From a4b7ed7a42c716ab9f05e351f003d589124fd55d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:18:58 +0200 Subject: Adding upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/borrowck/issue-62007-assign-field.rs | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 tests/ui/borrowck/issue-62007-assign-field.rs (limited to 'tests/ui/borrowck/issue-62007-assign-field.rs') diff --git a/tests/ui/borrowck/issue-62007-assign-field.rs b/tests/ui/borrowck/issue-62007-assign-field.rs new file mode 100644 index 000000000..5b21c0838 --- /dev/null +++ b/tests/ui/borrowck/issue-62007-assign-field.rs @@ -0,0 +1,26 @@ +// run-pass + +// Issue #62007: assigning over a field projection (`list.0 = n;` in +// this case) should be able to kill all borrows of `list.0`, so that +// `list.0` can be borrowed on the next iteration through the loop. + +#![allow(dead_code)] + +struct List { + value: T, + next: Option>>, +} + +fn to_refs(mut list: (&mut List,)) -> Vec<&mut T> { + let mut result = vec![]; + loop { + result.push(&mut (list.0).value); + if let Some(n) = (list.0).next.as_mut() { + list.0 = n; + } else { + return result; + } + } +} + +fn main() {} -- cgit v1.2.3