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, 23 insertions, 0 deletions

diff --git a/src/test/ui/nll/closure-requirements/propagate-multiple-requirements.rs b/src/test/ui/nll/closure-requirements/propagate-multiple-requirements.rs
new file mode 100644
index 000000000..a9d2a0771
--- /dev/null
+++ b/src/test/ui/nll/closure-requirements/propagate-multiple-requirements.rs
@@ -0,0 +1,23 @@
+// Test that we propagate *all* requirements to the caller, not just the first
+// one.
+
+fn once<S, T, U, F: FnOnce(S, T) -> U>(f: F, s: S, t: T) -> U {
+    f(s, t)
+}
+
+pub fn dangle() -> &'static [i32] {
+    let other_local_arr = [0, 2, 4];
+    let local_arr = other_local_arr;
+    let mut out: &mut &'static [i32] = &mut (&[1] as _);
+    once(|mut z: &[i32], mut out_val: &mut &[i32]| {
+        // We unfortunately point to the first use in the closure in the error
+        // message
+        z = &local_arr; //~ ERROR
+        *out_val = &local_arr;
+    }, &[] as &[_], &mut *out);
+    *out
+}
+
+fn main() {
+    println!("{:?}", dangle());
+}