52   CONCAT        = 0,  enumerator
106   assert(tag == CONCAT);  in concat()
111   assert(tag == CONCAT);  in concat()
261   if (node->tag != CONCAT) {  in IsRootBalanced()
325     if (rep->tag == CONCAT) {  in UnrefInternal()
391   if (rep->tag == CONCAT) {  in Depth()
422   rep->tag = CONCAT;  in RawConcat()
605   while (dst->tag == CONCAT && dst->refcount.IsOne()) {  in PrepareAppendRegion()
923   while (node->tag == CONCAT) {  in RemovePrefixFrom()
965   while (node->tag == CONCAT) {  in RemoveSuffixFrom()
1060     } else if (node->tag != CONCAT) {  in NewSubRange()
1128       if (ABSL_PREDICT_FALSE(node->tag != CONCAT)) {  in Build()
1222     if (node->tag == CONCAT) {  in CheckNode()
1242   assert(node->tag == CONCAT);  in Rebalance()
1310   while (node->tag == CONCAT) {  in FindFlatStartPiece()
1525   while (node->tag == CONCAT) {  in operator ++()
1624   while (node->tag == CONCAT) {  in AdvanceAndReadBytes()
1688   while (node->tag == CONCAT) {  in AdvanceBytesSlowPath()
1734     } else if (rep->tag == CONCAT) {  in operator []()
1812     if (current_node->tag == CONCAT) {  in ForEachChunkAux()
1859     if (rep->tag == CONCAT) {  in DumpNode()
1911     if (node->tag == CONCAT) {  in VerifyNode()
1958     if (cur_node->tag == CONCAT) {  in MemoryUsageAux()