Struct Span

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

Span represents the position information of a single AST item.

All span positions are absolute byte offsets that can be used on the original regular expression that was parsed.

Fields

start: Position

The start byte offset.

end: Position

The end byte offset.

Implementations

impl Span

pub fn new(start: Position, end: Position) -> Span

Create a new span with the given positions.

pub fn splat(pos: Position) -> Span

Create a new span using the given position as the start and end.

pub fn with_start(self, pos: Position) -> Span

Create a new span by replacing the starting the position with the one given.

pub fn with_end(self, pos: Position) -> Span

Create a new span by replacing the ending the position with the one given.

pub fn is_one_line(&self) -> bool

Returns true if and only if this span occurs on a single line.

pub fn is_empty(&self) -> bool

Returns true if and only if this span is empty. That is, it points to a single position in the concrete syntax of a regular expression.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a copy 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 Ord for Span

fn cmp(&self, other: &Span) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

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 PartialOrd for Span

fn partial_cmp(&self, other: &Span) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Span

impl Eq for Span

impl StructuralPartialEq for Span

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 48 bytes