first commit

Enums/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "Enums"
+version = "0.1.0"

Enums/Cargo.toml

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+[package]
+name = "Enums"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

Enums/README.md

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+# benefits of Enums with match:
+
+- compiler ensures all variants are handled
+- clean and readable code 
+- can include data directly in the enum 

Enums/src/main.rs

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+// An enum defines a type by enumerating its possible values. EAch variant can optionally carry
+// data
+
+enum Message {
+    Quit, // this is no data
+    Move {
+        //structure
+        x: i32,
+        y: i32,
+    },
+
+    Write(String),              // string that can be written
+    ChangeColor(i32, i32, i32), // three integers, for the rgb
+}
+
+fn main() {
+    let m1 = Message::Move { x: 1, y: 2 };
+    let m2 = Message::Quit;
+    let m3 = Message::Write(String::from("safal lama"));
+    let m4 = Message::ChangeColor(255, 0, 0);
+
+    handle(m1);
+    handle(m2);
+    handle(m3);
+    handle(m4);
+}
+
+fn handle(msg: Message) {
+    match msg {
+        Message::Quit => println!("quit message received"),
+        Message::Move { x, y } => println!("moving ({}, {})", x, y),
+        Message::Write(txt) => println!("message: {}", txt),
+        Message::ChangeColor(r, g, b) => println!("Color: ({},{},{})", r, g, b),
+    }
+}