Struct Span 

pub struct Span {
    pub start: usize,
    pub end: usize,
}

A byte span into a source text (0-based, end-exclusive).

Fields

start: usize

First byte of the region.

end: usize

One past the last byte of the region.

Implementations

impl Span

pub fn clamped(start: usize, end: usize, len: usize) -> Self

A span clamped into len (guards against parser spans past a normalized/appended trailing newline).

pub fn len(&self) -> usize

Length in bytes.

pub fn is_empty(&self) -> bool

Whether the span is empty.

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 Copy for Span

impl Debug for Span

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

Formats the value using the given formatter.

impl Eq for Span

impl PartialEq for Span

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Span