Trait Backend

pub trait Backend {
    // Required methods
    fn gas_price(&self) -> U256;
    fn origin(&self) -> H160;
    fn block_hash(&self, number: U256) -> H256;
    fn block_number(&self) -> U256;
    fn block_coinbase(&self) -> H160;
    fn block_timestamp(&self) -> U256;
    fn block_difficulty(&self) -> U256;
    fn block_randomness(&self) -> Option<H256>;
    fn block_gas_limit(&self) -> U256;
    fn block_base_fee_per_gas(&self) -> U256;
    fn chain_id(&self) -> U256;
    fn exists(&self, address: H160) -> bool;
    fn basic(&self, address: H160) -> Basic;
    fn code(&self, address: H160) -> Vec<u8> ;
    fn storage(&self, address: H160, index: H256) -> H256;
    fn transient_storage(&self, address: H160, index: H256) -> H256;
    fn original_storage(&self, address: H160, index: H256) -> Option<H256>;
}

EVM backend.

Required Methods

fn gas_price(&self) -> U256

Gas price. Unused for London.

fn origin(&self) -> H160

Origin.

fn block_hash(&self, number: U256) -> H256

Environmental block hash.

fn block_number(&self) -> U256

Environmental block number.

fn block_coinbase(&self) -> H160

Environmental coinbase.

fn block_timestamp(&self) -> U256

Environmental block timestamp.

fn block_difficulty(&self) -> U256

Environmental block difficulty.

fn block_randomness(&self) -> Option<H256>

Get environmental block randomness.

fn block_gas_limit(&self) -> U256

Environmental block gas limit.

fn block_base_fee_per_gas(&self) -> U256

Environmental block base fee.

fn chain_id(&self) -> U256

Environmental chain ID.

fn exists(&self, address: H160) -> bool

Whether account at address exists.

fn basic(&self, address: H160) -> Basic

Get basic account information.

fn code(&self, address: H160) -> Vec<u8>

Get account code.

fn storage(&self, address: H160, index: H256) -> H256

Get storage value of address at index.

fn transient_storage(&self, address: H160, index: H256) -> H256

Get transient storage value of address at index.

fn original_storage(&self, address: H160, index: H256) -> Option<H256>

Get original storage value of address at index, if available.

Implementations on Foreign Types

impl<'a, T: 'a + Backend + ?Sized> Backend for &'a T

fn gas_price(&self) -> U256

fn origin(&self) -> H160

fn block_hash(&self, number: U256) -> H256

fn block_number(&self) -> U256

fn block_coinbase(&self) -> H160

fn block_timestamp(&self) -> U256

fn block_difficulty(&self) -> U256

fn block_randomness(&self) -> Option<H256>

fn block_gas_limit(&self) -> U256

fn block_base_fee_per_gas(&self) -> U256

fn chain_id(&self) -> U256

fn exists(&self, address: H160) -> bool

fn basic(&self, address: H160) -> Basic

fn code(&self, address: H160) -> Vec<u8>

fn storage(&self, address: H160, index: H256) -> H256

fn transient_storage(&self, address: H160, index: H256) -> H256

fn original_storage(&self, address: H160, index: H256) -> Option<H256>

impl<T: Backend + ?Sized> Backend for Box<T>

fn gas_price(&self) -> U256

fn origin(&self) -> H160

fn block_hash(&self, number: U256) -> H256

fn block_number(&self) -> U256

fn block_coinbase(&self) -> H160

fn block_timestamp(&self) -> U256

fn block_difficulty(&self) -> U256

fn block_randomness(&self) -> Option<H256>

fn block_gas_limit(&self) -> U256

fn block_base_fee_per_gas(&self) -> U256

fn chain_id(&self) -> U256

fn exists(&self, address: H160) -> bool

fn basic(&self, address: H160) -> Basic

fn code(&self, address: H160) -> Vec<u8>

fn storage(&self, address: H160, index: H256) -> H256

fn transient_storage(&self, address: H160, index: H256) -> H256

fn original_storage(&self, address: H160, index: H256) -> Option<H256>

impl<T: Backend + ?Sized> Backend for Arc<T>

fn gas_price(&self) -> U256

fn origin(&self) -> H160

fn block_hash(&self, number: U256) -> H256

fn block_number(&self) -> U256

fn block_coinbase(&self) -> H160

fn block_timestamp(&self) -> U256

fn block_difficulty(&self) -> U256

fn block_randomness(&self) -> Option<H256>

fn block_gas_limit(&self) -> U256

fn block_base_fee_per_gas(&self) -> U256

fn chain_id(&self) -> U256

fn exists(&self, address: H160) -> bool

fn basic(&self, address: H160) -> Basic

fn code(&self, address: H160) -> Vec<u8>

fn storage(&self, address: H160, index: H256) -> H256

fn transient_storage(&self, address: H160, index: H256) -> H256

fn original_storage(&self, address: H160, index: H256) -> Option<H256>

Implementors

impl Backend for MemoryBackend<'_>

impl<B: Backend> Backend for MemoryStackState<'_, '_, B>