/* * This file is part of LuaInterface. * * Copyright (C) 2003-2005 Fabio Mascarenhas de Queiroz. * Copyright (C) 2012 Megax * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ using System; namespace LuaInterface.Method { /* * Static helper methods for Lua tables acting as CLR objects. * * Author: Fabio Mascarenhas * Version: 1.0 */ public class LuaClassHelper { /* * Gets the function called name from the provided table, * returning null if it does not exist */ public static LuaFunction getTableFunction (LuaTable luaTable, string name) { object funcObj = luaTable.rawget (name); if (funcObj is LuaFunction) return (LuaFunction)funcObj; else return null; } /* * Calls the provided function with the provided parameters */ public static object callFunction (LuaFunction function, object[] args, Type[] returnTypes, object[] inArgs, int[] outArgs) { // args is the return array of arguments, inArgs is the actual array // of arguments passed to the function (with in parameters only), outArgs // has the positions of out parameters object returnValue; int iRefArgs; object[] returnValues = function.call (inArgs, returnTypes); if (returnTypes [0] == typeof(void)) { returnValue = null; iRefArgs = 0; } else { returnValue = returnValues [0]; iRefArgs = 1; } for (int i = 0; i < outArgs.Length; i++) { args [outArgs [i]] = returnValues [iRefArgs]; iRefArgs++; } return returnValue; } } }