Trait DatabaseRef

pub trait DatabaseRef {
    type Error;

    // Required methods
    fn basic_ref(
        &self,
        address: Address,
    ) -> Result<Option<AccountInfo>, Self::Error>;
    fn code_by_hash_ref(
        &self,
        code_hash: FixedBytes<32>,
    ) -> Result<Bytecode, Self::Error>;
    fn storage_ref(
        &self,
        address: Address,
        index: Uint<256, 4>,
    ) -> Result<Uint<256, 4>, Self::Error>;
    fn block_hash_ref(&self, number: u64) -> Result<FixedBytes<32>, 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

The database error type.

Required Methods

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

Get basic account information.

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

Get account code by its hash.

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

Get storage value of address at index.

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

Get block hash by block number.

Implementations on Foreign Types

impl<'a, T> DatabaseRef for &'a T

where T: 'a + DatabaseRef + ?Sized,

type Error = <T as DatabaseRef>::Error

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

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

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

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

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

where T: 'a + DatabaseRef + ?Sized,

type Error = <T as DatabaseRef>::Error

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

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

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

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

impl<T> DatabaseRef for Box<T>

where T: DatabaseRef + ?Sized,

type Error = <T as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, <Box<T> as DatabaseRef>::Error>

fn code_by_hash_ref( &self, code_hash: FixedBytes<32>, ) -> Result<Bytecode, <Box<T> as DatabaseRef>::Error>

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

fn block_hash_ref( &self, number: u64, ) -> Result<FixedBytes<32>, <Box<T> as DatabaseRef>::Error>

impl<T> DatabaseRef for Rc<T>

where T: DatabaseRef + ?Sized,

type Error = <T as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, <Rc<T> as DatabaseRef>::Error>

fn code_by_hash_ref( &self, code_hash: FixedBytes<32>, ) -> Result<Bytecode, <Rc<T> as DatabaseRef>::Error>

fn storage_ref( &self, address: Address, index: Uint<256, 4>, ) -> Result<Uint<256, 4>, <Rc<T> as DatabaseRef>::Error>

fn block_hash_ref( &self, number: u64, ) -> Result<FixedBytes<32>, <Rc<T> as DatabaseRef>::Error>

impl<T> DatabaseRef for Arc<T>

where T: DatabaseRef + ?Sized,

type Error = <T as DatabaseRef>::Error

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, <Arc<T> as DatabaseRef>::Error>

fn code_by_hash_ref( &self, code_hash: FixedBytes<32>, ) -> Result<Bytecode, <Arc<T> as DatabaseRef>::Error>

fn storage_ref( &self, address: Address, index: Uint<256, 4>, ) -> Result<Uint<256, 4>, <Arc<T> as DatabaseRef>::Error>

fn block_hash_ref( &self, number: u64, ) -> Result<FixedBytes<32>, <Arc<T> as DatabaseRef>::Error>

Implementors

impl DatabaseRef for Backend

type Error = DatabaseError

impl DatabaseRef for CowBackend<'_>

type Error = DatabaseError

impl DatabaseRef for EmptyDBWrapper

type Error = DatabaseError

impl DatabaseRef for MemDb

type Error = DatabaseError

impl DatabaseRef for SharedBackend

type Error = DatabaseError

impl DatabaseRef for ForkDbStateSnapshot

type Error = DatabaseError

impl DatabaseRef for ForkedDatabase

type Error = DatabaseError

impl<E> DatabaseRef for EmptyDBTyped<E>

type Error = E

impl<ExtDB> DatabaseRef for CacheDB<ExtDB>

where ExtDB: DatabaseRef,

type Error = <ExtDB as DatabaseRef>::Error

impl<S, BH> DatabaseRef for DatabaseComponents<S, BH>

where S: StateRef, BH: BlockHashRef,

type Error = DatabaseComponentError<<S as StateRef>::Error, <BH as BlockHashRef>::Error>