Trait Consensus

Source
pub trait Consensus<B: Block>: HeaderValidator<B::Header> {
    type Error;

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

Consensus is a protocol that chooses canonical chain.

Required Associated Types§

Source

type Error

The error type related to consensus.

Required Methods§

Source

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

Ensures that body field values match the header.

Source

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 4.3.2 “Holistic Validity”, 4.3.4 “Block Header Validity”, and 11.1 “Ommer Validation”.

This should not be called for the genesis block.

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

Implementations on Foreign Types§

Source§

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

Source§

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

Source§

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

Source§

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

Source§

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

Source§

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

Source§

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

Source§

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

Implementors§

Source§

impl<B: Block> Consensus<B> for NoopConsensus

Source§

impl<B: Block> Consensus<B> for TestConsensus

Available on crate feature test-utils only.