Lua 5.2.4 + LuaBridge minimal example

luabridge_example.cpp

// Siv3D : http://play-siv3d.hateblo.jp/
#include <Siv3D.hpp>

// Lua : https://www.lua.org/
#include <lua.hpp>
#pragma comment(lib, "lua52.lib")

// LuaBridge : https://github.com/vinniefalco/LuaBridge
#include <LuaBridge.h>
using namespace luabridge;

class A
{
public:
	A(const int val) : val_(val)
	{
	}

	int f()
	{
		Println(L"f() : val=", val_);
		return 123 + val_;
	}

private:
	int val_;
};

void Main()
{
	// Initialize Lua

	lua_State* L = luaL_newstate();
	luaL_openlibs(L);

	luaL_dostring(L,
		"function luafunc(e)\n"
		"  return e:f()\n"
		"end\n"
	);

	// Register C++ classes using LuaBridge

	getGlobalNamespace(L)
		.beginNamespace("foo")
		.beginClass<A>("A")
		.addFunction("f", &A::f)
		.endClass()
		.endNamespace();

	// Call Lua function

	LuaRef luafunc = getGlobal(L, "luafunc");

	A a(90000);

	int ret = luafunc(&a);

	Println(ret);

	WaitKey();
}