BlitzMax/Modules/Other/Lua Core

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"Lua is an extension programming language designed to support general procedural programming with data description facilities. It also offers good support for object-oriented programming, functional programming, and data-driven programming. Lua is intended to be used as a powerful, light-weight scripting language for any program that needs one." (from "Lua 5.1 Reference Manual" by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, Waldemar Celes)

This module provides a BlitzMax interface to the Lua main and auxiliary APIs. It is almost complete, the only functions missing are those with variable argument lists (which are not yet supported by BlitzMax).

The axe.lua package also contains the full Lua 5.1.4 distribution. The Lua source code is completely integrated into the module, additional DLLs (or shared libraries, resp.) are no longer required.

Lua Documentation[edit | edit source]

The Lua Reference Manual is part of this distribution and may be directly visited from here:

Additional information can be found on the Lua web site; the Lua wiki contains further material about this module and related packages.

Introduction[edit | edit source]

The following description is not meant as a tutorial, but may still help you to start Lua programming within BlitzMax. More API-related information can be found in the Lua Reference Manual

Setting up a Lua VM[edit | edit source]

Running Lua scripts always require the instantiation of at least one Lua VM:

local LuaState:byte ptr = luaL_newstate()

The result of this instantiation is a pointer to a structure which contains the full state of the new VM and has to be passed as the first argument to almost any other Lua API function.

It is now time to "open" the intrinsic Lua libraries (note: these libraries are part of axe.lua now, external DLLs or shared libraries are not necessary):

luaL_openlibs(LuaState)

Always initialize the Lua VM by opening its libraries unless you really know what you are doing!

Usually, creating a single Lua state is sufficient, even further (Lua) threads share the basic Lua state (and its associated environment).

Shutting down a Lua VM[edit | edit source]

At the end, it's always a good idea to shut down the Lua VM

lua_close(LuaState)

The Lua interpreter has now been terminated and its state variable is no longer valid.

Accessing Lua Globals[edit | edit source]

The code

lua_pushstring(LuaState, "BMXString")
lua_setglobal (LuaState, "luaglobal")

defines a global Lua variable (called luaglobal) which contains a string (namely "BMXString").

Registering BlitzMax Functions[edit | edit source]

In order to access BlitzMax features from within a Lua script, it is necessary to implement suitable BlitzMax functions and register them in the Lua VM.

Such BlitzMax functions typically look as follows:

function BMXName:int (LuaState:Byte Ptr)
   ...      ' handling of parameters passed from Lua (if required)
     ...    ' actual function body
   ...      ' passing results back to Lua (if required)
   return 0 ' number of values returned to Lua
 end function

Such a function is then registered using

lua_register(LuaState, "luaname", BMXName)

This command registers a BlitzMax function (called BMXName) with the (global) name luaname under Lua. Both names may be equal, but they do not have to.

Running Lua Scripts From Within BlitzMax[edit | edit source]

The code

local Result:int = luaL_loadString(LuaState,LuaScript)
 if (Result <> 0) then
   ' ERROR!!!
   lua_close(LuaState) ' just to be complete
   end
 end if

loads and compiles a (BlitzMax) string containing a LuaScript. The result (of compilation) is left on the (Lua) stack.

lua_getfield(LuaState, LUA_GLOBALSINDEX, "debug")' get global "debug"
 lua_getfield(LuaState, -1, "traceback")       ' get "debug.traceback"
 lua_remove (LuaState, -2)           ' remove "debug" table from stack

 Result = lua_pcall(LuaState,1,-1,-1)' use "debug.traceback" as err.hdlr
 if (Result <> 0) then
   ' ERROR
   lua_close(LuaState) ' just to be complete
   end
 end if

actually evaluates the previously loaded script. The initially mentioned Lua commands just prepare for proper error messages should the Lua script fail.

