Struct pomsky::Span

pub struct Span { /* private fields */ }

A source code location, marked by the start and end byte offset. If both are zero, this is considered as “empty” or “missing”, and Span::range returns None.

Implementations

impl Span

pub fn new(start: usize, end: usize) -> Span

Constructs a new Span. If both start and end is 0, this is considered as “empty” or “missing”

pub fn empty() -> Span

Constructs an empty Span.

pub fn is_empty(&self) -> bool

Returns whether this span is “empty” or “missing”.

pub fn range(self) -> Option<Range<usize>>

Converts this span to a std::ops::Range. If it is empty, None is returned.

pub fn range_unchecked(self) -> Range<usize>

Converts this span to a std::ops::Range, without checking if it is empty.

pub fn start(&self) -> Span

Returns a new span that points to this span’s start, but has a length of 0.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Span

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

Formats the value using the given formatter.

impl Default for Span

fn default() -> Span

Returns the “default value” for a type.

impl Display for Span

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

Formats the value using the given formatter.

impl From<Range<usize>> for Span

fn from(_: Range<usize>) -> Span

Converts to this type from the input type.

impl PartialEq for Span

fn eq(&self, other: &Span) -> 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 Copy for Span

impl Eq for Span

impl StructuralEq for Span

impl StructuralPartialEq for Span