Add a warning to proc_macro::Delimiter::None that rustc currently does not respect it. by CensoredUsername · Pull Request #124389

Add a warning to proc_macro::Delimiter::None that rustc currently does not respect it. by CensoredUsername · Pull Request #124389 · rust-lang/rust

…t it.

It does not provide the behaviour it is indicated to provide when used in
a proc_macro context.

rustbot added S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

and removed S-waiting-on-author

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May 23, 2024

bors added S-waiting-on-bors

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and removed S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

labels

May 23, 2024

bors added a commit to rust-lang-ci/rust that referenced this pull request

May 23, 2024

Rollup of 7 pull requests

Successful merges:

 - rust-lang#122382 (Detect unused structs which implement private traits)
 - rust-lang#124389 (Add a warning to proc_macro::Delimiter::None that rustc currently does not respect it.)
 - rust-lang#125224 (Migrate `run-make/issue-53964` to `rmake`)
 - rust-lang#125227 (Migrate `run-make/issue-30063` to `rmake`)
 - rust-lang#125336 (Add dedicated definition for intrinsics)
 - rust-lang#125401 (Migrate `run-make/rustdoc-scrape-examples-macros` to `rmake.rs`)
 - rust-lang#125454 (Improve the doc of query associated_item)

r? `@ghost`
`@rustbot` modify labels: rollup

rust-timer added a commit to rust-lang-ci/rust that referenced this pull request

May 23, 2024

Rollup merge of rust-lang#124389 - CensoredUsername:master, r=petrochenkov

Add a warning to proc_macro::Delimiter::None that rustc currently does not respect it.

It does not provide the behaviour it is indicated to provide when used in a proc_macro context.

This seems to be a bug, (rust-lang#67062), but it is a long standing one, and hard to discover.

This pull request adds a warning to inform users of this issue, with a link to the relevant issue, and a version number of the last known affected rustc version.