use std::{
    fmt::{self, Display, Formatter},
    sync::Arc,
};

#[derive(Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
pub struct Identifier(Arc<String>);

impl Identifier {
    pub fn new<T: ToString>(string: T) -> Self {
        Identifier(Arc::new(string.to_string()))
    }

    pub fn as_str(&self) -> &str {
        self.0.as_str()
    }
}

impl Display for Identifier {
    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
        write!(f, "{}", self.0)
    }
}