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use HeaderValue;
//pub use self::charset::Charset;
//pub use self::encoding::Encoding;
pub(crate) use self::entity::{EntityTag, EntityTagRange};
pub(crate) use self::flat_csv::{FlatCsv, SemiColon};
pub(crate) use self::fmt::fmt;
pub(crate) use self::http_date::HttpDate;
pub(crate) use self::iter::IterExt;
//pub use language_tags::LanguageTag;
//pub use self::quality_value::{Quality, QualityValue};
pub(crate) use self::seconds::Seconds;
pub(crate) use self::value_string::HeaderValueString;
//mod charset;
pub(crate) mod csv;
//mod encoding;
mod entity;
mod flat_csv;
mod fmt;
mod http_date;
mod iter;
//mod quality_value;
mod seconds;
mod value_string;
macro_rules! error_type {
($name:ident) => {
#[doc(hidden)]
pub struct $name {
_inner: (),
}
impl ::std::fmt::Debug for $name {
fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
f.debug_struct(stringify!($name)).finish()
}
}
impl ::std::fmt::Display for $name {
fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
f.write_str(stringify!($name))
}
}
impl ::std::error::Error for $name {}
};
}
macro_rules! derive_header {
($type:ident(_), name: $name:ident) => {
impl crate::Header for $type {
fn name() -> &'static ::http::header::HeaderName {
&::http::header::$name
}
fn decode<'i, I>(values: &mut I) -> Result<Self, ::Error>
where
I: Iterator<Item = &'i ::http::header::HeaderValue>,
{
::util::TryFromValues::try_from_values(values).map($type)
}
fn encode<E: Extend<::HeaderValue>>(&self, values: &mut E) {
values.extend(::std::iter::once((&self.0).into()));
}
}
};
}
/// A helper trait for use when deriving `Header`.
pub(crate) trait TryFromValues: Sized {
/// Try to convert from the values into an instance of `Self`.
fn try_from_values<'i, I>(values: &mut I) -> Result<Self, ::Error>
where
Self: Sized,
I: Iterator<Item = &'i HeaderValue>;
}
impl TryFromValues for HeaderValue {
fn try_from_values<'i, I>(values: &mut I) -> Result<Self, ::Error>
where
I: Iterator<Item = &'i HeaderValue>,
{
values.next().cloned().ok_or_else(|| ::Error::invalid())
}
}