Struct ShadowStorage 

pub struct ShadowStorage<'a> { /* private fields */ }

ReadStorage implementation backed by 2 different backends: source_storage – backend that will return values for function calls and be the source of truth to_check_storage – secondary storage, which will verify it’s own return values against source_storage Note that if to_check_storage value is different than source value, execution continues and metrics/ logs are emitted.

Implementations

impl<'a> ShadowStorage<'a>

pub fn new( source_storage: Box<dyn ReadStorage + 'a>, to_check_storage: Box<dyn ReadStorage + 'a>, l1_batch_number: L1BatchNumber, ) -> Self

Creates a new storage using the 2 underlying ReadStorages, first as source, the second to be checked against the source.

Trait Implementations

impl<'a> Debug for ShadowStorage<'a>

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

Formats the value using the given formatter.

impl ReadStorage for ShadowStorage<'_>

fn read_value(&mut self, key: &StorageKey) -> StorageValue

Read value of the key.

fn is_write_initial(&mut self, key: &StorageKey) -> bool

Checks whether a write to this storage at the specified key would be an initial write. Roughly speaking, this is the case when the storage doesn’t contain key, although in case of mutable storage, the caveats apply (a write to a key that is present in the storage but was not committed is still an initial write).

fn load_factory_dep(&mut self, hash: H256) -> Option<Vec<u8>>

Load the factory dependency code by its hash.

fn get_enumeration_index(&mut self, key: &StorageKey) -> Option<u64>

Retrieves the enumeration index for a given key.

fn is_bytecode_known(&mut self, bytecode_hash: &H256) -> bool

Returns whether a bytecode hash is “known” to the system.