Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/ui/dst/dst-bad-coerce3.rs b/tests/ui/dst/dst-bad-coerce3.rs
new file mode 100644
index 000000000..fd5ee3b57
--- /dev/null
+++ b/tests/ui/dst/dst-bad-coerce3.rs
@@ -0,0 +1,37 @@
+// Attempt to extend the lifetime as well as unsizing.
+
+#![feature(unsized_tuple_coercion)]
+
+struct Fat<T: ?Sized> {
+    ptr: T
+}
+
+struct Foo;
+trait Bar { fn bar(&self) {} }
+impl Bar for Foo {}
+
+fn baz<'a>() {
+    // With a vec of ints.
+    let f1 = Fat { ptr: [1, 2, 3] };
+    let f2: &Fat<[isize; 3]> = &f1; //~ ERROR `f1` does not live long enough
+    let f3: &'a Fat<[isize]> = f2;
+
+    // With a trait.
+    let f1 = Fat { ptr: Foo };
+    let f2: &Fat<Foo> = &f1; //~ ERROR `f1` does not live long enough
+    let f3: &'a Fat<dyn Bar> = f2;
+
+    // Tuple with a vec of ints.
+    let f1 = ([1, 2, 3],);
+    let f2: &([isize; 3],) = &f1; //~ ERROR `f1` does not live long enough
+    let f3: &'a ([isize],) = f2;
+
+    // Tuple with a trait.
+    let f1 = (Foo,);
+    let f2: &(Foo,) = &f1; //~ ERROR `f1` does not live long enough
+    let f3: &'a (dyn Bar,) = f2;
+}
+
+pub fn main() {
+    baz();
+}