Struct vector_config::indexmap::set::Slice

pub struct Slice<T> { /* private fields */ }

A dynamically-sized slice of values in an IndexSet.

This supports indexed operations much like a [T] slice, but not any hashed operations on the values.

Unlike IndexSet, Slice does consider the order for PartialEq and Eq, and it also implements PartialOrd, Ord, and Hash.

Implementations

impl<T> Slice<T>

pub const fn new<'a>() -> &'a Slice<T>

Returns an empty slice.

pub const fn len(&self) -> usize

Return the number of elements in the set slice.

pub const fn is_empty(&self) -> bool

Returns true if the set slice contains no elements.

pub fn get_index(&self, index: usize) -> Option<&T>

Get a value by index.

Valid indices are 0 <= index < self.len().

pub fn get_range<R>(&self, range: R) -> Option<&Slice<T>>

where R: RangeBounds<usize>,

Returns a slice of values in the given range of indices.

Valid indices are 0 <= index < self.len().

pub fn first(&self) -> Option<&T>

Get the first value.

pub fn last(&self) -> Option<&T>

Get the last value.

pub fn split_at(&self, index: usize) -> (&Slice<T>, &Slice<T>)

Divides one slice into two at an index.

Panics if index > len.

pub fn split_first(&self) -> Option<(&T, &Slice<T>)>

Returns the first value and the rest of the slice, or None if it is empty.

pub fn split_last(&self) -> Option<(&T, &Slice<T>)>

Returns the last value and the rest of the slice, or None if it is empty.

pub fn iter(&self) -> Iter<'_, T>

Return an iterator over the values of the set slice.

pub fn binary_search(&self, x: &T) -> Result<usize, usize>

where T: Ord,

Search over a sorted set for a value.

Returns the position where that value is present, or the position where it can be inserted to maintain the sort. See slice::binary_search for more details.

Computes in O(log(n)) time, which is notably less scalable than looking the value up in the set this is a slice from using IndexSet::get_index_of, but this can also position missing values.

pub fn binary_search_by<'a, F>(&'a self, f: F) -> Result<usize, usize>

where F: FnMut(&'a T) -> Ordering,

Search over a sorted set with a comparator function.

Returns the position where that value is present, or the position where it can be inserted to maintain the sort. See slice::binary_search_by for more details.

Computes in O(log(n)) time.

pub fn binary_search_by_key<'a, B, F>( &'a self, b: &B, f: F, ) -> Result<usize, usize>

where F: FnMut(&'a T) -> B, B: Ord,

Search over a sorted set with an extraction function.

Returns the position where that value is present, or the position where it can be inserted to maintain the sort. See slice::binary_search_by_key for more details.

Computes in O(log(n)) time.

pub fn partition_point<P>(&self, pred: P) -> usize

where P: FnMut(&T) -> bool,

Returns the index of the partition point of a sorted set according to the given predicate (the index of the first element of the second partition).

See slice::partition_point for more details.

Computes in O(log(n)) time.

Trait Implementations

impl<T> Clone for Box<Slice<T>>

where T: Clone,

fn clone(&self) -> Box<Slice<T>>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for Slice<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<T> Default for &Slice<T>

fn default() -> &Slice<T>

Returns the “default value” for a type.

impl<T> Default for Box<Slice<T>>

fn default() -> Box<Slice<T>>

Returns the “default value” for a type.

impl<T> From<&Slice<T>> for Box<Slice<T>>

where T: Copy,

fn from(slice: &Slice<T>) -> Box<Slice<T>>

Converts to this type from the input type.

impl<T> Hash for Slice<T>

where T: Hash,

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

impl<T> Index<(Bound<usize>, Bound<usize>)> for Slice<T>

type Output = Slice<T>

The returned type after indexing.

fn index( &self, range: (Bound<usize>, Bound<usize>), ) -> &<Slice<T> as Index<(Bound<usize>, Bound<usize>)>>::Output

Performs the indexing (container[index]) operation.

impl<T> Index<Range<usize>> for Slice<T>

type Output = Slice<T>

The returned type after indexing.

fn index( &self, range: Range<usize>, ) -> &<Slice<T> as Index<Range<usize>>>::Output

Performs the indexing (container[index]) operation.

impl<T> Index<RangeFrom<usize>> for Slice<T>

type Output = Slice<T>

The returned type after indexing.

fn index( &self, range: RangeFrom<usize>, ) -> &<Slice<T> as Index<RangeFrom<usize>>>::Output

Performs the indexing (container[index]) operation.

impl<T> Index<RangeFull> for Slice<T>

type Output = Slice<T>

The returned type after indexing.

fn index(&self, range: RangeFull) -> &<Slice<T> as Index<RangeFull>>::Output

Performs the indexing (container[index]) operation.

impl<T> Index<RangeInclusive<usize>> for Slice<T>

type Output = Slice<T>

The returned type after indexing.

fn index( &self, range: RangeInclusive<usize>, ) -> &<Slice<T> as Index<RangeInclusive<usize>>>::Output

Performs the indexing (container[index]) operation.

impl<T> Index<RangeTo<usize>> for Slice<T>

type Output = Slice<T>

The returned type after indexing.

fn index( &self, range: RangeTo<usize>, ) -> &<Slice<T> as Index<RangeTo<usize>>>::Output

Performs the indexing (container[index]) operation.

impl<T> Index<RangeToInclusive<usize>> for Slice<T>

type Output = Slice<T>

The returned type after indexing.

fn index( &self, range: RangeToInclusive<usize>, ) -> &<Slice<T> as Index<RangeToInclusive<usize>>>::Output

Performs the indexing (container[index]) operation.

impl<T> Index<usize> for Slice<T>

type Output = T

The returned type after indexing.

fn index(&self, index: usize) -> &<Slice<T> as Index<usize>>::Output

Performs the indexing (container[index]) operation.

impl<'a, T> IntoIterator for &'a Slice<T>

type IntoIter = Iter<'a, T>

Which kind of iterator are we turning this into?

type Item = &'a T

The type of the elements being iterated over.

fn into_iter(self) -> <&'a Slice<T> as IntoIterator>::IntoIter

Creates an iterator from a value.

impl<T> IntoIterator for Box<Slice<T>>

type IntoIter = IntoIter<T>

Which kind of iterator are we turning this into?

type Item = T

The type of the elements being iterated over.

fn into_iter(self) -> <Box<Slice<T>> as IntoIterator>::IntoIter

Creates an iterator from a value.

impl<T> Ord for Slice<T>

where T: Ord,

fn cmp(&self, other: &Slice<T>) -> Ordering

This method returns an Ordering between self and other.

impl<T> PartialEq for Slice<T>

where T: PartialEq,

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

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> PartialOrd for Slice<T>

where T: PartialOrd,

fn partial_cmp(&self, other: &Slice<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T> Serialize for Slice<T>

where T: Serialize,

Serializes a set::Slice as an ordered sequence.

fn serialize<Se>( &self, serializer: Se, ) -> Result<<Se as Serializer>::Ok, <Se as Serializer>::Error>

where Se: Serializer,

Serialize this value into the given Serde serializer.

impl<T> Eq for Slice<T>

where T: Eq,