Struct Span

pub struct Span {
    pub source: Source,
    pub begin: usize,
    pub end: usize,
}

A span of locations within a source file, expressed as a half-open interval of bytes [begin,end).

Fields

source: Source

begin: usize

end: usize

Implementations

impl Span

pub fn new(source: Source, begin: usize, end: usize) -> Span

Create a new span from two byte offsets.

pub fn union<S: Into<Span>>(a: S, b: S) -> Span

Create a new span that covers two spans, i.e. represents the smallest possible span that fully contains both input spans a and b.

pub fn expand<S: Into<Span>>(&mut self, other: S) -> &mut Self

Modify this range to also cover the entirety of the other range. The other range must lie in the same source as self.

pub fn begin(&self) -> Location

Return the location just before the first character in this span.

pub fn end(&self) -> Location

Return the location just after the last character in this span.

pub fn extract(&self) -> String

Copy the portion of the source file in this span into an owned string.

pub fn iter<'a>(self, content: &'a Rc<dyn SourceContent>) -> Box<CharIter<'a>>

Obtain an iterator over the extract of the source file describe by this span.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a duplicate 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<Location> for Span

fn from(l: Location) -> Span

Converts to this type from the input type.

impl Hash for Span

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

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