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add a comment explaining the three language server collections on project

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This commit is contained in:
Keith Simmons 2022-06-30 17:09:23 -07:00
parent 5e7651e92e
commit f495185a4e
1 changed files with 23 additions and 9 deletions
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32
crates/project/src/project.rs
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@ -65,19 +65,25 @@ pub trait Item: Entity {
fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
}
pub enum LanguageServerState {
Starting(Task<Option<Arc<LanguageServer>>>),
Running {
adapter: Arc<dyn LspAdapter>,
server: Arc<LanguageServer>,
},
}
pub struct ProjectStore {
db: Arc<Db>,
projects: Vec<WeakModelHandle<Project>>,
}
// Language server state is stored across 3 collections:
// language_servers =>
// a mapping from unique server id to LanguageServerState which can either be a task for a
// server in the process of starting, or a running server with adapter and language server arcs
// language_server_ids => a mapping from worktreeId and server name to the unique server id
// language_server_statuses => a mapping from unique server id to the current server status
//
// Multiple worktrees can map to the same language server for example when you jump to the definition
// of a file in the standard library. So language_server_ids is used to look up which server is active
// for a given worktree and language server name
//
// When starting a language server, first the id map is checked to make sure a server isn't already available
// for that worktree. If there is one, it finishes early. Otherwise, a new id is allocated and and
// the Starting variant of LanguageServerState is stored in the language_servers map.
pub struct Project {
worktrees: Vec<WorktreeHandle>,
active_entry: Option<ProjectEntryId>,
@ -180,12 +186,20 @@ pub enum Event {
ContactCancelledJoinRequest(Arc<User>),
}
pub enum LanguageServerState {
Starting(Task<Option<Arc<LanguageServer>>>),
Running {
adapter: Arc<dyn LspAdapter>,
server: Arc<LanguageServer>,
},
}
#[derive(Serialize)]
pub struct LanguageServerStatus {
pub name: String,
pub pending_work: BTreeMap<String, LanguageServerProgress>,
pub has_pending_diagnostic_updates: bool,
pub progress_tokens: HashSet<String>,
progress_tokens: HashSet<String>,
}
#[derive(Clone, Debug, Serialize)]