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fix broken doc comment

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This commit is contained in:
Jane Lusby 2022-06-13 14:47:51 -07:00
parent fb2d2e53fd
commit e3839ccc83
1 changed files with 10 additions and 9 deletions
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19
library/std/src/error.rs
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@ -298,13 +298,14 @@ pub trait Error: Debug + Display {
/// Provides type based access to context intended for error reports.
///
/// Used in conjunction with [`provide_value`] and [`provide_ref`] to extract
/// Used in conjunction with [`Demand::provide_value`] and [`Demand::provide_ref`] to extract
/// references to member variables from `dyn Error` trait objects.
///
/// # Example
///
/// ```rust
/// #![feature(provide_any)]
/// #![feature(error_generic_member_access)]
/// use core::fmt;
/// use core::any::Demand;
///
@ -363,11 +364,11 @@ pub trait Error: Debug + Display {
/// assert!(core::ptr::eq(&error.backtrace, backtrace_ref));
/// }
/// ```
#[unstable(feature = "generic_member_access", issue = "none")]
#[unstable(feature = "error_generic_member_access", issue = "none")]
fn provide<'a>(&'a self, _req: &mut Demand<'a>) {}
}
#[unstable(feature = "generic_member_access", issue = "none")]
#[unstable(feature = "error_generic_member_access", issue = "none")]
impl Provider for dyn Error + 'static {
fn provide<'a>(&'a self, req: &mut Demand<'a>) {
self.provide(req)
@ -910,13 +911,13 @@ impl dyn Error + 'static {
}
/// Request a reference to context of type `T`.
#[unstable(feature = "generic_member_access", issue = "none")]
#[unstable(feature = "error_generic_member_access", issue = "none")]
pub fn request_ref<T: ?Sized + 'static>(&self) -> Option<&T> {
core::any::request_ref(self)
}
/// Request a value to context of type `T`.
#[unstable(feature = "generic_member_access", issue = "none")]
#[unstable(feature = "error_generic_member_access", issue = "none")]
pub fn request_value<T: 'static>(&self) -> Option<T> {
core::any::request_value(self)
}
@ -945,13 +946,13 @@ impl dyn Error + 'static + Send {
}
/// Request a reference to context of type `T`.
#[unstable(feature = "generic_member_access", issue = "none")]
#[unstable(feature = "error_generic_member_access", issue = "none")]
pub fn request_ref<T: ?Sized + 'static>(&self) -> Option<&T> {
<dyn Error + 'static>::request_ref(self)
}
/// Request a value to context of type `T`.
#[unstable(feature = "generic_member_access", issue = "none")]
#[unstable(feature = "error_generic_member_access", issue = "none")]
pub fn request_value<T: 'static>(&self) -> Option<T> {
<dyn Error + 'static>::request_value(self)
}
@ -980,13 +981,13 @@ impl dyn Error + 'static + Send + Sync {
}
/// Request a reference to context of type `T`.
#[unstable(feature = "generic_member_access", issue = "none")]
#[unstable(feature = "error_generic_member_access", issue = "none")]
pub fn request_ref<T: ?Sized + 'static>(&self) -> Option<&T> {
<dyn Error + 'static>::request_ref(self)
}
/// Request a value to context of type `T`.
#[unstable(feature = "generic_member_access", issue = "none")]
#[unstable(feature = "error_generic_member_access", issue = "none")]
pub fn request_value<T: 'static>(&self) -> Option<T> {
<dyn Error + 'static>::request_value(self)
}