2016 Update

Task/Abstract-type/Rust/abstract-type-1.rust

@@ -0,0 +1,3 @@
+trait Shape {
+    fn area(self) -> i32;
+}

Task/Abstract-type/Rust/abstract-type-2.rust

@@ -0,0 +1,9 @@
+struct Square {
+    side_length: i32
+}
+
+impl Shape for Square {
+    fn area(self) -> i32 {
+        self.side_length * self.side_length
+    }
+}

Task/Abstract-type/Rust/abstract-type-3.rust

@@ -0,0 +1,7 @@
+trait Shape {
+    fn area(self) -> i32;
+
+    fn is_shape(self) -> bool {
+        true
+    }
+}