Use portable_atomic instead of atomic-polyfill

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 - 
 
+## 1.19.0
+
+- Use `portable-atomic` instead of `atomic-polyfill`, [#251](https://github.com/matklad/once_cell/pull/251).
+
 ## 1.18.0
 
 - `MSRV` is updated to 1.60.0 to take advantage of `dep:` syntax for cargo features,

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "once_cell"
-version = "1.18.0"
+version = "1.19.0"
 authors = ["Aleksey Kladov <aleksey.kladov@gmail.com>"]
 license = "MIT OR Apache-2.0"
 edition = "2021"
@@ -21,7 +21,7 @@ members = ["xtask"]
 
 [dependencies]
 parking_lot_core = { version = "0.9.3", optional = true, default_features = false }
-atomic-polyfill = { version = "1", optional = true }
+portable-atomic = { version = "1", optional = true }
 critical-section = { version = "1", optional = true }
 
 [dev-dependencies]
@@ -48,7 +48,7 @@ parking_lot = ["dep:parking_lot_core"]
 # Uses `critical-section` to implement `sync` and `race` modules. in
 # `#![no_std]` mode. Please read `critical-section` docs carefully
 # before enabling this feature.
-critical-section = ["dep:critical-section", "dep:atomic-polyfill" ]
+critical-section = ["dep:critical-section", "portable-atomic" ]
 
 # Enables semver-exempt APIs of this crate.
 # At the moment, this feature is unused.

src/imp_cs.rs

@@ -1,6 +1,6 @@
 use core::panic::{RefUnwindSafe, UnwindSafe};
 
-use atomic_polyfill::{AtomicBool, Ordering};
+use portable_atomic::{AtomicBool, Ordering};
 use critical_section::{CriticalSection, Mutex};
 
 use crate::unsync;

src/race.rs

@@ -20,7 +20,7 @@
 //! architectures versus `Relaxed`.
 
 #[cfg(feature = "critical-section")]
-use atomic_polyfill as atomic;
+use portable_atomic as atomic;
 #[cfg(not(feature = "critical-section"))]
 use core::sync::atomic;