From 9681d41bf0b56257ea1642844d6d2fbdfe11a8ec Mon Sep 17 00:00:00 2001
From: Andrew Kaster <andrewdkaster@gmail.com>
Date: Thu, 9 Jan 2020 00:35:32 -0700
Subject: [PATCH] AK: Add ArmedScopeGuard, a scope guard that can be disarmed

---
 AK/ScopeGuard.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/AK/ScopeGuard.h b/AK/ScopeGuard.h
index 9946796663..6cacfd29d6 100644
--- a/AK/ScopeGuard.h
+++ b/AK/ScopeGuard.h
@@ -21,6 +21,28 @@ private:
     Callback m_callback;
 };
 
+template<typename Callback>
+class ArmedScopeGuard {
+public:
+    ArmedScopeGuard(Callback callback)
+        : m_callback(move(callback))
+    {
+    }
+
+    ~ArmedScopeGuard()
+    {
+        if (m_armed)
+            m_callback();
+    }
+
+    void disarm() { m_armed = false; }
+
+private:
+    Callback m_callback;
+    bool m_armed { true };
+};
+
 }
 
 using AK::ScopeGuard;
+using AK::ArmedScopeGuard;