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author | Valentin Popov <valentin@popov.link> | 2024-07-19 15:37:58 +0300 |
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committer | Valentin Popov <valentin@popov.link> | 2024-07-19 15:37:58 +0300 |
commit | a990de90fe41456a23e58bd087d2f107d321f3a1 (patch) | |
tree | 15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/rayon/src/iter/fold.rs | |
parent | 3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff) | |
download | fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip |
Deleted vendor folder
Diffstat (limited to 'vendor/rayon/src/iter/fold.rs')
-rw-r--r-- | vendor/rayon/src/iter/fold.rs | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/vendor/rayon/src/iter/fold.rs b/vendor/rayon/src/iter/fold.rs deleted file mode 100644 index 345afbd..0000000 --- a/vendor/rayon/src/iter/fold.rs +++ /dev/null @@ -1,302 +0,0 @@ -use super::plumbing::*; -use super::*; - -use std::fmt::{self, Debug}; - -impl<U, I, ID, F> Fold<I, ID, F> -where - I: ParallelIterator, - F: Fn(U, I::Item) -> U + Sync + Send, - ID: Fn() -> U + Sync + Send, - U: Send, -{ - pub(super) fn new(base: I, identity: ID, fold_op: F) -> Self { - Fold { - base, - identity, - fold_op, - } - } -} - -/// `Fold` is an iterator that applies a function over an iterator producing a single value. -/// This struct is created by the [`fold()`] method on [`ParallelIterator`] -/// -/// [`fold()`]: trait.ParallelIterator.html#method.fold -/// [`ParallelIterator`]: trait.ParallelIterator.html -#[must_use = "iterator adaptors are lazy and do nothing unless consumed"] -#[derive(Clone)] -pub struct Fold<I, ID, F> { - base: I, - identity: ID, - fold_op: F, -} - -impl<I: ParallelIterator + Debug, ID, F> Debug for Fold<I, ID, F> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("Fold").field("base", &self.base).finish() - } -} - -impl<U, I, ID, F> ParallelIterator for Fold<I, ID, F> -where - I: ParallelIterator, - F: Fn(U, I::Item) -> U + Sync + Send, - ID: Fn() -> U + Sync + Send, - U: Send, -{ - type Item = U; - - fn drive_unindexed<C>(self, consumer: C) -> C::Result - where - C: UnindexedConsumer<Self::Item>, - { - let consumer1 = FoldConsumer { - base: consumer, - fold_op: &self.fold_op, - identity: &self.identity, - }; - self.base.drive_unindexed(consumer1) - } -} - -struct FoldConsumer<'c, C, ID, F> { - base: C, - fold_op: &'c F, - identity: &'c ID, -} - -impl<'r, U, T, C, ID, F> Consumer<T> for FoldConsumer<'r, C, ID, F> -where - C: Consumer<U>, - F: Fn(U, T) -> U + Sync, - ID: Fn() -> U + Sync, - U: Send, -{ - type Folder = FoldFolder<'r, C::Folder, U, F>; - type Reducer = C::Reducer; - type Result = C::Result; - - fn split_at(self, index: usize) -> (Self, Self, Self::Reducer) { - let (left, right, reducer) = self.base.split_at(index); - ( - FoldConsumer { base: left, ..self }, - FoldConsumer { - base: right, - ..self - }, - reducer, - ) - } - - fn into_folder(self) -> Self::Folder { - FoldFolder { - base: self.base.into_folder(), - item: (self.identity)(), - fold_op: self.fold_op, - } - } - - fn full(&self) -> bool { - self.base.full() - } -} - -impl<'r, U, T, C, ID, F> UnindexedConsumer<T> for FoldConsumer<'r, C, ID, F> -where - C: UnindexedConsumer<U>, - F: Fn(U, T) -> U + Sync, - ID: Fn() -> U + Sync, - U: Send, -{ - fn split_off_left(&self) -> Self { - FoldConsumer { - base: self.base.split_off_left(), - ..