Trait enum_iterator::Sequence

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pub trait Sequence: Sized {
    const CARDINALITY: usize;

    // Required methods
    fn next(&self) -> Option<Self>;
    fn previous(&self) -> Option<Self>;
    fn first() -> Option<Self>;
    fn last() -> Option<Self>;
}
Expand description

Trait to iterate over the values of a type.

The crate root defines useful functions to work with types implementing Sequence.

§Derivation

Sequence can be derived for enum and struct types. Specifically, it can be derived for:

  • Enumerations whose variants meet one of the following criteria:
    • The variant does not have fields.
    • The variant has fields meeting all these conditions:
      • Every field has a type that implements Sequence.
      • Every field but the last one has a type that implements Clone.
  • Enumerations without variants.
  • Structures whose fields meet all these conditions:
    • Every field has a type that implements Sequence.
    • Every field but the last one has a type that implements Clone.
  • Unit structures (i.e. without fields).

The cardinality (number of values) of the type must not exceed usize::MAX.

§Laws

T: Sequence implies the following assertions:

  • T::first().and_then(|x| x.previous()).is_none()
  • T::last().and_then(|x| x.next()).is_none()
  • T::first().is_none()T::last().is_none()
  • std::iter::successors(T::first(), T::next) must eventually yield T::last().
  • If T is inhabited, T::first().is_some().

If a manual implementation of Sequence violates any of these laws, the functions at the crate root may misbehave, including panicking.

§Examples

§C-like enumeration

use enum_iterator::{all, cardinality, Sequence};

#[derive(Clone, Copy, Debug, PartialEq, Sequence)]
enum Direction { North, South, West, East }

assert_eq!(cardinality::<Direction>(), 4);
assert_eq!(all::<Direction>().collect::<Vec<_>>(), [
    Direction::North,
    Direction::South,
    Direction::West,
    Direction::East,
]);

§Enumeration with data

use enum_iterator::{all, cardinality, Sequence};

#[derive(Clone, Copy, Debug, PartialEq, Sequence)]
enum Direction { North, South, West, East }

#[derive(Clone, Copy, Debug, PartialEq, Sequence)]
enum Greeting {
    Hi,
    Bye,
}

#[derive(Clone, Copy, Debug, PartialEq, Sequence)]
enum Action {
    Move(Direction),
    Jump,
    Talk { greeting: Greeting, loud: bool },
}

assert_eq!(cardinality::<Action>(), 4 + 1 + 2 * 2);
assert_eq!(all::<Action>().collect::<Vec<_>>(), [
    Action::Move(Direction::North),
    Action::Move(Direction::South),
    Action::Move(Direction::West),
    Action::Move(Direction::East),
    Action::Jump,
    Action::Talk { greeting: Greeting::Hi, loud: false },
    Action::Talk { greeting: Greeting::Hi, loud: true },
    Action::Talk { greeting: Greeting::Bye, loud: false },
    Action::Talk { greeting: Greeting::Bye, loud: true },
]);

§Structure

use enum_iterator::{all, cardinality, Sequence};

#[derive(Clone, Copy, Debug, PartialEq, Sequence)]
enum Side {
    Left,
    Right,
}

#[derive(Clone, Copy, Debug, PartialEq, Sequence)]
enum LimbKind {
    Arm,
    Leg,
}

#[derive(Debug, PartialEq, Sequence)]
struct Limb {
    kind: LimbKind,
    side: Side,
}

assert_eq!(cardinality::<Limb>(), 4);
assert_eq!(all::<Limb>().collect::<Vec<_>>(), [
    Limb { kind: LimbKind::Arm, side: Side::Left },
    Limb { kind: LimbKind::Arm, side: Side::Right },
    Limb { kind: LimbKind::Leg, side: Side::Left },
    Limb { kind: LimbKind::Leg, side: Side::Right },
]);

Required Associated Constants§

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const CARDINALITY: usize

Number of values of type Self.

§Example
use enum_iterator::Sequence;

#[derive(Sequence)]
enum Day { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday }

assert_eq!(Day::CARDINALITY, 7);

Required Methods§

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fn next(&self) -> Option<Self>

Returns value following *self or None if this was the end.

Values are yielded in the following order. Comparisons between values are based on their relative order as yielded by next; an element yielded after another is considered greater.

  • For primitive types, in increasing order (same as Ord).
  • For arrays and tuples, in lexicographic order of the sequence of their elements.
  • When derived for an enumeration, in variant definition order.
  • When derived for a structure, in lexicographic order of the sequence of its fields taken in definition order.

