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Recover [T: N] as [T; N] #148680

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Recover [T: N] as [T; N] #148680

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@ShE3py ShE3py commented Nov 8, 2025 •
edited by rustbot
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; is similar and (keyboard-wise) next to :, so a verbose suggestion may help to see the difference.

Parent PR: #143905

@rustbot label +A-parser +A-array +A-diagnostics +A-suggestion-diagnostics +D-papercut

@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 Nov 8, 2025
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rustbot commented Nov 8, 2025

r? @wesleywiser

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@rustbot rustbot added A-array Area: `[T; N]` A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The lexing & parsing of Rust source code to an AST A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-papercut Diagnostics: An error or lint that needs small tweaks. labels Nov 8, 2025
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ShE3py commented Nov 8, 2025
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compiler/rustc_parse/src/parser/ty.rs
let mut err =
self.dcx().struct_span_err(span, format!("expected `;` or `]`, found {}", token_descr));
err.span_label(span, "expected `;` or `]`");
err.note("you might have meant to write a slice or array type");
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I feel like this is redondant with the suggestion, and otherwise not really helpful.

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A-array Area: `[T; N]` A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The lexing & parsing of Rust source code to an AST A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-papercut Diagnostics: An error or lint that needs small tweaks. 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.

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