Type Alias JournalInit

pub type JournalInit = JournaledState<EmptyDB>;

A clonable version of JournaledState that uses EmptyDB.

Aliased Type

struct JournalInit {
    pub database: EmptyDBTyped<Infallible>,
    pub state: HashMap<Address, Account>,
    pub transient_storage: HashMap<(Address, Uint<256, 4>), Uint<256, 4>>,
    pub logs: Vec<Log>,
    pub depth: usize,
    pub journal: Vec<Vec<JournalEntry>>,
    pub spec: SpecId,
    pub warm_preloaded_addresses: HashSet<Address>,
    pub precompiles: HashSet<Address>,
}

Fields

database: EmptyDBTyped<Infallible>

Database

state: HashMap<Address, Account>

The current state

transient_storage: HashMap<(Address, Uint<256, 4>), Uint<256, 4>>

Transient storage that is discarded after every transaction.

See EIP-1153.

logs: Vec<Log>

Emitted logs

depth: usize

The current call stack depth

journal: Vec<Vec<JournalEntry>>

The journal of state changes, one for each call

spec: SpecId

The spec ID for the EVM

This spec is used for two things:

• EIP-161: Prior to this EIP, Ethereum had separate definitions for empty and non-existing accounts.
• EIP-6780: SELFDESTRUCT only in same transaction

warm_preloaded_addresses: HashSet<Address>

Warm loaded addresses are used to check if loaded address should be considered cold or warm loaded when the account is first accessed.

Note that this not include newly loaded accounts, account and storage is considered warm if it is found in the State.

precompiles: HashSet<Address>

Precompile addresses