Trait Database

pub trait Database {
    type Error: DBErrorMarker + Error;

    // Required methods
    fn basic(
        &mut self,
        address: Address,
    ) -> Result<Option<AccountInfo>, Self::Error>;
    fn code_by_hash(
        &mut self,
        code_hash: FixedBytes<32>,
    ) -> Result<Bytecode, Self::Error>;
    fn storage(
        &mut self,
        address: Address,
        index: Uint<256, 4>,
    ) -> Result<Uint<256, 4>, Self::Error>;
    fn block_hash(&mut self, number: u64) -> Result<FixedBytes<32>, Self::Error>;
}

EVM database interface.

Required Associated Types

type Error: DBErrorMarker + Error

The database error type.

Required Methods

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

Gets basic account information.

fn code_by_hash( &mut self, code_hash: FixedBytes<32>, ) -> Result<Bytecode, Self::Error>

Gets account code by its hash.

fn storage( &mut self, address: Address, index: Uint<256, 4>, ) -> Result<Uint<256, 4>, Self::Error>

Gets storage value of address at index.

fn block_hash(&mut self, number: u64) -> Result<FixedBytes<32>, Self::Error>

Gets block hash by block number.

Implementations on Foreign Types

impl<'a, T> Database for &'a mut T

where T: 'a + Database + ?Sized,

type Error = <T as Database>::Error

fn basic( &mut self, address: Address, ) -> Result<Option<AccountInfo>, <&'a mut T as Database>::Error>

fn code_by_hash( &mut self, code_hash: FixedBytes<32>, ) -> Result<Bytecode, <&'a mut T as Database>::Error>

fn storage( &mut self, address: Address, index: Uint<256, 4>, ) -> Result<Uint<256, 4>, <&'a mut T as Database>::Error>

fn block_hash( &mut self, number: u64, ) -> Result<FixedBytes<32>, <&'a mut T as Database>::Error>

impl<T> Database for Box<T>

where T: Database + ?Sized,

type Error = <T as Database>::Error

fn basic( &mut self, address: Address, ) -> Result<Option<AccountInfo>, <Box<T> as Database>::Error>

fn code_by_hash( &mut self, code_hash: FixedBytes<32>, ) -> Result<Bytecode, <Box<T> as Database>::Error>

fn storage( &mut self, address: Address, index: Uint<256, 4>, ) -> Result<Uint<256, 4>, <Box<T> as Database>::Error>

fn block_hash( &mut self, number: u64, ) -> Result<FixedBytes<32>, <Box<T> as Database>::Error>

Implementors

impl<E> Database for EmptyDBTyped<E>

where E: DBErrorMarker + Error,

type Error = E

impl<T> Database for WrapDatabaseRef<T>

where T: DatabaseRef,

type Error = <T as DatabaseRef>::Error