Struct NonFungibleAssetDelta 

pub struct NonFungibleAssetDelta(/* private fields */);

A binary tree map of non-fungible asset changes (addition and removal) in the account vault.

The LexicographicWord wrapper is necessary to order the assets in the same way as the in-kernel account delta which uses a link map.

Implementations

impl NonFungibleAssetDelta

pub const fn new( map: BTreeMap<LexicographicWord<NonFungibleAsset>, NonFungibleDeltaAction>, ) -> NonFungibleAssetDelta

Creates a new non-fungible asset delta.

pub fn add(&mut self, asset: NonFungibleAsset) -> Result<(), AccountDeltaError>

Adds a new non-fungible asset to the delta.

Errors

Returns an error if the delta already contains the asset addition.

pub fn remove( &mut self, asset: NonFungibleAsset, ) -> Result<(), AccountDeltaError>

Removes a non-fungible asset from the delta.

Errors

Returns an error if the delta already contains the asset removal.

pub fn num_assets(&self) -> usize

Returns the number of non-fungible assets affected in the delta.

pub fn is_empty(&self) -> bool

Returns true if this vault delta contains no updates.

pub fn iter( &self, ) -> impl Iterator<Item = (&NonFungibleAsset, &NonFungibleDeltaAction)>

Returns an iterator over the (key, value) pairs of the map.

pub fn merge( &mut self, other: NonFungibleAssetDelta, ) -> Result<(), AccountDeltaError>

Merges another delta into this one, overwriting any existing values.

The result is validated as part of the merge.

Errors

Returns an error if duplicate non-fungible assets are added or removed.

Trait Implementations

impl Clone for NonFungibleAssetDelta

fn clone(&self) -> NonFungibleAssetDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NonFungibleAssetDelta

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

Formats the value using the given formatter.

impl Default for NonFungibleAssetDelta

fn default() -> NonFungibleAssetDelta

Returns the “default value” for a type.

impl Deserializable for NonFungibleAssetDelta

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

where R: ByteReader,

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 PartialEq for NonFungibleAssetDelta

fn eq(&self, other: &NonFungibleAssetDelta) -> 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 Serializable for NonFungibleAssetDelta

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

where W: ByteWriter,

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 NonFungibleAssetDelta

impl StructuralPartialEq for NonFungibleAssetDelta