Struct Span 

pub struct Span {
    pub start: u32,
    pub end: u32,
}

A byte range into the query text.

Half open, so start is the first byte and end is one past the last, which is what slicing wants and what every editor protocol in existence expects. Byte offsets rather than character offsets because that is what the parser has and converting is the caller’s problem, once, at the point where a human is going to read it.

Fields

start: u32

First byte of the span.

end: u32

One past the last byte of the span.

Implementations

impl Span

pub const fn new(start: u32, end: u32) -> Self

A span over start .. end.

pub const fn len(self) -> u32

The number of bytes covered, which is zero for a span that points between two characters.

pub const fn is_empty(self) -> bool

Whether the span covers no bytes.

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 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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Span