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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 Maslosoft\Addendum\Annotations\TargetAnnotation; |
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use Maslosoft\Addendum\Exceptions\TargetException; |
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use Maslosoft\Addendum\Interfaces\AnnotationInterface; |
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use Maslosoft\Addendum\Reflection\ReflectionAnnotatedClass; |
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use ReflectionClass; |
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use ReflectionMethod; |
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use ReflectionProperty; |
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/** |
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* Check target constraints |
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* |
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* @author Piotr Maselkowski <pmaselkowski at gmail.com> |
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*/ |
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class TargetChecker |
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{ |
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/** |
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* Check target constraints |
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* @param AnnotationInterface $annotation Annotation |
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* @param ReflectionClass|ReflectionMethod|ReflectionProperty|bool $target |
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* @throws TargetException |
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*/ |
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public static function check($annotation, $target) |
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{ |
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$reflection = new ReflectionAnnotatedClass($annotation); |
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if (!$reflection->hasAnnotation('Target')) |
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{ |
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return; |
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} |
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$value = $reflection->getAnnotation('Target')->value; |
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$values = is_array($value) ? $value : [$value]; |
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foreach ($values as $value) |
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{ |
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if ($value == TargetAnnotation::TargetClass && $target instanceof ReflectionClass) |
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{ |
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return; |
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} |
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if ($value == TargetAnnotation::TargetMethod && $target instanceof ReflectionMethod) |
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{ |
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return; |
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} |
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if ($value == TargetAnnotation::TargetProperty && $target instanceof ReflectionProperty) |
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{ |
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return; |
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} |
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if ($value == TargetAnnotation::TargetNested && $target === false) |
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{ |
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return; |
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} |
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} |
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if ($target !== false && $value && !in_array($value, [ |
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TargetAnnotation::TargetClass, |
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TargetAnnotation::TargetMethod, |
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TargetAnnotation::TargetProperty, |
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TargetAnnotation::TargetNested |
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])) |
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{ |
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if ($target instanceof ReflectionClass) |
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{ |
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$interfaceTarget = $target; |
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} |
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else |
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{ |
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/* @var $target ReflectionProperty */ |
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$interfaceTarget = new ReflectionClass($target->class); |
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} |
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if(!ClassChecker::exists($value)) |
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{ |
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throw new TargetException(sprintf('Annotation "%s" used in "%s" is only allowed on instances of "%s", but this class does not exists (see @Target)', basename($reflection->name), $interfaceTarget->name, $value)); |
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} |
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if (!$interfaceTarget->implementsInterface($value)) |
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{ |
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throw new TargetException(sprintf('Annotation "%s" used in "%s" is only allowed on instances of "%s" (see @Target)', basename($reflection->name), $interfaceTarget->name, $value)); |
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} |
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} |
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if ($target === false && $value == TargetAnnotation::TargetNested) |
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{ |
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throw new TargetException("Annotation '" . get_class($annotation) . "' nesting not allowed"); |
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} |
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elseif (in_array($value, TargetAnnotation::getTargets())) |
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{ |
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throw new TargetException(sprintf("Annotation '%s' not allowed on %s, it's target is %s (see @Target)", get_class($annotation), ReflectionName::createName($target), $value)); |
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} |
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} |
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} |
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Maslosoft /
Addendum
