[wp-trac] [WordPress Trac] #9886: Pass $this as the second argument in WP_Query filters

[WordPress Trac]

#9886: Pass $this as the second argument in WP_Query filters
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 Reporter:  westi        |       Owner:  westi                 
     Type:  enhancement  |      Status:  new                   
 Priority:  normal       |   Milestone:  3.0                   
Component:  Plugins      |     Version:  2.8                   
 Severity:  major        |    Keywords:  has-patch commit early
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Comment(by scribu):

 Replying to [comment:18 westi]:
 > From memory you need to package the reference up in an array so that you
 can pass it to a function which doesn't take a reference explicitly - it
 have a variable length arguments list

 Here's what I've found while looking in wp-includes/plugin.php:

 do_action() contains these lines:

 {{{
 if ( is_array($arg) && 1 == count($arg) && is_object($arg[0]) ) //
 array(&$this)
         $args[] =& $arg[0];
 }}}

 And here is the description for do_action_ref_array():

 {{{
  * Execute functions hooked on a specific action hook, specifying
 arguments in an array.
  *
  * @see do_action() This function is identical, but the arguments passed
 to the
  * functions hooked to <tt>$tag</tt> are supplied using an array.
 }}}

 So, either the docs are wrong or we're using do_action_ref_array() wrong.

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/9886#comment:21>
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