The order described above is the same as Ord if any custom Sequence implementation follows Ord and any enumeration has its variants defined in increasing order of discriminant.

§Example
use enum_iterator::Sequence;

#[derive(Debug, PartialEq, Sequence)]
enum Day { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday }

assert_eq!(Day::Tuesday.next(), Some(Day::Wednesday));
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fn previous(&self) -> Option<Self>

Returns value preceding *self or None if this was the beginning.

§Example
use enum_iterator::Sequence;

#[derive(Debug, PartialEq, Sequence)]
enum Day { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday }

assert_eq!(Day::Wednesday.previous(), Some(Day::Tuesday));
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fn first() -> Option<Self>

Returns the first value of type Self.

§Example
use enum_iterator::Sequence;

#[derive(Debug, PartialEq, Sequence)]
enum Day { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday }

assert_eq!(Day::first(), Some(Day::Monday));
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fn last() -> Option<Self>

Returns the last value of type Self.

§Example
use enum_iterator::Sequence;

#[derive(Debug, PartialEq, Sequence)]
enum Day { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday }

assert_eq!(Day::last(), Some(Day::Sunday));

Object Safety§

This trait is not object safe.

Implementations on Foreign Types§

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impl Sequence for Ordering

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const CARDINALITY: usize = 3usize

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl Sequence for Infallible

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const CARDINALITY: usize = 0usize

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl Sequence for bool

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const CARDINALITY: usize = 2usize

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl Sequence for i8

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const CARDINALITY: usize = 256usize

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl Sequence for i16

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const CARDINALITY: usize = 65_536usize

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl Sequence for u8

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const CARDINALITY: usize = 256usize

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl Sequence for u16

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const CARDINALITY: usize = 65_536usize

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl Sequence for ()

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const CARDINALITY: usize = 1usize

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0> Sequence for (T0,)
where T0: Sequence,

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const CARDINALITY: usize = <T0 as Sequence>::CARDINALITY

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1> Sequence for (T0, T1)
where T0: Sequence + Clone, T1: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2> Sequence for (T0, T1, T2)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3> Sequence for (T0, T1, T2, T3)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4> Sequence for (T0, T1, T2, T3, T4)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5> Sequence for (T0, T1, T2, T3, T4, T5)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6> Sequence for (T0, T1, T2, T3, T4, T5, T6)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence + Clone, T24: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence + Clone, T24: Sequence + Clone, T25: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence + Clone, T24: Sequence + Clone, T25: Sequence + Clone, T26: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence + Clone, T24: Sequence + Clone, T25: Sequence + Clone, T26: Sequence + Clone, T27: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence + Clone, T24: Sequence + Clone, T25: Sequence + Clone, T26: Sequence + Clone, T27: Sequence + Clone, T28: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence + Clone, T24: Sequence + Clone, T25: Sequence + Clone, T26: Sequence + Clone, T27: Sequence + Clone, T28: Sequence + Clone, T29: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence + Clone, T24: Sequence + Clone, T25: Sequence + Clone, T26: Sequence + Clone, T27: Sequence + Clone, T28: Sequence + Clone, T29: Sequence + Clone, T30: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31> Sequence for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31)
where T0: Sequence + Clone, T1: Sequence + Clone, T2: Sequence + Clone, T3: Sequence + Clone, T4: Sequence + Clone, T5: Sequence + Clone, T6: Sequence + Clone, T7: Sequence + Clone, T8: Sequence + Clone, T9: Sequence + Clone, T10: Sequence + Clone, T11: Sequence + Clone, T12: Sequence + Clone, T13: Sequence + Clone, T14: Sequence + Clone, T15: Sequence + Clone, T16: Sequence + Clone, T17: Sequence + Clone, T18: Sequence + Clone, T19: Sequence + Clone, T20: Sequence + Clone, T21: Sequence + Clone, T22: Sequence + Clone, T23: Sequence + Clone, T24: Sequence + Clone, T25: Sequence + Clone, T26: Sequence + Clone, T27: Sequence + Clone, T28: Sequence + Clone, T29: Sequence + Clone, T30: Sequence + Clone, T31: Sequence,

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T: Sequence> Sequence for Option<T>

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<T: Sequence> Sequence for Poll<T>

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

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impl<const N: usize, T: Sequence + Clone> Sequence for [T; N]

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const CARDINALITY: usize = _

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fn next(&self) -> Option<Self>

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fn previous(&self) -> Option<Self>

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fn first() -> Option<Self>

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fn last() -> Option<Self>

Implementors§