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, 16 insertions, 0 deletions

diff --git a/src/test/ui/recursion/recursive-enum.stderr b/src/test/ui/recursion/recursive-enum.stderr
new file mode 100644
index 000000000..f5d25c564
--- /dev/null
+++ b/src/test/ui/recursion/recursive-enum.stderr
@@ -0,0 +1,16 @@
+error[E0072]: recursive type `List` has infinite size
+  --> $DIR/recursive-enum.rs:1:1
+   |
+LL | enum List<T> { Cons(T, List<T>), Nil }
+   | ^^^^^^^^^^^^           ------- recursive without indirection
+   | |
+   | recursive type has infinite size
+   |
+help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `List` representable
+   |
+LL | enum List<T> { Cons(T, Box<List<T>>), Nil }
+   |                        ++++       +
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0072`.