Merge "Add tags for undo edits"

[lhc/web/wiklou.git] / includes / AutoLoader.php

diff --git a/includes/AutoLoader.php b/includes/AutoLoader.php
index 883b8a3..52410fe 100644 (file)
--- a/includes/AutoLoader.php
+++ b/includes/AutoLoader.php
@@ -30,6 +30,12 @@ require_once __DIR__ . '/../autoload.php';
 class AutoLoader {
        static protected $autoloadLocalClassesLower = null;
 
+       /**
+        * @private Only public for ExtensionRegistry
+        * @var string[] Namespace (ends with \) => Path (ends with /)
+        */
+       static public $psr4Namespaces = [];
+
        /**
         * autoload - take a class name and attempt to load it
         *
@@ -67,6 +73,28 @@ class AutoLoader {
                        }
                }
 
+               if ( !$filename && strpos( $className, '\\' ) !== false ) {
+                       // This class is namespaced, so try looking at the namespace map
+                       $prefix = $className;
+                       while ( false !== $pos = strrpos( $prefix, '\\' ) ) {
+                               // Check to see if this namespace prefix is in the map
+                               $prefix = substr( $className, 0, $pos + 1 );
+                               if ( isset( self::$psr4Namespaces[$prefix] ) ) {
+                                       $relativeClass = substr( $className, $pos + 1 );
+                                       // Build the expected filename, and see if it exists
+                                       $file = self::$psr4Namespaces[$prefix] .
+                                               str_replace( '\\', '/', $relativeClass ) . '.php';
+                                       if ( file_exists( $file ) ) {
+                                               $filename = $file;
+                                               break;
+                                       }
+                               }
+
+                               // Remove trailing separator for next iteration
+                               $prefix = rtrim( $prefix, '\\' );
+                       }
+               }
+
                if ( !$filename ) {
                        // Class not found; let the next autoloader try to find it
                        return;
@@ -81,18 +109,6 @@ class AutoLoader {
                require $filename;
        }
 
-       /**
-        * Force a class to be run through the autoloader, helpful for things like
-        * Sanitizer that have define()s outside of their class definition. Of course
-        * this wouldn't be necessary if everything in MediaWiki was class-based. Sigh.
-        *
-        * @param string $class
-        * @return bool Return the results of class_exists() so we know if we were successful
-        */
-       static function loadClass( $class ) {
-               return class_exists( $class );
-       }
-
        /**
         * Method to clear the protected class property $autoloadLocalClassesLower.
         * Used in tests.
@@ -100,6 +116,22 @@ class AutoLoader {
        static function resetAutoloadLocalClassesLower() {
                self::$autoloadLocalClassesLower = null;
        }
+
+       /**
+        * Get a mapping of namespace => file path
+        * The namespaces should follow the PSR-4 standard for autoloading
+        *
+        * @see <http://www.php-fig.org/psr/psr-4/>
+        * @private Only public for usage in AutoloadGenerator
+        * @since 1.31
+        * @return string[]
+        */
+       public static function getAutoloadNamespaces() {
+               return [
+                       'MediaWiki\\Linker\\' => __DIR__ .'/linker/'
+               ];
+       }
 }
 
+AutoLoader::$psr4Namespaces = AutoLoader::getAutoloadNamespaces();
 spl_autoload_register( [ 'AutoLoader', 'autoload' ] );