task: stabilize task::Id related apis (#6891)

Author: mox692

tokio/src/runtime/scheduler/current_thread/mod.rs

@@ -447,7 +447,6 @@ impl Handle {
         let (handle, notified) = me.shared.owned.bind(future, me.clone(), id);
 
         me.task_hooks.spawn(&TaskMeta {
-            #[cfg(tokio_unstable)]
             id,
             _phantom: Default::default(),
         });

tokio/src/runtime/scheduler/multi_thread/handle.rs

@@ -56,7 +56,6 @@ impl Handle {
         let (handle, notified) = me.shared.owned.bind(future, me.clone(), id);
 
         me.task_hooks.spawn(&TaskMeta {
-            #[cfg(tokio_unstable)]
             id,
             _phantom: Default::default(),
         });

tokio/src/runtime/task/error.rs

@@ -123,14 +123,7 @@ impl JoinError {
     /// Returns a [task ID] that identifies the task which errored relative to
     /// other currently spawned tasks.
     ///
-    /// **Note**: This is an [unstable API][unstable]. The public API of this type
-    /// may break in 1.x releases. See [the documentation on unstable
-    /// features][unstable] for details.
-    ///
     /// [task ID]: crate::task::Id
-    /// [unstable]: crate#unstable-features
-    #[cfg(tokio_unstable)]
-    #[cfg_attr(docsrs, doc(cfg(tokio_unstable)))]
     pub fn id(&self) -> Id {
         self.id
     }

tokio/src/runtime/task/harness.rs

@@ -337,7 +337,6 @@ where
         if let Some(f) = self.trailer().hooks.task_terminate_callback.as_ref() {
             let _ = panic::catch_unwind(panic::AssertUnwindSafe(|| {
                 f(&TaskMeta {
-                    #[cfg(tokio_unstable)]
                     id: self.core().task_id,
                     _phantom: Default::default(),
                 })

tokio/src/runtime/task_hooks.rs

@@ -19,14 +19,13 @@ pub(crate) struct TaskHooks {
 #[cfg_attr(not(tokio_unstable), allow(unreachable_pub))]
 pub struct TaskMeta<'a> {
     /// The opaque ID of the task.
-    #[cfg(tokio_unstable)]
     pub(crate) id: super::task::Id,
     pub(crate) _phantom: PhantomData<&'a ()>,
 }
 
 impl<'a> TaskMeta<'a> {
     /// Return the opaque ID of the task.
-    #[cfg(tokio_unstable)]
+    #[cfg_attr(not(tokio_unstable), allow(unreachable_pub, dead_code))]
     pub fn id(&self) -> super::task::Id {
         self.id
     }

tokio/src/task/join_set.rs

@@ -10,7 +10,6 @@ use std::task::{Context, Poll};
 use std::{fmt, panic};
 
 use crate::runtime::Handle;
-#[cfg(tokio_unstable)]
 use crate::task::Id;
 use crate::task::{unconstrained, AbortHandle, JoinError, JoinHandle, LocalSet};
 use crate::util::IdleNotifiedSet;
@@ -300,8 +299,6 @@ impl<T: 'static> JoinSet<T> {
     ///
     /// [task ID]: crate::task::Id
     /// [`JoinError::id`]: fn@crate::task::JoinError::id
-    #[cfg(tokio_unstable)]
-    #[cfg_attr(docsrs, doc(cfg(tokio_unstable)))]
     pub async fn join_next_with_id(&mut self) -> Option<Result<(Id, T), JoinError>> {
         std::future::poll_fn(|cx| self.poll_join_next_with_id(cx)).await
     }
@@ -338,8 +335,6 @@ impl<T: 'static> JoinSet<T> {
     ///
     /// [task ID]: crate::task::Id
     /// [`JoinError::id`]: fn@crate::task::JoinError::id
-    #[cfg(tokio_unstable)]
-    #[cfg_attr(docsrs, doc(cfg(tokio_unstable)))]
     pub fn try_join_next_with_id(&mut self) -> Option<Result<(Id, T), JoinError>> {
         // Loop over all notified `JoinHandle`s to find one that's ready, or until none are left.
         loop {
@@ -544,8 +539,6 @@ impl<T: 'static> JoinSet<T> {
     ///
     /// [coop budget]: crate::task#cooperative-scheduling
     /// [task ID]: crate::task::Id
-    #[cfg(tokio_unstable)]
-    #[cfg_attr(docsrs, doc(cfg(tokio_unstable)))]
     pub fn poll_join_next_with_id(
         &mut self,
         cx: &mut Context<'_>,