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authorAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-05 09:13:28 +0100
committerAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-11 09:32:08 +0000
commitcf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch)
tree40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/nll/issue-62007-assign-differing-fields.rs
parentca855e6e42787ecd062d81d53336fe6788ef51a9 (diff)
downloadrust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz
rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip
Move /src/test to /tests
Diffstat (limited to 'tests/ui/nll/issue-62007-assign-differing-fields.rs')
-rw-r--r--tests/ui/nll/issue-62007-assign-differing-fields.rs25
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/nll/issue-62007-assign-differing-fields.rs b/tests/ui/nll/issue-62007-assign-differing-fields.rs
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index 00000000000..29d92b7b85c
--- /dev/null
+++ b/tests/ui/nll/issue-62007-assign-differing-fields.rs
@@ -0,0 +1,25 @@
+// Double-check we didn't go too far with our resolution to issue
+// #62007: assigning over a field projection (`list.1 = n;` in this
+// case) should kill only borrows of `list.1`; `list.0` can *not*
+// necessarily 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<'a, T>(mut list: (&'a mut List<T>, &'a mut List<T>)) -> Vec<&'a mut T> {
+    let mut result = vec![];
+    loop {
+        result.push(&mut (list.0).value); //~ ERROR cannot borrow `list.0.value` as mutable
+        if let Some(n) = (list.0).next.as_mut() { //~ ERROR cannot borrow `list.0.next` as mutable
+            list.1 = n;
+        } else {
+            return result;
+        }
+    }
+}
+
+fn main() {}