Function GenScopeTreeDebugInfo

paddle/fluid/framework/scope.cc:276–315

}

std::string GenScopeTreeDebugInfo(Scope* root) {
  std::stringstream os;

  if (!root) return "";

  // level traversal
  std::queue<Scope*> queue;
  queue.push(root);

  std::vector<Scope*> scopes;

  while (!queue.empty()) {
    auto* end = queue.back();
    Scope* q = nullptr;
    while (q != end) {
      q = queue.front();
      queue.pop();
      os << q << " ";
      scopes.push_back(q);

      for (auto* c : q->kids()) {
        queue.push(c);
      }
    }
    // end of a level
    os << "\n------------------------------------------\n";
  }

  os << "\nDetails:\n\n";

  for (Scope* q : scopes) {
    os << "====\n";
    os << q << ":\n";
    for (auto& var : q->LocalVarNames()) {
      os << "  - " << var << "\n";
    }
  }

  return os.str();
}

}  // namespace paddle::framework