cargo-matrix 0.4.0

Run feature matrices against cargo commands that support feature lists
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// Copyright (c) 2024 cargo-matrix developers
//
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0> or the MIT
// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
// option. All files in the project carrying such notice may not be copied,
// modified, or distributed except according to those terms.

mod matrix;
mod set;

use derive_more::{AsMut, AsRef, Deref, DerefMut};
use serde::{Deserialize, Serialize};
use std::fmt::{Display, Formatter};

pub(crate) use self::matrix::Matrix as FeatureMatrix;
pub(crate) use self::set::Set as FeatureSet;

#[derive(
    Clone,
    Debug,
    Ord,
    PartialOrd,
    Eq,
    PartialEq,
    Hash,
    Deref,
    DerefMut,
    AsRef,
    AsMut,
    Serialize,
    Deserialize,
)]
#[serde(transparent)]
#[as_ref(forward)]
#[as_mut(forward)]
pub(crate) struct Feature(pub(crate) String);

impl Display for Feature {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        Display::fmt(&self.0, f)
    }
}

impl From<String> for Feature {
    fn from(s: String) -> Self {
        Feature(s)
    }
}

impl From<&String> for Feature {
    fn from(s: &String) -> Self {
        Feature(s.clone())
    }
}

impl From<&str> for Feature {
    fn from(s: &str) -> Self {
        Feature(s.to_string())
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn feature_display() {
        assert_eq!(format!("{}", Feature::from("foo")), "foo");
    }

    #[test]
    fn feature_from_string() {
        let f = Feature::from(String::from("bar"));
        assert_eq!(*f, "bar");
    }

    #[test]
    fn feature_from_str_ref() {
        let s = String::from("baz");
        let f = Feature::from(&s);
        assert_eq!(*f, "baz");
    }
}