MediaWiki REL1_33
StubObject.php
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1<?php
22use Wikimedia\ObjectFactory;
23
47 protected $global;
48
50 protected $class;
51
53 protected $factory;
54
56 protected $params;
57
64 public function __construct( $global = null, $class = null, $params = [] ) {
65 $this->global = $global;
66 if ( is_callable( $class ) ) {
67 $this->factory = $class;
68 } else {
69 $this->class = $class;
70 }
71 $this->params = $params;
72 }
73
81 public static function isRealObject( $obj ) {
82 return is_object( $obj ) && !$obj instanceof StubObject;
83 }
84
93 public static function unstub( &$obj ) {
94 if ( $obj instanceof StubObject ) {
95 $obj = $obj->_unstub( 'unstub', 3 );
96 }
97 }
98
110 public function _call( $name, $args ) {
111 $this->_unstub( $name, 5 );
112 return call_user_func_array( [ $GLOBALS[$this->global], $name ], $args );
113 }
114
119 public function _newObject() {
120 $params = $this->factory
121 ? [ 'factory' => $this->factory ]
122 : [ 'class' => $this->class ];
123 return ObjectFactory::getObjectFromSpec( $params + [
124 'args' => $this->params,
125 'closure_expansion' => false,
126 ] );
127 }
128
137 public function __call( $name, $args ) {
138 return $this->_call( $name, $args );
139 }
140
153 public function _unstub( $name = '_unstub', $level = 2 ) {
154 static $recursionLevel = 0;
155
156 if ( !$GLOBALS[$this->global] instanceof StubObject ) {
157 return $GLOBALS[$this->global]; // already unstubbed.
158 }
159
160 if ( get_class( $GLOBALS[$this->global] ) != $this->class ) {
161 $caller = wfGetCaller( $level );
162 if ( ++$recursionLevel > 2 ) {
163 throw new MWException( "Unstub loop detected on call of "
164 . "\${$this->global}->$name from $caller\n" );
165 }
166 wfDebug( "Unstubbing \${$this->global} on call of "
167 . "\${$this->global}::$name from $caller\n" );
169 --$recursionLevel;
170 return $GLOBALS[$this->global];
171 }
172 }
173}
174
179
180 public function __construct() {
181 parent::__construct( 'wgLang' );
182 }
183
196 public function findVariantLink( &$link, &$nt, $ignoreOtherCond = false ) {
197 global $wgLang;
198 $this->_unstub( 'findVariantLink', 3 );
199 $wgLang->findVariantLink( $link, $nt, $ignoreOtherCond );
200 }
201
205 public function _newObject() {
206 return RequestContext::getMain()->getLanguage();
207 }
208}
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
$GLOBALS['IP']
wfDebug( $text, $dest='all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
wfGetCaller( $level=2)
Get the name of the function which called this function wfGetCaller( 1 ) is the function with the wfG...
$wgLang
Definition Setup.php:875
if( $line===false) $args
Definition cdb.php:64
MediaWiki exception.
Class to implement stub globals, which are globals that delay loading the their associated module cod...
_unstub( $name='_unstub', $level=2)
This function creates a new object of the real class and replace it in the global variable.
null string $global
_call( $name, $args)
Function called if any function exists with that name in this object.
null callable $factory
array $params
static unstub(&$obj)
Unstubs an object, if it is a stub object.
_newObject()
Create a new object to replace this stub object.
null string $class
__construct( $global=null, $class=null, $params=[])
__call( $name, $args)
Function called by PHP if no function with that name exists in this object.
static isRealObject( $obj)
Returns a bool value whenever $obj is a stub object.
Stub object for the user language.
findVariantLink(&$link, &$nt, $ignoreOtherCond=false)
Call Language::findVariantLink after unstubbing $wgLang.
usually copyright or history_copyright This message must be in HTML not wikitext & $link
Definition hooks.txt:3069
Allows to change the fields on the form that will be generated $name
Definition hooks.txt:271
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))