Lua_Ref Func Access violation

[yatoiv]

Ok so I'm a student and trying to make a basic game that can be custom coded using lua and I'm using luabridge
and i have a custom class that allows the user to render his custom objects

std::vector<luabridge::LuaRef> RenderHooks = std::vector<luabridge::LuaRef>();

class RenderManager {
public:
	void OnRender(luabridge::LuaRef Func) {
		printf("Added a hook\n");
		RenderHooks.push_back(Func);
		printf("Hooks Count: %i\n", RenderHooks.size());
	}
	bool ClearHooks() {
		RenderHooks.clear();
		return true;
	}
	
	void CallHooks() {
		printf("Hooks Count: %i\n", RenderHooks.size());
		for (luabridge::LuaRef hook : RenderHooks) {
			try {
				// call hook
				printf("Calling a hook\n");
				hook();
			}
			catch (luabridge::LuaException const& e) {
				std::cout << e.what() << std::endl;
			}

		}
	}
};

and i use

		.beginClass<RenderManager>("RenderManagerClass")
		.addFunction("OnRender", &RenderManager::OnRender)
		.addFunction("ClearHooks", &RenderManager::ClearHooks)
                .endClass()
		.addVariable("RenderManager", &renderMng, false)
		.endNamespace();

to register it

so i can use

render = function()
    print("a message from lua")
end

Game.RenderManager:OnRender(render)

while true do 
   -- Some game calculations happen here and it can run forever
end

but the issue is when i try to run renderMng.CallHooks() which is supposed to trigger the lua function defined earlier i get the following issue

LuaException: missing error

and access violation some times and the lua function never gets triggered and after a few more calls the app exits when debugging i get

Exception thrown at 0x00007FFDC54EFFA6 (msvcrt.dll) in gamebase.exe: 0xC0000005: Access violation reading location 0x0000000065BCF000.
another run
Exception thrown at 0x00007FFDC552D2D0 (msvcrt.dll) in gamebase.exe: 0xC0000005: Access violation reading location 0xFFFFFFFFFFFFFFFF.
My console before it exits

0.157??

which seems to be triggered here

I tried calling the function using luabridge::getGlobal(L, "funcname"); and same issue

it seems to be working as expected if i remove my while true loop that I have, but there are some important calculations that are being ran on it so I cannot remove it

Its my first time using luabridge and i don't know what am i wrong at

I'm using luabridge2 from vcpkg
and Lua 5.4.4

[kunitoki]

Not sure what are you doing wrong, but it works fine for me (filling the voids you left from the repro case you posted here)