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 --- .../ui/borrowck/borrowck-access-permissions.rs | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 src/test/ui/borrowck/borrowck-access-permissions.rs (limited to 'src/test/ui/borrowck/borrowck-access-permissions.rs') diff --git a/src/test/ui/borrowck/borrowck-access-permissions.rs b/src/test/ui/borrowck/borrowck-access-permissions.rs new file mode 100644 index 000000000..469ad508b --- /dev/null +++ b/src/test/ui/borrowck/borrowck-access-permissions.rs @@ -0,0 +1,50 @@ +static static_x : i32 = 1; +static mut static_x_mut : i32 = 1; + +fn main() { + let x = 1; + let mut x_mut = 1; + + { // borrow of local + let _y1 = &mut x; //~ ERROR [E0596] + let _y2 = &mut x_mut; // No error + } + + { // borrow of static + let _y1 = &mut static_x; //~ ERROR [E0596] + unsafe { let _y2 = &mut static_x_mut; } // No error + } + + { // borrow of deref to box + let box_x = Box::new(1); + let mut box_x_mut = Box::new(1); + + let _y1 = &mut *box_x; //~ ERROR [E0596] + let _y2 = &mut *box_x_mut; // No error + } + + { // borrow of deref to reference + let ref_x = &x; + let ref_x_mut = &mut x_mut; + + let _y1 = &mut *ref_x; //~ ERROR [E0596] + let _y2 = &mut *ref_x_mut; // No error + } + + { // borrow of deref to pointer + let ptr_x : *const _ = &x; + let ptr_mut_x : *mut _ = &mut x_mut; + + unsafe { + let _y1 = &mut *ptr_x; //~ ERROR [E0596] + let _y2 = &mut *ptr_mut_x; // No error + } + } + + { // borrowing mutably through an immutable reference + struct Foo<'a> { f: &'a mut i32, g: &'a i32 }; + let mut foo = Foo { f: &mut x_mut, g: &x }; + let foo_ref = &foo; + let _y = &mut *foo_ref.f; //~ ERROR [E0596] + } +} -- cgit v1.2.3