X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs-website;a=blobdiff_plain;f=vendor%2Fsymfony%2Fdebug%2FDebugClassLoader.php;fp=vendor%2Fsymfony%2Fdebug%2FDebugClassLoader.php;h=12d379aa752b29f8b424385e6f7c4f630138ab2c;hp=0000000000000000000000000000000000000000;hb=a2bd1bf0c2c1f1a17d188f4dc0726a45494cefae;hpb=57c063afa3f66b07c4bbddc2d6129a96d90f0aad diff --git a/vendor/symfony/debug/DebugClassLoader.php b/vendor/symfony/debug/DebugClassLoader.php new file mode 100644 index 000000000..12d379aa7 --- /dev/null +++ b/vendor/symfony/debug/DebugClassLoader.php @@ -0,0 +1,349 @@ + + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ + +namespace Symfony\Component\Debug; + +/** + * Autoloader checking if the class is really defined in the file found. + * + * The ClassLoader will wrap all registered autoloaders + * and will throw an exception if a file is found but does + * not declare the class. + * + * @author Fabien Potencier + * @author Christophe Coevoet + * @author Nicolas Grekas + */ +class DebugClassLoader +{ + private $classLoader; + private $isFinder; + private $wasFinder; + private static $caseCheck; + private static $deprecated = array(); + private static $php7Reserved = array('int', 'float', 'bool', 'string', 'true', 'false', 'null'); + private static $darwinCache = array('/' => array('/', array())); + + /** + * Constructor. + * + * @param callable|object $classLoader Passing an object is @deprecated since version 2.5 and support for it will be removed in 3.0 + */ + public function __construct($classLoader) + { + $this->wasFinder = is_object($classLoader) && method_exists($classLoader, 'findFile'); + + if ($this->wasFinder) { + @trigger_error('The '.__METHOD__.' method will no longer support receiving an object into its $classLoader argument in 3.0.', E_USER_DEPRECATED); + $this->classLoader = array($classLoader, 'loadClass'); + $this->isFinder = true; + } else { + $this->classLoader = $classLoader; + $this->isFinder = is_array($classLoader) && method_exists($classLoader[0], 'findFile'); + } + + if (!isset(self::$caseCheck)) { + $file = file_exists(__FILE__) ? __FILE__ : rtrim(realpath('.'), DIRECTORY_SEPARATOR); + $i = strrpos($file, DIRECTORY_SEPARATOR); + $dir = substr($file, 0, 1 + $i); + $file = substr($file, 1 + $i); + $test = strtoupper($file) === $file ? strtolower($file) : strtoupper($file); + $test = realpath($dir.$test); + + if (false === $test || false === $i) { + // filesystem is case sensitive + self::$caseCheck = 0; + } elseif (substr($test, -strlen($file)) === $file) { + // filesystem is case insensitive and realpath() normalizes the case of characters + self::$caseCheck = 1; + } elseif (false !== stripos(PHP_OS, 'darwin')) { + // on MacOSX, HFS+ is case insensitive but realpath() doesn't normalize the case of characters + self::$caseCheck = 2; + } else { + // filesystem case checks failed, fallback to disabling them + self::$caseCheck = 0; + } + } + } + + /** + * Gets the wrapped class loader. + * + * @return callable|object A class loader. Since version 2.5, returning an object is @deprecated and support for it will be removed in 3.0 + */ + public function getClassLoader() + { + return $this->wasFinder ? $this->classLoader[0] : $this->classLoader; + } + + /** + * Wraps all autoloaders. + */ + public static function enable() + { + // Ensures we don't hit https://bugs.php.net/42098 + class_exists('Symfony\Component\Debug\ErrorHandler'); + class_exists('Psr\Log\LogLevel'); + + if (!is_array($functions = spl_autoload_functions())) { + return; + } + + foreach ($functions as $function) { + spl_autoload_unregister($function); + } + + foreach ($functions as $function) { + if (!is_array($function) || !$function[0] instanceof self) { + $function = array(new static($function), 'loadClass'); + } + + spl_autoload_register($function); + } + } + + /** + * Disables the wrapping. + */ + public static function disable() + { + if (!is_array($functions = spl_autoload_functions())) { + return; + } + + foreach ($functions as $function) { + spl_autoload_unregister($function); + } + + foreach ($functions as $function) { + if (is_array($function) && $function[0] instanceof self) { + $function = $function[0]->getClassLoader(); + } + + spl_autoload_register($function); + } + } + + /** + * Finds a file by class name. + * + * @param string $class A class name to resolve to file + * + * @return string|null + * + * @deprecated since version 2.5, to be removed in 3.0. + */ + public function findFile($class) + { + @trigger_error('The '.__METHOD__.' method is deprecated since version 2.5 and will be removed in 3.0.', E_USER_DEPRECATED); + + if ($this->wasFinder) { + return $this->classLoader[0]->findFile($class); + } + } + + /** + * Loads the given class or interface. + * + * @param string $class The name of the class + * + * @return bool|null True, if loaded + * + * @throws \RuntimeException + */ + public function loadClass($class) + { + ErrorHandler::stackErrors(); + + try { + if ($this->isFinder) { + if ($file = $this->classLoader[0]->findFile($class)) { + require_once $file; + } + } else { + call_user_func($this->classLoader, $class); + $file = false; + } + } catch (\Exception $e) { + ErrorHandler::unstackErrors(); + + throw $e; + } catch (\Throwable $e) { + ErrorHandler::unstackErrors(); + + throw $e; + } + + ErrorHandler::unstackErrors(); + + $exists = class_exists($class, false) || interface_exists($class, false) || (function_exists('trait_exists') && trait_exists($class, false)); + + if ('\\' === $class[0]) { + $class = substr($class, 1); + } + + if ($exists) { + $refl = new \ReflectionClass($class); + $name = $refl->getName(); + + if ($name !