PHP Classes

File: vendor/symfony/debug/DebugClassLoader.php

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File: vendor/symfony/debug/DebugClassLoader.php
Role: Class source
Content type: text/plain
Description: Class source
Class: PHP Pokemon Script
Provides an API to manage a database of Pokemons
Author: By
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Date: 6 years ago
Size: 14,165 bytes
 

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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * 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 <fabien@symfony.com> * @author Christophe Coevoet <stof@notk.org> * @author Nicolas Grekas <p@tchwork.com> */ class DebugClassLoader { private $classLoader; private $isFinder; private static $caseCheck; private static $final = array(); private static $finalMethods = array(); private static $deprecated = array(); private static $php7Reserved = array('int', 'float', 'bool', 'string', 'true', 'false', 'null'); private static $darwinCache = array('/' => array('/', array())); /** * Constructor. * * @param callable $classLoader A class loader */ public function __construct(callable $classLoader) { $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 The wrapped class loader */ public function getClassLoader() { return $this->classLoader; } /** * Wraps all autoloaders. */ public static function enable() { // Ensures we don't hit https://bugs.php.net/42098 class_exists('Symfony\Component\Debug\ErrorHandler'); class_exists('Psr\Log\LogLevel'); if (!is_array($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); } } /** * 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; } } finally { ErrorHandler::unstackErrors(); } $exists = class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false); if ($class && '\\' === $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)); } $parent = get_parent_class($class); // Not an interface nor a trait if (class_exists($name, false)) { if (preg_match('#\n \* @final(?:( .+?)\.?)?\r?\n \*(?: @|/$)#s', $refl->getDocComment(), $notice)) { self::$final[$name] = isset($notice[1]) ? preg_replace('#\s*\r?\n \* +#', ' ', $notice[1]) : ''; } if ($parent && isset(self::$final[$parent])) { @trigger_error(sprintf('The "%s" class is considered final%s. It may change without further notice as of its next major version. You should not extend it from "%s".', $parent, self::$final[$parent], $name), E_USER_DEPRECATED); } // Inherit @final annotations self::$finalMethods[$name] = $parent && isset(self::$finalMethods[$parent]) ? self::$finalMethods[$parent] : array(); foreach ($refl->getMethods(\ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_PROTECTED) as $method) { if ($method->class !== $name) { continue; } if ($parent && isset(self::$finalMethods[$parent][$method->name])) { @trigger_error(sprintf('%s It may change without further notice as of its next major version. You should not extend it from "%s".', self::$finalMethods[$parent][$method->name], $name), E_USER_DEPRECATED); } $doc = $method->getDocComment(); if (false === $doc || false === strpos($doc, '@final')) { continue; } if (preg_match('#\n\s+\* @final(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$)#s', $doc, $notice)) { $message = isset($notice[1]) ? preg_replace('#\s*\r?\n \* +#', ' ', $notice[1]) : ''; self::$finalMethods[$name][$method->name] = sprintf('The "%s::%s()" method is considered final%s.', $name, $method->name, $message); } } } if (in_array(strtolower($refl->getShortName()), self::$php7Reserved)) { @trigger_error(sprintf('The "%s" class uses the reserved name "%s", it 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 { // Don't trigger deprecations for classes in the same vendor 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; } } 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; } } }