Struct Shown 

pub struct Shown(/* private fields */);

Where atoms — ranges of a source text painted as something else — line up between that text and the text painted for it, in document order, as (source, shown) pairs.

An offset inside an atom’s source has no place in what it shows, and one inside what it shows has none in the source: each lands on an end.

Implementations

impl Shown

pub fn new(pairs: Vec<(Range<usize>, Range<usize>)>) -> Self

pairs must be in document order and must not overlap.

pub fn at(&self, offset: usize) -> usize

Where a source offset shows. One inside an atom lands on its start.

pub fn range(&self, range: &Range<usize>) -> Range<usize>

Where a source range shows. An end inside an atom takes all of it.

pub fn offset(&self, shown: usize) -> usize

The source offset of a shown one. One inside an atom lands on the nearer end.

Trait Implementations

impl Clone for Shown

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Shown

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

Formats the value using the given formatter.

impl Default for Shown

fn default() -> Self

Returns the “default value” for a type.