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macro_rules! enum_method {
(enum $name:ident {
$($variant:ident = $val:expr),*
}) => {
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[non_exhaustive]
pub enum $name {
$(
#[doc="`"]
#[doc=$val]
#[doc="`"]
$variant
),*
}
impl $name {
pub fn as_str(&self) -> &'static str {
match self {
$(Self::$variant => $val),*
}
}
}
impl std::convert::TryFrom<&str> for $name {
type Error = ();
fn try_from(value: &str) -> Result<Self, Self::Error> {
match value.to_ascii_uppercase().as_ref() {
$($val => Ok(Self::$variant)),*,
_ => Err(())
}
}
}
impl std::fmt::Display for $name {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self.as_str())
}
}
}
}
enum_method! {
enum Method {
Get = "GET",
Post = "POST",
Put = "PUT",
Delete = "DELETE",
Head = "HEAD",
Options = "OPTIONS",
Connect = "CONNECT",
Patch = "PATCH",
Trace = "TRACE"
}
}