Merge pull request #6 from asynchronics/feature/loom-as-dev-dep

Update Loom and make it a dev dependency

Cargo.toml

@@ -25,10 +25,8 @@ pin-project-lite = "0.2"
 tokio = { version = "1.0", features = ["full"] }
 futures-executor = "0.3"
 
-[target.'cfg(async_event_loom)'.dependencies]
-loom = "0.5"
-
 [target.'cfg(async_event_loom)'.dev-dependencies]
+loom = "0.7"
 waker-fn = "1.1"
 
 [lints.rust]

src/lib.rs

@@ -464,7 +464,7 @@ impl WaitSet {
     unsafe fn insert(&self, notifier: NonNull<Notifier>) {
         let mut list = self.list.lock().unwrap();
 
-        #[cfg(any(debug_assertions, async_event_loom))]
+        #[cfg(any(debug_assertions, all(test, async_event_loom)))]
         if notifier.as_ref().in_wait_set.load(Ordering::Relaxed) {
             drop(list); // avoids poisoning the lock
             panic!("the notifier was already in the wait set");

src/loom_exports.rs

@@ -1,4 +1,4 @@
-#[cfg(async_event_loom)]
+#[cfg(all(test, async_event_loom))]
 #[allow(unused_imports)]
 pub(crate) mod sync {
     pub(crate) use loom::sync::Mutex;
@@ -7,7 +7,7 @@ pub(crate) mod sync {
         pub(crate) use loom::sync::atomic::{fence, AtomicBool};
     }
 }
-#[cfg(not(async_event_loom))]
+#[cfg(not(all(test, async_event_loom)))]
 #[allow(unused_imports)]
 pub(crate) mod sync {
     pub(crate) use std::sync::Mutex;
@@ -51,7 +51,7 @@ pub(crate) mod sync {
 pub(crate) mod cell {
     pub(crate) use loom::cell::UnsafeCell;
 }
-#[cfg(not(async_event_loom))]
+#[cfg(not(all(test, async_event_loom)))]
 pub(crate) mod cell {
     #[derive(Debug)]
     pub(crate) struct UnsafeCell<T>(std::cell::UnsafeCell<T>);