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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 /src/test/ui/nll/issue-62007-assign-const-index.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 'src/test/ui/nll/issue-62007-assign-const-index.rs')
-rw-r--r-- | src/test/ui/nll/issue-62007-assign-const-index.rs | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/src/test/ui/nll/issue-62007-assign-const-index.rs b/src/test/ui/nll/issue-62007-assign-const-index.rs deleted file mode 100644 index 3ea5d3a7a..000000000 --- a/src/test/ui/nll/issue-62007-assign-const-index.rs +++ /dev/null @@ -1,32 +0,0 @@ -// Issue #62007: assigning over a const-index projection of an array -// (in this case, `list[I] = n;`) should in theory be able to kill all borrows -// of `list[0]`, so that `list[0]` could be borrowed on the next -// iteration through the loop. -// -// Currently the compiler does not allow this. We may want to consider -// loosening that restriction in the future. (However, doing so would -// at *least* require T-lang team approval, and probably an RFC; e.g. -// such loosening might make complicate the user's mental mode; it -// also would make code more brittle in the face of refactorings that -// replace constants with variables. - -#![allow(dead_code)] - -struct List<T> { - value: T, - next: Option<Box<List<T>>>, -} - -fn to_refs<T>(mut list: [&mut List<T>; 2]) -> Vec<&mut T> { - let mut result = vec![]; - loop { - result.push(&mut list[0].value); //~ ERROR cannot borrow `list[_].value` as mutable - if let Some(n) = list[0].next.as_mut() { //~ ERROR cannot borrow `list[_].next` as mutable - list[0] = n; - } else { - return result; - } - } -} - -fn main() {} |