Method CreateDelegateBridge

Assets/XLua/Src/ObjectTranslator.cs:462–531

(RealStatePtr L, Type delegateType, int idx)

        }
        Dictionary<int, WeakReference> delegate_bridges = new Dictionary<int, WeakReference>();
        public object CreateDelegateBridge(RealStatePtr L, Type delegateType, int idx)
        {
            LuaAPI.lua_pushvalue(L, idx);
            LuaAPI.lua_rawget(L, LuaIndexes.LUA_REGISTRYINDEX);
            if (!LuaAPI.lua_isnil(L, -1))
            {
                int referenced = LuaAPI.xlua_tointeger(L, -1);
                LuaAPI.lua_pop(L, 1);

                if (delegate_bridges[referenced].IsAlive)
                {
                    if (delegateType == null)
                    {
                        return delegate_bridges[referenced].Target;
                    }
                    DelegateBridgeBase exist_bridge = delegate_bridges[referenced].Target as DelegateBridgeBase;
                    Delegate exist_delegate;
                    if (exist_bridge.TryGetDelegate(delegateType, out exist_delegate))
                    {
                        return exist_delegate;
                    }
                    else
                    {
                        exist_delegate = getDelegate(exist_bridge, delegateType);
                        exist_bridge.AddDelegate(delegateType, exist_delegate);
                        return exist_delegate;
                    }
                }
            }
            else
            {
                LuaAPI.lua_pop(L, 1);
            }

            LuaAPI.lua_pushvalue(L, idx);
            int reference = LuaAPI.luaL_ref(L);
            LuaAPI.lua_pushvalue(L, idx);
            LuaAPI.lua_pushnumber(L, reference);
            LuaAPI.lua_rawset(L, LuaIndexes.LUA_REGISTRYINDEX);
            DelegateBridgeBase bridge;
            try
            {
                bridge = Activator.CreateInstance(delegate_birdge_type, new object[] { reference, luaEnv }) as DelegateBridgeBase;
            }
            catch(Exception e)
            {
                LuaAPI.lua_pushvalue(L, idx);
                LuaAPI.lua_pushnil(L);
                LuaAPI.lua_rawset(L, LuaIndexes.LUA_REGISTRYINDEX);
                LuaAPI.lua_pushnil(L);
                LuaAPI.xlua_rawseti(L, LuaIndexes.LUA_REGISTRYINDEX, reference);
                throw e;
            }
            if (delegateType == null)
            {
                delegate_bridges[reference] = new WeakReference(bridge);
                return bridge;
            }