Struct LWWMap 

pub struct LWWMap { /* private fields */ }

Last-Write-Wins CRDT map using BTreeMap (no_std compatible). Tie-breaking: timestamp > writer_id (lexicographic), matching Python’s LWWMap.

Implementations

impl LWWMap

pub fn new() -> LWWMap

Creates an empty LWWMap.

pub fn set( &mut self, key: &str, value: Value, timestamp_ms: i64, writer_id: &str, )

Writes a value with the given timestamp and writer ID. No-op if a newer value exists. Equal timestamps are broken by writer_id (higher wins).

pub fn get(&self, key: &str) -> Option<&Value>

Returns the value for a key, or None if absent.

pub fn merge(&mut self, other: &LWWMap)

Merges another LWWMap into this one using LWW semantics.

pub fn to_map(&self) -> BTreeMap<String, Value>

Returns a plain BTreeMap snapshot of all current values.

Trait Implementations

impl Clone for LWWMap

fn clone(&self) -> LWWMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LWWMap

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

Formats the value using the given formatter.

impl Default for LWWMap

fn default() -> LWWMap

Returns the “default value” for a type.