Struct autumn::Span

pub struct Span { /* fields omitted */ }

The location of a sequence of characters within a text source

This tracks a span of characters from a text source. It can also be used to present a human-readable location of the range in the source.

Methods

impl Span

pub fn start(&self) -> &Location

Get the start of the span

pub fn end(&self) -> &Location

Get the end of the span

The end itself is not part of the span

pub fn characters(&self) -> usize

Get the number of characters between the start and the end

pub fn bytes(&self) -> usize

Get the number of bytes between the start and the end

pub fn move_start(&mut self, new_start: Location)

Move the start position of a span

pub fn move_end(&mut self, new_end: Location)

Move the end position of a span

pub fn following_span(&self) -> Self

Create a span following the given span

pub fn take(&mut self) -> Self

Take the current span and set this span to the empty span following it

pub fn after(&mut self, next_character: char)

Advance the end of a span by adding a character

pub fn bind<T>(self, object: T) -> Meta<T, Self>

Bind to an object

pub fn substr<'s>(&self, source: &'s str) -> &'s str

Get the substring related to a span

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 Concat for Span

fn empty() -> Self

Create an empty container

fn empty_at(location: Span) -> Self

Create an empty container at a specific location in the source

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

Concatenate the contents of two containers together

impl Copy for Span

impl Debug for Span

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

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

Formats the value using the given formatter.

impl Eq for Span

impl<E, P: Parser<Span, E>, F: Fn(&str) -> bool> Parser<Span, E> for StrCondition<P, F, E>

fn parse<'s>(&self, source: &'s str, location: Span) -> ParseResult<'s, Span, E>

impl<E> Parser<Span, E> for str

fn parse<'s>(&self, source: &'s str, location: Span) -> ParseResult<'s, Span, E>

impl<'_, E> Parser<Span, E> for &'_ str

fn parse<'s>(&self, source: &'s str, location: Span) -> ParseResult<'s, Span, E>

impl<E> Parser<Span, E> for String

fn parse<'s>(&self, source: &'s str, location: Span) -> ParseResult<'s, Span, E>

impl PartialEq<Span> 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: &Span) -> bool

This method tests for !=.

impl StructuralEq for Span

impl StructuralPartialEq for Span