crates/ra_lsp_server/src/main_loop/subscriptions.rs


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use ra_ide_api::FileId;
use rustc_hash::FxHashSet;

pub struct Subscriptions {
    subs: FxHashSet<FileId>,
}

impl Subscriptions {
    pub fn new() -> Subscriptions {
        Subscriptions {
            subs: FxHashSet::default(),
        }
    }
    pub fn add_sub(&mut self, file_id: FileId) {
        self.subs.insert(file_id);
    }
    pub fn remove_sub(&mut self, file_id: FileId) {
        self.subs.remove(&file_id);
    }
    pub fn subscriptions(&self) -> Vec<FileId> {
        self.subs.iter().cloned().collect()
    }
}