[−][src]Struct tract_nnef::internal::tract_itertools::GroupBy
GroupBy
is the storage for the lazy grouping operation.
If the groups are consumed in their original order, or if each
group is dropped without keeping it around, then GroupBy
uses
no allocations. It needs allocations only if several group iterators
are alive at the same time.
This type implements IntoIterator
(it is not an iterator
itself), because the group iterators need to borrow from this
value. It should be stored in a local variable or temporary and
iterated.
See .group_by()
for more information.
Trait Implementations
impl<'a, K, I, F> IntoIterator for &'a GroupBy<K, I, F> where
F: FnMut(&<I as Iterator>::Item) -> K,
I: Iterator,
K: PartialEq<K>,
<I as Iterator>::Item: 'a,
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F: FnMut(&<I as Iterator>::Item) -> K,
I: Iterator,
K: PartialEq<K>,
<I as Iterator>::Item: 'a,
Auto Trait Implementations
impl<K, I, F> !RefUnwindSafe for GroupBy<K, I, F>
impl<K, I, F> Send for GroupBy<K, I, F> where
F: Send,
I: Send,
K: Send,
<I as Iterator>::Item: Send,
F: Send,
I: Send,
K: Send,
<I as Iterator>::Item: Send,
impl<K, I, F> !Sync for GroupBy<K, I, F>
impl<K, I, F> Unpin for GroupBy<K, I, F> where
F: Unpin,
I: Unpin,
K: Unpin,
<I as Iterator>::Item: Unpin,
F: Unpin,
I: Unpin,
K: Unpin,
<I as Iterator>::Item: Unpin,
impl<K, I, F> UnwindSafe for GroupBy<K, I, F> where
F: UnwindSafe,
I: UnwindSafe,
K: UnwindSafe,
<I as Iterator>::Item: RefUnwindSafe + UnwindSafe,
F: UnwindSafe,
I: UnwindSafe,
K: UnwindSafe,
<I as Iterator>::Item: RefUnwindSafe + UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow(&self) -> &TⓘNotable traits for &'_ mut W
impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;
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Notable traits for &'_ mut W
impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut W
impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;
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Notable traits for &'_ mut W
impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized, impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;
impl<T> Downcast for T where
T: Any,
T: Any,
fn into_any(self: Box<T>) -> Box<dyn Any + 'static>ⓘNotable traits for Box<W>
impl<W> Write for Box<W> where
W: Write + ?Sized, impl<R> Read for Box<R> where
R: Read + ?Sized, impl<F> Future for Box<F> where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;impl<I> Iterator for Box<I> where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;
Notable traits for Box<W>
impl<W> Write for Box<W> where
W: Write + ?Sized, impl<R> Read for Box<R> where
R: Read + ?Sized, impl<F> Future for Box<F> where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;impl<I> Iterator for Box<I> where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn as_any(&self) -> &(dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,