://bugs.php.net/bug.php?id=47872&edit=1
ID: 47872
Comment by: iffzy at atomar dot de
Reported by: kwutzke at web dot de
Summary: PHP 5.3+ support for namespace wildcards (use
statement)
Status: Bogus
Type: Feature/Change Request
Package: Feature/Change Request
Operating System: all
PHP Version: 5.3.0RC1
Block user comment: N
Private report: N
New Comment:
It may be a major slowdown when used by idiots.
But sometimes this limitation it a major nuisance.
I don't need a f*****g nanny for this :/
(yeah I know.. I should silently switch to python.. feels like flogging
a dead horse..)
Previous Comments:
------------------------------------------------------------------------
[2009-04-03 19:40:40] johannes@php.net
We have no class loading mechanism like Java but need the class names
while compiling the PHP script. Offering an import foo\* would be a a
major slowdown.
------------------------------------------------------------------------
[2009-04-02 02:55:05] kwutzke at web dot de
Another option, which I can't quite assess, would be to always
(silently) use the root namespace. For some reason I don't believe this
is a good idea in PHP. Maybe because, as seen in my example, is the
ability to expand the root/global namespace with other (own) classes.
------------------------------------------------------------------------
[2009-04-02 02:50:20] kwutzke at web dot de
Other examples of use wildcards are:
use \namespace2\*;
use \otherns\*;
use \myown\sub\*;
use \myown\sub\subsub\*;
------------------------------------------------------------------------
[2009-04-02 02:44:11] kwutzke at web dot de
Description:
------------
When using namespaces you always have to put the exact 'use \ClassName'
statement into the code. This list of dependencies can become quite
large in some classes. To relieve programmers from having to manually
put use statements to the top (or elsewhere) a namespace wildcard should
be added to the language.
Much like in Java, where in stead of writing
import java.awt.Image;
import javax.swing.JTextField;
import javax.swing.JComboBox;
import javax.swing.JSpinner;
import javax.swing.JCheckBox;
import javax.swing.JRadioButton;
import javax.swing.JMenuItem;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
one could write
import java.awt.*;
import javax.swing.*;
This saves a lot of time while writing the code. An IDE (plugin) might
replace the wildcards with the actually used classes.
Wrting
use \*;
seems natural to me. Don't know how much this RFE is possible
language-wise. It would however make lots of sense for PHP 5.3.
I'm not sure if this is the right place to ask for a language
enhancement of this caliber.
Reproduce code:
---------------
<?php
namespace whatever; //in dir whatever
//use \*; <- why not???
//PHP standard classes
use \Exception;
//ZF classes
use \Zend_Version;
class ZfTools
{
public static function checkVersion($strRequiredVersion = '1.5.1')
{
switch ( Zend_Version::compareVersion($strRequiredVersion) )
{
case -1: //required is older
return true;
case 0: //equal
case 1: //newer
return false;
default: //should never be executed
throw new Exception('Error comparing Zend Framework version!');
}
}
}
?>
Expected result:
----------------
use \*;
would compile so that Zend_Version and Exception can be used without
leading backslashes.
Actual result:
--------------
use \*;
Generates a parse error "Parse error: parse error, expecting `T_STRING'
in C:\dev\apache\htdocs\whatever\ZfTools.php on line 5"
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=47872&edit=1
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