Samuel Tardieu 5a14685a63

Rollup merge of #145234 - dianne:1-tuple-witnesses, r=jackh726 ...

match exhaustiveness diagnostics: show a trailing comma on singleton tuple consructors in witness patterns (and clean up a little)

Constructor patterns of type `(T,)` are written `(pat,)`, not `(pat)`. However, exhaustiveness/usefulness diagnostics would print them as `(pat)` when e.g. providing a witness of non-exhaustiveness and suggesting adding arms to make matches exhaustive; this would result in an error when applied.
rust-analyzer already prints the trailing comma, so it doesn't need changing.

This also includes some cleanup in the second commit, with justification in the commit message.

2025-08-23 22:22:15 +02:00

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already-bound-name.rs

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already-bound-name.stderr

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basic-switch.rs

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basic-switchint.rs

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bindings-runpass-1.rs

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bindings-runpass-2.rs

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box-patterns.rs

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consistent-bindings.rs

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const-fn.rs

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exhaustiveness-non-exhaustive.rs

show a trailing comma on singleton tuple constructors in witness pats

2025-08-10 15:32:14 -07:00

exhaustiveness-non-exhaustive.stderr

show a trailing comma on singleton tuple constructors in witness pats

2025-08-10 15:32:14 -07:00

exhaustiveness-pass.rs

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exhaustiveness-unreachable-pattern.rs

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exhaustiveness-unreachable-pattern.stderr

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fn-param-wrap-parens.fixed

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fn-param-wrap-parens.rs

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fn-param-wrap-parens.stderr

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for-loop.rs

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if-let-while-let.rs

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inconsistent-modes.rs

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inconsistent-modes.stderr

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inner-or-pat.or3.stderr

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inner-or-pat.or4.stderr

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inner-or-pat.rs

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issue-64879-trailing-before-guard.fixed

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issue-64879-trailing-before-guard.rs

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issue-64879-trailing-before-guard.stderr

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issue-67514-irrefutable-param.rs

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issue-68785-irrefutable-param-with-at.rs

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issue-69875-should-have-been-expanded-earlier-non-exhaustive.rs

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issue-69875-should-have-been-expanded-earlier-non-exhaustive.stderr

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issue-69875-should-have-been-expanded-earlier.rs

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issue-70413-no-unreachable-pat-and-guard.rs

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lazy-and-or.rs

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let-pattern.rs

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macro-pat.rs

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mismatched-bindings-async-fn.rs

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mismatched-bindings-async-fn.stderr

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missing-bindings.rs

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missing-bindings.stderr

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mix-with-wild.rs

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multiple-pattern-typo.rs

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multiple-pattern-typo.stderr

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nested-undelimited-precedence.rs

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nested-undelimited-precedence.stderr

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or-patterns-binding-type-mismatch.rs

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or-patterns-binding-type-mismatch.stderr

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or-patterns-default-binding-modes.rs

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or-patterns-syntactic-fail-2018.rs

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or-patterns-syntactic-fail-2018.stderr

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or-patterns-syntactic-fail.rs

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or-patterns-syntactic-fail.stderr

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or-patterns-syntactic-pass-2021.rs

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or-patterns-syntactic-pass.rs

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or-patterns-syntactic-pass.stderr

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remove-leading-vert.fixed

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remove-leading-vert.rs

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remove-leading-vert.stderr

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search-via-bindings.rs

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simplification_subtleties.rs

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slice-patterns.rs

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struct-like.rs

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while-parsing-this-or-pattern.rs

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while-parsing-this-or-pattern.stderr

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