Struct PositionalSlice

pub struct PositionalSlice {
    pub offset: usize,
    pub length: usize,
}

A slice representation of offset and length.

Fields

offset: usize

The slice offset in the source sequence.

length: usize

The length of the slice.

Implementations

impl PositionalSlice

pub fn empty() -> Self

Creates an empty instance.

pub fn new(off: usize, len: usize) -> Self

Creates an instance with the given offset and length.

Parameters:

• off - The offset of the slice;
• len - The length of the slice;

impl PositionalSlice

pub fn is_empty(&self) -> bool

Indicates whether the slice is empty.

pub fn len(&self) -> usize

Indicates the length of the slice.

pub fn offset_unchecked(&self, d: isize) -> Self

Obtains unchecked a copy of the slice moved by the given delta.

Parameters:

• d - The delta;

Return:

New instance of PositionalSlice adjusted appropriately.

Preconditions:

• isize <= self.offset - will panic (in debug) if false

pub fn offset_checked(&self, d: isize) -> Option<Self>

Obtains checked a copy of the slice moved by the given delta.

Parameters:

• d - The delta;

Return:

Option<PositionalSlice>, where, if Some, it contains appropriately adjusted slice.

pub fn subslice_of<'a, T>(&self, slice: &'a [T]) -> &'a [T]

Applies this positional slice to a slice of arbitrary type, obtaining a relative slice as a result.

Parameters:

• slice - The slice of which to provide a subslice;

Return:

An instance of a slice of slice according to the offset and length of the receiving instance.

pub fn substring_of<'a>(&self, slice: &'a str) -> &'a str

Applies this positional slice to a slice of 'str, obtaining a relative slice as a result.

Parameters:

• slice - The slice of which to provide a subslice;

Return:

An instance of a slice of slice according to the offset and length of the receiving instance.

Trait Implementations

impl Clone for PositionalSlice

fn clone(&self) -> PositionalSlice

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PositionalSlice

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

Formats the value using the given formatter.

impl PartialEq for PositionalSlice

fn eq(&self, other: &Self) -> 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 PartialOrd for PositionalSlice

fn partial_cmp(&self, other: &Self) -> 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 Copy for PositionalSlice

impl Eq for PositionalSlice