Struct Span

pub struct Span { /* private fields */ }

A source span in a path. Can be used to reference the source location of tokens or syntax structures.

Implementations

impl Span

pub fn get_span(self, source: &str) -> &str

Get the string slice of this span on the source string. Note the provided string must be the whole source string for this method to be meaningful.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a duplicate 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

Formats the value using the given formatter.

impl From<Range<usize>> for Span

fn from(span: Range<usize>) -> Self

Converts to this type from the input type.

impl PartialEq for Span

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

type Context = ()

Extra context used in a span.

type Offset = usize

A type representing a span’s start or end offset from the start of the input.

fn new(_context: Self::Context, range: Range<Self::Offset>) -> Self

Create a new span given a context and an offset range.

fn context(&self) -> Self::Context

Return the span’s context.

fn start(&self) -> Self::Offset

Return the start offset of the span.

fn end(&self) -> Self::Offset

Return the end offset of the span.

impl Copy for Span

impl StructuralPartialEq for Span