Method put_change

atomic-core/src/pristine/txn/write/mod.rs:1080–1121

(
        &mut self,
        view: &mut ViewState,
        change_id: NodeId,
        change_hash: &Hash,
    )

    }

    fn put_change(
        &mut self,
        view: &mut ViewState,
        change_id: NodeId,
        change_hash: &Hash,
    ) -> PristineResult<u64> {
        let seq = view.change_count;

        // Add to change log
        {
            let mut table = self.txn.open_table(VIEW_CHANGES)?;
            let key = encode_view_seq(view.id, seq);
            table.insert(&key, change_id.get())?;
        }

        // Add reverse mapping
        {
            let mut table = self.txn.open_table(REV_VIEW_CHANGES)?;
            let key = encode_view_seq(view.id, change_id.get());
            table.insert(&key, seq)?;
        }

        // Update merkle state
        view.state = view.state.next(change_hash);
        view.change_count += 1;

        // Store the merkle state at this sequence
        {
            let mut table = self.txn.open_table(MERKLE_CHAIN)?;
            let key = encode_view_seq(view.id, seq);
            table.insert(&key, view.state.as_bytes())?;
        }

        // Store state -> sequence mapping
        {
            let mut table = self.txn.open_table(STATES)?;
            let key = encode_view_merkle(view.id, view.state.as_bytes());
            table.insert(&key, seq)?;
        }

        Ok(seq)
    }

    fn del_change(
        &mut self,