Enum tract_core::internal::tract_itertools::Position

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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

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impl<T> Position<T>

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pub fn into_inner(self) -> T

Return the inner value.

Trait Implementations

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impl<T> Clone for Position<T> where
T: Clone,

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fn clone(&self) -> Position<T>

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<T> Debug for Position<T> where
T: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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impl<T> PartialEq<Position<T>> for Position<T> where
T: PartialEq<T>,

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fn eq(&self, other: &Position<T>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &Position<T>) -> bool

This method tests for !=.

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impl<T> Copy for Position<T> where
T: Copy,

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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

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> Downcast for T where
T: Any,

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fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<R, Global>`impl<R> Read for Box<R, Global> where R: Read + ?Sized, impl<W> Write for Box<W, Global> where W: Write + ?Sized, impl<I, A> Iterator for Box<I, A> where I: Iterator + ?Sized, A: Allocator, type Item = ::Item;impl<F, A> Future for Box<F, A> where F: Future + Unpin + ?Sized, A: Allocator + 'static, type Output = <F as Future>::Output;`

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. Read more

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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. Read more

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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. Read more

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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. Read more

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impl<T> DowncastSync for T where
T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum tract_core::internal::tract_itertools::Position

Variants

First(T)

Middle(T)

Last(T)

Only(T)

Implementations

impl<T> Position<T>

pub fn into_inner(self) -> T

Trait Implementations

impl<T> Clone for Position<T> where T: Clone,

fn clone(&self) -> Position<T>

fn clone_from(&mut self, source: &Self)

impl<T> Debug for Position<T> where T: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

impl<T> PartialEq<Position<T>> for Position<T> where T: PartialEq<T>,

fn eq(&self, other: &Position<T>) -> bool

fn ne(&self, other: &Position<T>) -> bool

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

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> Downcast for T where T: Any,

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> DowncastSync for T where T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync + 'static>

impl<T> DynClone for T where T: Clone,

fn __clone_box(&self, Private) -> *mut ()

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`First(T)`

`Middle(T)`

`Last(T)`

`Only(T)`

impl<T> Clone for Position<T> where
T: Clone,

impl<T> Debug for Position<T> where
T: Debug,

impl<T> PartialEq<Position<T>> for Position<T> where
T: PartialEq<T>,

impl<T> Copy for Position<T> where
T: Copy,

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,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T> Downcast for T where
T: Any,

impl<T> DowncastSync for T where
T: Any + Send + Sync,

impl<T> DynClone for T where
T: Clone,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,