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/* tolua: register functions
** Support code for Lua bindings.
** Written by Waldemar Celes
** TeCGraf/PUC-Rio
** Jul 1998
** $Id: tolua_rg.c,v 1.2 2001/11/26 23:00:27 darkgod Exp $
*/
/* 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 <stdio.h>
#include "tolua.h"
#include "tolua_rg.h"
#include "tolua_tm.h"
#include "tolua_tt.h"
void tolua_globalvar (lua_State* L, char* name, lua_CFunction get, lua_CFunction set)
{
lua_newtable(L);
lua_pushstring(L,".get");
lua_pushcfunction(L,get);
lua_settable(L,-3);
if (set)
{
lua_pushstring(L,".set");
lua_pushcfunction(L,set);
lua_settable(L,-3);
}
lua_pushvalue(L,-1); /* duplicate top */
lua_setglobal(L,name);
toluaI_tm_global(L,lua_gettop(L));
lua_pop(L,1);
}
static int toluaI_const_global_array (lua_State* L)
{
lua_error(L,"value of const array cannot be changed");
return 0;
}
void tolua_globalarray (lua_State* L,char* name, lua_CFunction get, lua_CFunction set)
{
int tag = lua_newtag(L);
lua_newtable(L);
lua_settag(L,tag);
lua_setglobal(L,name);
lua_pushcfunction(L,get);
lua_settagmethod(L,tag,"gettable");
if (set)
lua_pushcfunction(L,set);
else
lua_pushcfunction(L,toluaI_const_global_array);
lua_settagmethod(L,tag,"settable");
}
void tolua_tablevar
(lua_State* L, char* table, char* name, lua_CFunction get, lua_CFunction set)
{
lua_getglobal(L,table);
lua_pushstring(L,".get");
lua_gettable(L,-2);
lua_pushstring(L,name);
lua_pushcfunction(L,get);
lua_settable(L,-3);
lua_pop(L,1);
if (set)
{
lua_pushstring(L,".set");
lua_gettable(L,-2);
lua_pushstring(L,name);
lua_pushcfunction(L,set);
lua_settable(L,-3);
lua_pop(L,1);
}
lua_pop(L,1);
}
static int toluaI_get_array (lua_State* L)
{
void* self = tolua_getuserdata(L,1,0);
const char* field = tolua_getstring(L,2,0);
if (!field)
tolua_error(L,"invalid 'field' in accessing array");
if (!self)
{
static char msg[BUFSIZ];
sprintf(msg,"invalid 'self' in accessing array '%s'",field);
tolua_error(L,msg);
}
toluaI_getregistry(L,"tolua_tbl_itype");
lua_pushnumber(L,lua_tag(L,1));
lua_gettable(L,-2);
lua_getglobal(L,lua_tostring(L,-1));
lua_pushstring(L,".array");
lua_gettable(L,-2);
lua_pushvalue(L,2); /* field */
lua_gettable(L,-2);
lua_pushstring(L,".self");
lua_pushvalue(L,1); /* self */
lua_rawset(L,-3);
return 1;
}
static int toluaI_const_array (lua_State* L)
{
lua_error(L,"value of const field cannot be changed");
return 0;
}
void tolua_tablearray
(lua_State* L, char* table, char* name, lua_CFunction get, lua_CFunction set)
{
int tag = lua_newtag(L);
lua_getglobal(L,table);
lua_pushstring(L,".array");
lua_rawget(L,-2);
lua_pushstring(L,name);
lua_newtable(L);
lua_settag(L,tag);
lua_settable(L,-3);
lua_pop(L,2);
lua_pushcfunction(L,get);
lua_settagmethod(L,tag,"gettable");
if (set)
lua_pushcfunction(L,set);
else
lua_pushcfunction(L,toluaI_const_array);
lua_settagmethod(L,tag,"settable");
tolua_tablevar(L,table,name,toluaI_get_array,NULL);
}
void tolua_module (lua_State* L, char* name)
{
lua_getglobal(L,name);
if (!lua_istable(L,-1))
{
lua_newtable(L);
lua_pushstring(L,".get");
lua_newtable(L);
lua_settable(L,-3);
lua_pushstring(L,".set");
lua_newtable(L);
lua_settable(L,-3);
lua_pushvalue(L,-1); /* duplicate top */
lua_setglobal(L,name);
toluaI_tm_module(L,lua_gettop(L));
lua_pop(L,1);
}
lua_pop(L,1);
}
void tolua_cclass (lua_State* L, char* name, char* base)
{
int t;
lua_newtable(L);
lua_pushstring(L,".get");
lua_newtable(L);
lua_settable(L,-3);
lua_pushstring(L,".set");
lua_newtable(L);
lua_settable(L,-3);
lua_pushstring(L,".array");
lua_newtable(L);
lua_settable(L,-3);
if (*base != 0)
{
lua_pushstring(L,".base");
lua_getglobal(L,base);
lua_rawset(L,-3);
}
lua_pushvalue(L,-1); /* duplicate top */
lua_setglobal(L,name);
t = lua_gettop(L);
toluaI_tm_class(L,t,name);
toluaI_tt_class(L,t,name,base);
lua_pop(L,1);
}
void tolua_function (lua_State* L, char* parent, char* name, lua_CFunction func)
{
if (parent==NULL)
{
lua_pushcfunction(L,func);
lua_setglobal(L,name);
}
else
{
lua_getglobal(L,parent);
lua_pushstring(L,name);
lua_pushcfunction(L,func);
lua_settable(L,-3);
lua_pop(L,1);
}
}
void tolua_constant (lua_State* L, char* parent, char* name, long value)
{
if (parent==NULL)
{
lua_pushnumber(L,value);
lua_setglobal(L,name);
}
else
{
lua_getglobal(L,parent);
lua_pushstring(L,name);
lua_pushnumber(L,value);
lua_settable(L,-3);
lua_pop(L,1);
}
}
void toluaI_setregistry (lua_State* L, char* field)
{
lua_getregistry(L);
lua_insert(L,-2);
lua_pushstring(L,field);
lua_insert(L,-2);
lua_settable(L,-3);
lua_pop(L,1);
}
void toluaI_getregistry (lua_State* L, char* field)
{
lua_getregistry(L);
lua_pushstring(L,field);
lua_gettable(L,-2);
lua_insert(L,-2);
lua_pop(L,1);
}
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