pub struct MemoryStorage { /* private fields */ }
Expand description

In-memory storage implementation for the interpreter.

It tracks 3 states:

  • memory: the transactions will be applied to this state.
  • transacted: will receive the committed memory state.
  • persisted: will receive the persisted transacted state.

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impl MemoryStorage

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pub fn new(block_height: u32, coinbase: Address) -> Self

Create a new memory storage.

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pub fn all_contract_state(
&self
) -> impl Iterator<Item = (&ContractsStateKey, &Bytes32)>

Iterate over all contract state in storage

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pub fn contract_state(
&self,
contract: &ContractId,
key: &Bytes32
) -> Cow<'_, Bytes32>

Fetch a mapping from the contract state.

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pub fn commit(&mut self)

Set the transacted state to the memory state.

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pub fn revert(&mut self)

Revert the memory state to the transacted state.

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pub fn rollback(&mut self)

Revert the memory and transacted changes to the persisted state.

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pub fn persist(&mut self)

Persist the changes from transacted to memory+persisted state.

Trait Implementations§

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impl AsMut<MemoryStorage> for MemoryClient

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fn as_mut(&mut self) -> &mut MemoryStorage

Converts this type into a mutable reference of the (usually inferred) input type.
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impl AsRef<MemoryStorage> for MemoryClient

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fn as_ref(&self) -> &MemoryStorage

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for MemoryStorage

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fn clone(&self) -> MemoryStorage

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for MemoryStorage

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

Formats the value using the given formatter. Read more
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impl Default for MemoryStorage

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl From<MemoryStorage> for MemoryClient

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fn from(s: MemoryStorage) -> Self

Converts to this type from the input type.
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impl InterpreterStorage for MemoryStorage

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type DataError = Infallible

Error implementation for reasons unspecified in the protocol.
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fn block_height(&self) -> Result<u32, Infallible>

Provide the current block height in which the transactions should be executed.
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fn timestamp(&self, height: u32) -> Result<Word, Self::DataError>

Return the timestamp of a given block Read more
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fn block_hash(&self, block_height: u32) -> Result<Bytes32, Infallible>

Provide the block hash from a given height.
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fn coinbase(&self) -> Result<Address, Infallible>

Provide the coinbase address for the VM instructions implementation.
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fn merkle_contract_state_range(
&self,
id: &ContractId,
start_key: &Bytes32,
range: Word
) -> Result<Vec<Option<Cow<'_, Bytes32>>>, Self::DataError>

Fetch a range of values from a key-value mapping in a contract storage. Returns the full range requested using optional values in case a requested slot is unset.
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fn merkle_contract_state_insert_range(
&mut self,
contract: &ContractId,
start_key: &Bytes32,
values: &[Bytes32]
) -> Result<Option<()>, Self::DataError>

Insert a range of key-value mappings into contract storage. Returns None if any of the keys in the range were previously unset.
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fn merkle_contract_state_remove_range(
&mut self,
contract: &ContractId,
start_key: &Bytes32,
range: Word
) -> Result<Option<()>, Self::DataError>

Remove a range of key-values from contract storage. Returns None if any of the keys in the range were already unset.
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fn deploy_contract(
&mut self,
salt: &Salt,
slots: &[StorageSlot],
contract: &Contract
) -> Result<(), Self::DataError>

Deploy a contract into the storage
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fn deploy_contract_with_id(
&mut self,
salt: &Salt,
slots: &[StorageSlot],
contract: &Contract,
root: &Bytes32,
id: &ContractId
) -> Result<(), Self::DataError>

Deploy a contract into the storage with contract id
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fn storage_contract(
&self,
id: &ContractId
) -> Result<Option<Cow<'_, Contract>>, Self::DataError>

Fetch a previously inserted contract code from the chain state for a given contract.
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fn storage_contract_insert(
&mut self,
id: &ContractId,
contract: &Contract
) -> Result<Option<Contract>, Self::DataError>

Append a contract to the chain, provided its identifier. Read more
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fn storage_contract_exists(
&self,
id: &ContractId
) -> Result<bool, Self::DataError>

Check if a provided contract exists in the chain.
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fn storage_contract_root(
&self,
id: &ContractId
) -> Result<Option<Cow<'_, (Salt, Bytes32)>>, Self::DataError>

Fetch a previously inserted salt+root tuple from the chain state for a given contract.
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fn storage_contract_root_insert(
&mut self,
id: &ContractId,
salt: &Salt,
root: &Bytes32
) -> Result<Option<(Salt, Bytes32)>, Self::DataError>

Append the salt+root of a contract that was appended to the chain.
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fn merkle_contract_state(
&self,
id: &ContractId,
key: &Bytes32
) -> Result<Option<Cow<'_, Bytes32>>, Self::DataError>

Fetch the value form a key-value mapping in a contract storage.
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fn merkle_contract_state_insert(
&mut self,
contract: &ContractId,
key: &Bytes32,
value: &Bytes32
) -> Result<Option<Bytes32>, Self::DataError>

Insert a key-value mapping in a contract storage.
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fn merkle_contract_state_remove(
&mut self,
contract: &ContractId,
key: &Bytes32
) -> Result<Option<Bytes32>, Self::DataError>

Remove a key-value mapping from a contract storage.
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fn merkle_contract_asset_id_balance(
&self,
id: &ContractId,
asset_id: &AssetId
) -> Result<Option<Word>, Self::DataError>

Fetch the balance of an asset ID in a contract storage.
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fn merkle_contract_asset_id_balance_insert(
&mut self,
contract: &ContractId,
asset_id: &AssetId,
value: Word
) -> Result<Option<Word>, Self::DataError>

