Move Operators to ExpressionParsers, deprecate ExpressionParser

src/ExpressionParser/ExpressionParserType.php

@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Twig\ExpressionParser;
+
+/**
+ * @internal
+ */
+enum ExpressionParserType: string
+{
+    case Prefix = 'prefix';
+    case Infix = 'infix';
+
+    static public function getType(object $object): ExpressionParserType
+    {
+        if ($object instanceof PrefixExpressionParserInterface) {
+            return self::Prefix;
+        }
+        if ($object instanceof InfixExpressionParserInterface) {
+            return self::Infix;
+        }
+
+        throw new \InvalidArgumentException(\sprintf('Unsupported expression parser type: %s', \get_class($object)));
+    }
+}