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main.rs
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main.rs
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mod as_ref_str;
mod enum_count;
#[allow(dead_code)]
#[derive(Debug, Eq, PartialEq, strum::EnumString)]
enum E1 {
A1,
#[strum(serialize = "b")]
B1,
C1(usize),
D1 {
// TODO: Default が取れない場合
s: String,
},
}
#[cfg(test)]
mod tests {
use std::str::FromStr;
use super::*;
#[test]
fn e1_test() -> anyhow::Result<()> {
assert_eq!(E1::A1, E1::from_str("A1")?);
assert_eq!(E1::A1, E1::try_from("A1")?);
assert!(E1::from_str("B1").is_err());
assert_eq!(E1::B1, E1::try_from("b")?);
assert_eq!(E1::C1(0), E1::try_from("C1")?);
assert_eq!(
E1::D1 {
s: String::default()
},
E1::try_from("D1")?
);
Ok(())
}
}
fn main() {
println!("Hello, world!");
}