Trait Consensus 

pub trait Consensus<B>: HeaderValidator<<B as Block>::Header>
where
    B: Block,
{
    type Error;

    // Required methods
    fn validate_body_against_header(
        &self,
        body: &<B as Block>::Body,
        header: &SealedHeader<<B as Block>::Header>,
    ) -> Result<(), Self::Error>;
    fn validate_block_pre_execution(
        &self,
        block: &SealedBlock<B>,
    ) -> Result<(), Self::Error>;
}

Consensus is a protocol that chooses canonical chain.

Required Associated Types

type Error

The error type related to consensus.

Required Methods

fn validate_body_against_header( &self, body: &<B as Block>::Body, header: &SealedHeader<<B as Block>::Header>, ) -> Result<(), Self::Error>

Ensures that body field values match the header.

fn validate_block_pre_execution( &self, block: &SealedBlock<B>, ) -> Result<(), Self::Error>

Validate a block disregarding world state, i.e. things that can be checked before sender recovery and execution.

See the Yellow Paper sections 4.4.2 “Holistic Validity”, 4.4.4 “Block Header Validity”. Note: Ommer Validation (previously section 11.1) has been deprecated since the Paris hard fork transition to proof of stake.

This should not be called for the genesis block.

Note: validating blocks does not include other validations of the Consensus

Implementations on Foreign Types

impl<'a, B, T> Consensus<B> for &'a T

where B: Block, T: 'a + Consensus<B> + ?Sized, &'a T: HeaderValidator<<B as Block>::Header>,

type Error = <T as Consensus<B>>::Error

fn validate_body_against_header( &self, body: &<B as Block>::Body, header: &SealedHeader<<B as Block>::Header>, ) -> Result<(), <&'a T as Consensus<B>>::Error>

fn validate_block_pre_execution( &self, block: &SealedBlock<B>, ) -> Result<(), <&'a T as Consensus<B>>::Error>

impl<B, T> Consensus<B> for Arc<T>

where B: Block, T: Consensus<B> + ?Sized, Arc<T>: HeaderValidator<<B as Block>::Header>,

type Error = <T as Consensus<B>>::Error

fn validate_body_against_header( &self, body: &<B as Block>::Body, header: &SealedHeader<<B as Block>::Header>, ) -> Result<(), <Arc<T> as Consensus<B>>::Error>

fn validate_block_pre_execution( &self, block: &SealedBlock<B>, ) -> Result<(), <Arc<T> as Consensus<B>>::Error>

Implementors

impl<B> Consensus<B> for NoopConsensus

where B: Block,

type Error = ConsensusError

impl<B> Consensus<B> for TestConsensus

where B: Block,

type Error = ConsensusError

impl<B, ChainSpec> Consensus<B> for EthBeaconConsensus<ChainSpec>

where B: Block, ChainSpec: EthChainSpec<Header = <B as Block>::Header> + EthereumHardforks + Debug + Send + Sync,

type Error = ConsensusError