Enum AttributeFate

pub enum AttributeFate {
    Preserved,
    Interpolated,
    Dropped(DropReason),
}

What happened to a channel during an operation.

Reported rather than rejected, matching how BooleanEvidence treats a no-op cut: the caller is told, and decides whether it matters.

Variants

Preserved

Every vertex kept its original value.

Interpolated

New vertices received values derived under the channel’s blend rule.

Dropped(DropReason)

The channel was not carried through, with the reason why.

Implementations

impl AttributeFate

pub fn then(self, next: AttributeFate) -> AttributeFate

The fate of a channel that went through self, then next.

For composed operations (batches, symmetric difference): once dropped always dropped, and the FIRST reason is kept – it is the step that lost the data. Otherwise any interpolation makes the whole interpolated; only preserved-then-preserved stays preserved.

Trait Implementations

impl Clone for AttributeFate

fn clone(&self) -> AttributeFate

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AttributeFate

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

Formats the value using the given formatter.

impl PartialEq for AttributeFate

fn eq(&self, other: &AttributeFate) -> 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 Eq for AttributeFate

impl StructuralPartialEq for AttributeFate