Functions[edit | edit source]

Lua_atpanic[edit | edit source]

Function lua_atpanic:Byte Ptr (lua_state:Byte Ptr, panicf:Int(ls:Byte Ptr)

Description: see Lua Reference Manual

Lua_call[edit | edit source]

Function lua_call (lua_state:Byte Ptr, nargs:Int, nresults:Int)

Description: see Lua Reference Manual

Lua_checkstack[edit | edit source]

Function lua_checkstack:Int (lua_state:Byte Ptr, extra:Int)

Description: see Lua Reference Manual

Lua_close[edit | edit source]

Function lua_close (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_concat[edit | edit source]

Function lua_concat (lua_state:Byte Ptr, n:Int)

Description: see Lua Reference Manual

Lua_cpcall[edit | edit source]

Function lua_cpcall:Int (lua_state:Byte Ptr, func:Int(ls:Byte Ptr)

Description: see Lua Reference Manual

Lua_createtable[edit | edit source]

Function lua_createtable (lua_state:Byte Ptr, narr:Int, nrec:Int)

Description: see Lua Reference Manual

Lua_dump[edit | edit source]

Function lua_dump:Int (lua_state:Byte Ptr, writer:Int(ls:Byte Ptr,p:Byte Ptr,sz:Int,ud:Byte Ptr)

Description: see Lua Reference Manual

Lua_equal[edit | edit source]

Function lua_equal:Int (lua_state:Byte Ptr, index1:Int, index2:Int)

Description: see Lua Reference Manual

Lua_error[edit | edit source]

Function lua_error:Int (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_gc[edit | edit source]

Function lua_gc:Int (lua_state:Byte Ptr, what:Int, data:Int)

Description: see Lua Reference Manual

Lua_getallocf[edit | edit source]

Function lua_getallocf:Byte Ptr (lua_state:Byte Ptr, ud:Byte Ptr Ptr)

Description: see Lua Reference Manual

Lua_getfenv[edit | edit source]

Function lua_getfenv (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_getfield[edit | edit source]

Function lua_getfield (lua_state:Byte Ptr, index:Int, k$z)

Description: see Lua Reference Manual

Lua_gethook[edit | edit source]

Function lua_gethook:Byte Ptr (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_gethookcount[edit | edit source]

Function lua_gethookcount:Int (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_gethookmask[edit | edit source]

Function lua_gethookmask:Int (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_getinfo[edit | edit source]

Function lua_getinfo:Int (lua_state:Byte Ptr, what$z, ar:lua_Debug Ptr)

Description: see Lua Reference Manual

Lua_getlocal[edit | edit source]

Function lua_getlocal$z (lua_state:Byte Ptr, ar:lua_Debug Ptr, n:Int)

Description: see Lua Reference Manual

Lua_getmetatable[edit | edit source]

Function lua_getmetatable:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_getstack[edit | edit source]

Function lua_getstack:Int (lua_state:Byte Ptr, level:Int, ar:lua_Debug Ptr)

Description: see Lua Reference Manual

Lua_gettable[edit | edit source]

Function lua_gettable (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_gettop[edit | edit source]

Function lua_gettop:Int (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_getupvalue[edit | edit source]

Function lua_getupvalue$z (lua_state:Byte Ptr, funcindex:Int, n:Int)

Description: see Lua Reference Manual

Lua_insert[edit | edit source]

Function lua_insert (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_iscfunction[edit | edit source]

Function lua_iscfunction:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_isnumber[edit | edit source]

Function lua_isnumber:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_isstring[edit | edit source]

Function lua_isstring:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_isuserdata[edit | edit source]

Function lua_isuserdata:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_lessthan[edit | edit source]

Function lua_lessthan:Int (lua_state:Byte Ptr, index1:Int, index2:Int)

Description: see Lua Reference Manual

Lua_load[edit | edit source]

Function lua_load:Int (lua_state:Byte Ptr, reader:Byte Ptr(ls:Byte Ptr,data:Byte Ptr,sz:Int Ptr)

Description: see Lua Reference Manual

Lua_newstate[edit | edit source]

Function lua_newstate:Byte Ptr (f:Byte Ptr(ud:Byte Ptr, p:Byte Ptr, osize:Int, nsize:Int)

Description: see Lua Reference Manual

Lua_newthread[edit | edit source]

Function lua_newthread:Byte Ptr (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_newuserdata[edit | edit source]

Function lua_newuserdata:Byte Ptr (lua_state:Byte Ptr, size:Int)

Description: see Lua Reference Manual

Lua_next[edit | edit source]

Function lua_next:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_objlen[edit | edit source]

Function lua_objlen:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_pcall[edit | edit source]

Function lua_pcall:Int (lua_state:Byte Ptr, nargs:Int, nresults:Int, errfunc:Int)

Description: see Lua Reference Manual

Lua_pushboolean[edit | edit source]

Function lua_pushboolean (lua_state:Byte Ptr, b:Int)

Description: see Lua Reference Manual

Lua_pushcclosure[edit | edit source]

Function lua_pushcclosure (lua_state:Byte Ptr, fn:Int(ls:Byte Ptr)

