suggest hex escapes for C-style escapes by euclio · Pull Request #156376 · rust-lang/rust

euclio · 2026-05-09T21:42:48Z

rustbot · 2026-05-09T21:42:51Z

The parser was modified, potentially altering the grammar of (stable) Rust
which would be a breaking change.

rustbot · 2026-05-09T21:42:54Z

r? @mu001999

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asquared31415 · 2026-05-09T22:57:55Z

I don't think that the "(perhaps transcribing from another language)" part is useful to the diagnostic. It should be clear from context that Rust simply does this differently.

mu001999

Thanks! Just some nits

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mu001999 · 2026-05-10T00:47:47Z

@rustbot author

rustbot · 2026-05-10T00:47:51Z

Reminder, once the PR becomes ready for a review, use @rustbot ready.

euclio · 2026-05-10T20:32:35Z

@rustbot ready

mu001999

Thanks!

@bors r+ rollup

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rust-bors · 2026-05-11T02:35:01Z

📌 Commit 08c3cfc has been approved by mu001999

It is now in the queue for this repository.

suggest hex escapes for C-style escapes Fixes rust-lang#148884.

mu001999 · 2026-05-11T05:03:42Z

@bors r-

rust-bors · 2026-05-11T05:03:49Z

This pull request was unapproved.

This PR was contained in a rollup (#156432), which was unapproved.

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mu001999

Just some nits

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rustbot · 2026-05-16T17:50:18Z

This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

euclio · 2026-05-16T17:51:25Z

@rustbot ready

mu001999

Please check the above comment

@rustbot author

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euclio · 2026-05-17T00:24:39Z

Whoops, fixed!

@rustbot ready

mu001999 · 2026-05-17T00:29:31Z

Thanks!

@bors r+

rust-bors · 2026-05-17T00:29:33Z

📌 Commit e599831 has been approved by mu001999

It is now in the queue for this repository.

suggest hex escapes for C-style escapes Fixes rust-lang#148884.

…uwer Rollup of 14 pull requests Successful merges: - #151742 (Remove redundant information in `rustc_abi::Variants`) - #151362 (Add interior-mutability suggestion to `static_mut_refs`) - #156121 (compiler: suggest `.collect()` when `String` is expected and `Iterator` is found) - #156208 (Emit retags in codegen to support BorrowSanitizer (part 1)) - #156596 (Split `LintExpectationId`s) - #156607 (ci: Update FreeBSD version to FreeBSD 14) - #156376 (suggest hex escapes for C-style escapes) - #156577 (Test EII UI tests with prefer-dynamic) - #156585 (explicit tail calls: ignore some tests on unsupported LLVM targets) - #156598 (Avoid rustfix suggestions for macro-expanded unused imports) - #156616 (rustdoc: add test case for `-Drustdoc::` and `--cap-lints`) - #156633 (Add regression test for issue #41261) - #156635 (rename unexpected_try_recover function) - #156636 (minor `rustc_mir_transform` cleanup)

Rollup merge of #156376 - euclio:foreign-escapes, r=mu001999 suggest hex escapes for C-style escapes Fixes #148884.

…uwer Rollup of 14 pull requests Successful merges: - rust-lang/rust#151742 (Remove redundant information in `rustc_abi::Variants`) - rust-lang/rust#151362 (Add interior-mutability suggestion to `static_mut_refs`) - rust-lang/rust#156121 (compiler: suggest `.collect()` when `String` is expected and `Iterator` is found) - rust-lang/rust#156208 (Emit retags in codegen to support BorrowSanitizer (part 1)) - rust-lang/rust#156596 (Split `LintExpectationId`s) - rust-lang/rust#156607 (ci: Update FreeBSD version to FreeBSD 14) - rust-lang/rust#156376 (suggest hex escapes for C-style escapes) - rust-lang/rust#156577 (Test EII UI tests with prefer-dynamic) - rust-lang/rust#156585 (explicit tail calls: ignore some tests on unsupported LLVM targets) - rust-lang/rust#156598 (Avoid rustfix suggestions for macro-expanded unused imports) - rust-lang/rust#156616 (rustdoc: add test case for `-Drustdoc::` and `--cap-lints`) - rust-lang/rust#156633 (Add regression test for issue rust-lang/rust#41261) - rust-lang/rust#156635 (rename unexpected_try_recover function) - rust-lang/rust#156636 (minor `rustc_mir_transform` cleanup)

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euclio force-pushed the foreign-escapes branch from 774186b to 1ee8da5 Compare May 10, 2026 04:15

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euclio force-pushed the foreign-escapes branch from 1ee8da5 to 08c3cfc Compare May 10, 2026 15:54

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JonathanBrouwer added a commit to JonathanBrouwer/rust that referenced this pull request May 11, 2026

Rollup merge of rust-lang#156376 - euclio:foreign-escapes, r=mu001999

2b01afd

suggest hex escapes for C-style escapes Fixes rust-lang#148884.

JonathanBrouwer mentioned this pull request May 11, 2026

Rollup of 8 pull requests #156432

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Comment thread compiler/rustc_parse/src/lexer/unescape_error_reporting.rs

Comment thread compiler/rustc_parse/src/lexer/unescape_error_reporting.rs

mu001999 reviewed May 11, 2026

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Comment thread compiler/rustc_parse/src/lexer/unescape_error_reporting.rs Outdated

rustbot added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 15, 2026

euclio force-pushed the foreign-escapes branch from 2c3bd8e to 8338f50 Compare May 16, 2026 17:50

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mu001999 requested changes May 17, 2026

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suggest hex escapes for C-style escapes

e599831

euclio force-pushed the foreign-escapes branch from 8338f50 to e599831 Compare May 17, 2026 00:24

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JonathanBrouwer added a commit to JonathanBrouwer/rust that referenced this pull request May 17, 2026

Rollup merge of rust-lang#156376 - euclio:foreign-escapes, r=mu001999

67d55b1

suggest hex escapes for C-style escapes Fixes rust-lang#148884.

JonathanBrouwer mentioned this pull request May 17, 2026

Rollup of 11 pull requests #156658

Closed

JonathanBrouwer added a commit to JonathanBrouwer/rust that referenced this pull request May 17, 2026

Rollup merge of rust-lang#156376 - euclio:foreign-escapes, r=mu001999

5ac3b46

suggest hex escapes for C-style escapes Fixes rust-lang#148884.

This was referenced May 17, 2026

Rollup of 9 pull requests #156663

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Rollup of 14 pull requests #156670

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rust-bors Bot merged commit 4bb8551 into rust-lang:main May 18, 2026
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rustbot added this to the 1.97.0 milestone May 18, 2026

rust-timer added a commit that referenced this pull request May 18, 2026

Unrolled build for #156376

79e3c74

Rollup merge of #156376 - euclio:foreign-escapes, r=mu001999 suggest hex escapes for C-style escapes Fixes #148884.

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