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//! Extensions specific to the HTTP/2 protocol.
use crate::hpack::BytesStr;
use bytes::Bytes;
use std::fmt;
/// Represents the `:protocol` pseudo-header used by
/// the [Extended CONNECT Protocol].
///
/// [Extended CONNECT Protocol]: https://datatracker.ietf.org/doc/html/rfc8441#section-4
#[derive(Clone, Eq, PartialEq)]
pub struct Protocol {
value: BytesStr,
}
impl Protocol {
/// Converts a static string to a protocol name.
pub const fn from_static(value: &'static str) -> Self {
Self {
value: BytesStr::from_static(value),
}
}
/// Returns a str representation of the header.
pub fn as_str(&self) -> &str {
self.value.as_str()
}
pub(crate) fn try_from(bytes: Bytes) -> Result<Self, std::str::Utf8Error> {
Ok(Self {
value: BytesStr::try_from(bytes)?,
})
}
}
impl<'a> From<&'a str> for Protocol {
fn from(value: &'a str) -> Self {
Self {
value: BytesStr::from(value),
}
}
}
impl AsRef<[u8]> for Protocol {
fn as_ref(&self) -> &[u8] {
self.value.as_ref()
}
}
impl fmt::Debug for Protocol {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.value.fmt(f)
}
}
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