Method query_height

fendermint/eth/api/src/state.rs:257–274

Return the height of a block which we should send with a query, or None if it's the latest, to let the node figure it out. Adjusts the height of the query to +1 so the effects of the block is visible. The node stores the results at height+1 to be consistent with how CometBFT works, ie. the way it publishes the state hash in the *next* block. The assumption here is that the client got the height

(&self, block_id: et::BlockId)

    ///
    /// In both cases we know that there should be state stored at height + 1.
    pub async fn query_height(&self, block_id: et::BlockId) -> JsonRpcResult<FvmQueryHeight> {
        match block_id {
            et::BlockId::Number(bn) => match bn {
                // The client might be asking by height of a block, expecting to see the results.
                et::BlockNumber::Number(height) => Ok(FvmQueryHeight::from(height.as_u64() + 1)),
                et::BlockNumber::Finalized | et::BlockNumber::Latest | et::BlockNumber::Safe => {
                    Ok(FvmQueryHeight::Committed)
                }
                et::BlockNumber::Pending => Ok(FvmQueryHeight::Pending),
                et::BlockNumber::Earliest => Ok(FvmQueryHeight::Height(1)),
            },
            et::BlockId::Hash(h) => {
                // The effects of this block are saved at the next height.
                let header = self.header_by_hash(h).await?;
                Ok(FvmQueryHeight::Height(header.height.value() + 1))
            }
        }
    }

    /// Get a Tendermint block by hash, if it exists.
    pub async fn block_by_hash_opt(