Make wasm_sync private dependency

Cargo.toml

@@ -21,6 +21,9 @@ exclude = ["ci"]
 [dependencies]
 rayon-core = { version = "1.12.0", path = "rayon-core" }
 
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown", target_feature = "atomics"))'.dependencies]
+wasm_sync = "0.1.0"
+
 # This is a public dependency!
 [dependencies.either]
 version = "1.0"

rayon-core/src/lib.rs

@@ -108,14 +108,14 @@ pub use self::thread_pool::{yield_local, yield_now, Yield};
     target_os = "unknown",
     target_feature = "atomics"
 )))]
-pub use std::sync;
+use std::sync;
 
 #[cfg(all(
     target_arch = "wasm32",
     target_os = "unknown",
     target_feature = "atomics"
 ))]
-pub use wasm_sync as sync;
+use wasm_sync as sync;
 
 use self::registry::{CustomSpawn, DefaultSpawn, ThreadSpawn};
 

src/iter/par_bridge.rs

@@ -1,4 +1,17 @@
-use rayon_core::sync::Mutex;
+#[cfg(not(all(
+    target_arch = "wasm32",
+    target_os = "unknown",
+    target_feature = "atomics"
+)))]
+use std::sync::Mutex;
+
+#[cfg(all(
+    target_arch = "wasm32",
+    target_os = "unknown",
+    target_feature = "atomics"
+))]
+use wasm_sync::Mutex;
+
 use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
 
 use crate::iter::plumbing::{bridge_unindexed, Folder, UnindexedConsumer, UnindexedProducer};