Enum TermPosition 

pub enum TermPosition {
    Head,
    Body(usize),
    Fact,
}

Describes where in a rule (or as a standalone fact) a term appears.

Variants

Head

The term appears in the rule head.

Body(usize)

The term appears in the body at the given clause index.

Fact

The term is a standalone fact (not part of a rule).

Trait Implementations

impl Clone for TermPosition

fn clone(&self) -> TermPosition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TermPosition

impl Debug for TermPosition

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

Formats the value using the given formatter.

impl Eq for TermPosition

impl Hash for TermPosition

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 TermPosition

fn eq(&self, other: &TermPosition) -> 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 StructuralPartialEq for TermPosition