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/borrow-tuple-fields.rs | 43 +++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 src/test/ui/borrowck/borrow-tuple-fields.rs (limited to 'src/test/ui/borrowck/borrow-tuple-fields.rs') diff --git a/src/test/ui/borrowck/borrow-tuple-fields.rs b/src/test/ui/borrowck/borrow-tuple-fields.rs new file mode 100644 index 000000000..c628fa49e --- /dev/null +++ b/src/test/ui/borrowck/borrow-tuple-fields.rs @@ -0,0 +1,43 @@ +struct Foo(Box, isize); + +struct Bar(isize, isize); + + + + + +fn main() { + let x: (Box<_>, _) = (Box::new(1), 2); + let r = &x.0; + let y = x; //~ ERROR cannot move out of `x` because it is borrowed + + r.use_ref(); + + let mut x = (1, 2); + let a = &x.0; + let b = &mut x.0; //~ ERROR cannot borrow `x.0` as mutable because it is also borrowed as + a.use_ref(); + + let mut x = (1, 2); + let a = &mut x.0; + let b = &mut x.0; //~ ERROR cannot borrow `x.0` as mutable more than once at a time + a.use_ref(); + + let x = Foo(Box::new(1), 2); + let r = &x.0; + let y = x; //~ ERROR cannot move out of `x` because it is borrowed + r.use_ref(); + + let mut x = Bar(1, 2); + let a = &x.0; + let b = &mut x.0; //~ ERROR cannot borrow `x.0` as mutable because it is also borrowed as + a.use_ref(); + + let mut x = Bar(1, 2); + let a = &mut x.0; + let b = &mut x.0; //~ ERROR cannot borrow `x.0` as mutable more than once at a time + a.use_mut(); +} + +trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { } } +impl Fake for T { } -- cgit v1.2.3