Struct WasmDecorationSource 

pub struct WasmDecorationSource { /* private fields */ }

An async gutter-decoration producer over a plugin’s DecorationClient. Cheap to clone (the client is an mpsc Sender clone); every clone talks to the same actor / Store.

Implementations

impl WasmDecorationSource

pub fn new(client: DecorationClient, signs: Option<SignRegistryHandle>) -> Self

Build the adapter over a client bridge. (No connect/spec round-trip like completion — a decoration provider has no id/doc metadata; it is a pure producer keyed by the mode that owns it.)

pub fn plugin_id(&self) -> PluginId

The host-issued id of the plugin behind this source.

pub async fn gutter_decorations( &self, buffer_id: u64, path: Option<&Path>, line_count: u32, ) -> Result<Vec<GutterDecoration>, String>

Produce the per-line gutter decorations for a buffer — the async producer the host calls OFF the render path. Projects the owned decoration-context from the buffer metadata, calls the guest, and converts the result to native GutterDecorations.

Graceful (§8, no flicker): the outer host error (trap / plugin-gone) and the inner guest WIT err both collapse to the String the caller logs — on an Err, the caller keeps the buffer’s prior cached snapshot rather than clearing it, so decoration cues never blink mid-refresh. A candidate that fails to cross (malformed record) fails the whole batch as a typed error, never a silent drop.

Trait Implementations

impl AsyncGutterDecorationSource for WasmDecorationSource

PL8.E: expose the WASM producer as the native AsyncGutterDecorationSource the host’s decoration registry holds — the same trait-object indirection the completion (AsyncCompletionSource) and picker (PickerSourceGenerator) seams use, so lattice-host and the renderers never name this crate.

fn source_id(&self) -> u64

Stable id of the producing plugin — the teardown key (GutterDecorationSourceRegistry::unregister). Two producers with the same id are the same plugin (reload replaces rather than duplicates).

fn produce( &self, buffer_id: u64, path: Option<PathBuf>, line_count: u32, ) -> DecorationFuture<'_>

Produce this buffer’s gutter decorations off the render path. path is the buffer’s on-disk path when it has one (a provider may key marks off it); line_count bounds the addressable lines. See DecorationFuture for the Ok/Err contract.

impl Clone for WasmDecorationSource

fn clone(&self) -> WasmDecorationSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WasmDecorationSource

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

Formats the value using the given formatter.