diff options
| -rw-r--r-- | advanced/adv-fn-closure/Cargo.toml | 7 | ||||
| -rw-r--r-- | advanced/adv-fn-closure/src/main.rs | 13 | ||||
| -rw-r--r-- | advanced/adv-traits/src/main.rs | 161 | ||||
| -rw-r--r-- | advanced/adv-types/Cargo.toml | 7 | ||||
| -rw-r--r-- | advanced/adv-types/src/main.rs | 41 |
5 files changed, 213 insertions, 16 deletions
diff --git a/advanced/adv-fn-closure/Cargo.toml b/advanced/adv-fn-closure/Cargo.toml new file mode 100644 index 0000000..259562e --- /dev/null +++ b/advanced/adv-fn-closure/Cargo.toml @@ -0,0 +1,7 @@ +[package] +name = "adv-fn-closure" +version = "0.1.0" +authors = ["Adam Carpenter <53hornet@gmail.com>"] +edition = "2018" + +[dependencies] diff --git a/advanced/adv-fn-closure/src/main.rs b/advanced/adv-fn-closure/src/main.rs new file mode 100644 index 0000000..d31bd90 --- /dev/null +++ b/advanced/adv-fn-closure/src/main.rs @@ -0,0 +1,13 @@ +fn add_one(x: i32) -> i32 { + x + 1 +} + +fn do_twice(f: fn(i32) -> i32, arg: i32) -> i32 { + f(arg) + f(arg) +} + +fn main() { + let answer = do_twice(add_one, 5); + + println!("{}", answer); +} diff --git a/advanced/adv-traits/src/main.rs b/advanced/adv-traits/src/main.rs index 6ec0aac..659883c 100644 --- a/advanced/adv-traits/src/main.rs +++ b/advanced/adv-traits/src/main.rs @@ -8,27 +8,156 @@ // fn next(&mut self) -> Option<Self::Item>; //} // -use std::ops::Add; +// +//#[derive(Debug, PartialEq)] +//struct Point { +// x: i32, +// y: i32, +//} +// +//impl Add for Point { +// type Output = Point; +// +// fn add(self, other: Point) -> Point { +// Point { +// x: self.x + other.x, +// y: self.y + other.y, +// } +// } +//} -#[derive(Debug, PartialEq)] -struct Point { - x: i32, - y: i32, -} +//fn main() { +// assert_eq!(Point { x: 1, y: 0 } + Point { x: 2, y: 3 }, +// Point { x: 3, y: 3 }); +// println!("Done."); +//} + +//trait Add<RHS=Self> { +// type Output; +// +// fn add(self, rhs: RHS) -> Self::Output; +//} + +//use std::ops::Add; +// +//struct Millimeters(u32); +//struct Meters(u32); +// +//impl Add<Meters> for Millimeters { +// type Output = Millimeters; +// +// fn add(self, other: Meters) -> Millimeters { +// Millimeters(self.0 + (other.0 * 1000)) +// } +//} + + +//trait Pilot { +// fn fly(&self); +//} +// +//trait Wizard { +// fn fly(&self); +//} +// +//struct Human; +// +//impl Pilot for Human { +// fn fly(&self) { +// println!("Because I was inverted."); +// } +//} +// +//impl Wizard for Human { +// fn fly(&self) { +// println!("Fly, you fools."); +// } +//} +// +//impl Human { +// fn fly(&self) { +// println!("*feels real loose like a long-neck goose*"); +// } +//} +// +// +//trait Animal { +// fn baby_name() -> String; +//} +// +//struct Dog; +// +//impl Dog { +// fn baby_name() -> String { +// String::from("Spot") +// } +//} +// +//impl Animal for Dog { +// fn baby_name() -> String { +// String::from("puppy") +// } +//} + + +//fn main() { +// let person = Human; +// person.fly(); +// Pilot::fly(&person); +// Wizard::fly(&person); +// +// +// println!("A baby dog is called a {}", <Dog as Animal>::baby_name()); +// +// +// println!("Done."); +//} +// + + +//use std::fmt; +// +//trait OutlinePrint: fmt::Display { +// fn outline_print(&self) { +// let output = self.to_string(); +// let len = output.len(); +// println!("{}", "*".repeat(len + 4)); +// println!("*{}*", " ".repeat(len + 2)); +// println!("* {} *", output); +// println!("*{}*", " ".repeat(len + 2)); +// println!("{}", "*".repeat(len + 4)); +// } +//} +// +//struct Point { +// x: i32, +// y: i32, +//} +// +//impl OutlinePrint for Point {} +// +//impl fmt::Display for Point { +// fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { +// write!(f, "({}, {})", self.x, self.y) +// } +//} +// +//fn main() { +// let point = Point { x: 5, y: 6 }; +// point.outline_print(); +//} + +use std::fmt; -impl Add for Point { - type Output = Point; +struct Wrapper(Vec<String>); - fn add(self, other: Point) -> Point { - Point { - x: self.x + other.x, - y: self.y + other.y, - } +impl fmt::Display for Wrapper { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + write!(f, "[{}]", self.0.join(", ")) } } fn main() { - assert_eq!(Point { x: 1, y: 0 } + Point { x: 2, y: 3 }, - Point { x: 3, y: 3 }); - println!("Done."); + let w = Wrapper(vec![String::from("hello"), String::from("world")]); + println!("w = {}", w); } diff --git a/advanced/adv-types/Cargo.toml b/advanced/adv-types/Cargo.toml new file mode 100644 index 0000000..a3ca211 --- /dev/null +++ b/advanced/adv-types/Cargo.toml @@ -0,0 +1,7 @@ +[package] +name = "adv-types" +version = "0.1.0" +authors = ["Adam Carpenter <53hornet@gmail.com>"] +edition = "2018" + +[dependencies] diff --git a/advanced/adv-types/src/main.rs b/advanced/adv-types/src/main.rs new file mode 100644 index 0000000..60d42b2 --- /dev/null +++ b/advanced/adv-types/src/main.rs @@ -0,0 +1,41 @@ +//use std::io::Error; +//use std::fmt; + +//pub trait Write { +// +// fn write(&mut self, buf: &[u8]) -> Result<usize>; +// fn flush(&mut self) -> Result<(), Error>; +// +// fn write_all(&mut self, buf: &[u8]) -> Result<()>; +// fn write_fmt(&mut self, fmt: fmt::Arguments) -> Result<()>; +//} + +//fn main() { +// type Miles = i32; +// +// let x: i32 = 5; +// let y: Miles = 5; +// +// println!("x + y = {}", x + y); + + +//} + +//type Thunk = Box<dyn Fn() + Send + 'static>; +// +//let f: Thunk = Box::new(|| println!("hi")); +// +//fn takes_long_type(f: Thunk) { +//} +// +//fn returns_long_type() -> Thunk { +//} + +fn main() { + print!("forever"); + + loop { + print!("and ever "); + } +} + |