1 files changed, 17 insertions, 49 deletions

diff --git a/vendor/composer/ClassLoader.php b/vendor/composer/ClassLoader.php
index 2c72175e7..5e1469e83 100644
--- a/vendor/composer/ClassLoader.php
+++ b/vendor/composer/ClassLoader.php
@@ -13,7 +13,9 @@
 namespace Composer\Autoload;
 
 /**
- * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.
+ * ClassLoader implements a PSR-0 class loader
+ *
+ * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
  *
  *     $loader = new \Composer\Autoload\ClassLoader();
  *
@@ -37,8 +39,6 @@ namespace Composer\Autoload;
  *
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Jordi Boggiano <j.boggiano@seld.be>
- * @see    http://www.php-fig.org/psr/psr-0/
- * @see    http://www.php-fig.org/psr/psr-4/
  */
 class ClassLoader
 {
@@ -53,9 +53,8 @@ class ClassLoader
 
     private $useIncludePath = false;
     private $classMap = array();
+
     private $classMapAuthoritative = false;
-    private $missingClasses = array();
-    private $apcuPrefix;
 
     public function getPrefixes()
     {
@@ -148,7 +147,7 @@ class ClassLoader
      * appending or prepending to the ones previously set for this namespace.
      *
      * @param string       $prefix  The prefix/namespace, with trailing '\\'
-     * @param array|string $paths   The PSR-4 base directories
+     * @param array|string $paths   The PSR-0 base directories
      * @param bool         $prepend Whether to prepend the directories
      *
      * @throws \InvalidArgumentException
@@ -273,26 +272,6 @@ class ClassLoader
     }
 
     /**
-     * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
-     *
-     * @param string|null $apcuPrefix
-     */
-    public function setApcuPrefix($apcuPrefix)
-    {
-        $this->apcuPrefix = function_exists('apcu_fetch') && ini_get('apc.enabled') ? $apcuPrefix : null;
-    }
-
-    /**
-     * The APCu prefix in use, or null if APCu caching is not enabled.
-     *
-     * @return string|null
-     */
-    public function getApcuPrefix()
-    {
-        return $this->apcuPrefix;
-    }
-
-    /**
      * Registers this instance as an autoloader.
      *
      * @param bool $prepend Whether to prepend the autoloader or not
@@ -334,34 +313,29 @@ class ClassLoader
      */
     public function findFile($class)
     {
+        // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
+        if ('\\' == $class[0]) {
+            $class = substr($class, 1);
+        }
+
         // class map lookup
         if (isset($this->classMap[$class])) {
             return $this->classMap[$class];
         }
-        if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
+        if ($this->classMapAuthoritative) {
             return false;
         }
-        if (null !== $this->apcuPrefix) {
-            $file = apcu_fetch($this->apcuPrefix.$class, $hit);
-            if ($hit) {
-                return $file;
-            }
-        }
 
         $file = $this->findFileWithExtension($class, '.php');
 
         // Search for Hack files if we are running on HHVM
-        if (false === $file && defined('HHVM_VERSION')) {
+        if ($file === null && defined('HHVM_VERSION')) {
             $file = $this->findFileWithExtension($class, '.hh');
         }
 
-        if (null !== $this->apcuPrefix) {
-            apcu_add($this->apcuPrefix.$class, $file);
-        }
-
-        if (false === $file) {
+        if ($file === null) {
             // Remember that this class does not exist.
-            $this->missingClasses[$class] = true;
+            return $this->classMap[$class] = false;
         }
 
         return $file;
@@ -374,13 +348,9 @@ class ClassLoader
 
         $first = $class[0];
         if (isset($this->prefixLengthsPsr4[$first])) {
-            $subPath = $class;
-            while (false !== $lastPos = strrpos($subPath, '\\')) {
-                $subPath = substr($subPath, 0, $lastPos);
-                $search = $subPath.'\\';
-                if (isset($this->prefixDirsPsr4[$search])) {
-                    foreach ($this->prefixDirsPsr4[$search] as $dir) {
-                        $length = $this->prefixLengthsPsr4[$first][$search];
+            foreach ($this->prefixLengthsPsr4[$first] as $prefix => $length) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($this->prefixDirsPsr4[$prefix] as $dir) {
                         if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
                             return $file;
                         }
@@ -429,8 +399,6 @@ class ClassLoader
         if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
             return $file;
         }
-
-        return false;
     }
 }