aafef187ef
-jsoncpp -lua -tolua++ -WebServer -zlib -iniFile git-svn-id: http://mc-server.googlecode.com/svn/trunk@4 0a769ca7-a7f5-676a-18bf-c427514a06d6
134 lines
3.0 KiB
C
134 lines
3.0 KiB
C
/* tolua: funcitons to convert to C types
|
|
** Support code for Lua bindings.
|
|
** Written by Waldemar Celes
|
|
** TeCGraf/PUC-Rio
|
|
** Apr 2003
|
|
** $Id: $
|
|
*/
|
|
|
|
/* This code is free software; you can redistribute it and/or modify it.
|
|
** The software provided hereunder is on an "as is" basis, and
|
|
** the author has no obligation to provide maintenance, support, updates,
|
|
** enhancements, or modifications.
|
|
*/
|
|
|
|
#include "tolua++.h"
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
TOLUA_API lua_Number tolua_tonumber (lua_State* L, int narg, lua_Number def)
|
|
{
|
|
return lua_gettop(L)<abs(narg) ? def : lua_tonumber(L,narg);
|
|
}
|
|
|
|
TOLUA_API const char* tolua_tostring (lua_State* L, int narg, const char* def)
|
|
{
|
|
return lua_gettop(L)<abs(narg) ? def : lua_tostring(L,narg);
|
|
}
|
|
|
|
TOLUA_API void* tolua_touserdata (lua_State* L, int narg, void* def)
|
|
{
|
|
|
|
/* return lua_gettop(L)<abs(narg) ? def : lua_touserdata(L,narg); */
|
|
|
|
if (lua_gettop(L)<abs(narg)) {
|
|
return def;
|
|
};
|
|
|
|
if (lua_islightuserdata(L, narg)) {
|
|
|
|
return lua_touserdata(L,narg);
|
|
};
|
|
|
|
return tolua_tousertype(L, narg, def);
|
|
}
|
|
|
|
extern int push_table_instance(lua_State* L, int lo);
|
|
|
|
TOLUA_API void* tolua_tousertype (lua_State* L, int narg, void* def)
|
|
{
|
|
if (lua_gettop(L)<abs(narg))
|
|
return def;
|
|
else
|
|
{
|
|
void* u;
|
|
if (!lua_isuserdata(L, narg)) {
|
|
if (!push_table_instance(L, narg)) return NULL;
|
|
};
|
|
u = lua_touserdata(L,narg);
|
|
return (u==NULL) ? NULL : *((void**)u); /* nil represents NULL */
|
|
}
|
|
}
|
|
|
|
TOLUA_API int tolua_tovalue (lua_State* L, int narg, int def)
|
|
{
|
|
return lua_gettop(L)<abs(narg) ? def : narg;
|
|
}
|
|
|
|
TOLUA_API int tolua_toboolean (lua_State* L, int narg, int def)
|
|
{
|
|
return lua_gettop(L)<abs(narg) ? def : lua_toboolean(L,narg);
|
|
}
|
|
|
|
TOLUA_API lua_Number tolua_tofieldnumber (lua_State* L, int lo, int index, lua_Number def)
|
|
{
|
|
double v;
|
|
lua_pushnumber(L,index);
|
|
lua_gettable(L,lo);
|
|
v = lua_isnil(L,-1) ? def : lua_tonumber(L,-1);
|
|
lua_pop(L,1);
|
|
return v;
|
|
}
|
|
|
|
TOLUA_API const char* tolua_tofieldstring
|
|
(lua_State* L, int lo, int index, const char* def)
|
|
{
|
|
const char* v;
|
|
lua_pushnumber(L,index);
|
|
lua_gettable(L,lo);
|
|
v = lua_isnil(L,-1) ? def : lua_tostring(L,-1);
|
|
lua_pop(L,1);
|
|
return v;
|
|
}
|
|
|
|
TOLUA_API void* tolua_tofielduserdata (lua_State* L, int lo, int index, void* def)
|
|
{
|
|
void* v;
|
|
lua_pushnumber(L,index);
|
|
lua_gettable(L,lo);
|
|
v = lua_isnil(L,-1) ? def : lua_touserdata(L,-1);
|
|
lua_pop(L,1);
|
|
return v;
|
|
}
|
|
|
|
TOLUA_API void* tolua_tofieldusertype (lua_State* L, int lo, int index, void* def)
|
|
{
|
|
void* v;
|
|
lua_pushnumber(L,index);
|
|
lua_gettable(L,lo);
|
|
v = lua_isnil(L,-1) ? def : (*(void **)(lua_touserdata(L, -1))); /* lua_unboxpointer(L,-1); */
|
|
lua_pop(L,1);
|
|
return v;
|
|
}
|
|
|
|
TOLUA_API int tolua_tofieldvalue (lua_State* L, int lo, int index, int def)
|
|
{
|
|
int v;
|
|
lua_pushnumber(L,index);
|
|
lua_gettable(L,lo);
|
|
v = lua_isnil(L,-1) ? def : lo;
|
|
lua_pop(L,1);
|
|
return v;
|
|
}
|
|
|
|
TOLUA_API int tolua_getfieldboolean (lua_State* L, int lo, int index, int def)
|
|
{
|
|
int v;
|
|
lua_pushnumber(L,index);
|
|
lua_gettable(L,lo);
|
|
v = lua_isnil(L,-1) ? 0 : lua_toboolean(L,-1);
|
|
lua_pop(L,1);
|
|
return v;
|
|
}
|