Struct Span 

pub struct Span { /* private fields */ }

Represents a contiguous segment of source code.

start and end are byte offsets into the source code, while line and column represent the human-readable position of the span.

This structure can be used for highlighting errors, diagnostics, or feeding external crates like ariadne.

Example

use rhai_trace::Span;

let span = Span::new(10, 20, 2, 5);
println!("Span covers bytes {}..{} on line {}", span.start(), span.end(), span.line());

Implementations

impl Span

pub fn new(start: usize, end: usize, line: usize, column: usize) -> Self

Creates a new Span from byte offsets, line, and column.

pub fn start(&self) -> usize

Returns the starting byte offset of this span.

pub fn end(&self) -> usize

Returns the starting byte offset of this span.

pub fn line(&self) -> usize

Returns the line number (1-based) of this span.

pub fn column(&self) -> usize

Returns the column number (1-based) of this span.

pub fn from_pos(script: &str, pos: &Position) -> Self

Creates a Span from a Rhai Position and the script text. Computes byte offsets based on line and column.

pub fn from_rhai_start_end_pos( script: &str, start: &Position, end: &Position, ) -> Self

Creates a Span from Rhai start and end Positions.

pub fn from_rhai_span(script: &str, rhai_span: Span, pos: &Position) -> Self

Converts a Rhai Span to our Span type using a reference Position.

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.