ex(10): modules

.rustlings-state.txt

···
 DON'T EDIT THIS FILE!
 
-modules1
+hashmaps1
 
 intro1
 intro2
···
 strings1
 strings2
 strings3
-strings4
+strings4
+modules1
+modules2
+modules3

exercises/10_modules/modules1.rs

···
         String::from("Ginger")
     }
 
-    fn make_sausage() {
+    pub fn make_sausage() {
         get_secret_recipe();
         println!("sausage!");
     }

exercises/10_modules/modules2.rs

···
     // TODO: Add the following two `use` statements after fixing them.
     // use self::fruits::PEAR as ???;
     // use self::veggies::CUCUMBER as ???;
+    pub use self::fruits::PEAR as fruit;
+    pub use self::veggies::CUCUMBER as veggie;
 
     mod fruits {
         pub const PEAR: &str = "Pear";

exercises/10_modules/modules3.rs

···
 // TODO: Bring `SystemTime` and `UNIX_EPOCH` from the `std::time` module into
 // your scope. Bonus style points if you can do it with one line!
 // use ???;
+use std::time::{SystemTime, UNIX_EPOCH};
 
 fn main() {
     match SystemTime::now().duration_since(UNIX_EPOCH) {

solutions/10_modules/modules1.rs

···
+mod sausage_factory {
+    fn get_secret_recipe() -> String {
+        String::from("Ginger")
+    }
+
+    // Added `pub` before `fn` to make the function accessible outside the module.
+    pub fn make_sausage() {
+        get_secret_recipe();
+        println!("sausage!");
+    }
+}
+
 fn main() {
-    // DON'T EDIT THIS SOLUTION FILE!
-    // It will be automatically filled after you finish the exercise.
+    sausage_factory::make_sausage();
 }

solutions/10_modules/modules2.rs

···
+mod delicious_snacks {
+    // Added `pub` and used the expected alias after `as`.
+    pub use self::fruits::PEAR as fruit;
+    pub use self::veggies::CUCUMBER as veggie;
+
+    mod fruits {
+        pub const PEAR: &str = "Pear";
+        pub const APPLE: &str = "Apple";
+    }
+
+    mod veggies {
+        pub const CUCUMBER: &str = "Cucumber";
+        pub const CARROT: &str = "Carrot";
+    }
+}
+
 fn main() {
-    // DON'T EDIT THIS SOLUTION FILE!
-    // It will be automatically filled after you finish the exercise.
+    println!(
+        "favorite snacks: {} and {}",
+        delicious_snacks::fruit,
+        delicious_snacks::veggie,
+    );
 }

solutions/10_modules/modules3.rs

···
+use std::time::{SystemTime, UNIX_EPOCH};
+
 fn main() {
-    // DON'T EDIT THIS SOLUTION FILE!
-    // It will be automatically filled after you finish the exercise.
+    match SystemTime::now().duration_since(UNIX_EPOCH) {
+        Ok(n) => println!("1970-01-01 00:00:00 UTC was {} seconds ago!", n.as_secs()),
+        Err(_) => panic!("SystemTime before UNIX EPOCH!"),
+    }
 }