Struct Region

pub struct Region {
    pub start: Loc,
    pub end: Loc,
}

The location enclosed by a region begins at start and ends exclusively at end. It is required that both locations come from the same source and that end monotonically proceeds start (so start and end can compare equal). This invariant is enforced when constructing through Region::new.

Fields

start: Loc

An inclusive lower bound (see Loc::partial_cmp) on the region enclosed.

end: Loc

An exclusive upper bound (see Loc::partial_cmp) on the region enclosed.

Implementations

impl Region

pub fn new(start: Loc, end: Loc) -> Region

A region from start up to (but not including) end.

pub fn unit(start: Loc) -> Region

A region at start of length 1.

Requires: the start.line contains at least one more character after start.col.

pub fn source(&self) -> Rc<Source>

The source where this region occurs.

pub fn start_line(&self) -> isize

pub fn end_line(&self) -> isize

pub fn find_intersection( &self, lines: &[String], start_line: isize, ) -> Vec<LineSection>

Given a set of complete lines from the same source as source() and the line number of the first line in lines, start_line, this function computes the intersection of this region and the given lines. If the output vector is non-empty, the first entry in the output vector corresponds to the first line of this region, which is not necessarily the first line in lines. See LineSection.

Trait Implementations

impl Clone for Region

fn clone(&self) -> Region

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Region

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

Formats the value using the given formatter.

impl Default for Region

fn default() -> Region

Returns the “default value” for a type.

impl Display for Region

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

Formats the value using the given formatter.

impl PartialEq for Region

fn eq(&self, other: &Region) -> 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 RegionProvider for Region

fn start(&self) -> Loc

The starting location of this region.

fn end(&self) -> Loc

Must be in the same source and monotonically after RegionProvider::start. See Region for details.

fn region(&self) -> Region

The region of this object.

impl Eq for Region

impl StructuralPartialEq for Region