Trait reth_node_builder::PayloadBuilderAttributes

pub trait PayloadBuilderAttributes: Send + Sync + Debug {
    type RpcPayloadAttributes;
    type Error: Error;

    // Required methods
    fn try_new(
        parent: FixedBytes<32>,
        rpc_payload_attributes: Self::RpcPayloadAttributes
    ) -> Result<Self, Self::Error>
       where Self: Sized;
    fn payload_id(&self) -> PayloadId;
    fn parent(&self) -> FixedBytes<32>;
    fn timestamp(&self) -> u64;
    fn parent_beacon_block_root(&self) -> Option<FixedBytes<32>>;
    fn suggested_fee_recipient(&self) -> Address;
    fn prev_randao(&self) -> FixedBytes<32>;
    fn withdrawals(&self) -> &Withdrawals;
    fn cfg_and_block_env(
        &self,
        chain_spec: &ChainSpec,
        parent: &Header
    ) -> (CfgEnvWithHandlerCfg, BlockEnv);
}

This can be implemented by types that describe a currently running payload job.

This is used as a conversion type, transforming a payload attributes type that the engine API receives, into a type that the payload builder can use.

Required Associated Types

type RpcPayloadAttributes

The payload attributes that can be used to construct this type. Used as the argument in PayloadBuilderAttributes::try_new.

type Error: Error

The error type used in PayloadBuilderAttributes::try_new.

Required Methods

fn try_new( parent: FixedBytes<32>, rpc_payload_attributes: Self::RpcPayloadAttributes ) -> Result<Self, Self::Error>

where Self: Sized,

Creates a new payload builder for the given parent block and the attributes.

Derives the unique [PayloadId] for the given parent and attributes

fn payload_id(&self) -> PayloadId

Returns the [PayloadId] for the running payload job.

fn parent(&self) -> FixedBytes<32>

Returns the parent block hash for the running payload job.

fn timestamp(&self) -> u64

Returns the timestamp for the running payload job.

fn parent_beacon_block_root(&self) -> Option<FixedBytes<32>>

Returns the parent beacon block root for the running payload job, if it exists.

fn suggested_fee_recipient(&self) -> Address

Returns the suggested fee recipient for the running payload job.

fn prev_randao(&self) -> FixedBytes<32>

Returns the prevrandao field for the running payload job.

fn withdrawals(&self) -> &Withdrawals

Returns the withdrawals for the running payload job.

fn cfg_and_block_env( &self, chain_spec: &ChainSpec, parent: &Header ) -> (CfgEnvWithHandlerCfg, BlockEnv)

Returns the configured [CfgEnvWithHandlerCfg] and [BlockEnv] for the targeted payload (that has the parent as its parent).

The chain_spec is used to determine the correct chain id and hardfork for the payload based on its timestamp.

Block related settings are derived from the parent block and the configured attributes.

NOTE: This is only intended for beacon consensus (after merge).

Implementations on Foreign Types

impl PayloadBuilderAttributes for EthPayloadBuilderAttributes

fn try_new( parent: FixedBytes<32>, attributes: PayloadAttributes ) -> Result<EthPayloadBuilderAttributes, Infallible>

Creates a new payload builder for the given parent block and the attributes.

Derives the unique [PayloadId] for the given parent and attributes

type RpcPayloadAttributes = PayloadAttributes

type Error = Infallible

fn payload_id(&self) -> PayloadId

fn parent(&self) -> FixedBytes<32>

fn timestamp(&self) -> u64

fn parent_beacon_block_root(&self) -> Option<FixedBytes<32>>

fn suggested_fee_recipient(&self) -> Address

fn prev_randao(&self) -> FixedBytes<32>

fn withdrawals(&self) -> &Withdrawals

fn cfg_and_block_env( &self, chain_spec: &ChainSpec, parent: &Header ) -> (CfgEnvWithHandlerCfg, BlockEnv)

Implementors