| // Copyright 2012 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 color::{red, green, blue, black, white, imaginary, purple, orange}; |
| |
| #[derive(Copy, Clone)] |
| enum color { |
| red = 0xff0000, |
| green = 0x00ff00, |
| blue = 0x0000ff, |
| black = 0x000000, |
| white = 0xFFFFFF, |
| imaginary = -1, |
| purple = 1 << 1, |
| orange = 8 >> 1 |
| } |
| |
| impl PartialEq for color { |
| fn eq(&self, other: &color) -> bool { |
| ((*self) as usize) == ((*other) as usize) |
| } |
| fn ne(&self, other: &color) -> bool { !(*self).eq(other) } |
| } |
| |
| pub fn main() { |
| test_color(red, 0xff0000, "red".to_string()); |
| test_color(green, 0x00ff00, "green".to_string()); |
| test_color(blue, 0x0000ff, "blue".to_string()); |
| test_color(black, 0x000000, "black".to_string()); |
| test_color(white, 0xFFFFFF, "white".to_string()); |
| test_color(imaginary, -1, "imaginary".to_string()); |
| test_color(purple, 2, "purple".to_string()); |
| test_color(orange, 4, "orange".to_string()); |
| } |
| |
| fn test_color(color: color, val: isize, name: String) { |
| //assert_eq!(unsafe::transmute(color), val); |
| assert_eq!(color as isize, val); |
| assert_eq!(get_color_alt(color), name); |
| assert_eq!(get_color_if(color), name); |
| } |
| |
| fn get_color_alt(color: color) -> String { |
| match color { |
| red => {"red".to_string()} |
| green => {"green".to_string()} |
| blue => {"blue".to_string()} |
| black => {"black".to_string()} |
| white => {"white".to_string()} |
| imaginary => {"imaginary".to_string()} |
| purple => {"purple".to_string()} |
| orange => {"orange".to_string()} |
| } |
| } |
| |
| fn get_color_if(color: color) -> String { |
| if color == red {"red".to_string()} |
| else if color == green {"green".to_string()} |
| else if color == blue {"blue".to_string()} |
| else if color == black {"black".to_string()} |
| else if color == white {"white".to_string()} |
| else if color == imaginary {"imaginary".to_string()} |
| else if color == purple {"purple".to_string()} |
| else if color == orange {"orange".to_string()} |
| else {"unknown".to_string()} |
| } |