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vec: implement DeepClone

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This commit is contained in:
Daniel Micay 2013-08-25 23:34:43 -04:00
parent 0baa92707a
commit 20567a0c3c
1 changed files with 9 additions and 2 deletions
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11
src/libstd/vec.rs
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@ -59,7 +59,7 @@
#[warn(non_camel_case_types)]; #[warn(non_camel_case_types)];
use cast; use cast;
use clone::Clone; use clone::{Clone, DeepClone};
use container::{Container, Mutable}; use container::{Container, Mutable};
use cmp::{Eq, TotalOrd, Ordering, Less, Equal, Greater}; use cmp::{Eq, TotalOrd, Ordering, Less, Equal, Greater};
use cmp; use cmp;
@ -2199,13 +2199,20 @@ pub fn copy_memory(dst: &mut [u8], src: &[u8], count: uint) {
} }
} }
impl<A:Clone> Clone for ~[A] { impl<A: Clone> Clone for ~[A] {
#[inline] #[inline]
fn clone(&self) -> ~[A] { fn clone(&self) -> ~[A] {
self.iter().map(|item| item.clone()).collect() self.iter().map(|item| item.clone()).collect()
} }
} }
impl<A: DeepClone> DeepClone for ~[A] {
#[inline]
fn deep_clone(&self) -> ~[A] {
self.iter().map(|item| item.deep_clone()).collect()
}
}
// This works because every lifetime is a sub-lifetime of 'static // This works because every lifetime is a sub-lifetime of 'static
impl<'self, A> Zero for &'self [A] { impl<'self, A> Zero for &'self [A] {
fn zero() -> &'self [A] { &'self [] } fn zero() -> &'self [A] { &'self [] }