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Rollup merge of #122194 - oli-obk:stash_delay_bug, r=nnethercote

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Enable creating backtraces via -Ztreat-err-as-bug when stashing errors

r? `@nnethercote`

Otherwise I can't debug stashed errors because I can't find their source
This commit is contained in:
Matthias Krüger 2024-03-12 06:29:03 +01:00 committed by GitHub
parent 60f4b7a56e cfbc1b96d5
commit 0b127d82f3
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1 changed files with 4 additions and 7 deletions
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11
compiler/rustc_errors/src/lib.rs
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@ -769,13 +769,10 @@ pub fn stash_diagnostic(
format!("invalid level in `stash_diagnostic`: {:?}", diag.level),
);
}
Error => {
// This `unchecked_error_guaranteed` is valid. It is where the
// `ErrorGuaranteed` for stashed errors originates. See
// `DiagCtxtInner::drop`.
#[allow(deprecated)]
Some(ErrorGuaranteed::unchecked_error_guaranteed())
}
// We delay a bug here so that `-Ztreat-err-as-bug -Zeagerly-emit-delayed-bugs`
// can be used to create a backtrace at the stashing site insted of whenever the
// diagnostic context is dropped and thus delayed bugs are emitted.
Error => Some(self.span_delayed_bug(span, "stashing {key:?}")),
DelayedBug => return self.inner.borrow_mut().emit_diagnostic(diag),
ForceWarning(_) | Warning | Note | OnceNote | Help | OnceHelp | FailureNote | Allow
| Expect(_) => None,