Method GetFieldByName

cpp/src/arrow/type.cc:1390–1393

}

std::shared_ptr<Field> StructType::GetFieldByName(const std::string& name) const {
  int i = GetFieldIndex(name);
  return i == -1 ? nullptr : children_[i];
}

int StructType::GetFieldIndex(const std::string& name) const {
  return LookupNameIndex(impl_->name_to_index_, name);