3 files changed, 44 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/Cargo.lock b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/Cargo.lock
new file mode 100644
index 000000000..2835471f0
--- /dev/null
+++ b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aggregator"
+version = "0.1.0"
diff --git a/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/Cargo.toml b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/Cargo.toml
new file mode 100644
index 000000000..46f46a7f4
--- /dev/null
+++ b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "aggregator"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/src/lib.rs b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/src/lib.rs
new file mode 100644
index 000000000..c4c83329e
--- /dev/null
+++ b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-13/src/lib.rs
@@ -0,0 +1,31 @@
+pub trait Summary {
+    fn summarize(&self) -> String;
+}
+
+// ANCHOR: here
+pub struct NewsArticle {
+    pub headline: String,
+    pub location: String,
+    pub author: String,
+    pub content: String,
+}
+
+impl Summary for NewsArticle {
+    fn summarize(&self) -> String {
+        format!("{}, by {} ({})", self.headline, self.author, self.location)
+    }
+}
+
+pub struct Tweet {
+    pub username: String,
+    pub content: String,
+    pub reply: bool,
+    pub retweet: bool,
+}
+
+impl Summary for Tweet {
+    fn summarize(&self) -> String {
+        format!("{}: {}", self.username, self.content)
+    }
+}
+// ANCHOR_END: here