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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:42 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:42 +0000 |
commit | 837b550238aa671a591ccf282dddeab29cadb206 (patch) | |
tree | 914b6b8862bace72bd3245ca184d374b08d8a672 /tests/ui/layout/issue-112048-unsizing-field-order.rs | |
parent | Adding debian version 1.70.0+dfsg2-1. (diff) | |
download | rustc-837b550238aa671a591ccf282dddeab29cadb206.tar.xz rustc-837b550238aa671a591ccf282dddeab29cadb206.zip |
Merging upstream version 1.71.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/layout/issue-112048-unsizing-field-order.rs')
-rw-r--r-- | tests/ui/layout/issue-112048-unsizing-field-order.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/layout/issue-112048-unsizing-field-order.rs b/tests/ui/layout/issue-112048-unsizing-field-order.rs new file mode 100644 index 000000000..ebc4b9e98 --- /dev/null +++ b/tests/ui/layout/issue-112048-unsizing-field-order.rs @@ -0,0 +1,25 @@ +// run-pass + +// Check that unsizing doesn't reorder fields. + +#![allow(dead_code)] + +use std::fmt::Debug; + +#[derive(Debug)] +struct GcNode<T: ?Sized> { + gets_swapped_with_next: usize, + next: Option<&'static GcNode<dyn Debug>>, + tail: T, +} + +fn main() { + let node: Box<GcNode<dyn Debug>> = Box::new(GcNode { + gets_swapped_with_next: 42, + next: None, + tail: Box::new(1), + }); + + assert_eq!(node.gets_swapped_with_next, 42); + assert!(node.next.is_none()); +} |