/* Class index function
* If the object is a userdata (ie, an object), it searches the field in
* the alternative table stored in the corresponding "ubox" table.
*/
static int class_index_event (lua_State* L)
{
int t = lua_type(L,1);
if (t == LUA_TUSERDATA)
{
/* Access alternative table */
#ifdef LUA_VERSION_NUM /* new macro on version 5.1 */
lua_getfenv(L,1);
if (!lua_rawequal(L, -1, TOLUA_NOPEER)) {
lua_pushvalue(L, 2); /* key */
lua_gettable(L, -2); /* on lua 5.1, we trade the "tolua_peers" lookup for a gettable call */
if (!lua_isnil(L, -1))
return 1;
};
#else
lua_pushstring(L,"tolua_peers");
lua_rawget(L,LUA_REGISTRYINDEX); /* stack: obj key ubox */
lua_pushvalue(L,1);
lua_rawget(L,-2); /* stack: obj key ubox ubox[u] */
if (lua_istable(L,-1))
{
lua_pushvalue(L,2); /* key */
lua_rawget(L,-2); /* stack: obj key ubox ubox[u] value */
if (!lua_isnil(L,-1))
return 1;
}
#endif
lua_settop(L,2); /* stack: obj key */
/* Try metatables */
lua_pushvalue(L,1); /* stack: obj key obj */
while (lua_getmetatable(L,-1))
{ /* stack: obj key obj mt */
lua_remove(L,-2); /* stack: obj key mt */
if (lua_isnumber(L,2)) /* check if key is a numeric value */
{
/* try operator[] */
lua_pushstring(L,".geti");
lua_rawget(L,-2); /* stack: obj key mt func */
if (lua_isfunction(L,-1))
{
lua_pushvalue(L,1);
lua_pushvalue(L,2);
lua_call(L,2,1);
return 1;
}
}
else
{
lua_pushvalue(L,2); /* stack: obj key mt key */
lua_rawget(L,-2); /* stack: obj key mt value */
if (!lua_isnil(L,-1))
return 1;
else
lua_pop(L,1);
/* try C/C++ variable */
lua_pushstring(L,".get");
lua_rawget(L,-2); /* stack: obj key mt tget */
if (lua_istable(L,-1))
{
lua_pushvalue(L,2);
lua_rawget(L,-2); /* stack: obj key mt value */
if (lua_iscfunction(L,-1))
{
lua_pushvalue(L,1);
lua_pushvalue(L,2);
lua_call(L,2,1);
return 1;
}
else if (lua_istable(L,-1))
{
/* deal with array: create table to be returned and cache it in ubox */
void* u = *((void**)lua_touserdata(L,1));
lua_newtable(L); /* stack: obj key mt value table */
lua_pushstring(L,".self");
lua_pushlightuserdata(L,u);
lua_rawset(L,-3); /* store usertype in ".self" */
lua_insert(L,-2); /* stack: obj key mt table value */
lua_setmetatable(L,-2); /* set stored value as metatable */
lua_pushvalue(L,-1); /* stack: obj key met table table */
lua_pushvalue(L,2); /* stack: obj key mt table table key */
lua_insert(L,-2); /* stack: obj key mt table key table */
storeatubox(L,1); /* stack: obj key mt table */
return 1;
}
}
}
lua_settop(L,3);
}
lua_pushnil(L);
return 1;
}
else if (t== LUA_TTABLE)
{
module_index_event(L);
return 1;
}
lua_pushnil(L);
return 1;
}
/* Class index function
* If the object is a userdata (ie, an object), it searches the field in
* the alternative table stored in the corresponding "peer" table.
*/
static int class_index_event (lua_State* L)
{
int t = lua_type(L,1);
if (t == LUA_TUSERDATA)
{
/* Access alternative table */
lua_pushstring(L,"tolua_peer");
lua_rawget(L,LUA_REGISTRYINDEX); /* stack: obj key peer */
lua_pushvalue(L,1);
lua_rawget(L,-2); /* stack: obj key peer peer[u] */
if (lua_istable(L,-1))
{
lua_pushvalue(L,2); /* key */
lua_rawget(L,-2); /* stack: obj key peer peer[u] value */
if (!lua_isnil(L,-1))
return 1;
}
lua_settop(L,2); /* stack: obj key */
/* Try metatables */
lua_pushvalue(L,1); /* stack: obj key obj */
while (lua_getmetatable(L,-1))
{ /* stack: obj key obj mt */
lua_remove(L,-2); /* stack: obj key mt */
if (lua_isnumber(L,2)) /* check if key is a numeric value */
{
/* try operator[] */
lua_pushstring(L,".geti");
lua_rawget(L,-2); /* stack: obj key mt func */
if (lua_isfunction(L,-1))
{
lua_pushvalue(L,1);
lua_pushvalue(L,2);
lua_call(L,2,1);
return 1;
}
}
else
{
lua_pushvalue(L,2); /* stack: obj key mt key */
lua_rawget(L,-2); /* stack: obj key mt value */
if (!lua_isnil(L,-1))
return 1;
else
lua_pop(L,1);
/* try C/C++ variable */
lua_pushstring(L,".get");
lua_rawget(L,-2); /* stack: obj key mt tget */
if (lua_istable(L,-1))
{
lua_pushvalue(L,2);
lua_rawget(L,-2); /* stack: obj key mt value */
if (lua_iscfunction(L,-1))
{
lua_pushvalue(L,1);
lua_pushvalue(L,2);
lua_call(L,2,1);
return 1;
}
else if (lua_istable(L,-1))
{
/* deal with array: create table to be returned and cache it in peer */
void* u = *((void**)lua_touserdata(L,1));
lua_newtable(L); /* stack: obj key mt value table */
lua_pushstring(L,".self");
lua_pushlightuserdata(L,u);
lua_rawset(L,-3); /* store usertype in ".self" */
lua_insert(L,-2); /* stack: obj key mt table value */
lua_setmetatable(L,-2); /* set stored value as metatable */
lua_pushvalue(L,-1); /* stack: obj key met table table */
lua_pushvalue(L,2); /* stack: obj key mt table table key */
lua_insert(L,-2); /* stack: obj key mt table key table */
storeatpeer(L,1); /* stack: obj key mt table */
return 1;
}
}
}
lua_settop(L,3);
}
lua_pushnil(L);
return 1;
}
else if (t== LUA_TTABLE)
{
module_index_event(L);
return 1;
}
lua_pushnil(L);
return 1;
}
