Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/ui/span/wf-method-late-bound-regions.rs b/tests/ui/span/wf-method-late-bound-regions.rs
new file mode 100644
index 000000000..ca9f73d0a
--- /dev/null
+++ b/tests/ui/span/wf-method-late-bound-regions.rs
@@ -0,0 +1,24 @@
+// A method's receiver must be well-formed, even if it has late-bound regions.
+// Because of this, a method's substs being well-formed does not imply that
+// the method's implied bounds are met.
+
+struct Foo<'b>(Option<&'b ()>);
+
+trait Bar<'b> {
+    fn xmute<'a>(&'a self, u: &'b u32) -> &'a u32;
+}
+
+impl<'b> Bar<'b> for Foo<'b> {
+    fn xmute<'a>(&'a self, u: &'b u32) -> &'a u32 { u }
+}
+
+fn main() {
+    let f = Foo(None);
+    let f2 = f;
+    let dangling = {
+        let pointer = Box::new(42);
+        f2.xmute(&pointer)
+    };
+    //~^^ ERROR `pointer` does not live long enough
+    println!("{}", dangling);
+}