Struct MutationSet

pub struct MutationSet<const DEPTH: u8, K: Eq + Hash, V> { /* private fields */ }

Represents a group of prospective mutations to a SparseMerkleTree, created by SparseMerkleTree::compute_mutations(), and that can be applied with SparseMerkleTree::apply_mutations().

Implementations

impl<const DEPTH: u8, K: Eq + Hash, V> MutationSet<DEPTH, K, V>

pub fn root(&self) -> RpoDigest

Returns the SMT root that was calculated during SparseMerkleTree::compute_mutations(). See that method for more information.

pub fn old_root(&self) -> RpoDigest

Returns the SMT root before the mutations were applied.

pub fn node_mutations(&self) -> &BTreeMap<NodeIndex, NodeMutation>

Returns the set of inner nodes that need to be removed or added.

pub fn new_pairs(&self) -> &BTreeMap<K, V>

Returns the set of top-level key-value pairs that need to be added, updated or deleted (i.e. set to EMPTY_WORD).

Trait Implementations

impl<const DEPTH: u8, K: Clone + Eq + Hash, V: Clone> Clone for MutationSet<DEPTH, K, V>

fn clone(&self) -> MutationSet<DEPTH, K, V>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<const DEPTH: u8, K: Debug + Eq + Hash, V: Debug> Debug for MutationSet<DEPTH, K, V>

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

Formats the value using the given formatter.

impl<const DEPTH: u8, K: Default + Eq + Hash, V: Default> Default for MutationSet<DEPTH, K, V>

fn default() -> MutationSet<DEPTH, K, V>

Returns the “default value” for a type.

impl<const DEPTH: u8, K: Deserializable + Ord + Eq + Hash, V: Deserializable> Deserializable for MutationSet<DEPTH, K, V>

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<const DEPTH: u8, K: PartialEq + Eq + Hash, V: PartialEq> PartialEq for MutationSet<DEPTH, K, V>

fn eq(&self, other: &MutationSet<DEPTH, K, V>) -> 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<const DEPTH: u8, K: Serializable + Eq + Hash, V: Serializable> Serializable for MutationSet<DEPTH, K, V>

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

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

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

Serializes self into a vector of bytes.

fn get_size_hint(&self) -> usize

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

impl<const DEPTH: u8, K: Eq + Eq + Hash, V: Eq> Eq for MutationSet<DEPTH, K, V>

impl<const DEPTH: u8, K: Eq + Hash, V> StructuralPartialEq for MutationSet<DEPTH, K, V>