[rustc.git] / vendor / rustc-rayon-core / src / private.rs

//! 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
        }
    }
}
Commit	Line	Data
e74abb32 XL	1	//! The public parts of this private module are used to create traits
	2	//! that cannot be implemented outside of our own crate. This way we
	3	//! can feel free to extend those traits without worrying about it
	4	//! being a breaking change for other implementations.
	5
	6	/// If this type is pub but not publicly reachable, third parties
	7	/// can't name it and can't implement traits using it.
	8	#[allow(missing_debug_implementations)]
	9	pub struct PrivateMarker;
	10
	11	macro_rules! private_decl {
	12	() => {
	13	/// This trait is private; this method exists to make it
	14	/// impossible to implement outside the crate.
	15	#[doc(hidden)]
6a06907d	16	fn __rayon_private__(&self) -> crate::private::PrivateMarker;
e74abb32 XL	17	}
	18	}
	19
	20	macro_rules! private_impl {
	21	() => {
6a06907d XL	22	fn __rayon_private__(&self) -> crate::private::PrivateMarker {
6a06907d XL	23	crate::private::PrivateMarker
e74abb32 XL	24	}
	25	}
	26	}