From 781f216676ad341607ffc99fa8f816cd207eb90a Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Wed, 6 Feb 2019 16:01:59 +0100
Subject: [PATCH] AK: Add a TemporaryChange helper class.

---
 AK/TemporaryChange.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 AK/TemporaryChange.h

diff --git a/AK/TemporaryChange.h b/AK/TemporaryChange.h
new file mode 100644
index 00000000000000..274672a490c391
--- /dev/null
+++ b/AK/TemporaryChange.h
@@ -0,0 +1,18 @@
+#pragma once
+
+namespace AK {
+
+template<typename T>
+class TemporaryChange {
+public:
+    TemporaryChange(T& variable, T value) : m_variable(variable), m_old_value(variable) { m_variable = value; }
+    ~TemporaryChange() { m_variable = m_old_value; }
+
+private:
+    T& m_variable;
+    T m_old_value;
+};
+
+}
+
+using AK::TemporaryChange;