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Fix bug in Parser::look_ahead. #128994

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merged 1 commit into from
Aug 12, 2024

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nnethercote
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@nnethercote nnethercote commented Aug 12, 2024

The special case was failing to handle invisible delimiters on one path.

Fixes (but doesn't close until beta backported) #128895.

r? @davidtwco

@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 Aug 12, 2024
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Is it possible to have a regression test for this?

@compiler-errors compiler-errors added the beta-nominated Nominated for backporting to the compiler in the beta channel. label Aug 12, 2024
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Yeah, please minimize a test from the beta regression. I've also nominated this for beta backport, and edited the PR description not to auto-close the beta regression since that's not fixed until backport is complete.

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Yeah, I'm working on a test case.

The special case was failing to handle invisible delimiters on one path.

Fixes rust-lang#128895.
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Ok, test is up.

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thanks! @bors r+

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bors commented Aug 12, 2024

📌 Commit 46b4c5a has been approved by compiler-errors

It is now in the queue for this repository.

@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 Aug 12, 2024
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 12, 2024
…llaumeGomez

Rollup of 10 pull requests

Successful merges:

 - rust-lang#128149 (nontemporal_store: make sure that the intrinsic is truly just a hint)
 - rust-lang#128394 (Unify run button display with "copy code" button and with mdbook buttons)
 - rust-lang#128537 (const vector passed through to codegen)
 - rust-lang#128632 (std: do not overwrite style in `get_backtrace_style`)
 - rust-lang#128878 (Slightly refactor `Flags` in bootstrap)
 - rust-lang#128886 (Get rid of some `#[allow(rustc::untranslatable_diagnostic)]`)
 - rust-lang#128929 (Fix codegen-units tests that were disabled 8 years ago)
 - rust-lang#128937 (Fix warnings in rmake tests on `x86_64-unknown-linux-gnu`)
 - rust-lang#128978 (Use `assert_matches` around the compiler more)
 - rust-lang#128994 (Fix bug in `Parser::look_ahead`.)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 99a785d into rust-lang:master Aug 12, 2024
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rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Aug 12, 2024
Rollup merge of rust-lang#128994 - nnethercote:fix-Parser-look_ahead-more, r=compiler-errors

Fix bug in `Parser::look_ahead`.

The special case was failing to handle invisible delimiters on one path.

Fixes (but doesn't close until beta backported) rust-lang#128895.

r? `@davidtwco`
@rustbot rustbot added this to the 1.82.0 milestone Aug 12, 2024
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Beta backport accepted as per compiler team on Zulip. A backport PR will be authored by the release team at the end of the current development cycle.

@rustbot label +beta-accepted

@rustbot rustbot added the beta-accepted Accepted for backporting to the compiler in the beta channel. label Aug 15, 2024
@cuviper cuviper modified the milestones: 1.82.0, 1.81.0 Aug 15, 2024
@cuviper cuviper removed the beta-nominated Nominated for backporting to the compiler in the beta channel. label Aug 15, 2024
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 15, 2024
[beta] backports and bump stage0

- Disable jump threading of float equality rust-lang#128271
- Normalize when equating `dyn` tails in MIR borrowck rust-lang#128694
- Improve `Ord` violation help rust-lang#128273
- bump stage0 to stable 1.80.1
- Revert rust-lang#125915 on beta rust-lang#128760
- derive(SmartPointer): register helper attributes rust-lang#128925
- Fix bug in `Parser::look_ahead`. rust-lang#128994

r? cuviper
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8 participants