Function AddPrefixes

tensorflow/core/graph/graph_constructor.cc:513–519

Adds any prefixes of `node_name` (not including the full name itself) to `prefixes`.

// Adds any prefixes of `node_name` (not including the full name itself) to
// `prefixes`.
void AddPrefixes(StringPiece node_name,
                 gtl::FlatSet<StringPiece, StringPieceHasher>* prefixes) {
  size_t idx = -1;
  while ((idx = node_name.find('/', idx + 1)) != StringPiece::npos) {
    prefixes->insert(node_name.substr(0, idx));
  }
}

Status GraphConstructor::EnsureNoNameCollisions() {
  existing_nodes_.reserve(g_->num_nodes());