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vendor/symfony/validator/Mapping/Loader/AnnotationLoader.php

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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\Validator\Mapping\Loader;
+
+use Doctrine\Common\Annotations\Reader;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\Constraints\Callback;
+use Symfony\Component\Validator\Constraints\GroupSequence;
+use Symfony\Component\Validator\Constraints\GroupSequenceProvider;
+use Symfony\Component\Validator\Exception\MappingException;
+use Symfony\Component\Validator\Mapping\ClassMetadata;
+
+/**
+ * Loads validation metadata using a Doctrine annotation {@link Reader} or using PHP 8 attributes.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+class AnnotationLoader implements LoaderInterface
+{
+    protected $reader;
+
+    public function __construct(Reader $reader = null)
+    {
+        $this->reader = $reader;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function loadClassMetadata(ClassMetadata $metadata)
+    {
+        $reflClass = $metadata->getReflectionClass();
+        $className = $reflClass->name;
+        $success = false;
+
+        foreach ($this->getAnnotations($reflClass) as $constraint) {
+            if ($constraint instanceof GroupSequence) {
+                $metadata->setGroupSequence($constraint->groups);
+            } elseif ($constraint instanceof GroupSequenceProvider) {
+                $metadata->setGroupSequenceProvider(true);
+            } elseif ($constraint instanceof Constraint) {
+                $metadata->addConstraint($constraint);
+            }
+
+            $success = true;
+        }
+
+        foreach ($reflClass->getProperties() as $property) {
+            if ($property->getDeclaringClass()->name === $className) {
+                foreach ($this->getAnnotations($property) as $constraint) {
+                    if ($constraint instanceof Constraint) {
+                        $metadata->addPropertyConstraint($property->name, $constraint);
+                    }
+
+                    $success = true;
+                }
+            }
+        }
+
+        foreach ($reflClass->getMethods() as $method) {
+            if ($method->getDeclaringClass()->name === $className) {
+                foreach ($this->getAnnotations($method) as $constraint) {
+                    if ($constraint instanceof Callback) {
+                        $constraint->callback = $method->getName();
+
+                        $metadata->addConstraint($constraint);
+                    } elseif ($constraint instanceof Constraint) {
+                        if (preg_match('/^(get|is|has)(.+)$/i', $method->name, $matches)) {
+                            $metadata->addGetterMethodConstraint(lcfirst($matches[2]), $matches[0], $constraint);
+                        } else {
+                            throw new MappingException(sprintf('The constraint on "%s::%s()" cannot be added. Constraints can only be added on methods beginning with "get", "is" or "has".', $className, $method->name));
+                        }
+                    }
+
+                    $success = true;
+                }
+            }
+        }
+
+        return $success;
+    }
+
+    /**
+     * @param \ReflectionClass|\ReflectionMethod|\ReflectionProperty $reflection
+     */
+    private function getAnnotations(object $reflection): iterable
+    {
+        if (\PHP_VERSION_ID >= 80000) {
+            foreach ($reflection->getAttributes(GroupSequence::class) as $attribute) {
+                yield $attribute->newInstance();
+            }
+            foreach ($reflection->getAttributes(GroupSequenceProvider::class) as $attribute) {
+                yield $attribute->newInstance();
+            }
+            foreach ($reflection->getAttributes(Constraint::class, \ReflectionAttribute::IS_INSTANCEOF) as $attribute) {
+                yield $attribute->newInstance();
+            }
+        }
+        if (!$this->reader) {
+            return;
+        }
+
+        if ($reflection instanceof \ReflectionClass) {
+            yield from $this->reader->getClassAnnotations($reflection);
+        }
+        if ($reflection instanceof \ReflectionMethod) {
+            yield from $this->reader->getMethodAnnotations($reflection);
+        }
+        if ($reflection instanceof \ReflectionProperty) {
+            yield from $this->reader->getPropertyAnnotations($reflection);
+        }
+    }
+}