Struct language_e2e_tests::data_store::FakeDataStore

pub struct FakeDataStore { /* private fields */ }

An in-memory implementation of StateView and [RemoteCache] for the VM.

Tests use this to set up state, and pass in a reference to the cache whenever a StateView or RemoteCache is needed.

Implementations

impl FakeDataStore

pub fn new(data: HashMap<AccessPath, Vec<u8>>) -> Self

Creates a new FakeDataStore with the provided initial data.

pub fn add_write_set(&mut self, write_set: &WriteSet)

Adds a WriteSet to this data store.

pub fn set( &mut self, access_path: AccessPath, data_blob: Vec<u8> ) -> Option<Vec<u8>>

Sets a (key, value) pair within this data store.

Returns the previous data if the key was occupied.

pub fn remove(&mut self, access_path: &AccessPath) -> Option<Vec<u8>>

Deletes a key from this data store.

Returns the previous data if the key was occupied.

pub fn add_account_data(&mut self, account_data: &AccountData)

Adds an AccountData to this data store.

pub fn add_module(&mut self, module_id: &ModuleId, blob: Vec<u8>)

Adds a [CompiledModule] to this data store.

Does not do any sort of verification on the module.

pub fn inner(&self) -> &HashMap<AccessPath, Vec<u8>>

Yields a reference to the internal data structure of the global state

Trait Implementations

impl Clone for FakeDataStore

fn clone(&self) -> FakeDataStore

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ConfigStorage for FakeDataStore

fn fetch_config(&self, access_path: AccessPath) -> Option<Vec<u8>>

impl Debug for FakeDataStore

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

Formats the value using the given formatter.

impl Default for FakeDataStore

fn default() -> FakeDataStore

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FakeDataStore

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl ModuleResolver for FakeDataStore

type Error = VMError

fn get_module( &self, module_id: &ModuleId ) -> Result<Option<Vec<u8>>, Self::Error>

impl ResourceResolver for FakeDataStore

type Error = VMError

fn get_resource( &self, address: &AccountAddress, tag: &StructTag ) -> Result<Option<Vec<u8>>, Self::Error>

impl Serialize for FakeDataStore

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

Serialize this value into the given Serde serializer.

impl StateView for FakeDataStore

fn get(&self, access_path: &AccessPath) -> Result<Option<Vec<u8>>>

Gets the state for a single access path.

fn is_genesis(&self) -> bool

VM needs this method to know whether the current state view is for genesis state creation. Currently TransactionPayload::WriteSet is only valid for genesis state creation.

fn id(&self) -> StateViewId

For logging and debugging purpose, identifies what this view is for.