Trait FoldOverlayService 

pub trait FoldOverlayService: Send + Sync {
    // Required methods
    fn add_source(
        &self,
        source: Arc<dyn FoldSource>,
        buffer_id: BufferId,
    ) -> ProviderId;
    fn remove_source(&self, id: ProviderId);
}

Service for registering / deregistering overlay fold sources. Implemented by FoldOverlayServiceImpl in lattice-host (which wraps Arc<Mutex<FoldRegistry>>). Registered in the ServiceRegistry at boot so MultibufferMode::on_activate can call add_source without depending on lattice-host.

buffer_id scopes the overlay: FoldSourceAdapter in lattice-host only calls compute_folds when FoldContext::buffer_id matches, so providers from multiple simultaneous multibuffers don’t bleed into each other’s views.

Slice: M.7.

Required Methods

fn add_source( &self, source: Arc<dyn FoldSource>, buffer_id: BufferId, ) -> ProviderId

Register source as an overlay provider scoped to buffer_id and return the id to pass to Self::remove_source later.

fn remove_source(&self, id: ProviderId)

Deregister a source added by Self::add_source. Removing an unknown id is a no-op.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors