Struct Range

pub struct Range<'a, T: 'a> { /* private fields */ }

Immutable sub-range of GapBuffer

This struct is created by Slice::range.

Implementations

impl<'a, T: 'a> Range<'a, T>

pub fn empty() -> Self

Construct a new, empty Range.

pub fn get(&self, index: usize) -> Option<&'a T>

Returns a reference to an element at index or None if out of bounds.

Unlike Slice::get, return value not borrow self.

pub fn range(&self, range: impl RangeBounds<usize>) -> Range<'a, T>

Return a immutable sub-range of this Slice.

Unlike Slice::range, return value not borrow self.

pub fn as_slices(&self) -> (&'a [T], &'a [T])

Returns a pair of slices. First slice is before gap. Second slice is after gap.

Unlike Slice::as_slices, return value not borrow self.

Methods from Deref<Target = Slice<T>>

pub fn len(&self) -> usize

Returns the number of elements in the GapBuffer.

pub fn is_empty(&self) -> bool

Returns true if the GapBuffer contains no elements.

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

Returns a reference to an element at index or None if out of bounds.

pub fn range(&self, range: impl RangeBounds<usize>) -> Range<'_, T>

Return a immutable sub-range of this Slice.

Panics

Panics if range is out of bounds.

Examples

use gapbuf::gap_buffer;

let buf = gap_buffer![1, 2, 3, 4, 5];

let r1 = buf.range(1..);
assert_eq!(r1, [2, 3, 4, 5]);

let r2 = r1.range(1..3);
assert_eq!(r2, [3, 4]);

pub fn as_slices(&self) -> (&[T], &[T])

Returns a pair of slices. First slice is before gap. Second slice is after gap.

Examples

use gapbuf::gap_buffer;

let mut buf = gap_buffer![1, 2, 3, 4, 5];
buf.set_gap(2);
let (s1, s2) = buf.as_slices();
assert_eq!(s1, [1, 2]);
assert_eq!(s2, [3, 4, 5]);

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

Returns an iterator over the Slice.

Trait Implementations

impl<'a, T> Clone for Range<'a, T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, T> Debug for Range<'a, T>

where T: Debug,

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

Formats the value using the given formatter.

impl<'a, T> Default for Range<'a, T>

fn default() -> Self

Returns the “default value” for a type.

impl<'a, T> Deref for Range<'a, T>

type Target = Slice<T>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, T: Hash + 'a> Hash for Range<'a, T>

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a, T> Index<usize> for Range<'a, T>

type Output = T

The returned type after indexing.

fn index(&self, index: usize) -> &T

Performs the indexing (container[index]) operation.

impl<'a, 'b, T> IntoIterator for &'a Range<'b, T>

type Item = &'a T

The type of the elements being iterated over.

type IntoIter = Chain<Iter<'a, T>, Iter<'a, T>>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Iter<'a, T>

Creates an iterator from a value.

impl<'a, T: Ord> Ord for Range<'a, T>

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'a, T, S> PartialEq<S> for Range<'a, T>

where T: PartialEq, S: ?Sized, for<'b> &'b S: IntoIterator<Item = &'b T>,

fn eq(&self, other: &S) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<'a, T, S> PartialOrd<S> for Range<'a, T>

where T: PartialOrd, S: ?Sized, for<'b> &'b S: IntoIterator<Item = &'b T>,

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a, T: Eq> Eq for Range<'a, T>