free function serialization DSL

[jeffro256]

Useful for PR #25

[jeffro256]

Example usage (replacing serialization_demo_utils):

BLOB_SERIALIZER(sp::jamtis::address_index_t);
BLOB_SERIALIZER(sp::jamtis::address_tag_t);
BLOB_SERIALIZER(sp::jamtis::encrypted_address_tag_t);
BLOB_SERIALIZER(sp::jamtis::encoded_amount_t);

BEGIN_SERIALIZE_OBJECT_FN(sp::SpCoinbaseEnoteCore)
    FIELD_F(onetime_address)
    VARINT_FIELD_F(amount)
END_SERIALIZE()

BEGIN_SERIALIZE_OBJECT_FN(sp::SpEnoteCore)
    FIELD_F(onetime_address)
    FIELD_F(amount_commitment)
END_SERIALIZE()

BEGIN_SERIALIZE_OBJECT_FN(sp::SpEnoteImageCore)
    FIELD_F(masked_address)
    FIELD_F(masked_commitment)
    FIELD_F(key_image)
END_SERIALIZE()

BEGIN_SERIALIZE_OBJECT_FN(sp::SpEnoteImageCore)
    FIELD_F(masked_address)
    FIELD_F(masked_commitment)
    FIELD_F(key_image)
END_SERIALIZE()

BEGIN_SERIALIZE_OBJECT_FN(sp::BulletproofPlus2)
    FIELD_F(A)
    FIELD_F(A1)
    FIELD_F(B)
    FIELD_F(r1)
    FIELD_F(s1)
    FIELD_F(d1)
    FIELD_F(L)
    FIELD_F(R)
END_SERIALIZE()

... continue pattern here 

We can serialize directly from seraphis types non-intrusively and don't need all the extra types and boilerplate eventually

[DangerousFreedom1984]

That should make things much easier. Thanks.

[UkoeHB]

You should parallel-PR this to the monero repo.

[UkoeHB]

@vtnerd can you review this?

[vtnerd]

I don't understand what this does, other than it allows the macro to be used outside of a class scope. Presumably that is the goal here?

[jeffro256]

Yes, that's the current design goal with the Seraphis lib AFAIK: separate class definitions and their serialization.

[vtnerd]

I agree that the comment needs some fixing - the goal is to allow a standalone function in a cpp or something? Difficult to say without any example uses.

[jeffro256]

There's some sample uses in an earlier comment in this thread. Should I put it into the code?

[jeffro256]

Fixed comments, thanks @UkoeHB