Compute Block Cid about forest

[dutterbutter]

Sorry, I should have been much clearer...I have a skeleton of this completed in my current branch that returns a CID from prefix with default values. CBOR encoding is still required and incomplete.

pub fn cid(mut self) -> cid::Cid {
        let c = Prefix {
            version: Version::V0,
            codec: Codec::DagProtobuf,
            mh_type: DEFAULT_HASH_FUNCTION,
            mh_len: 0,
        };
        let new_cid = cid::Cid::new_from_prefix(&c, &[self.cached_bytes]);
        self.cached_cid = new_cid;
        self.cached_cid
    }

[dutterbutter]

I have this implemented in my latest branch as it required for fn new to return a new tipset.

[austinabell]

I have this implemented in my latest branch as it required for fn new to return a new tipset.

How are you doing the cbor encoding of the block? Is this branch available?

[ansermino]

Closing in favour of #46