From 4bb1592402003184cd73c6ee5b135df084ea5abc Mon Sep 17 00:00:00 2001 From: Esteban Küber Date: Wed, 9 Oct 2019 12:25:48 -0700 Subject: Suggest `if let` on `let` refutable binding --- src/test/ui/refutable-pattern-errors.stderr | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/test/ui/refutable-pattern-errors.stderr') diff --git a/src/test/ui/refutable-pattern-errors.stderr b/src/test/ui/refutable-pattern-errors.stderr index 3b13e25293d..0cf5d9cd5f1 100644 --- a/src/test/ui/refutable-pattern-errors.stderr +++ b/src/test/ui/refutable-pattern-errors.stderr @@ -9,6 +9,13 @@ error[E0005]: refutable pattern in local binding: `(std::i32::MIN..=0i32, _)` an | LL | let (1, (Some(1), 2..=3)) = (1, (None, 2)); | ^^^^^^^^^^^^^^^^^^^^^ patterns `(std::i32::MIN..=0i32, _)` and `(2i32..=std::i32::MAX, _)` not covered + | + = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant + = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html +help: you might want to use `if let` to ignore the variant that isn't matched + | +LL | if let (1, (Some(1), 2..=3)) = (1, (None, 2)) { /* */ } + | error: aborting due to 2 previous errors -- cgit 1.4.1-3-g733a5