== $class && 0 === strcasecmp($name, $class)) { + throw new \RuntimeException(sprintf('Case mismatch between loaded and declared class names: %s vs %s', $class, $name)); + } + + if (in_array(strtolower($refl->getShortName()), self::$php7Reserved)) { + @trigger_error(sprintf('%s uses a reserved class name (%s) that will break on PHP 7 and higher', $name, $refl->getShortName()), E_USER_DEPRECATED); + } elseif (preg_match('#\n \* @deprecated (.*?)\r?\n \*(?: @|/$)#s', $refl->getDocComment(), $notice)) { + self::$deprecated[$name] = preg_replace('#\s*\r?\n \* +#', ' ', $notice[1]); + } else { + if (2 > $len = 1 + (strpos($name, '\\', 1 + strpos($name, '\\')) ?: strpos($name, '_'))) { + $len = 0; + $ns = ''; + } else { + switch ($ns = substr($name, 0, $len)) { + case 'Symfony\Bridge\\': + case 'Symfony\Bundle\\': + case 'Symfony\Component\\': + $ns = 'Symfony\\'; + $len = strlen($ns); + break; + } + } + $parent = get_parent_class($class); + + if (!$parent || strncmp($ns, $parent, $len)) { + if ($parent && isset(self::$deprecated[$parent]) && strncmp($ns, $parent, $len)) { + @trigger_error(sprintf('The %s class extends %s that is deprecated %s', $name, $parent, self::$deprecated[$parent]), E_USER_DEPRECATED); + } + + $parentInterfaces = array(); + $deprecatedInterfaces = array(); + if ($parent) { + foreach (class_implements($parent) as $interface) { + $parentInterfaces[$interface] = 1; + } + } + + foreach ($refl->getInterfaceNames() as $interface) { + if (isset(self::$deprecated[$interface]) && strncmp($ns, $interface, $len)) { + $deprecatedInterfaces[] = $interface; + } + foreach (class_implements($interface) as $interface) { + $parentInterfaces[$interface] = 1; + } + } + + foreach ($deprecatedInterfaces as $interface) { + if (!isset($parentInterfaces[$interface])) { + @trigger_error(sprintf('The %s %s %s that is deprecated %s', $name, $refl->isInterface() ? 'interface extends' : 'class implements', $interface, self::$deprecated[$interface]), E_USER_DEPRECATED); + } + } + } + } + } + + if ($file) { + if (!$exists) { + if (false !== strpos($class, '/')) { + throw new \RuntimeException(sprintf('Trying to autoload a class with an invalid name "%s". Be careful that the namespace separator is "\" in PHP, not "/".', $class)); + } + + throw new \RuntimeException(sprintf('The autoloader expected class "%s" to be defined in file "%s". The file was found but the class was not in it, the class name or namespace probably has a typo.', $class, $file)); + } + if (self::$caseCheck) { + $real = explode('\\', $class.strrchr($file, '.')); + $tail = explode(DIRECTORY_SEPARATOR, str_replace('/', DIRECTORY_SEPARATOR, $file)); + + $i = count($tail) - 1; + $j = count($real) - 1; + + while (isset($tail[$i], $real[$j]) && $tail[$i] === $real[$j]) { + --$i; + --$j; + } + + array_splice($tail, 0, $i + 1); + } + if (self::$caseCheck && $tail) { + $tail = DIRECTORY_SEPARATOR.implode(DIRECTORY_SEPARATOR, $tail); + $tailLen = strlen($tail); + $real = $refl->getFileName(); + + if (2 === self::$caseCheck) { + // realpath() on MacOSX doesn't normalize the case of characters + + $i = 1 + strrpos($real, '/'); + $file = substr($real, $i); + $real = substr($real, 0, $i); + + if (isset(self::$darwinCache[$real])) { + $kDir = $real; + } else { + $kDir = strtolower($real); + + if (isset(self::$darwinCache[$kDir])) { + $real = self::$darwinCache[$kDir][0]; + } else { + $dir = getcwd(); + chdir($real); + $real = getcwd().'/'; + chdir($dir); + + $dir = $real; + $k = $kDir; + $i = strlen($dir) - 1; + while (!isset(self::$darwinCache[$k])) { + self::$darwinCache[$k] = array($dir, array()); + self::$darwinCache[$dir] = &self::$darwinCache[$k]; + + while ('/' !== $dir[--$i]) { + } + $k = substr($k, 0, ++$i); + $dir = substr($dir, 0, $i--); + } + } + } + + $dirFiles = self::$darwinCache[$kDir][1]; + + if (isset($dirFiles[$file])) { + $kFile = $file; + } else { + $kFile = strtolower($file); + + if (!isset($dirFiles[$kFile])) { + foreach (scandir($real, 2) as $f) { + if ('.' !== $f[0]) { + $dirFiles[$f] = $f; + if ($f === $file) { + $kFile = $k = $file; + } elseif ($f !== $k = strtolower($f)) { + $dirFiles[$k] = $f; + } + } + } + self::$darwinCache[$kDir][1] = $dirFiles; + } + } + + $real .= $dirFiles[$kFile]; + } + + if (0 === substr_compare($real, $tail, -$tailLen, $tailLen, true) + && 0 !== substr_compare($real, $tail, -$tailLen, $tailLen, false) + ) { + throw new \RuntimeException(sprintf('Case mismatch between class and real file names: %s vs %s in %s', substr($tail, -$tailLen + 1), substr($real, -$tailLen + 1), substr($real, 0, -$tailLen + 1))); + } + } + + return true; + } + } +}