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diff --git a/vendor/symfony/expression-language/Node/ConstantNode.php b/vendor/symfony/expression-language/Node/ConstantNode.php
new file mode 100644
index 000000000..9369d859f
--- /dev/null
+++ b/vendor/symfony/expression-language/Node/ConstantNode.php
@@ -0,0 +1,40 @@
+<?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\ExpressionLanguage\Node;
+
+use Symfony\Component\ExpressionLanguage\Compiler;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class ConstantNode extends Node
+{
+    public function __construct($value)
+    {
+        parent::__construct(
+            array(),
+            array('value' => $value)
+        );
+    }
+
+    public function compile(Compiler $compiler)
+    {
+        $compiler->repr($this->attributes['value']);
+    }
+
+    public function evaluate($functions, $values)
+    {
+        return $this->attributes['value'];
+    }
+}