diff options
Diffstat (limited to 'vendor/symfony/config/Resource/ClassExistenceResource.php')
| -rw-r--r-- | vendor/symfony/config/Resource/ClassExistenceResource.php | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/vendor/symfony/config/Resource/ClassExistenceResource.php b/vendor/symfony/config/Resource/ClassExistenceResource.php deleted file mode 100644 index eab04b8d0..000000000 --- a/vendor/symfony/config/Resource/ClassExistenceResource.php +++ /dev/null @@ -1,227 +0,0 @@ -<?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\Config\Resource; - -/** - * ClassExistenceResource represents a class existence. - * Freshness is only evaluated against resource existence. - * - * The resource must be a fully-qualified class name. - * - * @author Fabien Potencier <fabien@symfony.com> - * - * @final - */ -class ClassExistenceResource implements SelfCheckingResourceInterface -{ - private string $resource; - private ?array $exists = null; - - private static int $autoloadLevel = 0; - private static ?string $autoloadedClass = null; - private static array $existsCache = []; - - /** - * @param string $resource The fully-qualified class name - * @param bool|null $exists Boolean when the existence check has already been done - */ - public function __construct(string $resource, ?bool $exists = null) - { - $this->resource = $resource; - if (null !== $exists) { - $this->exists = [$exists, null]; - } - } - - public function __toString(): string - { - return $this->resource; - } - - public function getResource(): string - { - return $this->resource; - } - - /** - * @throws \ReflectionException when a parent class/interface/trait is not found - */ - public function isFresh(int $timestamp): bool - { - $loaded = class_exists($this->resource, false) || interface_exists($this->resource, false) || trait_exists($this->resource, false); - - if (null !== $exists = &self::$existsCache[$this->resource]) { - if ($loaded) { - $exists = [true, null]; - } elseif (0 >= $timestamp && !$exists[0] && null !== $exists[1]) { - throw new \ReflectionException($exists[1]); - } - } elseif ([false, null] === $exists = [$loaded, null]) { - if (!self::$autoloadLevel++) { - spl_autoload_register(__CLASS__.'::throwOnRequiredClass'); - } - $autoloadedClass = self::$autoloadedClass; - self::$autoloadedClass = ltrim($this->resource, '\\'); - - try { - $exists[0] = class_exists($this->resource) || interface_exists($this->resource, false) || trait_exists($this->resource, false); - } catch (\Exception $e) { - $exists[1] = $e->getMessage(); - - try { - self::throwOnRequiredClass($this->resource, $e); - } catch (\ReflectionException $e) { - if (0 >= $timestamp) { - throw $e; - } - } - } catch (\Throwable $e) { - $exists[1] = $e->getMessage(); - - throw $e; - } finally { - self::$autoloadedClass = $autoloadedClass; - if (!--self::$autoloadLevel) { - spl_autoload_unregister(__CLASS__.'::throwOnRequiredClass'); - } - } - } - - $this->exists ??= $exists; - - return $this->exists[0] xor !$exists[0]; - } - - /** - * @internal - */ - public function __sleep(): array - { - if (null === $this->exists) { - $this->isFresh(0); - } - - return ['resource', 'exists']; - } - - /** - * @internal - */ - public function __wakeup(): void - { - if (\is_bool($this->exists)) { - $this->exists = [$this->exists, null]; - } - } - - /** - * Throws a reflection exception when the passed class does not exist but is required. - * - * A class is considered "not required" when it's loaded as part of a "class_exists" or similar check. - * - * This function can be used as an autoload function to throw a reflection - * exception if the class was not found by previous autoload functions. - * - * A previous exception can be passed. In this case, the class is considered as being - * required totally, so if it doesn't exist, a reflection exception is always thrown. - * If it exists, the previous exception is rethrown. - * - * @throws \ReflectionException - * - * @internal - */ - public static function throwOnRequiredClass(string $class, ?\Exception $previous = null): void - { - // If the passed class is the resource being checked, we shouldn't throw. - if (null === $previous && self::$autoloadedClass === $class) { - return; - } - - if (class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false)) { - if (null !== $previous) { - throw $previous; - } - - return; - } - - if ($previous instanceof \ReflectionException) { - throw $previous; - } - - $message = sprintf('Class "%s" not found.', $class); - - if ($class !== (self::$autoloadedClass ?? $class)) { - $message = substr_replace($message, sprintf(' while loading "%s"', self::$autoloadedClass), -1, 0); - } - - if (null !== $previous) { - $message = $previous->getMessage(); - } - - $e = new \ReflectionException($message, 0, $previous); - - if (null !== $previous) { - throw $e; - } - - $trace = debug_backtrace(); - $autoloadFrame = [ - 'function' => 'spl_autoload_call', - 'args' => [$class], - ]; - - if (isset($trace[1])) { - $callerFrame = $trace[1]; - $i = 2; - } elseif (false !== $i = array_search($autoloadFrame, $trace, true)) { - $callerFrame = $trace[++$i]; - } else { - throw $e; - } - - if (isset($callerFrame['function']) && !isset($callerFrame['class'])) { - switch ($callerFrame['function']) { - case 'get_class_methods': - case 'get_class_vars': - case 'get_parent_class': - case 'is_a': - case 'is_subclass_of': - case 'class_exists': - case 'class_implements': - case 'class_parents': - case 'trait_exists': - case 'defined': - case 'interface_exists': - case 'method_exists': - case 'property_exists': - case 'is_callable': - return; - } - - $props = [ - 'file' => $callerFrame['file'] ?? null, - 'line' => $callerFrame['line'] ?? null, - 'trace' => \array_slice($trace, 1 + $i), - ]; - - foreach ($props as $p => $v) { - if (null !== $v) { - $r = new \ReflectionProperty(\Exception::class, $p); - $r->setValue($e, $v); - } - } - } - - throw $e; - } -} |