457 lines
21 KiB
C#
457 lines
21 KiB
C#
namespace LuaInterface
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{
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using System;
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using System.Runtime.InteropServices;
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using System.Reflection;
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using System.Collections;
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using System.Text;
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using System.Security;
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/*
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* Lua types for the API, returned by lua_type function
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*/
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public enum LuaTypes
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{
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LUA_TNONE=-1,
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LUA_TNIL=0,
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LUA_TNUMBER=3,
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LUA_TSTRING=4,
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LUA_TBOOLEAN=1,
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LUA_TTABLE=5,
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LUA_TFUNCTION=6,
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LUA_TUSERDATA=7,
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LUA_TLIGHTUSERDATA=2
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}
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// steffenj: BEGIN lua garbage collector options
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/*
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* Lua Garbage Collector options (param "what")
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*/
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public enum LuaGCOptions
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{
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LUA_GCSTOP = 0,
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LUA_GCRESTART = 1,
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LUA_GCCOLLECT = 2,
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LUA_GCCOUNT = 3,
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LUA_GCCOUNTB = 4,
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LUA_GCSTEP = 5,
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LUA_GCSETPAUSE = 6,
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LUA_GCSETSTEPMUL = 7,
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}
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/*
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sealed class LuaGCOptions
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{
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public static int LUA_GCSTOP = 0;
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public static int LUA_GCRESTART = 1;
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public static int LUA_GCCOLLECT = 2;
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public static int LUA_GCCOUNT = 3;
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public static int LUA_GCCOUNTB = 4;
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public static int LUA_GCSTEP = 5;
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public static int LUA_GCSETPAUSE = 6;
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public static int LUA_GCSETSTEPMUL = 7;
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};
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*/
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// steffenj: END lua garbage collector options
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/*
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* Special stack indexes
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*/
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sealed class LuaIndexes
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{
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public static int LUA_REGISTRYINDEX=-10000;
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public static int LUA_ENVIRONINDEX=-10001; // steffenj: added environindex
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public static int LUA_GLOBALSINDEX=-10002; // steffenj: globalsindex previously was -10001
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}
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/*
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* Structure used by the chunk reader
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*/
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[ StructLayout( LayoutKind.Sequential )]
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public struct ReaderInfo
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{
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public String chunkData;
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public bool finished;
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}
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/*
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* Delegate for functions passed to Lua as function pointers
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*/
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public delegate int LuaCSFunction(IntPtr luaState);
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/*
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* Delegate for chunk readers used with lua_load
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*/
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public delegate string LuaChunkReader(IntPtr luaState,ref ReaderInfo data,ref uint size);
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/// <summary>
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/// Used to handle Lua panics
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/// </summary>
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/// <param name="luaState"></param>
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/// <returns></returns>
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public delegate int LuaFunctionCallback(IntPtr luaState);
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/*
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* P/Invoke wrapper of the Lua API
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*
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* Author: Fabio Mascarenhas
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* Version: 1.0
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*
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* // steffenj: noteable changes in the LuaDLL API:
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* - luaopen_* functions are gone
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* (however Lua class constructor already calls luaL_openlibs now, so just remove these calls)
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* - deprecated functions: lua_open, lua_strlen, lua_dostring
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* (they still work but may be removed with next Lua version)
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*
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* list of functions of the Lua 5.1.1 C API that are not in LuaDLL
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* i thought this may come in handy for the next Lua version upgrade and for anyone to see
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* what the differences are in the APIs (C API vs LuaDLL API)
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lua_concat (use System.String concatenation or similar)
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lua_cpcall (no point in calling C functions)
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lua_dump (would write to unmanaged memory via lua_Writer)
