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Remove BorrowckErrors::tainted_by_errors #120573

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nnethercote
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This PR removes one of the tainted_by_errors occurrences, replacing it with direct use of ErrorGuaranteed.

r? @oli-obk

It has no effect. Note that `infcx.set_tainted_by_errors()` is still
called, so taintedness is still being propagated.
@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Feb 2, 2024
@nnethercote
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I hope this doesn't overlap with any of the has_errors stuff you've been doing recently, @oli-obk.

`BorrowckErrors` stores a mix of error and non-error diags in
`buffered`. As a result, it downgrades `DiagnosticBuilder`s to
`Diagnostic`s, losing the emission guarantees, and so has to use a
`tainted_by_errors` field to record whether an error has occurred.

This commit splits `buffered` into `buffered_errors` and
`buffered_non_errors`, keeping them as `DiagnosticBuilder`s and
preserving the emission guarantees.

This also requires fixing a bunch of incorrect lifetimes on
`DiagnosticBuilder` use points.
And some related things. Because it can hold non-error diagnostics.
@nnethercote nnethercote force-pushed the rm-BorrowckErrors-tainted_by_errors branch from d599958 to b6a4f03 Compare February 2, 2024 03:36
@oli-obk
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oli-obk commented Feb 2, 2024

I hope this doesn't overlap with any of the has_errors stuff you've been doing recently, @oli-obk.

Nope, this is great!

@bors r+ rollup

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bors commented Feb 2, 2024

📌 Commit b6a4f03 has been approved by oli-obk

It is now in the queue for this repository.

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bors commented Feb 2, 2024

🌲 The tree is currently closed for pull requests below priority 100. This pull request will be tested once the tree is reopened.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Feb 2, 2024
bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 4, 2024
…iaskrgr

Rollup of 10 pull requests

Successful merges:

 - rust-lang#119543 (add avx512fp16 to x86 target features)
 - rust-lang#120004 (Release notes for 1.76)
 - rust-lang#120562 (Revert unsound libcore changes)
 - rust-lang#120566 (coverage: Use normal `edition:` headers in coverage tests)
 - rust-lang#120570 (Suggest changing type to const parameters if we encounter a type in the trait bound position)
 - rust-lang#120571 (Miscellaneous diagnostics cleanups)
 - rust-lang#120573 (Remove `BorrowckErrors::tainted_by_errors`)
 - rust-lang#120592 (Remove unnecessary `.to_string()`/`.as_str()`s)
 - rust-lang#120610 (hir: Remove the generic type parameter from `MaybeOwned`)
 - rust-lang#120616 (Fix ICE on field access on a tainted type after const-eval failure)

Failed merges:

 - rust-lang#120569 (coverage: Improve handling of function/closure spans)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 4, 2024
…iaskrgr

Rollup of 10 pull requests

Successful merges:

 - rust-lang#119543 (add avx512fp16 to x86 target features)
 - rust-lang#120004 (Release notes for 1.76)
 - rust-lang#120562 (Revert unsound libcore changes)
 - rust-lang#120566 (coverage: Use normal `edition:` headers in coverage tests)
 - rust-lang#120570 (Suggest changing type to const parameters if we encounter a type in the trait bound position)
 - rust-lang#120571 (Miscellaneous diagnostics cleanups)
 - rust-lang#120573 (Remove `BorrowckErrors::tainted_by_errors`)
 - rust-lang#120592 (Remove unnecessary `.to_string()`/`.as_str()`s)
 - rust-lang#120610 (hir: Remove the generic type parameter from `MaybeOwned`)
 - rust-lang#120616 (Fix ICE on field access on a tainted type after const-eval failure)

Failed merges:

 - rust-lang#120569 (coverage: Improve handling of function/closure spans)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 019d281 into rust-lang:master Feb 4, 2024
11 checks passed
@rustbot rustbot added this to the 1.78.0 milestone Feb 4, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Feb 4, 2024
Rollup merge of rust-lang#120573 - nnethercote:rm-BorrowckErrors-tainted_by_errors, r=oli-obk

Remove `BorrowckErrors::tainted_by_errors`

This PR removes one of the `tainted_by_errors` occurrences, replacing it with direct use of `ErrorGuaranteed`.

r? `@oli-obk`
@nnethercote nnethercote deleted the rm-BorrowckErrors-tainted_by_errors branch February 4, 2024 21:11
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4 participants