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use http::Method;
use ::{Header, HeaderName, HeaderValue};
#[derive(Clone, Debug, PartialEq, Eq, Hash)]
pub struct AccessControlRequestMethod(Method);
impl Header for AccessControlRequestMethod {
fn name() -> &'static HeaderName {
&::http::header::ACCESS_CONTROL_REQUEST_METHOD
}
fn decode<'i, I: Iterator<Item = &'i HeaderValue>>(values: &mut I) -> Result<Self, ::Error> {
values.next()
.and_then(|value| {
Method::from_bytes(value.as_bytes()).ok()
})
.map(AccessControlRequestMethod)
.ok_or_else(::Error::invalid)
}
fn encode<E: Extend<::HeaderValue>>(&self, values: &mut E) {
let s = match self.0 {
Method::GET => "GET",
Method::POST => "POST",
Method::PUT => "PUT",
Method::DELETE => "DELETE",
_ => {
let val = HeaderValue::from_str(self.0.as_ref())
.expect("Methods are also valid HeaderValues");
values.extend(::std::iter::once(val));
return;
}
};
values.extend(::std::iter::once(HeaderValue::from_static(s)));
}
}
impl From<Method> for AccessControlRequestMethod {
fn from(method: Method) -> AccessControlRequestMethod {
AccessControlRequestMethod(method)
}
}