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, 29 insertions, 0 deletions

diff --git a/src/test/ui/generator/resume-after-return.rs b/src/test/ui/generator/resume-after-return.rs
new file mode 100644
index 000000000..538609b98
--- /dev/null
+++ b/src/test/ui/generator/resume-after-return.rs
@@ -0,0 +1,29 @@
+// run-pass
+// needs-unwind
+
+// ignore-wasm32-bare compiled with panic=abort by default
+
+#![feature(generators, generator_trait)]
+
+use std::ops::{GeneratorState, Generator};
+use std::pin::Pin;
+use std::panic;
+
+fn main() {
+    let mut foo = || {
+        if true {
+            return
+        }
+        yield;
+    };
+
+    match Pin::new(&mut foo).resume(()) {
+        GeneratorState::Complete(()) => {}
+        s => panic!("bad state: {:?}", s),
+    }
+
+    match panic::catch_unwind(move || Pin::new(&mut foo).resume(())) {
+        Ok(_) => panic!("generator successfully resumed"),
+        Err(_) => {}
+    }
+}