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lua_getallocf (no C functions/pointers)
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lua_isthread (no threads)
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lua_newstate (use luaL_newstate)
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lua_newthread (no threads)
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lua_pushcclosure (no C functions/pointers)
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lua_pushcfunction (no C functions/pointers)
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lua_pushfstring (use lua_pushstring)
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lua_pushthread (no threads)
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lua_pushvfstring (use lua_pushstring)
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lua_register (all libs already opened, use require in scripts for external libs)
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lua_resume (no threads)
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lua_setallocf (no C functions/pointers)
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lua_status (no threads)
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lua_tointeger (use System.Convert)
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lua_tolstring (use lua_tostring)
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lua_topointer (no C functions/pointers)
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lua_tothread (no threads)
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lua_xmove (no threads)
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lua_yield (no threads)
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luaL_add* (use System.String concatenation or similar)
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luaL_argcheck (function argument checking unnecessary)
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luaL_argerror (function argument checking unnecessary)
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luaL_buffinit (use System.String concatenation or similar)
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luaL_checkany (function argument checking unnecessary)
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luaL_checkint (function argument checking unnecessary)
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luaL_checkinteger (function argument checking unnecessary)
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luaL_checklong (function argument checking unnecessary)
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luaL_checklstring (function argument checking unnecessary)
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luaL_checknumber (function argument checking unnecessary)
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luaL_checkoption (function argument checking unnecessary)
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luaL_checkstring (function argument checking unnecessary)
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luaL_checktype (function argument checking unnecessary)
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luaL_prepbuffer (use System.String concatenation or similar)
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luaL_pushresult (use System.String concatenation or similar)
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luaL_register (all libs already opened, use require in scripts for external libs)
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luaL_typerror (function argument checking unnecessary)
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(complete lua_Debug interface omitted)
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lua_gethook***
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lua_getinfo
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lua_getlocal
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lua_getstack
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lua_getupvalue
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lua_sethook
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lua_setlocal
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lua_setupvalue
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*/
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public class LuaDLL
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{
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// for debugging
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// const string BASEPATH = @"C:\development\software\dotnet\tools\PulseRecognizer\PulseRecognizer\bin\Debug\";
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// const string BASEPATH = @"C:\development\software\ThirdParty\lua\Built\";
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const string LUADLL = "lua51.dll";
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const string LUALIBDLL = LUADLL;
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const string STUBDLL = LUADLL;
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// steffenj: BEGIN additional Lua API functions new in Lua 5.1
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_gc(IntPtr luaState, LuaGCOptions what, int data);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern string lua_typename(IntPtr luaState, LuaTypes type);
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public static string luaL_typename(IntPtr luaState, int stackPos)
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{
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return LuaDLL.lua_typename(luaState, LuaDLL.lua_type(luaState, stackPos));
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}
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[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern void luaL_error(IntPtr luaState, string message);
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[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern string luaL_gsub(IntPtr luaState, string str, string pattern, string replacement);
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// the functions below are still untested
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern void lua_getfenv(IntPtr luaState, int stackPos);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_isfunction(IntPtr luaState, int stackPos);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_islightuserdata(IntPtr luaState, int stackPos);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_istable(IntPtr luaState, int stackPos);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_isuserdata(IntPtr luaState, int stackPos);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_lessthan(IntPtr luaState, int stackPos1, int stackPos2);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_rawequal(IntPtr luaState, int stackPos1, int stackPos2);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_setfenv(IntPtr luaState, int stackPos);
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern void lua_setfield(IntPtr luaState, int stackPos, string name);
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[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int luaL_callmeta(IntPtr luaState, int stackPos, string name);
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// steffenj: END additional Lua API functions new in Lua 5.1
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// steffenj: BEGIN Lua 5.1.1 API change (lua_open replaced by luaL_newstate)
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[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern IntPtr luaL_newstate();
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/// <summary>DEPRECATED - use luaL_newstate() instead!</summary>
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public static IntPtr lua_open()
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{
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return LuaDLL.luaL_newstate();
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}
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// steffenj: END Lua 5.1.1 API change (lua_open replaced by luaL_newstate)
