Did the following:

- Corrected luaL_reg struct where members were not public
- Added AsLuaLReg function to assist in making luaL_Reg libraries
- Bumped lua544 to lua546
  Added new function lua_closethread(lua_State, lua_State)
  Made a note that lua_resetthread(lua_State) is deprecated
  Bumped version
  Amended copyright
  No breaking changes

Author: tilkinsc

src/Lua51.cs

@@ -38,8 +38,8 @@ public struct lua_Debug {
 
 	[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Ansi)]
 	public struct luaL_Reg {
-		string name;
-		charp func;
+		public string name;
+		public charp func;
 	};
 
 	[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Ansi)]
@@ -57,6 +57,8 @@ public struct luaL_Buffer {
 	public delegate voidp lua_Alloc(voidp ud, voidp ptr, size_t osize, size_t nsize);
 	public delegate void lua_Hook(lua_State L, lua_Debug ar);
 
+	public static unsafe luaL_Reg AsLuaLReg(string name, delegate*unmanaged<lua_State, int> func) => new luaL_Reg { name  = name, func = (nint) func };
+	
 	public const string LUA_PATH = "LUA_PATH";
 	public const string LUA_CPATH = "LUA_CPATH";
 	public const string LUA_INIT = "LUA_INIT";

src/Lua52.cs

@@ -62,6 +62,8 @@ public struct luaL_Buffer {
 	public delegate voidp lua_Alloc(voidp ud, voidp ptr, size_t osize, size_t nsize);
 	public delegate void lua_Hook(lua_State L, lua_Debug ar);
 
+	public static unsafe luaL_Reg AsLuaLReg(string name, delegate*unmanaged<lua_State, int> func) => new luaL_Reg { name  = name, func = (nint) func };
+	
 	public const string LUA_LDIR = "!\\lua\\";
 	public const string LUA_CDIR = "!\\";
 	public const string LUA_PATH_DEFAULT = LUA_LDIR + "?.lua;" + LUA_LDIR + "?\\init.lua;" + LUA_CDIR + "?.lua;" + LUA_CDIR + "?\\init.lua;" + ".\\?.lua";

src/Lua53.cs

@@ -64,6 +64,8 @@ public struct luaL_Buffer {
 	public delegate voidp lua_Alloc(voidp ud, voidp ptr, size_t osize, size_t nsize);
 	public delegate void lua_Hook(lua_State L, lua_Debug ar);
 
+	public static unsafe luaL_Reg AsLuaLReg(string name, delegate*unmanaged<lua_State, int> func) => new luaL_Reg { name  = name, func = (nint) func };
+	
 	public const int LUAI_BITSINT = 32;
 
 	public const int LUA_INT_INT = 1;

src/Lua54.cs

@@ -23,7 +23,7 @@ public struct lua_KContext
 public static class Lua
 {
 
-	private const string DllName = "Lua544.dll";
+	private const string DllName = "Lua546.dll";
 	private const CallingConvention Convention = CallingConvention.Cdecl;
 
 	[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Ansi)]
@@ -72,6 +72,8 @@ public struct luaL_Buffer {
 	public delegate void lua_WarnFunction(voidp ud, string msg, int tocont);
 	public delegate void lua_Hook(lua_State L, lua_Debug ar);
 
+	public static unsafe luaL_Reg AsLuaLReg(string name, delegate*unmanaged<lua_State, int> func) => new luaL_Reg { name  = name, func = (nint) func };
+	
 	public const int LUAI_IS32INT = 1;
 
 	public const int LUA_INT_INT = 1;
@@ -120,14 +122,14 @@ public struct luaL_Buffer {
 
 	public const string LUA_VERSION_MAJOR = "5";
 	public const string LUA_VERSION_MINOR = "4";
-	public const string LUA_VERSION_RELEASE = "4";
+	public const string LUA_VERSION_RELEASE = "6";
 
 	public const int LUA_VERSION_NUM = 504;
-	public const int LUA_VERSION_RELEASE_NUM = LUA_VERSION_NUM * 100 + 4;
+	public const int LUA_VERSION_RELEASE_NUM = LUA_VERSION_NUM * 100 + 6;
 
 	public const string LUA_VERSION = "Lua " + LUA_VERSION_MAJOR + "." + LUA_VERSION_MINOR;
 	public const string LUA_RELEASE = LUA_VERSION + "." + LUA_VERSION_RELEASE;
-	public const string LUA_COPYRIGHT = LUA_RELEASE + "  Copyright (C) 1994-2022 Lua.org, PUC-Rio";
+	public const string LUA_COPYRIGHT = LUA_RELEASE + "  Copyright (C) 1994-2023 Lua.org, PUC-Rio";
 	public const string LUA_AUTHORS = "R. Ierusalimschy, L. H. de Figueiredo, W. Celes";
 
 	public const string LUA_SIGNATURE = "\x1bLua";
@@ -181,7 +183,10 @@ public static lua_State lua_newstate(lua_Alloc? f, voidp ud)
 	public static extern lua_State lua_newthread(lua_State L);
 
 	[DllImport(DllName, CallingConvention = Convention)]
-	public static extern int lua_resetthread(lua_State L);
+	public static extern int lua_closethread(lua_State L, lua_State from);
+	
+	[DllImport(DllName, CallingConvention = Convention)]
+	public static extern int lua_resetthread(lua_State L); // deprecated
 
 	[DllImport(DllName, CallingConvention = Convention, EntryPoint = "lua_atpanic")]
 	public static extern charp _lua_atpanic(lua_State L, charp panicf);

src/LuaJIT.cs

@@ -37,8 +37,8 @@ public struct lua_Debug {
 
 	[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Ansi)]
 	public struct luaL_Reg {
-		string name;
-		charp func;
+		public string? name;
+		public charp func;
 	};
 
 	[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Ansi)]
@@ -56,6 +56,8 @@ public struct luaL_Buffer {
 	public delegate voidp lua_Alloc(voidp ud, voidp ptr, size_t osize, size_t nsize);
 	public delegate void lua_Hook(lua_State L, lua_Debug ar);
 
+	public static unsafe luaL_Reg AsLuaLReg(string name, delegate*unmanaged<lua_State, int> func) => new luaL_Reg { name  = name, func = (nint) func };
+	
 	public const string LUAJIT_VERSION = "LuaJIT 2.1.0-beta3";
 	public const int LUAJIT_VERSION_NUM = 20100;
 	public const string LUAJIT_VERSION_SYM = "luaJIT_version_2_1_0_beta3";