Enum Anchor 

pub(crate) enum Anchor<L> {
    Before(Uuid),
    After(Uuid),
    Start(L),
    End(L),
}

Where an op puts items: next to a sibling, or at the start or end of a list L.

Variants

Before(Uuid)

After(Uuid)

Start(L)

End(L)

Implementations

impl<L: Copy> Anchor<L>

pub(crate) fn target_id( self, owner: impl FnOnce(L) -> Option<Uuid>, ) -> Option<Uuid>

The sibling, or the list’s owner as owner gives it, which a move mustn’t take along.

pub(crate) fn insertion_point<P>( self, sibling: impl FnOnce(Uuid) -> Result<(P, usize), EditError>, list_len: impl FnOnce(L) -> Result<(P, usize), EditError>, ) -> Result<(P, usize), EditError>

The list P to insert into and the index there. sibling gives a sibling’s list and index, list_len a list and its length.

Trait Implementations

impl<L: Clone> Clone for Anchor<L>

fn clone(&self) -> Anchor<L>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<L: Debug> Debug for Anchor<L>

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

Formats the value using the given formatter.

impl<L: Copy> Copy for Anchor<L>