Update the balance of an asset ID in a contract storage.
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impl MerkleRootStorage<ContractId, ContractsAssets> for MemoryStorage

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fn root(&self, parent: &ContractId) -> Result<MerkleRoot, Infallible>

Return the merkle root of the stored Type in the storage. Read more
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impl MerkleRootStorage<ContractId, ContractsState> for MemoryStorage

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fn root(&self, parent: &ContractId) -> Result<MerkleRoot, Infallible>

Return the merkle root of the stored Type in the storage. Read more
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impl StorageInspect<ContractsAssets> for MemoryStorage

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type Error = Infallible

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fn get(
&self,
key: &<ContractsAssets as Mappable>::Key
) -> Result<Option<Cow<'_, Word>>, Infallible>

Retrieve Cow<Value> such as Key->Value.
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fn contains_key(
&self,
key: &<ContractsAssets as Mappable>::Key
) -> Result<bool, Infallible>

Return true if there is a Key mapping to a value in the storage.
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impl StorageInspect<ContractsInfo> for MemoryStorage

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type Error = Infallible

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fn get(
&self,
key: &ContractId
) -> Result<Option<Cow<'_, (Salt, Bytes32)>>, Infallible>

Retrieve Cow<Value> such as Key->Value.
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fn contains_key(&self, key: &ContractId) -> Result<bool, Infallible>

Return true if there is a Key mapping to a value in the storage.
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impl StorageInspect<ContractsRawCode> for MemoryStorage

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type Error = Infallible

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fn get(&self, key: &ContractId) -> Result<Option<Cow<'_, Contract>>, Infallible>

Retrieve Cow<Value> such as Key->Value.
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fn contains_key(&self, key: &ContractId) -> Result<bool, Infallible>

Return true if there is a Key mapping to a value in the storage.
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impl StorageInspect<ContractsState> for MemoryStorage

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type Error = Infallible

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fn get(
&self,
key: &<ContractsState as Mappable>::Key
) -> Result<Option<Cow<'_, Bytes32>>, Infallible>

Retrieve Cow<Value> such as Key->Value.
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fn contains_key(
&self,
key: &<ContractsState as Mappable>::Key
) -> Result<bool, Infallible>

Return true if there is a Key mapping to a value in the storage.
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impl StorageMutate<ContractsAssets> for MemoryStorage

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fn insert(
&mut self,
key: &<ContractsAssets as Mappable>::Key,
value: &Word
) -> Result<Option<Word>, Infallible>

Append Key->Value mapping to the storage. Read more
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fn remove(
&mut self,
key: &<ContractsAssets as Mappable>::Key
) -> Result<Option<Word>, Infallible>

Remove Key->Value mapping from the storage. Read more
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impl StorageMutate<ContractsInfo> for MemoryStorage

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fn insert(
&mut self,
key: &ContractId,
value: &(Salt, Bytes32)
) -> Result<Option<(Salt, Bytes32)>, Infallible>

Append Key->Value mapping to the storage. Read more
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fn remove(
&mut self,
key: &ContractId
) -> Result<Option<(Salt, Bytes32)>, Infallible>

Remove Key->Value mapping from the storage. Read more
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impl StorageMutate<ContractsRawCode> for MemoryStorage

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fn insert(
&mut self,
key: &ContractId,
value: &[u8]
) -> Result<Option<Contract>, Infallible>

Append Key->Value mapping to the storage. Read more
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fn remove(&mut self, key: &ContractId) -> Result<Option<Contract>, Infallible>

Remove Key->Value mapping from the storage. Read more
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impl StorageMutate<ContractsState> for MemoryStorage

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fn insert(
&mut self,
key: &<ContractsState as Mappable>::Key,
value: &Bytes32
) -> Result<Option<Bytes32>, Infallible>

Append Key->Value mapping to the storage. Read more
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fn remove(
&mut self,
key: &<ContractsState as Mappable>::Key
) -> Result<Option<Bytes32>, Infallible>

Remove Key->Value mapping from the storage. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> AnyDebug for Twhere
T: Any + Debug,

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fn as_any_ref(&self) -> &(dyn Any + 'static)

Returns a reference to the underlying type as Any.
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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T> StorageAsMut for T

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fn storage<Type>(&mut self) -> StorageMut<'_, Self, Type>where
Type: Mappable,

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fn storage_as_mut<Type>(&mut self) -> StorageMut<'_, Self, Type>where
Type: Mappable,

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impl<T> StorageAsRef for T

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fn storage<Type>(&self) -> StorageRef<'_, Self, Type>where
Type: Mappable,

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fn storage_as_ref<Type>(&self) -> StorageRef<'_, Self, Type>where
Type: Mappable,

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impl<S, Type> StorageInspectInfallible<Type> for Swhere
S: StorageInspect<Type, Error = Infallible>,
Type: Mappable,

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fn get(
&self,
key: &<Type as Mappable>::Key
) -> Option<Cow<'_, <Type as Mappable>::OwnedValue>>

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fn contains_key(&self, key: &<Type as Mappable>::Key) -> bool

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impl<S, Type> StorageMutateInfallible<Type> for Swhere
S: StorageMutate<Type, Error = Infallible>,
Type: Mappable,

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fn insert(
&mut self,
key: &<Type as Mappable>::Key,
value: &<Type as Mappable>::Value
) -> Option<<Type as Mappable>::OwnedValue>

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fn remove(
&mut self,
key: &<Type as Mappable>::Key
) -> Option<<Type as Mappable>::OwnedValue>

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impl<T> ToOwned for Twhere
T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere
V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more