Struct SignedSumMap 

pub struct SignedSumMap<K: Ord + Clone> { /* private fields */ }

Map of K → SignedSum — convergent per-key net signed exposure.

Merge is the per-key SignedSum merge over the union of keys, so the map inherits the same commutative / associative / idempotent guarantee.

Implementations

impl<K: Ord + Clone> SignedSumMap<K>

pub fn new() -> Self

pub fn add(&mut self, key: K, node: &str, delta: i128)

Apply a signed delta attributed to node for key.

pub fn get(&self, key: &K) -> i128

Net signed exposure for key (0 if the key is absent).

pub fn entries(&self) -> impl Iterator<Item = (&K, i128)>

Iterate (&key, net_value) over all keys, in key order.

Trait Implementations

impl<K: Clone + Ord + Clone> Clone for SignedSumMap<K>

fn clone(&self) -> SignedSumMap<K>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K: Ord + Clone> CrdtMerge for SignedSumMap<K>

fn merge(&mut self, other: &Self)

impl<K: Debug + Ord + Clone> Debug for SignedSumMap<K>

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

Formats the value using the given formatter.

impl<K: Default + Ord + Clone> Default for SignedSumMap<K>

fn default() -> SignedSumMap<K>

Returns the “default value” for a type.

impl<'de, K> Deserialize<'de> for SignedSumMap<K>

where K: Deserialize<'de> + Ord + Clone,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<K: PartialEq + Ord + Clone> PartialEq for SignedSumMap<K>

fn eq(&self, other: &SignedSumMap<K>) -> 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<K> Serialize for SignedSumMap<K>

where K: Serialize + Ord + Clone,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<K: Eq + Ord + Clone> Eq for SignedSumMap<K>

impl<K: Ord + Clone> StructuralPartialEq for SignedSumMap<K>