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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:37 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:37 +0000 |
commit | 246f239d9f40f633160f0c18f87a20922d4e77bb (patch) | |
tree | 5a88572663584b3d4d28e5a20e10abab1be40884 /vendor/anyhow/src/error.rs | |
parent | Releasing progress-linux version 1.64.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-246f239d9f40f633160f0c18f87a20922d4e77bb.tar.xz rustc-246f239d9f40f633160f0c18f87a20922d4e77bb.zip |
Merging debian version 1.65.0+dfsg1-2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | vendor/anyhow/src/error.rs | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/vendor/anyhow/src/error.rs b/vendor/anyhow/src/error.rs index 0971146c9..9f6ce8c10 100644 --- a/vendor/anyhow/src/error.rs +++ b/vendor/anyhow/src/error.rs @@ -5,6 +5,8 @@ use crate::ptr::Mut; use crate::ptr::{Own, Ref}; use crate::{Error, StdError}; use alloc::boxed::Box; +#[cfg(backtrace)] +use core::any::Demand; use core::any::TypeId; use core::fmt::{self, Debug, Display}; use core::mem::ManuallyDrop; @@ -31,7 +33,7 @@ impl Error { where E: StdError + Send + Sync + 'static, { - let backtrace = backtrace_if_absent!(error); + let backtrace = backtrace_if_absent!(&error); Error::from_std(error, backtrace) } @@ -522,6 +524,18 @@ impl Error { } } +#[cfg(backtrace)] +impl std::any::Provider for Error { + // Called by thiserror when you have `#[source] anyhow::Error`. This provide + // implementation includes the anyhow::Error's Backtrace if any, unlike + // deref'ing to dyn Error where the provide implementation would include + // only the original error's Backtrace from before it got wrapped into an + // anyhow::Error. + fn provide<'a>(&'a self, demand: &mut Demand<'a>) { + unsafe { ErrorImpl::provide(self.inner.by_ref(), demand) } + } +} + #[cfg(feature = "std")] #[cfg_attr(doc_cfg, doc(cfg(feature = "std")))] impl<E> From<E> for Error @@ -530,7 +544,7 @@ where { #[cold] fn from(error: E) -> Self { - let backtrace = backtrace_if_absent!(error); + let backtrace = backtrace_if_absent!(&error); Error::from_std(error, backtrace) } } @@ -886,13 +900,21 @@ impl ErrorImpl { .as_ref() .or_else(|| { #[cfg(backtrace)] - return Self::error(this).backtrace(); - #[cfg(all(not(backtrace), feature = "backtrace"))] + return Self::error(this).request_ref::<Backtrace>(); + #[cfg(not(backtrace))] return (vtable(this.ptr).object_backtrace)(this); }) .expect("backtrace capture failed") } + #[cfg(backtrace)] + unsafe fn provide<'a>(this: Ref<'a, Self>, demand: &mut Demand<'a>) { + if let Some(backtrace) = &this.deref().backtrace { + demand.provide_ref(backtrace); + } + Self::error(this).provide(demand); + } + #[cold] pub(crate) unsafe fn chain(this: Ref<Self>) -> Chain { Chain::new(Self::error(this)) @@ -903,14 +925,14 @@ impl<E> StdError for ErrorImpl<E> where E: StdError, { - #[cfg(backtrace)] - fn backtrace(&self) -> Option<&Backtrace> { - Some(unsafe { ErrorImpl::backtrace(self.erase()) }) - } - fn source(&self) -> Option<&(dyn StdError + 'static)> { unsafe { ErrorImpl::error(self.erase()).source() } } + + #[cfg(backtrace)] + fn provide<'a>(&'a self, demand: &mut Demand<'a>) { + unsafe { ErrorImpl::provide(self.erase(), demand) } + } } impl<E> Debug for ErrorImpl<E> |