Trait EvmStateProvider
pub trait EvmStateProvider: Send + Sync {
// Required methods
fn basic_account(
&self,
address: Address,
) -> Result<Option<Account>, ProviderError>;
fn block_hash(
&self,
number: u64,
) -> Result<Option<FixedBytes<32>>, ProviderError>;
fn bytecode_by_hash(
&self,
code_hash: FixedBytes<32>,
) -> Result<Option<Bytecode>, ProviderError>;
fn storage(
&self,
account: Address,
storage_key: FixedBytes<32>,
) -> Result<Option<Uint<256, 4>>, ProviderError>;
}Expand description
A helper trait responsible for providing state necessary for EVM execution.
This serves as the data layer for Database.
Required Methods§
fn basic_account(
&self,
address: Address,
) -> Result<Option<Account>, ProviderError>
fn basic_account( &self, address: Address, ) -> Result<Option<Account>, ProviderError>
Get basic account information.
Returns None if the account doesn’t exist.
fn block_hash(
&self,
number: u64,
) -> Result<Option<FixedBytes<32>>, ProviderError>
fn block_hash( &self, number: u64, ) -> Result<Option<FixedBytes<32>>, ProviderError>
Get the hash of the block with the given number. Returns None if no block with this
number exists.
fn bytecode_by_hash(
&self,
code_hash: FixedBytes<32>,
) -> Result<Option<Bytecode>, ProviderError>
fn bytecode_by_hash( &self, code_hash: FixedBytes<32>, ) -> Result<Option<Bytecode>, ProviderError>
Get account code by hash.
fn storage(
&self,
account: Address,
storage_key: FixedBytes<32>,
) -> Result<Option<Uint<256, 4>>, ProviderError>
fn storage( &self, account: Address, storage_key: FixedBytes<32>, ) -> Result<Option<Uint<256, 4>>, ProviderError>
Get storage of the given account.