Struct Span

#[non_exhaustive]
pub struct Span {
    pub offset: u32,
    pub len: u32,
}

A location in the source passed to the lexer.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

offset: u32

Offset in bytes.

len: u32

The amount of bytes this location encompasses.

Implementations

impl Span

pub const fn empty() -> Self

Create a new empty span.

pub fn is_empty(&self) -> bool

pub fn covers(self, other: Span) -> Span

Create a span that covers the range of both spans as well as possible space inbetween.

pub fn after(self) -> Span

pub fn after_offset(self) -> u32

pub fn is_followed_by(&self, other: &Self) -> bool

Returns if the given span is the next span after this one.

pub fn follows_from(&self, other: &Self) -> bool

Returns if this span immediately follows the given.

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

Formats the value using the given formatter.

impl Hash for Span

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

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 Copy for Span

impl Eq for Span

impl StructuralPartialEq for Span