Struct BufferSource 

pub struct BufferSource { /* private fields */ }

D.8.b (2026-05-31): live-rope participant backed by a buffer. Replaces the prior BufferSource + BufferSource two-struct split (both had identical shape — provider + buffer_id — and only differed in which trait they implemented). The trait collapse to DiffParticipantSource makes the split structurally redundant.

The unsaved-buffer case: when neither side of a diff has a filesystem path, both sides resolve through BufferTextProvider at snapshot time. The session’s descriptor must include this buffer in its watch list so edits to it wake the session.

Implementations

impl BufferSource

pub fn new( provider: Arc<dyn BufferTextProvider>, buffer_id: BufferId, ) -> BufferSource

pub fn buffer_id(&self) -> BufferId

Trait Implementations

impl Clone for BufferSource

fn clone(&self) -> BufferSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BufferSource

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

Formats the value using the given formatter.

impl DiffParticipantSource for BufferSource

fn snapshot(&self) -> Rope

Produce this participant’s rope. Called once per recompute; the implementor decides whether to clone a cached rope or rematerialise from a backing store.

fn buffer_id(&self) -> Option<BufferId>

D.8.d (2026-05-31): the buffer id this source is backed by, if any. Returns None for non-buffer sources (StaticSource, OnDiskSource, future GitSource); BufferSource overrides to return Some(buffer_id).