*self - } - } - - fn to_reducer(&self) -> Self::Reducer { - self.base.to_reducer() - } -} - -struct FoldFolder<'r, C, ID, F> { - base: C, - fold_op: &'r F, - item: ID, -} - -impl<'r, C, ID, F, T> Folder<T> for FoldFolder<'r, C, ID, F> -where - C: Folder<ID>, - F: Fn(ID, T) -> ID + Sync, -{ - type Result = C::Result; - - fn consume(self, item: T) -> Self { - let item = (self.fold_op)(self.item, item); - FoldFolder { - base: self.base, - fold_op: self.fold_op, - item, - } - } - - fn consume_iter<I>(self, iter: I) -> Self - where - I: IntoIterator<Item = T>, - { - fn not_full<C, ID, T>(base: &C) -> impl Fn(&T) -> bool + '_ - where - C: Folder<ID>, - { - move |_| !base.full() - } - - let base = self.base; - let item = iter - .into_iter() - // stop iterating if another thread has finished - .take_while(not_full(&base)) - .fold(self.item, self.fold_op); - - FoldFolder { - base, - item, - fold_op: self.fold_op, - } - } - - fn complete(self) -> C::Result { - self.base.consume(self.item).complete() - } - - fn full(&self) -> bool { - self.base.full() - } -} - -// /////////////////////////////////////////////////////////////////////////// - -impl<U, I, F> FoldWith<I, U, F> -where - I: ParallelIterator, - F: Fn(U, I::Item) -> U + Sync + Send, - U: Send + Clone, -{ - pub(super) fn new(base: I, item: U, fold_op: F) -> Self { - FoldWith { - base, - item, - fold_op, - } - } -} - -/// `FoldWith` is an iterator that applies a function over an iterator producing a single value. -/// This struct is created by the [`fold_with()`] method on [`ParallelIterator`] -/// -/// [`fold_with()`]: trait.ParallelIterator.html#method.fold_with -/// [`ParallelIterator`]: trait.ParallelIterator.html -#[must_use = "iterator adaptors are lazy and do nothing unless consumed"] -#[derive(Clone)] -pub struct FoldWith<I, U, F> { - base: I, - item: U, - fold_op: F, -} - -impl<I: ParallelIterator + Debug, U: Debug, F> Debug for FoldWith<I, U, F> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("FoldWith") - .field("base", &self.base) - .field("item", &self.item) - .finish() - } -} - -impl<U, I, F> ParallelIterator for FoldWith<I, U, F> -where - I: ParallelIterator, - F: Fn(U, I::Item) -> U + Sync + Send, - U: Send + Clone, -{ - type Item = U; - - fn drive_unindexed<C>(self, consumer: C) -> C::Result - where - C: UnindexedConsumer<Self::Item>, - { - let consumer1 = FoldWithConsumer { - base: consumer, - item: self.item, - fold_op: &self.fold_op, - }; - self.base.drive_unindexed(consumer1) - } -} - -struct FoldWithConsumer<'c, C, U, F> { - base: C, - item: U, - fold_op: &'c F, -} - -impl<'r, U, T, C, F> Consumer<T> for FoldWithConsumer<'r, C, U, F> -where - C: Consumer<U>, - F: Fn(U, T) -> U + Sync, - U: Send + Clone, -{ - type Folder = FoldFolder<'r, C::Folder, U, F>; - type Reducer = C::Reducer; - type Result = C::Result; - - fn split_at(self, index: usize) -> (Self, Self, Self::Reducer) { - let (left, right, reducer) = self.base.split_at(index); - ( - FoldWithConsumer { - base: left, - item: self.item.clone(), - ..self - }, - FoldWithConsumer { - base: right, - ..self - }, - reducer, - ) - } - - fn into_folder(self) -> Self::Folder { - FoldFolder { - base: self.base.into_folder(), - item: self.item, - fold_op: self.fold_op, - } - } - - fn full(&self) -> bool { - self.base.full() - } -} - -impl<'r, U, T, C, F> UnindexedConsumer<T> for FoldWithConsumer<'r, C, U, F> -where - C: UnindexedConsumer<U>, - F: Fn(U, T) -> U + Sync, - U: Send + Clone, -{ - fn split_off_left(&self) -> Self { - FoldWithConsumer { - base: self.base.split_off_left(), - item: self.item.clone(), - ..*self - } - } - - fn to_reducer(&self) -> Self::Reducer { - self.base.to_reducer() - } -} |