--- /dev/null
+<?php declare(strict_types=1);
+
+namespace PhpParser\Internal;
+
+/**
+ * @internal
+ */
+class DiffElem
+{
+ const TYPE_KEEP = 0;
+ const TYPE_REMOVE = 1;
+ const TYPE_ADD = 2;
+ const TYPE_REPLACE = 3;
+
+ /** @var int One of the TYPE_* constants */
+ public $type;
+ /** @var mixed Is null for add operations */
+ public $old;
+ /** @var mixed Is null for remove operations */
+ public $new;
+
+ public function __construct(int $type, $old, $new) {
+ $this->type = $type;
+ $this->old = $old;
+ $this->new = $new;
+ }
+}