Struct Selection 

pub struct Selection {
    pub anchor: u64,
    pub focus: u64,
}

Where a selection was begun and where it was carried to, as byte offsets of one version; collapsed when the two are the same offset.

Fields

anchor: u64

focus: u64

Implementations

impl Selection

pub const fn collapsed(at: u64) -> Selection

A caret at at.

pub fn span(self) -> Span

The bytes the selection covers, whichever way it was drawn.

pub fn mapped(self, transaction: &Transaction) -> Selection

Where this selection stands in the version transaction makes.

An offset before an edit stays put, an insertion at the offset itself included; one after it moves by what the edit added and removed; one inside a replaced span moves to the end of what replaced it, because the bytes it pointed into are gone.

Trait Implementations

impl Clone for Selection

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Selection

impl Debug for Selection

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

Formats the value using the given formatter.

impl Eq for Selection

impl PartialEq for Selection

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Selection