From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/borrowck/borrowck-mutate-in-guard.rs | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 src/test/ui/borrowck/borrowck-mutate-in-guard.rs (limited to 'src/test/ui/borrowck/borrowck-mutate-in-guard.rs') diff --git a/src/test/ui/borrowck/borrowck-mutate-in-guard.rs b/src/test/ui/borrowck/borrowck-mutate-in-guard.rs new file mode 100644 index 000000000..9cbceeb94 --- /dev/null +++ b/src/test/ui/borrowck/borrowck-mutate-in-guard.rs @@ -0,0 +1,21 @@ +enum Enum<'a> { + A(&'a isize), + B(bool), +} + +fn foo() -> isize { + let mut n = 42; + let mut x = Enum::A(&mut n); + match x { + Enum::A(_) if { x = Enum::B(false); false } => 1, + //~^ ERROR cannot assign `x` in match guard + Enum::A(_) if { let y = &mut x; *y = Enum::B(false); false } => 1, + //~^ ERROR cannot mutably borrow `x` in match guard + Enum::A(p) => *p, + Enum::B(_) => 2, + } +} + +fn main() { + foo(); +} -- cgit v1.2.3