Init.

1 files changed, 79 insertions, 0 deletions

diff --git a/rust-book/advanced/adv-fn-closure/src/main.rs b/rust-book/advanced/adv-fn-closure/src/main.rs
new file mode 100755
index 0000000..064f300
--- /dev/null
+++ b/rust-book/advanced/adv-fn-closure/src/main.rs
@@ -0,0 +1,79 @@
+use hello_macro::HelloMacro;
+//use hello_macro_derive::HelloMacro;
+
+struct Pancakes;
+
+impl HelloMacro for Pancakes {
+    fn hello_macro() {
+        println!("pancakes");
+    }
+}
+
+fn main() {
+    Pancakes::hello_macro();
+}
+
+//fn add_one(x: i32) -> i32 {
+//    x + 1
+//}
+//
+//fn do_twice(f: fn(i32) -> i32, arg: i32) -> i32 {
+//    f(arg) + f(arg)
+//}
+
+
+//fn returns_closure() -> Box<dyn Fn(i32) -> i32> {
+//    Box::new(|x| x + 1)
+//}
+//
+//
+//enum Status {
+//    Value(u32),
+//    Stop,
+//}
+
+
+//#[macro_export]
+//macro_rules! vec {
+//    ( $( $x:expr ), * ) => {
+//        {
+//            let mut temp_vec = Vec::new();
+//            $(
+//                temp_vec.push($x);
+//            )*
+//            temp_vec
+//        }
+//    };
+//}
+
+
+//#[some_attribute]
+//pub fn some_name(input: TokenStream) -> TokenStream {
+//}
+//
+//
+//fn main() {
+//    let answer = do_twice(add_one, 5);
+//
+//    println!("{}", answer);
+
+
+//    let list_of_numbers = vec![1, 2, 3];
+//    let list_of_strings: Vec<String> = list_of_numbers
+//        .iter()
+//        .map(ToString::to_string)
+//        .collect();
+//    dbg!(list_of_strings);
+
+
+//    let list_of_statuses: Vec<Status> = 
+//        (0u32..20)
+//        .map(Status::Value)
+//        .collect();
+
+
+    //returns_closure();
+
+
+
+//}