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code coverage reporting for let-else interacts poorly with rustfmt

A-code-coverageArea: Source-based code coverage (-Cinstrument-coverage)Area: Source-based code coverage (-Cinstrument-coverage)

C-bugCategory: This is a bug.Category: This is a bug.

F-let_elseIssues related to let-else statements (RFC 3137)Issues related to let-else statements (RFC 3137)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#143149 In rust-lang/rust;

· briansmith opened on Jun 28, 2025

E0308 doesn't provide a help message in loops when using let-else

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

D-terseDiagnostics: An error or lint that doesn't give enough information about the problem at hand.Diagnostics: An error or lint that doesn't give enough information about the problem at hand.

F-let_elseIssues related to let-else statements (RFC 3137)Issues related to let-else statements (RFC 3137)

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#142602 In rust-lang/rust;

· ada4a opened on Jun 16, 2025

Detect missing else in block with return

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-parserArea: The lexing & parsing of Rust source code to an ASTArea: The lexing & parsing of Rust source code to an AST

F-let_elseIssues related to let-else statements (RFC 3137)Issues related to let-else statements (RFC 3137)

P-lowLow priorityLow priority

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#135857 In rust-lang/rust;

· estebank opened on Jan 22, 2025

3 comments



let-else does not support else if

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

F-let_elseIssues related to let-else statements (RFC 3137)Issues related to let-else statements (RFC 3137)

Status: Open.

#111910 In rust-lang/rust;

· lcnr opened on May 24, 2023

8 comments