Function Set

libapp2sys/prebuilt/include/google/protobuf/reflection.h:405–416

  template<typename T, typename ValueType>
  void Set(Field* data, int index, const ValueType& value) const {
    typedef typename RefTypeTraits<T>::AccessorValueType ActualType;
    // In this RepeatedFieldAccessor interface we pass/return data using
    // raw pointers. Type of the data these raw pointers point to should
    // be ActualType. Here we have a ValueType object and want a ActualType
    // pointer. We can't cast a ValueType pointer to an ActualType pointer
    // directly because their type might be different (for enums ValueType
    // may be a generated enum type while ActualType is int32). To be safe
    // we make a copy to get a temporary ActualType object and use it.
    ActualType tmp = static_cast<ActualType>(value);
    Set(data, index, static_cast<const Value*>(&tmp));
  }

  template<typename T, typename ValueType>
  void Add(Field* data, const ValueType& value) const {