Trait DatabaseRef 

pub trait DatabaseRef {
    type Error: DBErrorMarker + Error;

    // Required methods
    fn basic_ref(
        &self,
        address: Address,
    ) -> Result<Option<AccountInfo>, Self::Error>;
    fn code_by_hash_ref(&self, code_hash: B256) -> Result<Bytecode, Self::Error>;
    fn storage_ref(
        &self,
        address: Address,
        index: StorageKey,
    ) -> Result<StorageValue, Self::Error>;
    fn block_hash_ref(&self, number: u64) -> Result<B256, Self::Error>;
}

EVM database interface.

Contains the same methods as Database, but with &self receivers instead of &mut self.

Use WrapDatabaseRef to provide Database implementation for a type that only implements this trait.

Required Associated Types

type Error: DBErrorMarker + Error

The database error type.

Required Methods

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, Self::Error>

Gets basic account information.

fn code_by_hash_ref(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

Gets account code by its hash.

fn storage_ref( &self, address: Address, index: StorageKey, ) -> Result<StorageValue, Self::Error>

Gets storage value of address at index.

fn block_hash_ref(&self, number: u64) -> Result<B256, Self::Error>

Gets block hash by block number.

Implementations on Foreign Types

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

type Error = <T as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, Self::Error>

fn code_by_hash_ref(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

fn storage_ref( &self, address: Address, index: StorageKey, ) -> Result<StorageValue, Self::Error>

fn block_hash_ref(&self, number: u64) -> Result<B256, Self::Error>

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

type Error = <T as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, Self::Error>

fn code_by_hash_ref(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

fn storage_ref( &self, address: Address, index: StorageKey, ) -> Result<StorageValue, Self::Error>

fn block_hash_ref(&self, number: u64) -> Result<B256, Self::Error>

impl<L, R> DatabaseRef for Either<L, R>

where L: DatabaseRef, R: DatabaseRef<Error = L::Error>,

type Error = <L as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, Self::Error>

fn code_by_hash_ref(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

fn storage_ref( &self, address: Address, index: StorageKey, ) -> Result<StorageValue, Self::Error>

fn block_hash_ref(&self, number: u64) -> Result<B256, Self::Error>

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

type Error = <T as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, Self::Error>

fn code_by_hash_ref(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

fn storage_ref( &self, address: Address, index: StorageKey, ) -> Result<StorageValue, Self::Error>

fn block_hash_ref(&self, number: u64) -> Result<B256, Self::Error>

impl<T: DatabaseRef + ?Sized> DatabaseRef for Rc<T>

type Error = <T as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, Self::Error>

fn code_by_hash_ref(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

fn storage_ref( &self, address: Address, index: StorageKey, ) -> Result<StorageValue, Self::Error>

fn block_hash_ref(&self, number: u64) -> Result<B256, Self::Error>

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

type Error = <T as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, Self::Error>

fn code_by_hash_ref(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

fn storage_ref( &self, address: Address, index: StorageKey, ) -> Result<StorageValue, Self::Error>

fn block_hash_ref(&self, number: u64) -> Result<B256, Self::Error>

Implementors

impl<E: DBErrorMarker + Error> DatabaseRef for EmptyDBTyped<E>

type Error = E

impl<T: DatabaseAsyncRef> DatabaseRef for WrapDatabaseAsync<T>

type Error = <T as DatabaseAsyncRef>::Error