More robust status notifications

crates/rust-analyzer/src/op_queue.rs

@@ -2,27 +2,27 @@
 //! at a time.
 
 pub(crate) struct OpQueue<Args, Output> {
-    op_scheduled: Option<Args>,
+    op_requested: Option<Args>,
     op_in_progress: bool,
     last_op_result: Output,
 }
 
 impl<Args, Output: Default> Default for OpQueue<Args, Output> {
     fn default() -> Self {
-        Self { op_scheduled: None, op_in_progress: false, last_op_result: Default::default() }
+        Self { op_requested: None, op_in_progress: false, last_op_result: Default::default() }
     }
 }
 
 impl<Args, Output> OpQueue<Args, Output> {
     pub(crate) fn request_op(&mut self, data: Args) {
-        self.op_scheduled = Some(data);
+        self.op_requested = Some(data);
     }
     pub(crate) fn should_start_op(&mut self) -> Option<Args> {
         if self.op_in_progress {
             return None;
         }
-        self.op_in_progress = self.op_scheduled.is_some();
-        self.op_scheduled.take()
+        self.op_in_progress = self.op_requested.is_some();
+        self.op_requested.take()
     }
     pub(crate) fn op_completed(&mut self, result: Output) {
         assert!(self.op_in_progress);
@@ -34,4 +34,10 @@ impl<Args, Output> OpQueue<Args, Output> {
     pub(crate) fn last_op_result(&self) -> &Output {
         &self.last_op_result
     }
+    pub(crate) fn op_in_progress(&self) -> bool {
+        self.op_in_progress
+    }
+    pub(crate) fn op_requested(&self) -> bool {
+        self.op_requested.is_some()
+    }
 }