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vendor/symfony/validator/ConstraintValidator.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 Symfony\Component\Validator\Context\ExecutionContextInterface;
+
+/**
+ * Base class for constraint validators.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+abstract class ConstraintValidator implements ConstraintValidatorInterface
+{
+    /**
+     * Whether to format {@link \DateTime} objects, either with the {@link \IntlDateFormatter}
+     * (if it is available) or as RFC-3339 dates ("Y-m-d H:i:s").
+     */
+    public const PRETTY_DATE = 1;
+
+    /**
+     * Whether to cast objects with a "__toString()" method to strings.
+     */
+    public const OBJECT_TO_STRING = 2;
+
+    /**
+     * @var ExecutionContextInterface
+     */
+    protected $context;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function initialize(ExecutionContextInterface $context)
+    {
+        $this->context = $context;
+    }
+
+    /**
+     * Returns a string representation of the type of the value.
+     *
+     * This method should be used if you pass the type of a value as
+     * message parameter to a constraint violation. Note that such
+     * parameters should usually not be included in messages aimed at
+     * non-technical people.
+     *
+     * @param mixed $value The value to return the type of
+     *
+     * @return string
+     */
+    protected function formatTypeOf($value)
+    {
+        return get_debug_type($value);
+    }
+
+    /**
+     * Returns a string representation of the value.
+     *
+     * This method returns the equivalent PHP tokens for most scalar types
+     * (i.e. "false" for false, "1" for 1 etc.). Strings are always wrapped
+     * in double quotes ("). Objects, arrays and resources are formatted as
+     * "object", "array" and "resource". If the $format bitmask contains
+     * the PRETTY_DATE bit, then {@link \DateTime} objects will be formatted
+     * with the {@link \IntlDateFormatter}. If it is not available, they will be
+     * formatted as RFC-3339 dates ("Y-m-d H:i:s").
+     *
+     * Be careful when passing message parameters to a constraint violation
+     * that (may) contain objects, arrays or resources. These parameters
+     * should only be displayed for technical users. Non-technical users
+     * won't know what an "object", "array" or "resource" is and will be
+     * confused by the violation message.
+     *
+     * @param mixed $value  The value to format as string
+     * @param int   $format A bitwise combination of the format
+     *                      constants in this class
+     *
+     * @return string
+     */
+    protected function formatValue($value, int $format = 0)
+    {
+        if (($format & self::PRETTY_DATE) && $value instanceof \DateTimeInterface) {
+            if (class_exists(\IntlDateFormatter::class)) {
+                $formatter = new \IntlDateFormatter(\Locale::getDefault(), \IntlDateFormatter::MEDIUM, \IntlDateFormatter::SHORT, 'UTC');
+
+                return $formatter->format(new \DateTime(
+                    $value->format('Y-m-d H:i:s.u'),
+                    new \DateTimeZone('UTC')
+                ));
+            }
+
+            return $value->format('Y-m-d H:i:s');
+        }
+
+        if (\is_object($value)) {
+            if (($format & self::OBJECT_TO_STRING) && method_exists($value, '__toString')) {
+                return $value->__toString();
+            }
+
+            return 'object';
+        }
+
+        if (\is_array($value)) {
+            return 'array';
+        }
+
+        if (\is_string($value)) {
+            return '"'.$value.'"';
+        }
+
+        if (\is_resource($value)) {
+            return 'resource';
+        }
+
+        if (null === $value) {
+            return 'null';
+        }
+
+        if (false === $value) {
+            return 'false';
+        }
+
+        if (true === $value) {
+            return 'true';
+        }
+
+        return (string) $value;
+    }
+
+    /**
+     * Returns a string representation of a list of values.
+     *
+     * Each of the values is converted to a string using
+     * {@link formatValue()}. The values are then concatenated with commas.
+     *
+     * @param array $values A list of values
+     * @param int   $format A bitwise combination of the format
+     *                      constants in this class
+     *
+     * @return string
+     *
+     * @see formatValue()
+     */
+    protected function formatValues(array $values, int $format = 0)
+    {
+        foreach ($values as $key => $value) {
+            $values[$key] = $this->formatValue($value, $format);
+        }
+
+        return implode(', ', $values);
+    }
+}