chore: add more `Debug` impls to `embassy-sync`, particularly on `OnceLock`

All tests green

1 files changed, 6 insertions, 0 deletions

diff --git a/embassy-sync/src/semaphore.rs b/embassy-sync/src/semaphore.rs
index d30eee30b..4e82b0fcd 100644
--- a/embassy-sync/src/semaphore.rs
+++ b/embassy-sync/src/semaphore.rs
@@ -46,6 +46,7 @@ pub trait Semaphore: Sized {
 /// A representation of a number of acquired permits.
 ///
 /// The acquired permits will be released back to the [`Semaphore`] when this is dropped.
+#[derive(Debug)]
 pub struct SemaphoreReleaser<'a, S: Semaphore> {
     semaphore: &'a S,
     permits: usize,
@@ -181,6 +182,7 @@ impl<M: RawMutex> Semaphore for GreedySemaphore<M> {
     }
 }
 
+#[derive(Debug)]
 struct SemaphoreState {
     permits: usize,
     waker: WakerRegistration,
@@ -221,6 +223,7 @@ impl SemaphoreState {
 ///
 /// Up to `N` tasks may attempt to acquire permits concurrently. If additional
 /// tasks attempt to acquire a permit, a [`WaitQueueFull`] error will be returned.
+#[derive(Debug)]
 pub struct FairSemaphore<M, const N: usize>
 where
     M: RawMutex,
@@ -341,6 +344,7 @@ impl<M: RawMutex, const N: usize> Semaphore for FairSemaphore<M, N> {
     }
 }
 
+#[derive(Debug)]
 struct FairAcquire<'a, M: RawMutex, const N: usize> {
     sema: &'a FairSemaphore<M, N>,
     permits: usize,
@@ -364,6 +368,7 @@ impl<'a, M: RawMutex, const N: usize> core::future::Future for FairAcquire<'a, M
     }
 }
 
+#[derive(Debug)]
 struct FairAcquireAll<'a, M: RawMutex, const N: usize> {
     sema: &'a FairSemaphore<M, N>,
     min: usize,
@@ -387,6 +392,7 @@ impl<'a, M: RawMutex, const N: usize> core::future::Future for FairAcquireAll<'a
     }
 }
 
+#[derive(Debug)]
 struct FairSemaphoreState<const N: usize> {
     permits: usize,
     next_ticket: usize,