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, 33 insertions, 0 deletions

diff --git a/src/test/ui/for-loop-while/foreach-external-iterators-hashmap-break-restart.rs b/src/test/ui/for-loop-while/foreach-external-iterators-hashmap-break-restart.rs
new file mode 100644
index 000000000..5d690807e
--- /dev/null
+++ b/src/test/ui/for-loop-while/foreach-external-iterators-hashmap-break-restart.rs
@@ -0,0 +1,33 @@
+// run-pass
+
+use std::collections::HashMap;
+
+// This is a fancy one: it uses an external iterator established
+// outside the loop, breaks, then _picks back up_ and continues
+// iterating with it.
+
+pub fn main() {
+    let mut h = HashMap::new();
+    let kvs = [(1, 10), (2, 20), (3, 30)];
+    for &(k,v) in &kvs {
+        h.insert(k,v);
+    }
+    let mut x = 0;
+    let mut y = 0;
+
+    let mut i = h.iter();
+
+    for (&k,&v) in i.by_ref() {
+        x += k;
+        y += v;
+        break;
+    }
+
+    for (&k,&v) in i {
+        x += k;
+        y += v;
+    }
+
+    assert_eq!(x, 6);
+    assert_eq!(y, 60);
+}