diff options
Diffstat (limited to 'src/liballoc')
| -rw-r--r-- | src/liballoc/boxed.rs | 26 | ||||
| -rw-r--r-- | src/liballoc/boxed_test.rs | 1 |
2 files changed, 6 insertions, 21 deletions
diff --git a/src/liballoc/boxed.rs b/src/liballoc/boxed.rs index f9bd0ab2f1e..48dce3d8815 100644 --- a/src/liballoc/boxed.rs +++ b/src/liballoc/boxed.rs @@ -233,24 +233,10 @@ impl<T: ?Sized + Hash> Hash for Box<T> { } } -/// Extension methods for an owning `Any` trait object. -#[unstable(feature = "alloc", - reason = "this trait will likely disappear once compiler bugs blocking \ - a direct impl on `Box<Any>` have been fixed ")] -// FIXME(#18737): this should be a direct impl on `Box<Any>`. If you're -// removing this please make sure that you can downcase on -// `Box<Any + Send>` as well as `Box<Any>` -pub trait BoxAny { - /// Returns the boxed value if it is of type `T`, or - /// `Err(Self)` if it isn't. - #[stable(feature = "rust1", since = "1.0.0")] - fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>>; -} - -#[stable(feature = "rust1", since = "1.0.0")] -impl BoxAny for Box<Any> { +impl Box<Any> { #[inline] - fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>> { + #[stable(feature = "rust1", since = "1.0.0")] + pub fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>> { if self.is::<T>() { unsafe { // Get the raw representation of the trait object @@ -267,10 +253,10 @@ impl BoxAny for Box<Any> { } } -#[stable(feature = "rust1", since = "1.0.0")] -impl BoxAny for Box<Any+Send> { +impl Box<Any+Send> { #[inline] - fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>> { + #[stable(feature = "rust1", since = "1.0.0")] + pub fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>> { <Box<Any>>::downcast(self) } } diff --git a/src/liballoc/boxed_test.rs b/src/liballoc/boxed_test.rs index bb1ff9428a7..682d5f407c4 100644 --- a/src/liballoc/boxed_test.rs +++ b/src/liballoc/boxed_test.rs @@ -17,7 +17,6 @@ use core::clone::Clone; use std::boxed; use std::boxed::Box; -use std::boxed::BoxAny; #[test] fn test_owned_clone() { |
