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, 21 insertions, 0 deletions

diff --git a/src/test/ui/structs-enums/struct-partial-move-1.rs b/src/test/ui/structs-enums/struct-partial-move-1.rs
new file mode 100644
index 000000000..c15701593
--- /dev/null
+++ b/src/test/ui/structs-enums/struct-partial-move-1.rs
@@ -0,0 +1,21 @@
+// run-pass
+#[derive(PartialEq, Debug)]
+pub struct Partial<T> { x: T, y: T }
+
+#[derive(PartialEq, Debug)]
+struct S { val: isize }
+impl S { fn new(v: isize) -> S { S { val: v } } }
+impl Drop for S { fn drop(&mut self) { } }
+
+pub fn f<T, F>((b1, b2): (T, T), mut f: F) -> Partial<T> where F: FnMut(T) -> T {
+    let p = Partial { x: b1, y: b2 };
+
+    // Move of `p` is legal even though we are also moving `p.y`; the
+    // `..p` moves all fields *except* `p.y` in this context.
+    Partial { y: f(p.y), ..p }
+}
+
+pub fn main() {
+    let p = f((S::new(3), S::new(4)), |S { val: z }| S::new(z+1));
+    assert_eq!(p, Partial { x: S::new(3), y: S::new(5) });
+}