Enum NoSignalReason 

pub enum NoSignalReason {
    Unscoped,
    DetectionNone,
    GitUnavailable,
    GraphSnapshotMissing,
}

Why a source produced no usable change signal — the classified reason a SliceOutcome::NoSignal carries so the brief can render it distinguishably from a genuinely-unchanged source (which stays silent). Every variant is a rendered state; none is dropped silently.

Variants

Unscoped

The facet has no allow patterns — it is unscoped, so no file-tree strategy will diff or enumerate the whole medium. A typed refusal, uniform across git / mtime / refinement. A facet that truly wants the whole medium writes **/*.

DetectionNone

Change detection is declared none — the source is inert by design (super::resolve::ChangeStrategy::None), re-roamed whole with no slice.

GitUnavailable

A git strategy could not read a signal: no work tree over the medium pointer, HEAD unreadable, the stored baseline is unknown (gc’d / rewritten / out-of-repo pathspec), or the diff subprocess failed.

GraphSnapshotMissing

A graph strategy could not read a signal: the source mem has no snapshot token, is unknown to the engine, or its change history could not be fetched against the stored baseline.

Trait Implementations

impl Clone for NoSignalReason

fn clone(&self) -> NoSignalReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NoSignalReason

impl Debug for NoSignalReason

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

Formats the value using the given formatter.

impl Eq for NoSignalReason

impl PartialEq for NoSignalReason

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NoSignalReason