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[yaffs-website] / vendor / symfony / validator / ContainerConstraintValidatorFactory.php

diff --git a/vendor/symfony/validator/ContainerConstraintValidatorFactory.php b/vendor/symfony/validator/ContainerConstraintValidatorFactory.php
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+++ b/vendor/symfony/validator/ContainerConstraintValidatorFactory.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;
+
+use Psr\Container\ContainerInterface;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+use Symfony\Component\Validator\Exception\ValidatorException;
+
+/**
+ * Uses a service container to create constraint validators.
+ *
+ * @author Kris Wallsmith <kris@symfony.com>
+ */
+class ContainerConstraintValidatorFactory implements ConstraintValidatorFactoryInterface
+{
+    private $container;
+    private $validators;
+
+    public function __construct(ContainerInterface $container)
+    {
+        $this->container = $container;
+        $this->validators = array();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws ValidatorException      When the validator class does not exist
+     * @throws UnexpectedTypeException When the validator is not an instance of ConstraintValidatorInterface
+     */
+    public function getInstance(Constraint $constraint)
+    {
+        $name = $constraint->validatedBy();
+
+        if (!isset($this->validators[$name])) {
+            if ($this->container->has($name)) {
+                $this->validators[$name] = $this->container->get($name);
+            } else {
+                if (!class_exists($name)) {
+                    throw new ValidatorException(sprintf('Constraint validator "%s" does not exist or it is not enabled. Check the "validatedBy" method in your constraint class "%s".', $name, get_class($constraint)));
+                }
+
+                $this->validators[$name] = new $name();
+            }
+        }
+
+        if (!$this->validators[$name] instanceof ConstraintValidatorInterface) {
+            throw new UnexpectedTypeException($this->validators[$name], ConstraintValidatorInterface::class);
+        }
+
+        return $this->validators[$name];
+    }
+}