Struct StorageSlot 

pub struct StorageSlot { /* private fields */ }

An individual storage slot in AccountStorage.

This consists of a StorageSlotName that uniquely identifies the slot and its StorageSlotContent.

Implementations

impl StorageSlot

pub const NUM_ELEMENTS: usize = 8

The number of field elements that represent a StorageSlot in kernel memory.

pub fn new(name: StorageSlotName, content: StorageSlotContent) -> Self

Creates a new StorageSlot with the given StorageSlotName and StorageSlotContent.

pub fn with_value(name: StorageSlotName, value: Word) -> Self

Creates a new StorageSlot with the given StorageSlotName and the value wrapped into a StorageSlotContent::Value.

pub fn with_empty_value(name: StorageSlotName) -> Self

Creates a new StorageSlot with the given StorageSlotName and StorageSlotContent::empty_value.

pub fn with_map(name: StorageSlotName, map: StorageMap) -> Self

Creates a new StorageSlot with the given StorageSlotName and the map wrapped into a StorageSlotContent::Map

pub fn with_empty_map(name: StorageSlotName) -> Self

Creates a new StorageSlot with the given StorageSlotName and StorageSlotContent::empty_map.

pub fn name(&self) -> &StorageSlotName

Returns the StorageSlotName by which the StorageSlot is identified.

pub fn id(&self) -> StorageSlotId

Returns the StorageSlotId by which the StorageSlot is identified.

pub fn value(&self) -> Word

Returns this storage slot value as a Word

Returns:

• For StorageSlotContent::Value the value.
• For StorageSlotContent::Map the root of the StorageMap.

pub fn content(&self) -> &StorageSlotContent

Returns a reference to the StorageSlotContent contained in this StorageSlot.

pub fn slot_type(&self) -> StorageSlotType

Returns the StorageSlotType of this StorageSlot.

pub fn content_mut(&mut self) -> &mut StorageSlotContent

Returns a mutable reference to the StorageSlotContent contained in this StorageSlot.

pub fn into_parts(self) -> (StorageSlotName, StorageSlotContent)

Consumes self and returns the underlying parts.

Trait Implementations

impl Clone for StorageSlot

fn clone(&self) -> StorageSlot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StorageSlot

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

Formats the value using the given formatter.

impl Deserializable for StorageSlot

fn read_from<R: ByteReader>( source: &mut R, ) -> Result<Self, DeserializationError>

Reads a sequence of bytes from the provided source, attempts to deserialize these bytes into Self, and returns the result.

fn read_from_bytes(bytes: &[u8]) -> Result<Self, DeserializationError>

Attempts to deserialize the provided bytes into Self and returns the result.

impl From<&StorageSlot> for StorageSlotHeader

fn from(slot: &StorageSlot) -> Self

Converts to this type from the input type.

impl Ord for StorageSlot

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for StorageSlot

fn eq(&self, other: &StorageSlot) -> 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 PartialOrd for StorageSlot

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serializable for StorageSlot

fn write_into<W: ByteWriter>(&self, target: &mut W)

Serializes self into bytes and writes these bytes into the target.

fn get_size_hint(&self) -> usize

Returns an estimate of how many bytes are needed to represent self.

fn to_bytes(&self) -> Vec<u8>

Serializes self into a vector of bytes.

impl Eq for StorageSlot

impl StructuralPartialEq for StorageSlot