Type Alias EmptyDB

pub type EmptyDB = EmptyDBTyped<Infallible>;

An empty database that always returns default values when queried

Aliased Type

struct EmptyDB { /* private fields */ }

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 0 bytes

Implementations

impl<E> EmptyDBTyped<E>

pub fn new() -> EmptyDBTyped<E>

Trait Implementations

impl<E> Clone for EmptyDBTyped<E>

fn clone(&self) -> EmptyDBTyped<E>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<E> Database for EmptyDBTyped<E>

where E: DBErrorMarker + Error,

type Error = E

The database error type.

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

Gets basic account information.

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

Gets account code by its hash.

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

Gets storage value of address at index.

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

Gets block hash by block number.

impl<E> DatabaseRef for EmptyDBTyped<E>

where E: DBErrorMarker + Error,

type Error = E

The database error type.

fn basic_ref( &self, _address: Address, ) -> Result<Option<AccountInfo>, <EmptyDBTyped<E> as DatabaseRef>::Error>

Gets basic account information.

fn code_by_hash_ref( &self, _code_hash: FixedBytes<32>, ) -> Result<Bytecode, <EmptyDBTyped<E> as DatabaseRef>::Error>

Gets account code by its hash.

fn storage_ref( &self, _address: Address, _index: Uint<256, 4>, ) -> Result<Uint<256, 4>, <EmptyDBTyped<E> as DatabaseRef>::Error>

Gets storage value of address at index.

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

Gets block hash by block number.

impl<E> Debug for EmptyDBTyped<E>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<E> Default for EmptyDBTyped<E>

fn default() -> EmptyDBTyped<E>

Returns the “default value” for a type.

impl<'de, E> Deserialize<'de> for EmptyDBTyped<E>

fn deserialize<__D>( __deserializer: __D, ) -> Result<EmptyDBTyped<E>, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<E> PartialEq for EmptyDBTyped<E>

fn eq(&self, _: &EmptyDBTyped<E>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<E> Serialize for EmptyDBTyped<E>

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<E> Copy for EmptyDBTyped<E>

impl<E> Eq for EmptyDBTyped<E>