Struct Span

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

A byte-index tuple representing a span of characters in a string

Fields

start: usize

end: usize

Implementations

impl Span

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

pub fn relative_span(&self, dockerfile: &Dockerfile) -> (usize, Span)

Determines the 0-indexed line number and line-relative position of this span.

A reference to the Dockerfile is necessary to examine the original input string. Note that if the original span crosses a newline boundary, the relative span’s end field will be larger than the line length.

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 From<&Pair<'_, Rule>> for Span

fn from(pair: &Pair<'_, Rule>) -> Self

Converts to this type from the input type.

impl From<(usize, usize)> for Span

fn from(tup: (usize, usize)) -> Span

Converts to this type from the input type.

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