Trait ethcore::state::StateInfo

pub trait StateInfo {
    fn nonce(&self, a: &Address) -> TrieResult<U256>;
    fn balance(&self, a: &Address) -> TrieResult<U256>;
    fn storage_at(&self, address: &Address, key: &H256) -> TrieResult<H256>;
    fn code(&self, a: &Address) -> TrieResult<Option<Arc<Bytes>>>;
}

Provides subset of State methods to query state information

Required Methods

fn nonce(&self, a: &Address) -> TrieResult<U256>

Get the nonce of account a.

fn balance(&self, a: &Address) -> TrieResult<U256>

Get the balance of account a.

fn storage_at(&self, address: &Address, key: &H256) -> TrieResult<H256>

Mutate storage of account address so that it is value for key.

fn code(&self, a: &Address) -> TrieResult<Option<Arc<Bytes>>>

Get accounts' code.

Implementations on Foreign Types

impl StateInfo for ()

fn nonce(&self, _address: &Address) -> Result<U256>

fn balance(&self, _address: &Address) -> Result<U256>

fn storage_at(&self, _address: &Address, _key: &H256) -> Result<H256>

fn code(&self, _address: &Address) -> Result<Option<Arc<Bytes>>>

Implementors

• impl<B: Backend> StateInfo for State<B>