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#![deprecated = "use std::vec::CowVec"]
pub use self::MaybeOwnedVector::*;
use std::default::Default;
use std::fmt;
use std::path::BytesContainer;
use std::slice;
pub enum MaybeOwnedVector<'a,T:'a> {
Growable(Vec<T>),
Borrowed(&'a [T]),
}
pub trait IntoMaybeOwnedVector<'a,T> {
fn into_maybe_owned(self) -> MaybeOwnedVector<'a,T>;
}
#[allow(deprecated)]
impl<'a,T:'a> IntoMaybeOwnedVector<'a,T> for Vec<T> {
#[allow(deprecated)]
#[inline]
fn into_maybe_owned(self) -> MaybeOwnedVector<'a,T> { Growable(self) }
}
#[allow(deprecated)]
impl<'a,T> IntoMaybeOwnedVector<'a,T> for &'a [T] {
#[allow(deprecated)]
#[inline]
fn into_maybe_owned(self) -> MaybeOwnedVector<'a,T> { Borrowed(self) }
}
impl<'a,T> MaybeOwnedVector<'a,T> {
pub fn iter(&'a self) -> slice::Iter<'a,T> {
match self {
&Growable(ref v) => v.as_slice().iter(),
&Borrowed(ref v) => v.iter(),
}
}
pub fn len(&self) -> uint { self.as_slice().len() }
#[allow(deprecated)]
pub fn is_empty(&self) -> bool { self.len() == 0 }
}
impl<'a, T: PartialEq> PartialEq for MaybeOwnedVector<'a, T> {
fn eq(&self, other: &MaybeOwnedVector<T>) -> bool {
self.as_slice() == other.as_slice()
}
}
impl<'a, T: Eq> Eq for MaybeOwnedVector<'a, T> {}
impl<'a, T: PartialOrd> PartialOrd for MaybeOwnedVector<'a, T> {
fn partial_cmp(&self, other: &MaybeOwnedVector<T>) -> Option<Ordering> {
self.as_slice().partial_cmp(other.as_slice())
}
}
impl<'a, T: Ord> Ord for MaybeOwnedVector<'a, T> {
fn cmp(&self, other: &MaybeOwnedVector<T>) -> Ordering {
self.as_slice().cmp(other.as_slice())
}
}
#[allow(deprecated)]
impl<'a, T: PartialEq, Sized? V: AsSlice<T>> Equiv<V> for MaybeOwnedVector<'a, T> {
fn equiv(&self, other: &V) -> bool {
self.as_slice() == other.as_slice()
}
}
impl<'b,T> AsSlice<T> for MaybeOwnedVector<'b,T> {
fn as_slice<'a>(&'a self) -> &'a [T] {
match self {
&Growable(ref v) => v.as_slice(),
&Borrowed(ref v) => v.as_slice(),
}
}
}
impl<'a,T> FromIterator<T> for MaybeOwnedVector<'a,T> {
#[allow(deprecated)]
fn from_iter<I:Iterator<T>>(iterator: I) -> MaybeOwnedVector<'a,T> {
Growable(FromIterator::from_iter(iterator))
}
}
impl<'a,T:fmt::Show> fmt::Show for MaybeOwnedVector<'a,T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.as_slice().fmt(f)
}
}
impl<'a, T: Clone> Clone for MaybeOwnedVector<'a, T> {
#[allow(deprecated)]
fn clone(&self) -> MaybeOwnedVector<'a, T> {
match *self {
Growable(ref v) => Growable(v.clone()),
Borrowed(v) => Borrowed(v)
}
}
}
impl<'a, T> Default for MaybeOwnedVector<'a, T> {
#[allow(deprecated)]
fn default() -> MaybeOwnedVector<'a, T> {
Growable(Vec::new())
}
}
impl<'a> BytesContainer for MaybeOwnedVector<'a, u8> {
fn container_as_bytes(&self) -> &[u8] {
self.as_slice()
}
}
impl<'a,T:Clone> MaybeOwnedVector<'a,T> {
pub fn into_vec(self) -> Vec<T> {
match self {
Growable(v) => v,
Borrowed(v) => v.to_vec(),
}
}
}