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vendor/symfony/http-kernel/DataCollector/DataCollector.php

@@ -0,0 +1,128 @@
+<?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\HttpKernel\DataCollector;
+
+use Symfony\Component\HttpKernel\DataCollector\Util\ValueExporter;
+use Symfony\Component\VarDumper\Caster\CutStub;
+use Symfony\Component\VarDumper\Cloner\ClonerInterface;
+use Symfony\Component\VarDumper\Cloner\Data;
+use Symfony\Component\VarDumper\Cloner\Stub;
+use Symfony\Component\VarDumper\Cloner\VarCloner;
+
+/**
+ * DataCollector.
+ *
+ * Children of this class must store the collected data in the data property.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Bernhard Schussek <bschussek@symfony.com>
+ */
+abstract class DataCollector implements DataCollectorInterface, \Serializable
+{
+    protected $data = array();
+
+    /**
+     * @var ValueExporter
+     */
+    private $valueExporter;
+
+    /**
+     * @var ClonerInterface
+     */
+    private $cloner;
+
+    public function serialize()
+    {
+        return serialize($this->data);
+    }
+
+    public function unserialize($data)
+    {
+        $this->data = unserialize($data);
+    }
+
+    /**
+     * Converts the variable into a serializable Data instance.
+     *
+     * This array can be displayed in the template using
+     * the VarDumper component.
+     *
+     * @param mixed $var
+     *
+     * @return Data
+     */
+    protected function cloneVar($var)
+    {
+        if ($var instanceof Data) {
+            return $var;
+        }
+        if (null === $this->cloner) {
+            if (class_exists(CutStub::class)) {
+                $this->cloner = new VarCloner();
+                $this->cloner->setMaxItems(-1);
+                $this->cloner->addCasters($this->getCasters());
+            } else {
+                @trigger_error(sprintf('Using the %s() method without the VarDumper component is deprecated since Symfony 3.2 and won\'t be supported in 4.0. Install symfony/var-dumper version 3.2 or above.', __METHOD__), E_USER_DEPRECATED);
+                $this->cloner = false;
+            }
+        }
+        if (false === $this->cloner) {
+            if (null === $this->valueExporter) {
+                $this->valueExporter = new ValueExporter();
+            }
+
+            return $this->valueExporter->exportValue($var);
+        }
+
+        return $this->cloner->cloneVar($var);
+    }
+
+    /**
+     * Converts a PHP variable to a string.
+     *
+     * @param mixed $var A PHP variable
+     *
+     * @return string The string representation of the variable
+     *
+     * @deprecated since version 3.2, to be removed in 4.0. Use cloneVar() instead.
+     */
+    protected function varToString($var)
+    {
+        @trigger_error(sprintf('The %s() method is deprecated since Symfony 3.2 and will be removed in 4.0. Use cloneVar() instead.', __METHOD__), E_USER_DEPRECATED);
+
+        if (null === $this->valueExporter) {
+            $this->valueExporter = new ValueExporter();
+        }
+
+        return $this->valueExporter->exportValue($var);
+    }
+
+    /**
+     * @return callable[] The casters to add to the cloner
+     */
+    protected function getCasters()
+    {
+        return array(
+            '*' => function ($v, array $a, Stub $s, $isNested) {
+                if (!$v instanceof Stub) {
+                    foreach ($a as $k => $v) {
+                        if (\is_object($v) && !$v instanceof \DateTimeInterface && !$v instanceof Stub) {
+                            $a[$k] = new CutStub($v);
+                        }
+                    }
+                }
+
+                return $a;
+            },
+        );
+    }
+}