Function DebugString

paddle/fluid/imperative/layer.cc:82–139

template <typename VarType>
static std::string DebugString(
    const std::string& name,
    const std::vector<std::shared_ptr<VarType>>& vars) {
  std::stringstream ss;
  ss << name << "{";

  for (size_t i = 0; i < vars.size(); ++i) {
    if (i > 0) ss << ", ";

    if (vars[i] == nullptr) {
      ss << "NULL";
      continue;
    }
    ss << GetNameFromVar(vars[i]) << "[";
    const framework::Variable& var = vars[i]->Var();
    if (!var.IsInitialized()) {
      ss << "NOT_INITED_VAR";
    } else if (var.IsType<DenseTensor>()) {
      auto& tensor = var.Get<DenseTensor>();
      ss << "DenseTensor<";
      if (tensor.IsInitialized()) {
        ss << framework::DataTypeToString(
                  framework::TransToProtoVarType(tensor.dtype()))
           << ", ";
        ss << tensor.place() << ", ";
        ss << "(" << tensor.dims() << ")";
      } else {
        ss << "NOT_INITED";
      }
      ss << ">";
    } else if (var.IsType<phi::SelectedRows>()) {
      ss << "SelectedRows<";
      auto& selected_rows = var.Get<phi::SelectedRows>();
      auto& tensor = selected_rows.value();
      auto& rows = selected_rows.rows();
      if (tensor.IsInitialized()) {
        ss << framework::DataTypeToString(
                  framework::TransToProtoVarType(tensor.dtype()))
           << ", ";
        ss << tensor.place() << ", ";
        ss << "height(" << selected_rows.height() << "), rows(";
        std::for_each(rows.cbegin(), rows.cend(), [&ss](const int64_t r) {
          ss << r << " ";
        });
        ss << "), dims(" << tensor.dims() << ")";
      } else {
        ss << "NOT_INITED";
      }
      ss << ">";
    } else {
      ss << "UNRESOLVED_TYPE";
    }
    ss << "]";
  }

  ss << "}";
  return ss.str();
}