Struct WatcherSubscriptions 

pub struct WatcherSubscriptions {
    pub server_id: Arc<str>,
    /* private fields */
}

Snapshot of every active file-watcher registration for one server. Built by compile_for_server from the dynamic registry; consumed by the host’s notify-driven dispatcher.

Each match request walks the per-watcher kind bitmask; the compiled GlobSet runs N patterns in one pass.

Fields

server_id: Arc<str>

Server-stable id (e.g. "rust-analyzer"). Lets the dispatcher route the FileEvent batch back to the right ServerHandle. Cheap clone via Arc<str>.

Implementations

impl WatcherSubscriptions

pub fn is_empty(&self) -> bool

True when this server has no active watcher registrations. Cheap pre-check the dispatcher runs before walking the globset on every fs event.

pub fn len(&self) -> usize

Number of compiled watcher entries. Each entry was one FileSystemWatcher in a DidChangeWatchedFilesRegistrationOptions batch; one registration with two watchers produces two entries here.

pub fn matches( &self, absolute_path: &Path, change: FileChangeType, ) -> Vec<usize>

Match an absolute path against the subscription set. Returns the list of [lsp_types::FileEvent]s the server would expect for the given change kind – empty when no watcher matches OR every matching watcher has the change kind masked out.

Per LSP spec the event uses the server’s URI shape; the caller converts path to a file:// URI before emitting the notification.

pub fn fingerprint(&self) -> u64

Identity fingerprint – a hash of every (base, pattern, kind) tuple. The dispatcher caches this per server so a no-op tick (registry unchanged) skips the notify-watcher rebuild.

pub fn base_paths(&self) -> impl Iterator<Item = &Path> + '_

Borrow each watcher’s declared base path. Used by the dispatcher to compute the union of paths the notify::RecommendedWatcher must subscribe to.

Trait Implementations

impl Clone for WatcherSubscriptions

fn clone(&self) -> WatcherSubscriptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WatcherSubscriptions

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

Formats the value using the given formatter.