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-rw-r--r--rust/alloc/vec/spec_extend.rs119
1 files changed, 0 insertions, 119 deletions
diff --git a/rust/alloc/vec/spec_extend.rs b/rust/alloc/vec/spec_extend.rs
deleted file mode 100644
index ada919537446..000000000000
--- a/rust/alloc/vec/spec_extend.rs
+++ /dev/null
@@ -1,119 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0 OR MIT
-
-use crate::alloc::Allocator;
-use crate::collections::TryReserveError;
-use core::iter::TrustedLen;
-use core::slice::{self};
-
-use super::{IntoIter, Vec};
-
-// Specialization trait used for Vec::extend
-#[cfg(not(no_global_oom_handling))]
-pub(super) trait SpecExtend<T, I> {
- fn spec_extend(&mut self, iter: I);
-}
-
-// Specialization trait used for Vec::try_extend
-pub(super) trait TrySpecExtend<T, I> {
- fn try_spec_extend(&mut self, iter: I) -> Result<(), TryReserveError>;
-}
-
-#[cfg(not(no_global_oom_handling))]
-impl<T, I, A: Allocator> SpecExtend<T, I> for Vec<T, A>
-where
- I: Iterator<Item = T>,
-{
- default fn spec_extend(&mut self, iter: I) {
- self.extend_desugared(iter)
- }
-}
-
-impl<T, I, A: Allocator> TrySpecExtend<T, I> for Vec<T, A>
-where
- I: Iterator<Item = T>,
-{
- default fn try_spec_extend(&mut self, iter: I) -> Result<(), TryReserveError> {
- self.try_extend_desugared(iter)
- }
-}
-
-#[cfg(not(no_global_oom_handling))]
-impl<T, I, A: Allocator> SpecExtend<T, I> for Vec<T, A>
-where
- I: TrustedLen<Item = T>,
-{
- default fn spec_extend(&mut self, iterator: I) {
- self.extend_trusted(iterator)
- }
-}
-
-impl<T, I, A: Allocator> TrySpecExtend<T, I> for Vec<T, A>
-where
- I: TrustedLen<Item = T>,
-{
- default fn try_spec_extend(&mut self, iterator: I) -> Result<(), TryReserveError> {
- self.try_extend_trusted(iterator)
- }
-}
-
-#[cfg(not(no_global_oom_handling))]
-impl<T, A: Allocator> SpecExtend<T, IntoIter<T>> for Vec<T, A> {
- fn spec_extend(&mut self, mut iterator: IntoIter<T>) {
- unsafe {
- self.append_elements(iterator.as_slice() as _);
- }
- iterator.forget_remaining_elements();
- }
-}
-
-impl<T, A: Allocator> TrySpecExtend<T, IntoIter<T>> for Vec<T, A> {
- fn try_spec_extend(&mut self, mut iterator: IntoIter<T>) -> Result<(), TryReserveError> {
- unsafe {
- self.try_append_elements(iterator.as_slice() as _)?;
- }
- iterator.forget_remaining_elements();
- Ok(())
- }
-}
-
-#[cfg(not(no_global_oom_handling))]
-impl<'a, T: 'a, I, A: Allocator> SpecExtend<&'a T, I> for Vec<T, A>
-where
- I: Iterator<Item = &'a T>,
- T: Clone,
-{
- default fn spec_extend(&mut self, iterator: I) {
- self.spec_extend(iterator.cloned())
- }
-}
-
-impl<'a, T: 'a, I, A: Allocator> TrySpecExtend<&'a T, I> for Vec<T, A>
-where
- I: Iterator<Item = &'a T>,
- T: Clone,
-{
- default fn try_spec_extend(&mut self, iterator: I) -> Result<(), TryReserveError> {
- self.try_spec_extend(iterator.cloned())
- }
-}
-
-#[cfg(not(no_global_oom_handling))]
-impl<'a, T: 'a, A: Allocator> SpecExtend<&'a T, slice::Iter<'a, T>> for Vec<T, A>
-where
- T: Copy,
-{
- fn spec_extend(&mut self, iterator: slice::Iter<'a, T>) {
- let slice = iterator.as_slice();
- unsafe { self.append_elements(slice) };
- }
-}
-
-impl<'a, T: 'a, A: Allocator> TrySpecExtend<&'a T, slice::Iter<'a, T>> for Vec<T, A>
-where
- T: Copy,
-{
- fn try_spec_extend(&mut self, iterator: slice::Iter<'a, T>) -> Result<(), TryReserveError> {
- let slice = iterator.as_slice();
- unsafe { self.try_append_elements(slice) }
- }
-}