Function lpb_checkview

Plugins/UnLuaExtensions/LuaProtobuf/Source/src/pb.cpp:888–897

}

static pb_Slice lpb_checkview(lua_State *L, int idx, pb_Slice *ps) {
    pb_Slice src = lpb_checkslice(L, idx);
    lua_Integer r[2] = {1, -1}, range = rangerelat(L, idx+1, r, pb_len(src));
    pb_Slice ret;
    if (ps) *ps = src, ps->start = src.p;
    ret.p     = src.p + r[0] - 1;
    ret.end   = ret.p + range;
    ret.start = src.p;
    return ret;
}

static void lpb_enterview(lua_State *L, lpb_Slice *s, pb_Slice view) {
    if (s->used >= s->size) {