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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/borrowck/borrowck-mutate-in-guard.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/borrowck/borrowck-mutate-in-guard.rs')
-rw-r--r-- | src/test/ui/borrowck/borrowck-mutate-in-guard.rs | 21 |
1 files changed, 21 insertions, 0 deletions
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(); +} |