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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:59:24 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:59:24 +0000 |
commit | 023939b627b7dc93b01471f7d41fb8553ddb4ffa (patch) | |
tree | 60fc59477c605c72b0a1051409062ddecc43f877 /library/std/src/error.rs | |
parent | Adding debian version 1.72.1+dfsg1-1. (diff) | |
download | rustc-023939b627b7dc93b01471f7d41fb8553ddb4ffa.tar.xz rustc-023939b627b7dc93b01471f7d41fb8553ddb4ffa.zip |
Merging upstream version 1.73.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/std/src/error.rs')
-rw-r--r-- | library/std/src/error.rs | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/library/std/src/error.rs b/library/std/src/error.rs index 05f8fd8de..375ff2d24 100644 --- a/library/std/src/error.rs +++ b/library/std/src/error.rs @@ -9,6 +9,8 @@ use crate::fmt::{self, Write}; #[stable(feature = "rust1", since = "1.0.0")] pub use core::error::Error; +#[unstable(feature = "error_generic_member_access", issue = "99301")] +pub use core::error::{request_ref, request_value, Request}; mod private { // This is a hack to prevent `type_id` from being overridden by `Error` @@ -121,7 +123,8 @@ mod private { /// This example produces the following output: /// /// ```console -/// thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: SuperError is here!: SuperErrorSideKick is here!', src/error.rs:34:40 +/// thread 'main' panicked at src/error.rs:34:40: +/// called `Result::unwrap()` on an `Err` value: SuperError is here!: SuperErrorSideKick is here! /// note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace /// ``` /// @@ -370,11 +373,10 @@ impl<E> Report<E> { /// /// ```rust /// #![feature(error_reporter)] - /// #![feature(provide_any)] /// #![feature(error_generic_member_access)] /// # use std::error::Error; /// # use std::fmt; - /// use std::any::Demand; + /// use std::error::Request; /// use std::error::Report; /// use std::backtrace::Backtrace; /// @@ -404,8 +406,8 @@ impl<E> Report<E> { /// } /// /// impl Error for SuperErrorSideKick { - /// fn provide<'a>(&'a self, demand: &mut Demand<'a>) { - /// demand.provide_ref::<Backtrace>(&self.backtrace); + /// fn provide<'a>(&'a self, request: &mut Request<'a>) { + /// request.provide_ref::<Backtrace>(&self.backtrace); /// } /// } /// @@ -458,11 +460,11 @@ where fn backtrace(&self) -> Option<&Backtrace> { // have to grab the backtrace on the first error directly since that error may not be // 'static - let backtrace = (&self.error as &dyn Error).request_ref(); + let backtrace = request_ref(&self.error); let backtrace = backtrace.or_else(|| { self.error .source() - .map(|source| source.sources().find_map(|source| source.request_ref())) + .map(|source| source.sources().find_map(|source| request_ref(source))) .flatten() }); backtrace |