| // Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use std::fmt; |
| |
| #[derive(Debug)] |
| enum A {} |
| #[derive(Debug)] |
| enum B { B1, B2, B3 } |
| #[derive(Debug)] |
| enum C { C1(isize), C2(B), C3(String) } |
| #[derive(Debug)] |
| enum D { D1{ a: isize } } |
| #[derive(Debug)] |
| struct E; |
| #[derive(Debug)] |
| struct F(isize); |
| #[derive(Debug)] |
| struct G(isize, isize); |
| #[derive(Debug)] |
| struct H { a: isize } |
| #[derive(Debug)] |
| struct I { a: isize, b: isize } |
| #[derive(Debug)] |
| struct J(Custom); |
| |
| struct Custom; |
| impl fmt::Debug for Custom { |
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
| write!(f, "yay") |
| } |
| } |
| |
| trait ToDebug { |
| fn to_show(&self) -> String; |
| } |
| |
| impl<T: fmt::Debug> ToDebug for T { |
| fn to_show(&self) -> String { |
| format!("{:?}", self) |
| } |
| } |
| |
| pub fn main() { |
| assert_eq!(B::B1.to_show(), "B1".to_string()); |
| assert_eq!(B::B2.to_show(), "B2".to_string()); |
| assert_eq!(C::C1(3).to_show(), "C1(3)".to_string()); |
| assert_eq!(C::C2(B::B2).to_show(), "C2(B2)".to_string()); |
| assert_eq!(D::D1{ a: 2 }.to_show(), "D1 { a: 2 }".to_string()); |
| assert_eq!(E.to_show(), "E".to_string()); |
| assert_eq!(F(3).to_show(), "F(3)".to_string()); |
| assert_eq!(G(3, 4).to_show(), "G(3, 4)".to_string()); |
| assert_eq!(I{ a: 2, b: 4 }.to_show(), "I { a: 2, b: 4 }".to_string()); |
| assert_eq!(J(Custom).to_show(), "J(yay)".to_string()); |
| } |