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use std::ops::{Deref, DerefMut};
use std::hash::{Hash, Hasher};
use std::borrow::Borrow;
use crate::Cookie;
/// A `DeltaCookie` is a helper structure used in a cookie jar. It wraps a
/// `Cookie` so that it can be hashed and compared purely by name. It further
/// records whether the wrapped cookie is a "removal" cookie, that is, a cookie
/// that when sent to the client removes the named cookie on the client's
/// machine.
#[derive(Clone, Debug)]
pub struct DeltaCookie {
pub cookie: Cookie<'static>,
pub removed: bool,
}
impl DeltaCookie {
/// Create a new `DeltaCookie` that is being added to a jar.
#[inline]
pub fn added(cookie: Cookie<'static>) -> DeltaCookie {
DeltaCookie { cookie, removed: false, }
}
/// Create a new `DeltaCookie` that is being removed from a jar. The
/// `cookie` should be a "removal" cookie.
#[inline]
pub fn removed(cookie: Cookie<'static>) -> DeltaCookie {
DeltaCookie { cookie, removed: true, }
}
}
impl Deref for DeltaCookie {
type Target = Cookie<'static>;
fn deref(&self) -> &Cookie<'static> {
&self.cookie
}
}
impl DerefMut for DeltaCookie {
fn deref_mut(&mut self) -> &mut Cookie<'static> {
&mut self.cookie
}
}
impl PartialEq for DeltaCookie {
fn eq(&self, other: &DeltaCookie) -> bool {
self.name() == other.name()
}
}
impl Eq for DeltaCookie {}
impl Hash for DeltaCookie {
fn hash<H: Hasher>(&self, state: &mut H) {
self.name().hash(state);
}
}
impl Borrow<str> for DeltaCookie {
fn borrow(&self) -> &str {
self.name()
}
}
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