Struct Span 

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

A half-open span [start, end) within the input stream, stored as byte offsets.

Use LineIndex (available from crate::node::Document::line_index) to convert offsets to (line, column) pairs on demand.

Fields

start: u32

Inclusive start byte offset of the span.

end: u32

Exclusive end byte offset of the span.

Implementations

impl Span

pub fn start_line_column(&self, index: &LineIndex) -> (u32, u32)

Return (line, column) for the start of this span.

Line is 1-based; column is 0-based codepoint count from line start.

pub fn end_line_column(&self, index: &LineIndex) -> (u32, u32)

Return (line, column) for the end of this span.

Line is 1-based; column is 0-based codepoint count from line start.

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 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