Description: see Lua Reference Manual

Lua_pushinteger[edit | edit source]

Function lua_pushinteger (lua_state:Byte Ptr, n:Int)

Description: see Lua Reference Manual

Lua_pushlightuserdata[edit | edit source]

Function lua_pushlightuserdata (lua_state:Byte Ptr, p:Byte Ptr)

Description: see Lua Reference Manual

Lua_pushlstring[edit | edit source]

Function lua_pushlstring (lua_state:Byte Ptr, s:Byte Ptr, size:Int)

Description: see Lua Reference Manual

Lua_pushnil[edit | edit source]

Function lua_pushnil (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_pushnumber[edit | edit source]

Function lua_pushnumber (lua_state:Byte Ptr, n:Double)

Description: see Lua Reference Manual

Lua_pushstring[edit | edit source]

Function lua_pushstring (lua_state:Byte Ptr, s$z)

Description: see Lua Reference Manual

Lua_pushthread[edit | edit source]

Function lua_pushthread:Int (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_pushvalue[edit | edit source]

Function lua_pushvalue (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_rawequal[edit | edit source]

Function lua_rawequal:Int (lua_state:Byte Ptr, index1:Int, index2:Int)

Description: see Lua Reference Manual

Lua_rawget[edit | edit source]

Function lua_rawget (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_rawgeti[edit | edit source]

Function lua_rawgeti (lua_state:Byte Ptr, index:Int, n:Int)

Description: see Lua Reference Manual

Lua_rawset[edit | edit source]

Function lua_rawset (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_rawseti[edit | edit source]

Function lua_rawseti (lua_state:Byte Ptr, index:Int, n:Int)

Description: see Lua Reference Manual

Lua_remove[edit | edit source]

Function lua_remove (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_replace[edit | edit source]

Function lua_replace (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_resume[edit | edit source]

Function lua_resume:Int (lua_state:Byte Ptr, narg:Int)

Description: see Lua Reference Manual

Lua_setallocf[edit | edit source]

Function lua_setallocf (lua_state:Byte Ptr, f:Byte Ptr(ud:Byte Ptr, p:Byte Ptr, osize:Int, nsize:Int)

Description: see Lua Reference Manual

Lua_setfenv[edit | edit source]

Function lua_setfenv:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_setfield[edit | edit source]

Function lua_setfield (lua_state:Byte Ptr, index:Int, k$z)

Description: see Lua Reference Manual

Lua_sethook[edit | edit source]

Function lua_sethook:Int (lua_state:Byte Ptr, f(ls:Byte Ptr,ar:lua_Debug Ptr)

Description: see Lua Reference Manual

Lua_setlocal[edit | edit source]

Function lua_setlocal$z (lua_state:Byte Ptr, ar:lua_Debug Ptr, n:Int)

Description: see Lua Reference Manual

Lua_setmetatable[edit | edit source]

Function lua_setmetatable:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_settable[edit | edit source]

Function lua_settable (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_settop[edit | edit source]

Function lua_settop (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_setupvalue[edit | edit source]

Function lua_setupvalue$z (lua_state:Byte Ptr, funcindex:Int, n:Int)

Description: see Lua Reference Manual

Lua_status[edit | edit source]

Function lua_status:Int (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_toboolean[edit | edit source]

Function lua_toboolean:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_tocfunction[edit | edit source]

Function lua_tocfunction:Byte Ptr (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_tointeger[edit | edit source]

Function lua_tointeger:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_tolstring[edit | edit source]

Function lua_tolstring:Byte Ptr (lua_state:Byte Ptr, index:Int, size:Int Ptr)

Description: see Lua Reference Manual

Lua_tonumber[edit | edit source]

Function lua_tonumber:Double (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_topointer[edit | edit source]

Function lua_topointer:Byte Ptr (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_tothread[edit | edit source]

Function lua_tothread:Byte Ptr (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_touserdata[edit | edit source]

Function lua_touserdata:Byte Ptr (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_type[edit | edit source]

Function lua_type:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_typename[edit | edit source]

Function lua_typename$z (lua_state:Byte Ptr, tp:Int)

Description: see Lua Reference Manual

Lua_xmove[edit | edit source]

Function lua_xmove (fromState:Byte Ptr, toState:Byte Ptr, n:Int)

Description: see Lua Reference Manual

Lua_yield[edit | edit source]

Function lua_yield:Int (lua_state:Byte Ptr, nresults:Int)

