Struct Atom8 

pub struct Atom8 {
    pub pred_id: PredicateId,
    pub arity: u8,
    pub binding_mask: u8,
    pub args: [TermId; 8],
}

Atom8 — a predicate application with up to 8 arguments. ARD section 4.3.

Fields

pred_id: PredicateId

Predicate identifier (must exist in catalog).

arity: u8

Number of significant arguments. Must be ≤ ARITY_CAP.

binding_mask: u8

Bit i set means argument i is bound (input). Bits ≥ arity must be 0.

args: [TermId; 8]

Argument slots. Slots ≥ arity must equal TERM_SENTINEL.

Implementations

impl Atom8

pub fn new(pred_id: PredicateId, arity: u8, args: &[TermId]) -> Self

Construct an Atom8 from arity and slice of args, zero-padding the rest. Returns the atom even if it would fail admission — callers should run admission separately for kernel safety.

pub fn with_binding(self, binding_mask: u8) -> Self

Set the binding mask. Caller must ensure mask bits ≥ arity are 0.

pub fn is_bound(&self, i: u8) -> bool

True if argument position i (0-indexed) is bound.

pub fn live_args(&self) -> impl Iterator<Item = &TermId>

Iterator over the live (in-arity) argument terms.

Trait Implementations

impl Clone for Atom8

fn clone(&self) -> Atom8

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Atom8

impl Debug for Atom8

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Atom8

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Atom8

impl Hash for Atom8

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Atom8

fn eq(&self, other: &Atom8) -> bool

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Atom8

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 Atom8