Struct EditRing 

pub struct EditRing { /* private fields */ }

Bounded ring mapping an edit’s own wire ID back to the ID it replaced.

Senders name the original when referencing an edited message, but a sender that names the edit instead is easy to accommodate and impossible to distinguish from a stale reference otherwise, so references are chased through this ring before lookup. Recording chases one hop, so an edit of an edit collapses to the first original rather than forming a chain.

Implementations

impl EditRing

pub fn clear(&mut self)

pub fn record(&mut self, edit_id: u8, original_id: u8)

Record edit_id -> original_id, collapsing through any existing mapping of original_id and evicting the oldest entry when full.

pub fn resolve(&self, id: u8) -> u8

The original an ID stands for, or the ID itself when unmapped.

pub fn retire(&mut self, id: u8)

Retire any mapping involving id, in either position.

Trait Implementations

impl Clone for EditRing

fn clone(&self) -> EditRing

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EditRing

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

Formats the value using the given formatter.

impl Default for EditRing

fn default() -> EditRing

Returns the “default value” for a type.