Description: see Lua Reference Manual

Lua_getglobal[edit | edit source]

Function lua_getglobal (lua_state:Byte Ptr, name:String)

Description: see Lua Reference Manual

Lua_isboolean[edit | edit source]

Function lua_isboolean:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_isfunction[edit | edit source]

Function lua_isfunction:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_islightuserdata[edit | edit source]

Function lua_islightuserdata:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_isnil[edit | edit source]

Function lua_isnil:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_isnone[edit | edit source]

Function lua_isnone:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_isnoneornil[edit | edit source]

Function lua_isnoneornil:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_istable[edit | edit source]

Function lua_istable:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_isthread[edit | edit source]

Function lua_isthread:Int (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

Lua_newtable[edit | edit source]

Function lua_newtable (lua_state:Byte Ptr)

Description: see Lua Reference Manual

Lua_pop[edit | edit source]

Function lua_pop (lua_state:Byte Ptr, n:Int)

Description: see Lua Reference Manual

Lua_pushcfunction[edit | edit source]

Function lua_pushcfunction (lua_state:Byte Ptr, fn:Int(ls:Byte Ptr)

Description: see Lua Reference Manual

Lua_register[edit | edit source]

Function lua_register (lua_state:Byte Ptr, name:String, f:Int(ls:Byte Ptr)

Description: see Lua Reference Manual

Lua_setglobal[edit | edit source]

Function lua_setglobal (lua_state:Byte Ptr, name:String)

Description: see Lua Reference Manual

Lua_tostring[edit | edit source]

Function lua_tostring:String (lua_state:Byte Ptr, index:Int)

Description: see Lua Reference Manual

LuaL_addlstring[edit | edit source]

Function luaL_addlstring (B:Byte Ptr, s:Byte Ptr, l:Int)

Description: see Lua Reference Manual

LuaL_addsize[edit | edit source]

Function luaL_addsize (B:Byte Ptr, size:Int)

Description: see Lua Reference Manual

LuaL_addstring[edit | edit source]

Function luaL_addstring (B:Byte Ptr, s$z)

Description: see Lua Reference Manual

LuaL_addvalue[edit | edit source]

Function luaL_addvalue (B:Byte Ptr)

Description: see Lua Reference Manual

LuaL_argerror[edit | edit source]

Function luaL_argerror:Int (lua_state:Byte Ptr, narg:Int, extramsg$z)

Description: see Lua Reference Manual

LuaL_buffinit[edit | edit source]

Function luaL_buffinit (lua_state:Byte Ptr, B:Byte Ptr)

Description: see Lua Reference Manual

LuaL_callmeta[edit | edit source]

Function luaL_callmeta:Int (lua_state:Byte Ptr, obj:Int, e$z)

Description: see Lua Reference Manual

LuaL_checkany[edit | edit source]

Function luaL_checkany (lua_state:Byte Ptr, narg:Int)

Description: see Lua Reference Manual

LuaL_checkinteger[edit | edit source]

Function luaL_checkinteger:Int (lua_state:Byte Ptr, narg:Int)

Description: see Lua Reference Manual

LuaL_checklstring[edit | edit source]

Function luaL_checklstring:Byte Ptr (lua_state:Byte Ptr, narg:Int, size:Int Ptr)

Description: see Lua Reference Manual

LuaL_checknumber[edit | edit source]

Function luaL_checknumber:Double (lua_state:Byte Ptr, narg:Int)

Description: see Lua Reference Manual

LuaL_checkstack[edit | edit source]

Function luaL_checkstack (lua_state:Byte Ptr, sz:Int, msg$z)

Description: see Lua Reference Manual

LuaL_checktype[edit | edit source]

Function luaL_checktype (lua_state:Byte Ptr, narg:Int, t:Int)

Description: see Lua Reference Manual

LuaL_checkudata[edit | edit source]

Function luaL_checkudata:Byte Ptr (lua_state:Byte Ptr, narg:Int, tname$z)

Description: see Lua Reference Manual

LuaL_getmetafield[edit | edit source]

Function luaL_getmetafield:Int (lua_state:Byte Ptr, obj:Int, e$z)

Description: see Lua Reference Manual

LuaL_gsub[edit | edit source]

Function luaL_gsub$z (lua_state:Byte Ptr, s$z, p$z, r$z)

Description: see Lua Reference Manual

LuaL_loadbuffer[edit | edit source]

Function luaL_loadbuffer:Int (lua_state:Byte Ptr, buff:Byte Ptr, sz:Int, name$z)