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern void lua_close(IntPtr luaState);
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// steffenj: BEGIN Lua 5.1.1 API change (new function luaL_openlibs)
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[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern void luaL_openlibs(IntPtr luaState);
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/*
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[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern void luaopen_base(IntPtr luaState);
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[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void luaopen_io(IntPtr luaState);
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[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void luaopen_table(IntPtr luaState);
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[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void luaopen_string(IntPtr luaState);
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[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void luaopen_math(IntPtr luaState);
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[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void luaopen_debug(IntPtr luaState);
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[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void luaopen_loadlib(IntPtr luaState);
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*/
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// steffenj: END Lua 5.1.1 API change (new function luaL_openlibs)
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// steffenj: BEGIN Lua 5.1.1 API change (lua_strlen is now lua_objlen)
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int lua_objlen(IntPtr luaState, int stackPos);
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/// <summary>DEPRECATED - use lua_objlen(IntPtr luaState, int stackPos) instead!</summary>
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public static int lua_strlen(IntPtr luaState, int stackPos)
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{
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return lua_objlen(luaState, stackPos);
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}
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// steffenj: END Lua 5.1.1 API change (lua_strlen is now lua_objlen)
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// steffenj: BEGIN Lua 5.1.1 API change (lua_dostring is now a macro luaL_dostring)
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[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern int luaL_loadstring(IntPtr luaState, string chunk);
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public static int luaL_dostring(IntPtr luaState, string chunk)
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{
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int result = LuaDLL.luaL_loadstring(luaState, chunk);
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if (result != 0)
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return result;
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return LuaDLL.lua_pcall(luaState, 0, -1, 0);
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}
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/// <summary>DEPRECATED - use luaL_dostring(IntPtr luaState, string chunk) instead!</summary>
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public static int lua_dostring(IntPtr luaState, string chunk)
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{
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return LuaDLL.luaL_dostring(luaState, chunk);
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}
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// steffenj: END Lua 5.1.1 API change (lua_dostring is now a macro luaL_dostring)
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// steffenj: BEGIN Lua 5.1.1 API change (lua_newtable is gone, lua_createtable is new)
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern void lua_createtable(IntPtr luaState, int narr, int nrec);
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public static void lua_newtable(IntPtr luaState)
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{
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LuaDLL.lua_createtable(luaState, 0, 0);
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}
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// steffenj: END Lua 5.1.1 API change (lua_newtable is gone, lua_createtable is new)
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// steffenj: BEGIN Lua 5.1.1 API change (lua_dofile now in LuaLib as luaL_dofile macro)
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//[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
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public static int luaL_dofile(IntPtr luaState, string fileName)
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{
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int result = LuaDLL.luaL_loadfile(luaState, fileName);
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if (result != 0)
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return result;
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return LuaDLL.lua_pcall(luaState, 0, -1, 0);
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}
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// steffenj: END Lua 5.1.1 API change (lua_dofile now in LuaLib as luaL_dofile)
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public static void lua_getglobal(IntPtr luaState, string name)
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{
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LuaDLL.lua_pushstring(luaState,name);
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LuaDLL.lua_gettable(luaState,LuaIndexes.LUA_GLOBALSINDEX);
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}
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public static void lua_setglobal(IntPtr luaState, string name)
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{
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LuaDLL.lua_pushstring(luaState,name);
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LuaDLL.lua_insert(luaState,-2);
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LuaDLL.lua_settable(luaState,LuaIndexes.LUA_GLOBALSINDEX);
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}
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_settop(IntPtr luaState, int newTop);
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// steffenj: BEGIN added lua_pop "macro"
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public static void lua_pop(IntPtr luaState, int amount)
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{
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LuaDLL.lua_settop(luaState, -(amount) - 1);
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}
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// steffenj: END added lua_pop "macro"
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[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
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public static extern void lua_insert(IntPtr luaState, int newTop);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_remove(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_gettable(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_rawget(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_settable(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_rawset(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_setmetatable(IntPtr luaState, int objIndex);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern int lua_getmetatable(IntPtr luaState, int objIndex);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern int lua_equal(IntPtr luaState, int index1, int index2);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_pushvalue(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_replace(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern int lua_gettop(IntPtr luaState);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern LuaTypes lua_type(IntPtr luaState, int index);
