From c23a457e72abe608715ac76f076f47dc42af07a5 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 30 May 2024 20:31:44 +0200 Subject: Merging upstream version 1.74.1+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs (limited to 'tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs') diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs new file mode 100644 index 000000000..4efa02f57 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs @@ -0,0 +1,14 @@ +// Check mutable reference bindings cannot be mutated by an if-let guard. + +#![feature(if_let_guard)] + +fn main() { + let mut x: Option> = Some(Some(6)); + match x { + Some(ref mut y) if let Some(ref mut z) = *y => { + //~^ ERROR cannot borrow `y.0` as mutable, as it is immutable for the pattern guard + let _: &mut i32 = z; + } + _ => {} + } +} -- cgit v1.2.3