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-rw-r--r--third_party/rust/rayon/src/private.rs26
1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/rust/rayon/src/private.rs b/third_party/rust/rayon/src/private.rs
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+++ b/third_party/rust/rayon/src/private.rs
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+//! The public parts of this private module are used to create traits
+//! that cannot be implemented outside of our own crate. This way we
+//! can feel free to extend those traits without worrying about it
+//! being a breaking change for other implementations.
+
+/// If this type is pub but not publicly reachable, third parties
+/// can't name it and can't implement traits using it.
+#[allow(missing_debug_implementations)]
+pub struct PrivateMarker;
+
+macro_rules! private_decl {
+ () => {
+ /// This trait is private; this method exists to make it
+ /// impossible to implement outside the crate.
+ #[doc(hidden)]
+ fn __rayon_private__(&self) -> crate::private::PrivateMarker;
+ };
+}
+
+macro_rules! private_impl {
+ () => {
+ fn __rayon_private__(&self) -> crate::private::PrivateMarker {
+ crate::private::PrivateMarker
+ }
+ };
+}