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Diffstat (limited to 'rust/alloc/vec/spec_extend.rs')
-rw-r--r-- | rust/alloc/vec/spec_extend.rs | 119 |
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) } - } -} |