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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-access-permissions.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-access-permissions.rs')
-rw-r--r-- | src/test/ui/borrowck/borrowck-access-permissions.rs | 50 |
1 files changed, 50 insertions, 0 deletions
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] + } +} |