From 7e8ee5ed9cad6484e9f13f81731b102ced58402e Mon Sep 17 00:00:00 2001
From: Adam Carpenter <gitlab@53hor.net>
Date: Tue, 9 Jul 2019 15:14:04 -0400
Subject: Init.

---
 meap/meap-code/ch1/ch1-animals-specialization.rs | 47 ++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100755 meap/meap-code/ch1/ch1-animals-specialization.rs

(limited to 'meap/meap-code/ch1/ch1-animals-specialization.rs')

diff --git a/meap/meap-code/ch1/ch1-animals-specialization.rs b/meap/meap-code/ch1/ch1-animals-specialization.rs
new file mode 100755
index 0000000..49fc0eb
--- /dev/null
+++ b/meap/meap-code/ch1/ch1-animals-specialization.rs
@@ -0,0 +1,47 @@
+struct Animal {
+	age: i32,
+}
+
+type Cat = Animal;
+type Dog = Animal;
+type LoudDog = Dog;
+
+trait Talk {
+	fn talk(&self) -> ();
+}
+
+impl Talk for Animal {
+	default fn talk(&self) { // note the use of the default 
+		println!("<silence>");
+	}
+}
+
+impl Talk for Cat {
+	fn talk(&self) {
+		println!("Meow");
+	}
+}
+
+impl Talk for Dog {
+	fn talk(&self) {
+		println!("Woof!");
+	}
+}
+
+impl Talk for LoudDog {
+	fn talk(&self) {
+		println!("WOOF!!");
+	}
+}
+
+
+
+fn main() {
+	let fluffy = Cat(Animal { age: 4 });
+	let max = Dog(Animal { age: 2 });
+	let neighbours_dog = LoudDog(Animal { age: 7 });
+
+	fluffy.talk();
+	max.talk();
+	neighbours_dog.talk();
+}
-- 
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