Trait Host

pub trait Host: ContextTr {
    // Provided methods
    fn set_error(&mut self, error: <Self::Db as Database>::Error) { ... }
    fn block_hash(&mut self, requested_number: u64) -> Option<B256> { ... }
    fn load_account_delegated(
        &mut self,
        address: Address,
    ) -> Option<StateLoad<AccountLoad>> { ... }
    fn balance(&mut self, address: Address) -> Option<StateLoad<U256>> { ... }
    fn code(&mut self, address: Address) -> Option<StateLoad<Bytes>> { ... }
    fn code_hash(&mut self, address: Address) -> Option<StateLoad<B256>> { ... }
    fn sload(
        &mut self,
        address: Address,
        index: U256,
    ) -> Option<StateLoad<U256>> { ... }
    fn sstore(
        &mut self,
        address: Address,
        index: U256,
        value: U256,
    ) -> Option<StateLoad<SStoreResult>> { ... }
    fn tload(&mut self, address: Address, index: U256) -> U256 { ... }
    fn tstore(&mut self, address: Address, index: U256, value: U256) { ... }
    fn log(&mut self, log: Log) { ... }
    fn selfdestruct(
        &mut self,
        address: Address,
        target: Address,
    ) -> Option<StateLoad<SelfDestructResult>> { ... }
}

EVM context host.

Provided Methods

fn set_error(&mut self, error: <Self::Db as Database>::Error)

fn block_hash(&mut self, requested_number: u64) -> Option<B256>

Gets the block hash of the given block number.

fn load_account_delegated( &mut self, address: Address, ) -> Option<StateLoad<AccountLoad>>

fn balance(&mut self, address: Address) -> Option<StateLoad<U256>>

Gets balance of address and if the account is cold.

fn code(&mut self, address: Address) -> Option<StateLoad<Bytes>>

Gets code of address and if the account is cold.

fn code_hash(&mut self, address: Address) -> Option<StateLoad<B256>>

Gets code hash of address and if the account is cold.

fn sload(&mut self, address: Address, index: U256) -> Option<StateLoad<U256>>

Gets storage value of address at index and if the account is cold.

fn sstore( &mut self, address: Address, index: U256, value: U256, ) -> Option<StateLoad<SStoreResult>>

Sets storage value of account address at index.

Returns StateLoad with SStoreResult that contains original/new/old storage value.

fn tload(&mut self, address: Address, index: U256) -> U256

Gets the transient storage value of address at index.

fn tstore(&mut self, address: Address, index: U256, value: U256)

Sets the transient storage value of address at index.

fn log(&mut self, log: Log)

Emits a log owned by address with given LogData.

fn selfdestruct( &mut self, address: Address, target: Address, ) -> Option<StateLoad<SelfDestructResult>>

Marks address to be deleted, with funds transferred to target.

Implementors

impl<T: ContextTr> Host for T