address 0.19.0-rc.2

This library aids in processing network addresses.
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use crate::parse_port;
use crate::{DomainRef, ParseError};

/// A domain reference with an associated port.
#[derive(Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Hash, Debug)]
pub struct EndpointRef<'a> {
    domain: DomainRef<'a>,
    port: u16,
}

impl<'a> EndpointRef<'a> {
    //! Construction

    /// Creates a new endpoint reference.
    pub const fn new(domain: DomainRef<'a>, port: u16) -> Self {
        Self { domain, port }
    }
}

impl<'a, D: Into<DomainRef<'a>>> From<(D, u16)> for EndpointRef<'a> {
    fn from(tuple: (D, u16)) -> Self {
        Self::new(tuple.0.into(), tuple.1)
    }
}

impl<'a> TryFrom<&'a str> for EndpointRef<'a> {
    type Error = ParseError;

    /// The domain name must already be lowercase, since a borrowed name cannot be normalized. Use
    /// `Endpoint::from_str` to parse mixed-case domain names.
    fn try_from(endpoint: &'a str) -> Result<Self, Self::Error> {
        let (domain, port) = parse_port(endpoint)?;
        let domain: DomainRef = DomainRef::try_from(domain)?;
        Ok(Self::new(domain, port))
    }
}

impl<'a> EndpointRef<'a> {
    //! Properties

    /// Gets the domain reference.
    pub const fn domain(self) -> DomainRef<'a> {
        self.domain
    }

    /// Gets the port.
    pub const fn port(self) -> u16 {
        self.port
    }
}

#[cfg(test)]
mod tests {
    use crate::{DomainRef, EndpointRef};

    #[test]
    fn construction() {
        let result: EndpointRef = EndpointRef::new(DomainRef::LOCALHOST, 80);
        assert_eq!(result.domain, DomainRef::LOCALHOST);
        assert_eq!(result.port, 80);

        let result: EndpointRef = (DomainRef::LOCALHOST, 80).into();
        assert_eq!(result.domain, DomainRef::LOCALHOST);
        assert_eq!(result.port, 80);
    }

    #[test]
    fn properties() {
        let endpoint: EndpointRef = (DomainRef::LOCALHOST, 80).into();
        assert_eq!(endpoint.domain(), DomainRef::LOCALHOST);
        assert_eq!(endpoint.port(), 80);
    }
}