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public static bool lua_isnil(IntPtr luaState, int index)
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{
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return (LuaDLL.lua_type(luaState,index)==LuaTypes.LUA_TNIL);
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}
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern bool lua_isnumber(IntPtr luaState, int index);
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public static bool lua_isboolean(IntPtr luaState, int index)
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{
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return LuaDLL.lua_type(luaState,index)==LuaTypes.LUA_TBOOLEAN;
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}
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[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern int luaL_ref(IntPtr luaState, int registryIndex);
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public static int lua_ref(IntPtr luaState, int lockRef)
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{
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if(lockRef!=0)
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{
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return LuaDLL.luaL_ref(luaState,LuaIndexes.LUA_REGISTRYINDEX);
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}
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else return 0;
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}
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_rawgeti(IntPtr luaState, int tableIndex, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_rawseti(IntPtr luaState, int tableIndex, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern IntPtr lua_newuserdata(IntPtr luaState, int size);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern IntPtr lua_touserdata(IntPtr luaState, int index);
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public static void lua_getref(IntPtr luaState, int reference)
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{
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LuaDLL.lua_rawgeti(luaState,LuaIndexes.LUA_REGISTRYINDEX,reference);
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}
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[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void luaL_unref(IntPtr luaState, int registryIndex, int reference);
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public static void lua_unref(IntPtr luaState, int reference)
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{
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LuaDLL.luaL_unref(luaState,LuaIndexes.LUA_REGISTRYINDEX,reference);
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}
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern bool lua_isstring(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern bool lua_iscfunction(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_pushnil(IntPtr luaState);
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[DllImport(STUBDLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern void lua_pushstdcallcfunction(IntPtr luaState, [MarshalAs(UnmanagedType.FunctionPtr)]LuaCSFunction function);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern int lua_call(IntPtr luaState, int nArgs, int nResults);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern int lua_pcall(IntPtr luaState, int nArgs, int nResults, int errfunc);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern int lua_rawcall(IntPtr luaState, int nArgs, int nResults);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern IntPtr lua_tocfunction(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern double lua_tonumber(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
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public static extern bool lua_toboolean(IntPtr luaState, int index);
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[DllImport(LUADLL,CallingConvention = CallingConvention.Cdecl)]
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public static extern IntPtr lua_tolstring(IntPtr luaState, int index, out int strLen);
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public static string lua_tostring(IntPtr luaState, int index)
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{
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int strlen;
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IntPtr str = lua_tolstring(luaState, index, out strlen);
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if (str != IntPtr.Zero)
|
|
return Marshal.PtrToStringAnsi(str, strlen);
|
|
else
|
|
return null; // treat lua nulls to as C# nulls
|
|
}
|
|
|
|
[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
|
|
public static extern void lua_atpanic(IntPtr luaState, LuaFunctionCallback panicf);
|
|
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern void lua_pushnumber(IntPtr luaState, double number);
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern void lua_pushboolean(IntPtr luaState, bool value);
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern void lua_pushlstring(IntPtr luaState, string str, int size);
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern void lua_pushstring(IntPtr luaState, string str);
|
|
[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int luaL_newmetatable(IntPtr luaState, string meta);
|
|
// steffenj: BEGIN Lua 5.1.1 API change (luaL_getmetatable is now a macro using lua_getfield)
|
|
[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
|
|
public static extern void lua_getfield(IntPtr luaState, int stackPos, string meta);
|
|
public static void luaL_getmetatable(IntPtr luaState, string meta)
|
|
{
|
|
LuaDLL.lua_getfield(luaState, LuaIndexes.LUA_REGISTRYINDEX, meta);
|
|
}
|
|
// steffenj: END Lua 5.1.1 API change (luaL_getmetatable is now a macro using lua_getfield)
|
|
[DllImport(LUALIBDLL, CallingConvention = CallingConvention.Cdecl)]
|
|
public static extern IntPtr luaL_checkudata(IntPtr luaState, int stackPos, string meta);
|
|
[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern bool luaL_getmetafield(IntPtr luaState, int stackPos, string field);
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int lua_load(IntPtr luaState, LuaChunkReader chunkReader, ref ReaderInfo data, string chunkName);
|
|
[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int luaL_loadbuffer(IntPtr luaState, string buff, int size, string name);
|
|
[DllImport(LUALIBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int luaL_loadfile(IntPtr luaState, string filename);
|
|
[DllImport(STUBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern bool luaL_checkmetatable(IntPtr luaState,int obj);
|
|
[DllImport(STUBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int luanet_tonetobject(IntPtr luaState,int obj);
|
|
[DllImport(STUBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int luanet_newudata(IntPtr luaState,int val);
|
|
[DllImport(STUBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int luanet_rawnetobj(IntPtr luaState,int obj);
|
|
[DllImport(STUBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int luanet_checkudata(IntPtr luaState,int obj,string meta);
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern void lua_error(IntPtr luaState);
|
|
[DllImport(LUADLL, CallingConvention = CallingConvention.Cdecl)]
|
|
public static extern bool lua_checkstack(IntPtr luaState,int extra);
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern int lua_next(IntPtr luaState,int index);
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern void lua_pushlightuserdata(IntPtr luaState, IntPtr udata);
|
|
[DllImport(STUBDLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern IntPtr luanet_gettag();
|
|
[DllImport(LUADLL,CallingConvention=CallingConvention.Cdecl)]
|
|
public static extern void luaL_where (IntPtr luaState, int level);
|
|
}
|
|
}
|