Description: see Lua Reference Manual

LuaL_loadfile[edit | edit source]

Function luaL_loadfile:Int (lua_state:Byte Ptr, filename$z)

Description: see Lua Reference Manual

LuaL_loadstring[edit | edit source]

Function luaL_loadstring:Int (lua_state:Byte Ptr, s$z)

Description: see Lua Reference Manual

LuaL_newmetatable[edit | edit source]

Function luaL_newmetatable:Int (lua_state:Byte Ptr, tname$z)

Description: see Lua Reference Manual

LuaL_newstate[edit | edit source]

Function luaL_newstate:Byte Ptr ()

Description: see Lua Reference Manual

LuaL_openlibs[edit | edit source]

Function luaL_openlibs (lua_state:Byte Ptr)

Description: see Lua Reference Manual

LuaL_optinteger[edit | edit source]

Function luaL_optinteger:Int (lua_state:Byte Ptr, narg:Int, d:Int)

Description: see Lua Reference Manual

LuaL_optlstring[edit | edit source]

Function luaL_optlstring:Byte Ptr (lua_state:Byte Ptr, narg:Int, d$z, size:Int Ptr)

Description: see Lua Reference Manual

LuaL_optnumber[edit | edit source]

Function luaL_optnumber:Double (lua_state:Byte Ptr, narg:Int, d:Double)

Description: see Lua Reference Manual

LuaL_prepbuffer[edit | edit source]

Function luaL_prepbuffer:Byte Ptr (B:Byte Ptr)

Description: see Lua Reference Manual

LuaL_pushresult[edit | edit source]

Function luaL_pushresult (B:Byte Ptr)

Description: see Lua Reference Manual

LuaL_ref[edit | edit source]

Function luaL_ref:Int (lua_state:Byte Ptr, t:Int)

Description: see Lua Reference Manual

LuaL_register[edit | edit source]

Function luaL_register (lua_state:Byte Ptr, libname$z, l:lua_Reg Ptr)

Description: see Lua Reference Manual

LuaL_typerror[edit | edit source]

Function luaL_typerror:Int (lua_state:Byte Ptr, narg:Int, tname$z)

Description: see Lua Reference Manual

LuaL_unref[edit | edit source]

Function luaL_unref (lua_state:Byte Ptr, t:Int, ref:Int)

Description: see Lua Reference Manual

LuaL_where[edit | edit source]

Function luaL_where (lua_state:Byte Ptr, lvl:Int)

Description: see Lua Reference Manual

LuaL_addchar[edit | edit source]

Function luaL_addchar (B:Byte Ptr, c:String)

Description: see Lua Reference Manual

LuaL_argcheck[edit | edit source]

Function luaL_argcheck (lua_state:Byte Ptr, cond:Int, narg:Int, extramsg:String)

Description: see Lua Reference Manual

LuaL_checkint[edit | edit source]

Function luaL_checkint:Int (lua_state:Byte Ptr, narg:Int)

Description: see Lua Reference Manual

LuaL_checklong[edit | edit source]

Function luaL_checklong:Long (lua_state:Byte Ptr, narg:Int)

Description: see Lua Reference Manual

LuaL_checkstring[edit | edit source]

Function luaL_checkstring:String (lua_state:Byte Ptr, narg:Int)

Description: see Lua Reference Manual

LuaL_dofile[edit | edit source]

Function luaL_dofile:Int (lua_state:Byte Ptr, filename:String)

Description: see Lua Reference Manual

LuaL_dostring[edit | edit source]

Function luaL_dostring:Int (lua_state:Byte Ptr, str:String)

Description: see Lua Reference Manual

LuaL_getmetatable[edit | edit source]

Function luaL_getmetatable (lua_state:Byte Ptr, tname:String)

Description: see Lua Reference Manual

LuaL_optint[edit | edit source]

Function luaL_optint:Int (lua_state:Byte Ptr, narg:Int, d:Int)

Description: see Lua Reference Manual

LuaL_optlong[edit | edit source]

Function luaL_optlong:Long (lua_state:Byte Ptr, narg:Int, d:Long)

Description: see Lua Reference Manual

LuaL_optstring[edit | edit source]

Function luaL_optstring:String (lua_state:Byte Ptr, narg:Int, d:String)

Description: see Lua Reference Manual

LuaL_typename[edit | edit source]

Function luaL_typename:String (lua_state:Byte Ptr, idx:Int)

Description: see Lua Reference Manual