Forget what I said, I just need to change git attributes to mark for vendor

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/sol2/examples/source/docs/state_transfer.cpp b/lib/sol2/examples/source/docs/state_transfer.cpp
new file mode 100644
index 0000000..1728810
--- /dev/null
+++ b/lib/sol2/examples/source/docs/state_transfer.cpp
@@ -0,0 +1,48 @@
+#define SOL_ALL_SAFETIES_ON 1
+
+#include <sol/sol.hpp>
+
+#include <assert.hpp>
+#include <iostream>
+
+int main (int, char*[]) {
+
+	sol::state lua;
+	lua.open_libraries();
+	sol::function transferred_into;
+	lua["f"] = [&lua, &transferred_into](sol::object t, sol::this_state this_L) {
+		std::cout << "state of main     : "  << (void*)lua.lua_state() << std::endl;
+		std::cout << "state of function : "  << (void*)this_L.lua_state() << std::endl;
+		// pass original lua_State* (or sol::state/sol::state_view)
+		// transfers ownership from the state of "t",
+		// to the "lua" sol::state
+		transferred_into = sol::function(lua, t);
+	};
+
+	lua.script(R"(
+	i = 0
+	function test()
+	co = coroutine.create(
+		function()
+			local g = function() i = i + 1 end
+			f(g)
+			g = nil
+			collectgarbage()
+		end
+	)
+	coroutine.resume(co)
+	co = nil
+	collectgarbage()
+	end
+	)");
+
+	// give it a try
+	lua.safe_script("test()");
+	// should call 'g' from main thread, increment i by 1
+	transferred_into();
+	// check
+	int i = lua["i"];
+	c_assert(i == 1);
+
+	return 0;
+}