more struct methods, receiving another struct

rectangles/.vscode/launch.json

@@ -0,0 +1,45 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "lldb",
+      "request": "launch",
+      "name": "Debug executable 'rectangles'",
+      "cargo": {
+        "args": [
+          "build",
+          "--bin=rectangles",
+          "--package=rectangles"
+        ],
+        "filter": {
+          "name": "rectangles",
+          "kind": "bin"
+        }
+      },
+      "args": [],
+      "cwd": "${workspaceFolder}"
+    },
+    {
+      "type": "lldb",
+      "request": "launch",
+      "name": "Debug unit tests in executable 'rectangles'",
+      "cargo": {
+        "args": [
+          "test",
+          "--no-run",
+          "--bin=rectangles",
+          "--package=rectangles"
+        ],
+        "filter": {
+          "name": "rectangles",
+          "kind": "bin"
+        }
+      },
+      "args": [],
+      "cwd": "${workspaceFolder}"
+    }
+  ]
+}

rectangles/src/main.rs

@@ -1,17 +1,33 @@
+#[derive(Debug)]
 struct Rectangle {
     width: u32,
     height: u32,
 }
 
-fn main() {
-    let rect = Rectangle { width: 30, height:50};
-
-    println!(
-        "The area of a rectangle is {} square pixels",
-        area(&rect)
-    );
+impl Rectangle {
+    fn area(&self) -> u32 {
+        self.width * self.height
+    }
+    fn can_hold(&self, r2: &Rectangle) -> bool {
+        self.width > r2.width && self.height > r2.height
+    }
+}
+
+
+
+
+
+// MAIN
+fn main() {
+    let rect1 = Rectangle { width:30, height:50};
+    let rect2 = Rectangle { width:10, height:40};
+    let rect3 = Rectangle { width:60, height:45};
+
+    println!("r: {}", rect1.area());
+    println!("r: {}", rect2.area());
+    println!("r: {}", rect3.area());
+
+    println!("Can rect1 hold rect2? {}", rect1.can_hold(&rect2));
+    println!("Can rect1 hold rect3? {}", rect1.can_hold(&rect3));
 }
 
-fn area(rectangle: &Rectangle) -> u32 {
-    rectangle.width * rectangle.height
-}