headers.rs

use crate::headers::{HeaderName, HeaderValue, Headers, ToHeaderValues};

struct CustomHeader {}

impl CustomHeader {
    /// Create a new instance of `CustomHeader`.
    fn new() -> Self {
        todo!();
    }

    /// Create an instance of `CustomHeader` from a `Headers` instance.
    fn from_headers(headers: impl AsRef<Headers>) -> crate::Result<Option<Self>> {
        todo!();
    }

    /// Insert a `HeaderName` + `HeaderValue` pair into a `Headers` instance.
    fn apply(&self, headers: impl AsMut<Headers>) {
        todo!();
    }

    /// Get the `HeaderName`.
    fn name(&self) -> HeaderName {
        todo!();
    }

    /// Get the `HeaderValue`.
    fn value(&self) -> HeaderValue {
        todo!();
    }
}

// Conversion from `CustomHeader` -> `HeaderValue`.
impl ToHeaderValues for CustomHeader {
    type Iter;
    fn to_header_values(&self) -> crate::Result<Self::Iter> {
        todo!()
    }
}