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pub use kinds::PrimaryColor;
pub use kinds::SecondaryColor;
pub use utils::mix;
pub mod kinds {
pub enum PrimaryColor {
Red,
Yellow,
Blue,
}
pub enum SecondaryColor {
Orange,
Green,
Purple,
}
}
pub mod utils {
use kinds::*;
pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> Option<SecondaryColor> {
match (c1, c2) {
(PrimaryColor::Red, PrimaryColor::Yellow) => Some(SecondaryColor::Orange),
(PrimaryColor::Red, PrimaryColor::Blue) => Some(SecondaryColor::Purple),
(PrimaryColor::Red, PrimaryColor::Red) => None,
(PrimaryColor::Yellow, PrimaryColor::Blue) => Some(SecondaryColor::Green),
(PrimaryColor::Yellow, PrimaryColor::Red) => Some(SecondaryColor::Orange),
(PrimaryColor::Yellow, PrimaryColor::Yellow) => None,
(PrimaryColor::Blue, PrimaryColor::Red) => Some(SecondaryColor::Purple),
(PrimaryColor::Blue, PrimaryColor::Yellow) => Some(SecondaryColor::Green),
(PrimaryColor::Blue, PrimaryColor::Blue) => None,
}
}
}
#[cfg(test)]
mod tests {
#[test]
fn it_works() {
assert_eq!(2 + 2, 4);
}
}