Function luaL_getsubtable

src/Chain/libraries/glua/lauxlib.cpp:2953–2964

** ensure that stack[idx][fname] has a table and push that table ** into the stack */

** into the stack
*/
LUALIB_API int luaL_getsubtable(lua_State *L, int idx, const char *fname) {
    if (lua_getfield(L, idx, fname) == LUA_TTABLE)
        return 1;  /* table already there */
    else {
        lua_pop(L, 1);  /* remove previous result */
        idx = lua_absindex(L, idx);
        lua_newtable(L);
        lua_pushvalue(L, -1);  /* copy to be left at top */
        lua_setfield(L, idx, fname);  /* assign new table to field */
        return 0;  /* false, because did not find table there */
    }
}


/*