Struct Position 

pub struct Position {
    pub line: usize,
    pub column: usize,
    pub offset: usize,
}

Source positions, spans, and text range utilities. A position in source code.

Fields

line: usize

1-based line number

column: usize

1-based column number (byte offset within line)

offset: usize

0-based byte offset from start of input

Implementations

impl Position

pub fn new() -> Self

Create a new position at line 1, column 1, offset 0.

pub fn advance(&mut self, ch: char)

Advance position by one character.

pub fn advanced_by(self, text: &str) -> Self

Return a new position advanced by every character in text.

pub fn rebased(self, base: Position) -> Self

Rebase a position from a nested source onto an absolute base position.

Trait Implementations

impl Clone for Position

fn clone(&self) -> Position

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Position

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

Formats the value using the given formatter.

impl Default for Position

fn default() -> Position

Returns the “default value” for a type.

impl Display for Position

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

Formats the value using the given formatter.

impl PartialEq for Position

fn eq(&self, other: &Position) -> 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 Position

impl Eq for Position

impl StructuralPartialEq for Position