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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/overloaded/overloaded-autoderef.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/overloaded/overloaded-autoderef.rs')
-rw-r--r-- | tests/ui/overloaded/overloaded-autoderef.rs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/ui/overloaded/overloaded-autoderef.rs b/tests/ui/overloaded/overloaded-autoderef.rs new file mode 100644 index 000000000..cae3ec906 --- /dev/null +++ b/tests/ui/overloaded/overloaded-autoderef.rs @@ -0,0 +1,43 @@ +// run-pass +#![allow(unused_variables)] +#![allow(stable_features)] + +use std::cell::RefCell; +use std::rc::Rc; + +#[derive(PartialEq, Debug)] +struct Point { + x: isize, + y: isize +} + +pub fn main() { + let box_5: Box<_> = Box::new(5_usize); + let point = Rc::new(Point {x: 2, y: 4}); + assert_eq!(point.x, 2); + assert_eq!(point.y, 4); + + let i = Rc::new(RefCell::new(2)); + let i_value = *i.borrow(); + *i.borrow_mut() = 5; + assert_eq!((i_value, *i.borrow()), (2, 5)); + + let s = Rc::new("foo".to_string()); + assert_eq!(&**s, "foo"); + + let mut_s = Rc::new(RefCell::new(String::from("foo"))); + mut_s.borrow_mut().push_str("bar"); + // HACK assert_eq! would panic here because it stores the LHS and RHS in two locals. + assert_eq!(&**mut_s.borrow(), "foobar"); + assert_eq!(&**mut_s.borrow_mut(), "foobar"); + + let p = Rc::new(RefCell::new(Point {x: 1, y: 2})); + p.borrow_mut().x = 3; + p.borrow_mut().y += 3; + assert_eq!(*p.borrow(), Point {x: 3, y: 5}); + + let v = Rc::new(RefCell::new([1, 2, 3])); + v.borrow_mut()[0] = 3; + v.borrow_mut()[1] += 3; + assert_eq!((v.borrow()[0], v.borrow()[1], v.borrow()[2]), (3, 5, 3)); +} |