Introduce structs

1 files changed, 43 insertions, 0 deletions

diff --git a/structure/src/main.rs b/structure/src/main.rs
new file mode 100644
index 0000000..81df2d9
--- /dev/null
+++ b/structure/src/main.rs
@@ -0,0 +1,43 @@
+/* define */
+struct User {
+    username: String,
+    email: String,
+    sign_in_count: u64,
+    active: bool,
+}
+
+/* tuple structs */
+struct Color(i32, i32, i32);
+struct Point(i32, i32, i32);
+
+fn main() {
+    /* create an instance */
+    let mut user1 = User {
+        email: String::from("someone@example.com"),
+        username: String::from("someusername123"),
+        active: true,
+        sign_in_count: 1,
+    };
+
+    user1.email = String::from("anotheremal@example.com");
+
+    /* update syntax */
+    let user2 = User {
+        email: String::from("another@email.com"),
+        username: String::from("anotherusername567"),
+        ..user1
+    };
+
+    let black = Color(0, 0, 0);
+    let origin = Point(0, 0, 0);
+}
+
+fn build_user(email: String, username: String) -> User {
+    User {
+        email,  /* field init shorthad */
+        username,
+        active: true,
+        sign_in_count: 1,
+    }
+}
+