Enum tract_core::internal::tract_itertools::Position
source · pub enum Position<T> {
First(T),
Middle(T),
Last(T),
Only(T),
}
Expand description
A value yielded by WithPosition
.
Indicates the position of this element in the iterator results.
See .with_position()
for more information.
Variants§
First(T)
This is the first element.
Middle(T)
This is neither the first nor the last element.
Last(T)
This is the last element.
Only(T)
This is the only element.
Implementations§
source§impl<T> Position<T>
impl<T> Position<T>
sourcepub fn into_inner(self) -> T
pub fn into_inner(self) -> T
Return the inner value.
Trait Implementations§
source§impl<T> PartialEq<Position<T>> for Position<T>where
T: PartialEq<T>,
impl<T> PartialEq<Position<T>> for Position<T>where T: PartialEq<T>,
impl<T> Copy for Position<T>where T: Copy,
impl<T> StructuralPartialEq for Position<T>
Auto Trait Implementations§
impl<T> RefUnwindSafe for Position<T>where T: RefUnwindSafe,
impl<T> Send for Position<T>where T: Send,
impl<T> Sync for Position<T>where T: Sync,
impl<T> Unpin for Position<T>where T: Unpin,
impl<T> UnwindSafe for Position<T>where T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere T: Any,
source§fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.