Struct evm::backend::MemoryBackend

pub struct MemoryBackend<'vicinity> { /* fields omitted */ }

Memory backend, storing all state values in a BTreeMap in memory.

Implementations

impl<'vicinity> MemoryBackend<'vicinity>

pub fn new(
    vicinity: &'vicinity MemoryVicinity,
    state: BTreeMap<H160, MemoryAccount>
) -> Self

Create a new memory backend.

pub fn state(&self) -> &BTreeMap<H160, MemoryAccount>

Get the underlying BTreeMap storing the state.

pub fn state_mut(&mut self) -> &mut BTreeMap<H160, MemoryAccount>

Get a mutable reference to the underlying BTreeMap storing the state.

Trait Implementations

impl<'vicinity> ApplyBackend for MemoryBackend<'vicinity>

fn apply<A, I, L>(&mut self, values: A, logs: L, delete_empty: bool) where
    A: IntoIterator<Item = Apply<I>>,
    I: IntoIterator<Item = (H256, H256)>,
    L: IntoIterator<Item = Log>, 

Apply given values and logs at backend.

impl<'vicinity> Backend for MemoryBackend<'vicinity>

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

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

impl<'vicinity> Clone for MemoryBackend<'vicinity>

fn clone(&self) -> MemoryBackend<'vicinity>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'vicinity> Debug for MemoryBackend<'vicinity>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.