Enum StructureMove 

pub enum StructureMove {
    Birth {
        candidate: usize,
    },
    Death {
        atom: usize,
    },
    Fission {
        atom: usize,
    },
    Fusion {
        a: usize,
        b: usize,
    },
    Glue {
        a: usize,
        b: usize,
        outcome: ChartGlueOutcome,
    },
}

One proposed structural move. Atom indices are STABLE IDENTIFIERS for the duration of one search round: the caller’s apply_move must not reindex surviving atoms (mark dead atoms inactive, append born atoms) — the engine relies on this to detect conflicting proposals.

Variants

Birth

Add a new atom. candidate indexes the caller’s proposal list (e.g. scaffold clusters on first build; whitened residual-factor directions thereafter — see #974’s rescope: proposals must come from the WHITENED residual subspace, raw-Euclidean Λ skews loud-but-inert).

Fields

candidate: usize

Death

Demote an atom whose existence was never certified (ARD precision diverged). Never applies to a certified atom.

Fields

atom: usize

Fission

Split an atom along detected substructure (within-atom audit / #975 vanished-interaction carve).

Fields

atom: usize

Fusion

Merge two atoms into one joint structure (dependent codes + joint interaction evidence — #975’s binding, in reverse).

Fields

a: usize

b: usize

Glue

Glue two CHARTS of one manifold into one atom (#1890). Distinct from StructureMove::Fusion: the co-activation fusion lane fires on DEPENDENT (co-firing) codes, but atoms over-tiling a single manifold have DISJOINT supports (each owns its own arc/patch) and therefore anti-correlated codes — invisible to fusion. The glue lane proposes such a pair on a GEOMETRIC pre-screen (decoder-frame principal angles × latent- support adjacency) and its acceptance is an EQUIVALENCE e-value on the seam (the two decoded charts coincide within an isometry tolerance, against the churn null) — a pre-computed e-value carried on the proposal’s trigger, not the held-out fit-improvement gate the other moves use (a clean glue leaves EV tied, so a likelihood-ratio gate could never accept it). ChartGlueOutcome::Fuse folds an ordinary over-tile; ChartGlueOutcome::RegisterAtlas preserves a seam whose local charts cannot be replaced by one global chart (orientation reversal / pole).

Fields

a: usize

b: usize

outcome: ChartGlueOutcome

Trait Implementations

impl Clone for StructureMove

fn clone(&self) -> StructureMove

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StructureMove

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StructureMove

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for StructureMove

impl PartialEq for StructureMove

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for StructureMove

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for StructureMove