363     if (!isempty(&t->array[i])) {  /* a non-empty entry? */  in luaH_next()
370     if (!isempty(gval(gnode(t, i)))) {  /* a non-empty entry? */  in luaH_next()
456       if (!isempty(&t->array[i-1]))  in numusearray()
472     if (!isempty(gval(n))) {  in numusehash()
523     if (!isempty(gval(old))) {  in reinsert()
576       if (!isempty(&t->array[i]))  in luaH_resize()
697   if (!isempty(gval(mp)) || isdummy(t)) {  /* main position is taken? */  in luaH_newkey()
731   lua_assert(isempty(gval(mp)));  in luaH_newkey()
880       if (isempty(luaH_getint(t, j)))  /* t[j] not present? */  in hash_search()
885   } while (!isempty(luaH_getint(t, j)));  /* repeat until an absent t[j] */  in hash_search()
889     if (isempty(luaH_getint(t, m))) j = m;  in hash_search()
900     if (isempty(&array[m - 1])) j = m;  in binsearch()
941   if (limit > 0 && isempty(&t->array[limit - 1])) {  /* (1)? */  in luaH_getn()
943     if (limit >= 2 && !isempty(&t->array[limit - 2])) {  in luaH_getn()
964     if (isempty(&t->array[limit]))  /* 'limit + 1' is empty? */  in luaH_getn()
968     if (isempty(&t->array[limit - 1])) {  /* empty? */  in luaH_getn()
979              (limit == 0 || !isempty(&t->array[limit - 1])));  in luaH_getn()
980   if (isdummy(t) || isempty(luaH_getint(t, cast(lua_Integer, limit + 1))))  in luaH_getn()