add files

3 files changed, 60 insertions, 0 deletions

diff --git a/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/Cargo.toml b/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/Cargo.toml
new file mode 100644
index 0000000..460f45f
--- /dev/null
+++ b/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "traits"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/src/lib.rs b/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/src/lib.rs
new file mode 100644
index 0000000..45c93c8
--- /dev/null
+++ b/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/src/lib.rs
@@ -0,0 +1,29 @@
+pub trait Summary {
+    fn summarize (&self) -> String;
+}
+
+pub struct NewsArticle {
+    pub author: String,
+    pub headline: String,
+    pub location: String,
+    pub content: String,
+}
+
+impl Summary for NewsArticle {
+    fn summarize(&self) -> String {     // return String ownership. &self means self: &Self
+        format!("{} by {} ({})", self.headline, self.author, self.location)
+    }
+}
+
+pub struct Tweet {
+    pub username: String,
+    pub content: String,
+    pub retweet: bool,
+    pub reply: bool,
+}
+
+impl Summary for Tweet {
+    fn summarize(&self) -> String {     // &Self is the type owns impl
+        format!("{}: {}",self.username, self.content)
+    }
+}
diff --git a/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/src/main.rs b/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/src/main.rs
new file mode 100644
index 0000000..f0229a0
--- /dev/null
+++ b/rust/theBook/chapter-10-generic-types-traits-lifetimes/traits/src/main.rs
@@ -0,0 +1,23 @@
+use traits::{Tweet, Summary, NewsArticle};
+
+fn main() {
+    let tweet = Tweet {
+        username: String::from("horse_ebook"),
+        content: String::from(
+            "of course, as you probably already know, people."
+        ),
+        reply: false,
+        retweet: false,
+    };
+
+    println!("1 new tweet: {}", tweet.summarize());
+
+    let article = NewsArticle {
+        author: String::from("garhve"),
+        headline: String::from("how to die"),
+        location: String:: from("United Kingdom"),
+        content: String::from("This is how we gonna die"),
+    };
+
+    println!("1 new article: {}",article.summarize());
+}