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web/vendor/symfony/validator/Mapping/Factory/BlackHoleMetadataFactory.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\Factory;
+
+/**
+ * Metadata factory that does not store metadata.
+ *
+ * This implementation is useful if you want to validate values against
+ * constraints only and you don't need to add constraints to classes and
+ * properties.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class BlackHoleMetadataFactory implements MetadataFactoryInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getMetadataFor($value)
+    {
+        throw new \LogicException('This class does not support metadata.');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasMetadataFor($value)
+    {
+        return false;
+    }
+}

web/vendor/symfony/validator/Mapping/Factory/LazyLoadingMetadataFactory.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\Factory;
+
+use Symfony\Component\Validator\Exception\NoSuchMetadataException;
+use Symfony\Component\Validator\Mapping\Cache\CacheInterface;
+use Symfony\Component\Validator\Mapping\ClassMetadata;
+use Symfony\Component\Validator\Mapping\ClassMetadataInterface;
+use Symfony\Component\Validator\Mapping\Loader\LoaderChain;
+use Symfony\Component\Validator\Mapping\Loader\LoaderInterface;
+
+/**
+ * Creates new {@link ClassMetadataInterface} instances.
+ *
+ * Whenever {@link getMetadataFor()} is called for the first time with a given
+ * class name or object of that class, a new metadata instance is created and
+ * returned. On subsequent requests for the same class, the same metadata
+ * instance will be returned.
+ *
+ * You can optionally pass a {@link LoaderInterface} instance to the constructor.
+ * Whenever a new metadata instance is created, it is passed to the loader,
+ * which can configure the metadata based on configuration loaded from the
+ * filesystem or a database. If you want to use multiple loaders, wrap them in a
+ * {@link LoaderChain}.
+ *
+ * You can also optionally pass a {@link CacheInterface} instance to the
+ * constructor. This cache will be used for persisting the generated metadata
+ * between multiple PHP requests.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class LazyLoadingMetadataFactory implements MetadataFactoryInterface
+{
+    /**
+     * The loader for loading the class metadata.
+     *
+     * @var LoaderInterface|null
+     */
+    protected $loader;
+
+    /**
+     * The cache for caching class metadata.
+     *
+     * @var CacheInterface|null
+     */
+    protected $cache;
+
+    /**
+     * The loaded metadata, indexed by class name.
+     *
+     * @var ClassMetadata[]
+     */
+    protected $loadedClasses = array();
+
+    /**
+     * Creates a new metadata factory.
+     *
+     * @param LoaderInterface|null $loader The loader for configuring new metadata
+     * @param CacheInterface|null  $cache  The cache for persisting metadata
+     *                                     between multiple PHP requests
+     */
+    public function __construct(LoaderInterface $loader = null, CacheInterface $cache = null)
+    {
+        $this->loader = $loader;
+        $this->cache = $cache;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * If the method was called with the same class name (or an object of that
+     * class) before, the same metadata instance is returned.
+     *
+     * If the factory was configured with a cache, this method will first look
+     * for an existing metadata instance in the cache. If an existing instance
+     * is found, it will be returned without further ado.
+     *
+     * Otherwise, a new metadata instance is created. If the factory was
+     * configured with a loader, the metadata is passed to the
+     * {@link LoaderInterface::loadClassMetadata()} method for further
+     * configuration. At last, the new object is returned.
+     */
+    public function getMetadataFor($value)
+    {
+        if (!is_object($value) && !is_string($value)) {
+            throw new NoSuchMetadataException(sprintf('Cannot create metadata for non-objects. Got: %s', gettype($value)));
+        }
+
+        $class = ltrim(is_object($value) ? get_class($value) : $value, '\\');
+
+        if (isset($this->loadedClasses[$class])) {
+            return $this->loadedClasses[$class];
+        }
+
+        if (null !== $this->cache && false !== ($metadata = $this->cache->read($class))) {
+            // Include constraints from the parent class
+            $this->mergeConstraints($metadata);
+
+            return $this->loadedClasses[$class] = $metadata;
+        }
+
+        if (!class_exists($class) && !interface_exists($class)) {
+            throw new NoSuchMetadataException(sprintf('The class or interface "%s" does not exist.', $class));
+        }
+
+        $metadata = new ClassMetadata($class);
+
+        if (null !== $this->loader) {
+            $this->loader->loadClassMetadata($metadata);
+        }
+
+        if (null !== $this->cache) {
+            $this->cache->write($metadata);
+        }
+
+        // Include constraints from the parent class
+        $this->mergeConstraints($metadata);
+
+        return $this->loadedClasses[$class] = $metadata;
+    }
+
+    private function mergeConstraints(ClassMetadata $metadata)
+    {
+        // Include constraints from the parent class
+        if ($parent = $metadata->getReflectionClass()->getParentClass()) {
+            $metadata->mergeConstraints($this->getMetadataFor($parent->name));
+        }
+
+        $interfaces = $metadata->getReflectionClass()->getInterfaces();
+
+        $interfaces = array_filter($interfaces, function ($interface) use ($parent, $interfaces) {
+            $interfaceName = $interface->getName();
+
+            if ($parent && $parent->implementsInterface($interfaceName)) {
+                return false;
+            }
+
+            foreach ($interfaces as $i) {
+                if ($i !== $interface && $i->implementsInterface($interfaceName)) {
+                    return false;
+                }
+            }
+
+            return true;
+        });
+
+        // Include constraints from all directly implemented interfaces
+        foreach ($interfaces as $interface) {
+            if ('Symfony\Component\Validator\GroupSequenceProviderInterface' === $interface->name) {
+                continue;
+            }
+            $metadata->mergeConstraints($this->getMetadataFor($interface->name));
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasMetadataFor($value)
+    {
+        if (!is_object($value) && !is_string($value)) {
+            return false;
+        }
+
+        $class = ltrim(is_object($value) ? get_class($value) : $value, '\\');
+
+        if (class_exists($class) || interface_exists($class)) {
+            return true;
+        }
+
+        return false;
+    }
+}

web/vendor/symfony/validator/Mapping/Factory/MetadataFactoryInterface.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\Factory;
+
+use Symfony\Component\Validator\MetadataFactoryInterface as LegacyMetadataFactoryInterface;
+
+/**
+ * Returns {@link \Symfony\Component\Validator\Mapping\MetadataInterface} instances for values.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+interface MetadataFactoryInterface extends LegacyMetadataFactoryInterface
+{
+}