diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
commit | 4f9fe856a25ab29345b90e7725509e9ee38a37be (patch) | |
tree | e4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /library/alloc/src/vec | |
parent | Adding upstream version 1.68.2+dfsg1. (diff) | |
download | rustc-upstream/1.69.0+dfsg1.tar.xz rustc-upstream/1.69.0+dfsg1.zip |
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/alloc/src/vec')
-rw-r--r-- | library/alloc/src/vec/mod.rs | 40 |
1 files changed, 4 insertions, 36 deletions
diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs index 36b0b3c9e..f2aa30f18 100644 --- a/library/alloc/src/vec/mod.rs +++ b/library/alloc/src/vec/mod.rs @@ -378,8 +378,8 @@ mod spec_extend; /// Currently, `Vec` does not guarantee the order in which elements are dropped. /// The order has changed in the past and may change again. /// -/// [`get`]: ../../std/vec/struct.Vec.html#method.get -/// [`get_mut`]: ../../std/vec/struct.Vec.html#method.get_mut +/// [`get`]: slice::get +/// [`get_mut`]: slice::get_mut /// [`String`]: crate::string::String /// [`&str`]: type@str /// [`shrink_to_fit`]: Vec::shrink_to_fit @@ -2647,35 +2647,6 @@ impl<T, A: Allocator> ops::DerefMut for Vec<T, A> { } #[cfg(not(no_global_oom_handling))] -trait SpecCloneFrom { - fn clone_from(this: &mut Self, other: &Self); -} - -#[cfg(not(no_global_oom_handling))] -impl<T: Clone, A: Allocator> SpecCloneFrom for Vec<T, A> { - default fn clone_from(this: &mut Self, other: &Self) { - // drop anything that will not be overwritten - this.truncate(other.len()); - - // self.len <= other.len due to the truncate above, so the - // slices here are always in-bounds. - let (init, tail) = other.split_at(this.len()); - - // reuse the contained values' allocations/resources. - this.clone_from_slice(init); - this.extend_from_slice(tail); - } -} - -#[cfg(not(no_global_oom_handling))] -impl<T: Copy, A: Allocator> SpecCloneFrom for Vec<T, A> { - fn clone_from(this: &mut Self, other: &Self) { - this.clear(); - this.extend_from_slice(other); - } -} - -#[cfg(not(no_global_oom_handling))] #[stable(feature = "rust1", since = "1.0.0")] impl<T: Clone, A: Allocator + Clone> Clone for Vec<T, A> { #[cfg(not(test))] @@ -2695,7 +2666,7 @@ impl<T: Clone, A: Allocator + Clone> Clone for Vec<T, A> { } fn clone_from(&mut self, other: &Self) { - SpecCloneFrom::clone_from(self, other) + crate::slice::SpecCloneIntoVec::clone_into(other.as_slice(), self); } } @@ -3160,10 +3131,7 @@ impl<T, const N: usize> From<[T; N]> for Vec<T> { /// ``` #[cfg(not(test))] fn from(s: [T; N]) -> Vec<T> { - <[T]>::into_vec( - #[rustc_box] - Box::new(s), - ) + <[T]>::into_vec(Box::new(s)) } #[cfg(test)] |