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, 23 insertions, 0 deletions

diff --git a/src/doc/book/listings/ch19-advanced-features/listing-19-20/src/main.rs b/src/doc/book/listings/ch19-advanced-features/listing-19-20/src/main.rs
new file mode 100644
index 000000000..8e295c9b6
--- /dev/null
+++ b/src/doc/book/listings/ch19-advanced-features/listing-19-20/src/main.rs
@@ -0,0 +1,23 @@
+trait Animal {
+    fn baby_name() -> String;
+}
+
+struct Dog;
+
+impl Dog {
+    fn baby_name() -> String {
+        String::from("Spot")
+    }
+}
+
+impl Animal for Dog {
+    fn baby_name() -> String {
+        String::from("puppy")
+    }
+}
+
+// ANCHOR: here
+fn main() {
+    println!("A baby dog is called a {}", Animal::baby_name());
+}
+// ANCHOR_END: here