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, 54 insertions, 0 deletions

diff --git a/src/test/ui/static/static-reference-to-fn-2.rs b/src/test/ui/static/static-reference-to-fn-2.rs
new file mode 100644
index 000000000..6693667c0
--- /dev/null
+++ b/src/test/ui/static/static-reference-to-fn-2.rs
@@ -0,0 +1,54 @@
+fn id<T>(x: T) -> T { x }
+
+struct StateMachineIter<'a> {
+    statefn: &'a StateMachineFunc<'a>
+}
+
+type StateMachineFunc<'a> = fn(&mut StateMachineIter<'a>) -> Option<&'static str>;
+
+impl<'a> Iterator for StateMachineIter<'a> {
+    type Item = &'static str;
+
+    fn next(&mut self) -> Option<&'static str> {
+        return  (*self.statefn)(self);
+    }
+}
+
+fn state1(self_: &mut StateMachineIter) -> Option<&'static str> {
+    self_.statefn = &id(state2 as StateMachineFunc);
+    //~^ ERROR temporary value dropped while borrowed
+    return Some("state1");
+}
+
+fn state2(self_: &mut StateMachineIter) -> Option<(&'static str)> {
+    self_.statefn = &id(state3 as StateMachineFunc);
+    //~^ ERROR temporary value dropped while borrowed
+    return Some("state2");
+}
+
+fn state3(self_: &mut StateMachineIter) -> Option<(&'static str)> {
+    self_.statefn = &id(finished as StateMachineFunc);
+    //~^ ERROR temporary value dropped while borrowed
+    return Some("state3");
+}
+
+fn finished(_: &mut StateMachineIter) -> Option<(&'static str)> {
+    return None;
+}
+
+fn state_iter() -> StateMachineIter<'static> {
+    StateMachineIter {
+    //~^ ERROR cannot return value referencing temporary value
+        statefn: &id(state1 as StateMachineFunc)
+    }
+}
+
+
+fn main() {
+    let mut it = state_iter();
+    println!("{:?}",it.next());
+    println!("{:?}",it.next());
+    println!("{:?}",it.next());
+    println!("{:?}",it.next());
+    println!("{:?}",it.next());
+}