1 files changed, 37 insertions, 0 deletions
diff --git a/deps/sol2/examples/source/tutorials/object_lifetime.cpp b/deps/sol2/examples/source/tutorials/object_lifetime.cpp
new file mode 100644
index 0000000..3ed3f41
--- /dev/null
+++ b/deps/sol2/examples/source/tutorials/object_lifetime.cpp
@@ -0,0 +1,37 @@
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+#include <string>
+#include <iostream>
+
+int main () {
+	sol::state lua;
+	lua.open_libraries(sol::lib::base);
+
+	lua.script(R"(
+	obj = "please don't let me die";
+	)");
+
+	sol::object keep_alive = lua["obj"];
+	lua.script(R"(
+	obj = nil;
+	function say(msg)
+		print(msg)
+	end
+	)");
+
+	lua.collect_garbage();
+
+	lua["say"](lua["obj"]);
+	// still accessible here and still alive in Lua
+	// even though the name was cleared
+	std::string message = keep_alive.as<std::string>();
+	std::cout << message << std::endl;
+
+	// Can be pushed back into Lua as an argument
+	// or set to a new name,
+	// whatever you like!
+	lua["say"](keep_alive);
+
+	return 0;
+}