Struct PositionTracker

pub struct PositionTracker<'a> { /* private fields */ }

Tracks current position in source text with line/column information

Implementations

impl<'a> PositionTracker<'a>

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

Create a new position tracker for source text

pub const fn new_at( source: &'a str, offset: usize, line: u32, column: u32, ) -> Self

Create a tracker starting at a specific position

pub const fn offset(&self) -> usize

Get current byte offset

pub const fn line(&self) -> u32

Get current line number (1-based)

pub const fn column(&self) -> u32

Get current column number (1-based)

pub fn advance(&mut self, bytes: usize)

Advance position by a given number of bytes

pub fn advance_to(&mut self, target_offset: usize)

Advance to a specific byte offset

pub fn skip_whitespace(&mut self)

Skip whitespace and update position

pub fn skip_line(&mut self)

Skip to end of current line

pub fn remaining(&self) -> &'a str

Get remaining source text from current position

pub const fn is_at_end(&self) -> bool

Check if at end of source

pub const fn span_from(&self, start: &PositionTracker<'_>) -> Span

Create a span from a start position to current position

pub const fn span_for(&self, length: usize) -> Span

Create a span for a range of bytes from current position

pub const fn checkpoint(&self) -> Self

Clone current position state

Trait Implementations

impl<'a> Clone for PositionTracker<'a>

fn clone(&self) -> PositionTracker<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for PositionTracker<'a>

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

Formats the value using the given formatter.