http_types_2/headers/
header.rs

1
2use crate::headers::{HeaderName, HeaderValue, Headers};
3
4/// A trait representing a [`HeaderName`] and [`HeaderValue`] pair.
5pub trait Header {
6    /// Access the header's name.
7    fn header_name(&self) -> HeaderName;
8
9    /// Access the header's value.
10    fn header_value(&self) -> HeaderValue;
11
12    /// Insert the header name and header value into something that looks like a
13    /// [`Headers`] map.
14    fn apply_header<H: AsMut<Headers>>(&self, mut headers: H) {
15        let name = self.header_name();
16        let value = self.header_value();
17
18        // The value should already have been validated when it was created, so this should
19        // possibly be done with an unsafe call
20        headers.as_mut().insert(name, value).unwrap();
21    }
22}
23
24impl Header for (&str, &str) {
25    fn header_name(&self) -> HeaderName {
26        HeaderName::from(self.0)
27    }
28
29    fn header_value(&self) -> HeaderValue {
30        HeaderValue::from_bytes(self.1.to_owned().into_bytes())
31            .expect("String slice should be valid ASCII")
32    }
33}
34
35impl<T: Header> Header for &T {
36    fn header_name(&self) -> HeaderName {
37        (**self).header_name()
38    }
39
40    fn header_value(&self) -> HeaderValue {
41        (**self).header_value()
42    }
43}
44
45#[cfg(test)]
46mod test {
47    use super::*;
48
49    #[test]
50    fn header_from_strings() {
51        let strings = ("Content-Length", "12");
52        assert_eq!(strings.header_name(), "Content-Length");
53        assert_eq!(strings.header_value(), "12");
54    }
55}
http_types_2/headers/header.rs

http_types_2/headers/
header.rs
