Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/tests/ui/methods/method-where-clause.rs b/tests/ui/methods/method-where-clause.rs
new file mode 100644
index 000000000..01692abf9
--- /dev/null
+++ b/tests/ui/methods/method-where-clause.rs
@@ -0,0 +1,34 @@
+// run-pass
+// Test that we can use method notation to call methods based on a
+// where clause type, and not only type parameters.
+
+
+trait Foo {
+    fn foo(&self) -> i32;
+}
+
+impl Foo for Option<i32>
+{
+    fn foo(&self) -> i32 {
+        self.unwrap_or(22)
+    }
+}
+
+impl Foo for Option<u32>
+{
+    fn foo(&self) -> i32 {
+        self.unwrap_or(22) as i32
+    }
+}
+
+fn check<T>(x: Option<T>) -> (i32, i32)
+    where Option<T> : Foo
+{
+    let y: Option<T> = None;
+    (x.foo(), y.foo())
+}
+
+fn main() {
+    assert_eq!(check(Some(23u32)), (23, 22));
+    assert_eq!(check(Some(23)), (23, 22));
+}