Trait EvmFactory 

pub trait EvmFactory:
    Clone
    + Debug
    + Send
    + Sync
    + Unpin
    + 'static
where
    <Self::Types as EvmTypesHost>::BlockEnvExt: Send + Sync,
    <Self::Types as EvmTypesHost>::EvmExt: Default,
    <Self::Types as EvmTypesHost>::TxResultExt: Send + Sync,
{
    type Types: EvmTypes + EvmTypesHost<SpecId = Self::SpecId>;
    type SpecId: Copy + Into<SpecId> + Eq + Hash + Debug + Send + Sync + Clone + 'static;

    // Required methods
    fn spec_id(&self, spec: SpecId) -> Self::SpecId;
    fn tx_registry(
        &self,
        spec: Self::SpecId,
    ) -> TxRegistry<Self::Types, TxResult<Self::Types>>;

    // Provided methods
    fn block_env(&self, block: BlockEnv) -> BlockEnv<Self::Types> { ... }
    fn version(&self, spec: SpecId, chain_id: u64) -> Version { ... }
    fn execution_config(
        &self,
        spec: Self::SpecId,
        version: Version,
    ) -> ExecutionConfig<Self::Types> { ... }
    fn precompiles(&self, spec: Self::SpecId) -> Precompiles<Self::Types> { ... }
    fn configure_evm(&self, _evm: &mut Evm<'_, Self::Types>) { ... }
    fn precompile_cache_policy(
        &self,
        _spec: Self::SpecId,
    ) -> PrecompileCachePolicy { ... }
}

Factory used to construct an evm2-backed EVM.

Custom-node integrations can select a different evm2 transaction type through Self::Types.

Required Associated Types

type Types: EvmTypes + EvmTypesHost<SpecId = Self::SpecId>

Runtime evm2 type family used by the EVM.

type SpecId: Copy + Into<SpecId> + Eq + Hash + Debug + Send + Sync + Clone + 'static

Runtime specification identifier used by the EVM type family.

Required Methods

fn spec_id(&self, spec: SpecId) -> Self::SpecId

Maps an Ethereum hardfork to the runtime specification selected by this factory.

fn tx_registry( &self, spec: Self::SpecId, ) -> TxRegistry<Self::Types, TxResult<Self::Types>>

Builds the transaction registry for a runtime specification.

Provided Methods

fn block_env(&self, block: BlockEnv) -> BlockEnv<Self::Types>

Converts the standard Ethereum block environment into the factory’s block environment.

fn version(&self, spec: SpecId, chain_id: u64) -> Version

Returns the runtime version for an Ethereum hardfork.

fn execution_config( &self, spec: Self::SpecId, version: Version, ) -> ExecutionConfig<Self::Types>

Builds the execution configuration for a runtime specification.

fn precompiles(&self, spec: Self::SpecId) -> Precompiles<Self::Types>

Builds the precompile table for a runtime specification.

fn configure_evm(&self, _evm: &mut Evm<'_, Self::Types>)

Applies factory-specific configuration to a newly created EVM.

fn precompile_cache_policy(&self, _spec: Self::SpecId) -> PrecompileCachePolicy

Available on crate feature std only.

Selects pure precompiles eligible for shared caching. Custom factories default to uncached.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl EvmFactory for RethEvmFactory

type Types = BaseEvmTypes

type SpecId = SpecId