Method WritePerTargetConnections

Source/cmGraphVizWriter.cxx:347–384

template <typename DirFunc>
void cmGraphVizWriter::WritePerTargetConnections(
  ConnectionsMap const& connections, std::string const& fileNameSuffix)
{
  // the per target connections must be extended by indirect dependencies
  ConnectionsMap extendedConnections;
  for (auto const& conPerTarget : connections) {
    cmLinkItem const& rootItem = conPerTarget.first;
    Connections& extendedCons = extendedConnections[conPerTarget.first];
    this->FindAllConnections(connections, rootItem, extendedCons);
  }

  for (auto const& conPerTarget : extendedConnections) {
    cmLinkItem const& rootItem = conPerTarget.first;

    // some of the nodes are excluded completely and are not written
    if (this->ItemExcluded(rootItem)) {
      continue;
    }

    Connections const& cons = conPerTarget.second;

    std::unique_ptr<cmGeneratedFileStream> fileStream =
      this->CreateTargetFile(rootItem, fileNameSuffix);

    // avoid write same node multiple times
    std::unordered_set<std::string> writtenNodes = { rootItem.AsStr() };
    for (Connection const& con : cons) {
      cmLinkItem const& src = DirFunc::src(con);
      cmLinkItem const& dst = DirFunc::dst(con);
      if (writtenNodes.emplace(con.dst.AsStr()).second) {
        this->WriteNode(*fileStream, con.dst);
      }
      this->WriteConnection(*fileStream, src, dst, con.scopeType);
    }

    this->WriteFooter(*fileStream);
  }
}

void cmGraphVizWriter::WriteHeader(cmGeneratedFileStream& fs,
                                   std::string const& name)