1 // Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
13 The `ToStr` trait for converting to strings
22 /// A generic trait for converting a value to a string
24 /// Converts the value of `self` to an owned string
25 fn to_str(&self) -> String;
28 /// Trait for converting a type to a string, consuming it in the process.
30 /// Consume and convert to a string.
31 fn into_str(self) -> String;
34 impl<T: fmt::Show> ToStr for T {
35 fn to_str(&self) -> String {
46 fn test_simple_types() {
47 assert_eq!(1i.to_str(), "1".to_string());
48 assert_eq!((-1i).to_str(), "-1".to_string());
49 assert_eq!(200u.to_str(), "200".to_string());
50 assert_eq!(2u8.to_str(), "2".to_string());
51 assert_eq!(true.to_str(), "true".to_string());
52 assert_eq!(false.to_str(), "false".to_string());
53 assert_eq!(().to_str(), "()".to_string());
54 assert_eq!(("hi".to_string()).to_str(), "hi".to_string());
59 let x: Vec<int> = vec![];
60 assert_eq!(x.to_str(), "[]".to_string());
61 assert_eq!((vec![1i]).to_str(), "[1]".to_string());
62 assert_eq!((vec![1i, 2, 3]).to_str(), "[1, 2, 3]".to_string());
63 assert!((vec![vec![], vec![1i], vec![1i, 1]]).to_str() ==
64 "[[], [1], [1, 1]]".to_string());