In the C++ MessageLite class, SerializeToArray calls ByteSize (Protobuf
implementation) to determine what size is required to write to buffer. It
then writes to the buffer using this size but only returns true if it was
successful. Maybe it would be a better idea to return the size written to
buffer (using 0 if unsuccessful). Under the current implementation we must
call ByteSize twice, which is an expensive operation. Once to write to
buffer and a second time on the client side to determine the size for
If anyone has any reasoning behind the current design or alternative
solutions please let me know. Or if this has been raised before feel free
to leave a link. It would be great to hear your thoughts!
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