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<?php |
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/** |
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* This software package is licensed under AGPL, Commercial license. |
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* |
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* @package maslosoft/addendum |
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* @licence AGPL, Commercial |
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* @copyright Copyright (c) Piotr Masełkowski <[email protected]> (Meta container, further improvements, bugfixes) |
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* @copyright Copyright (c) Maslosoft (Meta container, further improvements, bugfixes) |
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* @copyright Copyright (c) Jan Suchal (Original version, builder, parser) |
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* @link https://maslosoft.com/addendum/ - maslosoft addendum |
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* @link https://code.google.com/p/addendum/ - original addendum project |
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*/ |
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namespace Maslosoft\Addendum\Utilities; |
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use function array_key_exists; |
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use function array_unique; |
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use Exception; |
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use function get_class; |
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use function get_parent_class; |
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use function is_object; |
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use ReflectionClass; |
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use function sort; |
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/** |
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* ClassChecker |
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* |
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* @author Piotr Maselkowski <pmaselkowski at gmail.com> |
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*/ |
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class ClassChecker |
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{ |
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/** |
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* Array with existent classes |
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* @var string[] |
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*/ |
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private static $_exists = []; |
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/** |
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* Partials cache |
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* @var array |
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*/ |
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private static $partials = []; |
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/** |
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* Check whenever class is anonymous. |
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* @param string|object $class |
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* @return bool True if class is anonymous |
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*/ |
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public static function isAnonymous($class) |
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{ |
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if(is_object($class)) |
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{ |
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$class = get_class($class); |
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} |
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return strpos($class, 'class@anonymous') !== false; |
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} |
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/** |
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* Check whenever class or trait or interface exists. |
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* It does autoload if needed. |
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* @param string $class |
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* @return bool True if class or trait or interface exists |
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*/ |
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public static function exists($class) |
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{ |
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if(is_object($class)) |
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{ |
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$class = get_class($class); |
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} |
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if (Blacklister::ignores($class)) |
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{ |
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return false; |
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} |
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if (self::isConfirmed($class)) |
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{ |
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return true; |
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} |
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try |
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{ |
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if (@class_exists($class)) |
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{ |
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return self::confirm($class); |
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} |
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} |
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catch (Exception $ex) |
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{ |
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// Some class loaders throw exception if class not found |
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} |
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try |
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{ |
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if (@trait_exists($class)) |
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{ |
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return self::confirm($class); |
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} |
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} |
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catch (Exception $ex) |
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{ |
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// Some class loaders throw exception if class not found |
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} |
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try |
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{ |
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if (@interface_exists($class)) |
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{ |
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return self::confirm($class); |
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} |
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} |
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catch (Exception $ex) |
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{ |
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// Some class loaders throw exception if class not found |
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} |
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Blacklister::ignore($class); |
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return false; |
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} |
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/** |
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* Get class/interface/trait names from which class is composed. |
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* |
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* @param string $className |
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* @return array |
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*/ |
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public static function getPartials($className) |
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{ |
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if (array_key_exists($className, self::$partials)) |
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{ |
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return self::$partials[$className]; |
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} |
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if(!ClassChecker::exists($className)) |
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{ |
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self::$partials[$className] = []; |
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return []; |
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} |
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$partials = []; |
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// Iterate over traits |
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foreach ((new ReflectionClass($className))->getTraitNames() as $trait) |
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{ |
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$partials[] = $trait; |
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foreach(self::getPartials($trait) as $traitPart) |
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{ |
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$partials[] = $traitPart; |
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} |
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} |
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// Iterate over interfaces to get partials |
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foreach ((new ReflectionClass($className))->getInterfaceNames() as $interface) |
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{ |
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$partials[] = $interface; |
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} |
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// Iterate over parent classes |
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do |
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{ |
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$partials[] = $className; |
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// Iterate over traits of parent class |
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foreach ((new ReflectionClass($className))->getTraitNames() as $trait) |
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{ |
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$partials[] = $trait; |
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} |
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// Iterate over interfaces of parent class |
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foreach ((new ReflectionClass($className))->getInterfaceNames() as $interface) |
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{ |
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$partials[] = $interface; |
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} |
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} |
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while (($className = get_parent_class($className)) !== false); |
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$partials = array_unique($partials); |
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sort($partials); |
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self::$partials[$className] = $partials; |
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return $partials; |
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} |
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private static function isConfirmed($class) |
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{ |
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return isset(self::$_exists[$class]); |
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} |
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private static function confirm($class) |
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{ |
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self::$_exists[$class] = true; |
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return true; |
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} |
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} |
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This check looks for accesses to local static members using the fully qualified name instead of
self::
.While this is perfectly valid, the fully qualified name of
Certificate::TRIPLEDES_CBC
could just as well be replaced byself::TRIPLEDES_CBC
. Referencing local members withself::
assured the access will still work when the class is renamed, makes it perfectly clear that the member is in fact local and will usually be shorter.