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-rw-r--r--tests/ui/borrowck/issue-62007-assign-field.rs26
1 files changed, 26 insertions, 0 deletions
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<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() {}