utils: add ScopeGuard

include/hyprutils/utils/ScopeGuard.hpp

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <functional>
+
+namespace Hyprutils {
+    namespace Utils {
+        // calls a function when it goes out of scope
+        class CScopeGuard {
+          public:
+            CScopeGuard(const std::function<void()>& fn_);
+            ~CScopeGuard();
+
+          private:
+            std::function<void()> fn;
+        };
+    };
+};

src/utils/ScopeGuard.cpp

@@ -0,0 +1,12 @@
+#include <hyprutils/utils/ScopeGuard.hpp>
+
+using namespace Hyprutils::Utils;
+
+Hyprutils::Utils::CScopeGuard::CScopeGuard(const std::function<void()>& fn_) : fn(fn_) {
+    ;
+}
+
+Hyprutils::Utils::CScopeGuard::~CScopeGuard() {
+    if (fn)
+        fn();
+}