dnrops
/
rust
mirror of https://github.com/rust-lang/rust.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Bound Any with 'static 

This bound is already implicit through the AnyPrivate trait,
but since it is not explicit, you still have to write Box<Any + 'static>,
even though Any can only be 'static.

Introducing the 'static bound here makes this bound explicit, making
Box<Any> legal.
This commit is contained in:
Jonathan Reem 2014-09-08 21:05:32 -07:00
parent 88d1a22f76
commit 0cf60b6bb8
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/libcore/any.rs
View File

@ -91,7 +91,7 @@ pub enum Void { }
/// Every type with no non-`'static` references implements `Any`, so `Any` can
/// be used as a trait object to emulate the effects dynamic typing.
#[stable]
pub trait Any: AnyPrivate {}
pub trait Any: AnyPrivate + 'static {}
/// An inner trait to ensure that only this module can call `get_type_id()`.
pub trait AnyPrivate {
@ -132,7 +132,7 @@ pub trait AnyRefExt<'a> {
}
#[stable]
impl<'a> AnyRefExt<'a> for &'a Any+'a {
impl<'a> AnyRefExt<'a> for &'a Any {
#[inline]
#[stable]
fn is<T: 'static>(self) -> bool {
@ -181,7 +181,7 @@ pub trait AnyMutRefExt<'a> {
}
#[stable]
impl<'a> AnyMutRefExt<'a> for &'a mut Any+'a {
impl<'a> AnyMutRefExt<'a> for &'a mut Any {
#[inline]
#[unstable = "naming conventions around acquiring references may change"]
fn downcast_mut<T: 'static>(self) -> Option<&'a mut T> {