Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/test/ui/borrowck/issue-62007-assign-field.rs b/src/test/ui/borrowck/issue-62007-assign-field.rs
new file mode 100644
index 000000000..5b21c0838
--- /dev/null
+++ b/src/test/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<T> {
+    value: T,
+    next: Option<Box<List<T>>>,
+}
+
+fn to_refs<T>(mut list: (&mut List<T>,)) -> 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() {}