mirror of https://github.com/rust-lang/rust
67 lines
2.0 KiB
Rust
67 lines
2.0 KiB
Rust
//@ run-pass
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#![allow(non_camel_case_types)]
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use color::{red, green, blue, black, white, imaginary, purple, orange};
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#[derive(Copy, Clone)]
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enum color {
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red = 0xff0000,
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green = 0x00ff00,
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blue = 0x0000ff,
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black = 0x000000,
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white = 0xFFFFFF,
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imaginary = -1,
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purple = 1 << 1,
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orange = 8 >> 1
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}
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impl PartialEq for color {
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fn eq(&self, other: &color) -> bool {
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((*self) as usize) == ((*other) as usize)
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}
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fn ne(&self, other: &color) -> bool { !(*self).eq(other) }
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}
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pub fn main() {
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test_color(red, 0xff0000, "red".to_string());
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test_color(green, 0x00ff00, "green".to_string());
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test_color(blue, 0x0000ff, "blue".to_string());
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test_color(black, 0x000000, "black".to_string());
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test_color(white, 0xFFFFFF, "white".to_string());
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test_color(imaginary, -1, "imaginary".to_string());
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test_color(purple, 2, "purple".to_string());
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test_color(orange, 4, "orange".to_string());
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}
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fn test_color(color: color, val: isize, name: String) {
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//assert_eq!(unsafe::transmute(color), val);
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assert_eq!(color as isize, val);
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assert_eq!(get_color_alt(color), name);
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assert_eq!(get_color_if(color), name);
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}
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fn get_color_alt(color: color) -> String {
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match color {
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red => {"red".to_string()}
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green => {"green".to_string()}
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blue => {"blue".to_string()}
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black => {"black".to_string()}
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white => {"white".to_string()}
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imaginary => {"imaginary".to_string()}
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purple => {"purple".to_string()}
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orange => {"orange".to_string()}
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}
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}
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fn get_color_if(color: color) -> String {
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if color == red {"red".to_string()}
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else if color == green {"green".to_string()}
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else if color == blue {"blue".to_string()}
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else if color == black {"black".to_string()}
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else if color == white {"white".to_string()}
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else if color == imaginary {"imaginary".to_string()}
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else if color == purple {"purple".to_string()}
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else if color == orange {"orange".to_string()}
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else {"unknown".to_string()}
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}
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