Struct LineMap 

pub struct LineMap { /* private fields */ }

Cached line start byte offsets for a source string.

line_starts[i] is the byte offset of the start of line i (0-indexed for LSP). Always begins with 0.

Implementations

impl LineMap

pub fn new(source: &str) -> Self

pub fn line_count(&self) -> u32

Number of lines (always at least 1).

pub fn line_for_byte(&self, byte: u32) -> u32

Get the 0-based line index containing byte.

pub fn line_start(&self, line: u32) -> u32

Byte offset where the given 0-based line starts. Returns source_len if line is past the end.

pub fn line_end(&self, source: &str, line: u32) -> u32

Byte offset just after the last character of the given 0-based line, excluding the trailing newline (if any).

Trait Implementations

impl Clone for LineMap

fn clone(&self) -> LineMap

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LineMap

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

Formats the value using the given formatter.