//! cloneable `Any` and with the `Send` and `Sync` bounds possible on both `Any` and `CloneAny`.
use std::fmt;
-use std::any::Any as StdAny;
+use std::any::Any;
#[doc(hidden)]
pub trait CloneToAny {
unsafe { Box::from_raw(raw as *mut $t) }
}
}
+
+ impl fmt::Debug for $t {
+ #[inline]
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ f.pad(stringify!($t))
+ }
+ }
}
}
macro_rules! implement {
($base:ident, $(+ $bounds:ident)*) => {
- impl fmt::Debug for dyn $base $(+ $bounds)* {
- #[inline]
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- f.pad(stringify!(dyn $base $(+ $bounds)*))
- }
- }
-
impl UncheckedAnyExt for dyn $base $(+ $bounds)* {
#[inline]
unsafe fn downcast_ref_unchecked<T: 'static>(&self) -> &T {
}
}
-/// A type to emulate dynamic typing.
-///
-/// Every type with no non-`'static` references implements `Any`.
-/// See the [`std::any` documentation](https://doc.rust-lang.org/std/any/index.html) for
-/// more details on `Any` in general.
-///
-/// This trait is not `std::any::Any` but rather a type extending that for this library’s
-/// purposes so that it can be combined with marker traits like
-/// <code><a class=trait title=core::marker::Send
-/// href=http://doc.rust-lang.org/std/marker/trait.Send.html>Send</a></code> and
-/// <code><a class=trait title=core::marker::Sync
-/// href=http://doc.rust-lang.org/std/marker/trait.Sync.html>Sync</a></code>.
-///
-/// See also [`CloneAny`](trait.CloneAny.html) for a cloneable version of this trait.
-pub trait Any: StdAny { }
-impl<T: StdAny> Any for T { }
implement!(Any,);
implement!(Any, + Send);
-implement!(Any, + Sync);
implement!(Any, + Send + Sync);
-/// A type to emulate dynamic typing with cloning.
-///
-/// Every type with no non-`'static` references that implements `Clone` implements `Any`.
-/// See the [`std::any` documentation](https://doc.rust-lang.org/std/any/index.html) for
-/// more details on `Any` in general.
-///
-/// This trait is not `std::any::Any` but rather a type extending that for this library’s
-/// purposes so that it can be combined with marker traits like
-/// <code><a class=trait title=core::marker::Send
-/// href=http://doc.rust-lang.org/std/marker/trait.Send.html>Send</a></code> and
-/// <code><a class=trait title=core::marker::Sync
-/// href=http://doc.rust-lang.org/std/marker/trait.Sync.html>Sync</a></code>.
+/// [`Any`], but with cloning.
///
-/// See also [`Any`](trait.Any.html) for a version without the `Clone` requirement.
+/// Every type with no non-`'static` references that implements `Clone` implements `CloneAny`.
+/// See [`std::any`] for more details on `Any` in general.
pub trait CloneAny: Any + CloneToAny { }
-impl<T: StdAny + Clone> CloneAny for T { }
+impl<T: Any + Clone> CloneAny for T { }
implement!(CloneAny,);
implement!(CloneAny, + Send);
-implement!(CloneAny, + Sync);
implement!(CloneAny, + Send + Sync);
impl_clone!(dyn CloneAny);
impl_clone!(dyn CloneAny + Send);
-impl_clone!(dyn CloneAny + Sync);
impl_clone!(dyn CloneAny + Send + Sync);