mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 17:24:06 +00:00
Added test for #45697
This commit is contained in:
parent
6272b60dca
commit
dd6b005926
35
src/test/ui/issue-45697.rs
Normal file
35
src/test/ui/issue-45697.rs
Normal file
@ -0,0 +1,35 @@
|
||||
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution and at
|
||||
// http://rust-lang.org/COPYRIGHT.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
// Test that assignments to an `&mut` pointer which is found in a
|
||||
// borrowed (but otherwise non-aliasable) location is illegal.
|
||||
|
||||
// compile-flags: -Z emit-end-regions -Z borrowck=compare
|
||||
|
||||
struct S<'a> {
|
||||
pointer: &'a mut isize
|
||||
}
|
||||
|
||||
fn copy_borrowed_ptr<'a>(p: &'a mut S<'a>) -> S<'a> {
|
||||
S { pointer: &mut *p.pointer }
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let mut x = 1;
|
||||
|
||||
{
|
||||
let mut y = S { pointer: &mut x };
|
||||
let z = copy_borrowed_ptr(&mut y);
|
||||
*y.pointer += 1;
|
||||
//~^ ERROR cannot assign to `*y.pointer` because it is borrowed (Ast) [E0506]
|
||||
//~| ERROR cannot assign to `*y.pointer` because it is borrowed (Mir) [E0506]
|
||||
*z.pointer += 1;
|
||||
}
|
||||
}
|
18
src/test/ui/issue-45697.stderr
Normal file
18
src/test/ui/issue-45697.stderr
Normal file
@ -0,0 +1,18 @@
|
||||
error[E0506]: cannot assign to `*y.pointer` because it is borrowed (Ast)
|
||||
--> $DIR/issue-45697.rs:30:9
|
||||
|
|
||||
29 | let z = copy_borrowed_ptr(&mut y);
|
||||
| - borrow of `*y.pointer` occurs here
|
||||
30 | *y.pointer += 1;
|
||||
| ^^^^^^^^^^^^^^^ assignment to borrowed `*y.pointer` occurs here
|
||||
|
||||
error[E0506]: cannot assign to `*y.pointer` because it is borrowed (Mir)
|
||||
--> $DIR/issue-45697.rs:30:9
|
||||
|
|
||||
29 | let z = copy_borrowed_ptr(&mut y);
|
||||
| ------ borrow of `*y.pointer` occurs here
|
||||
30 | *y.pointer += 1;
|
||||
| ^^^^^^^^^^^^^^^ assignment to borrowed `*y.pointer` occurs here
|
||||
|
||||
error: aborting due to 2 previous errors
|
||||
|
Loading…
Reference in New Issue
Block a user