Struct Atom 

pub struct Atom<'a> {
    pub subject: &'a str,
    pub predicate: &'a str,
    pub object: Option<&'a str>,
}

An atom is the triple (subject, predicate, object?) — the unit of identity. Creature.A has flying and Creature.A has swimming are DIFFERENT atoms.

Fields

subject: &'a str

The entity the claim is about, e.g. Creature.A or Motor.

predicate: &'a str

The relation or property asserted, e.g. has or over_100.

object: Option<&'a str>

Optional value the predicate relates the subject to, e.g. flying. None for two-word atoms such as Motor over_100. The object is part of identity: has flying and has swimming are different atoms.

Trait Implementations

impl<'a> Clone for Atom<'a>

fn clone(&self) -> Atom<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Atom<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for Atom<'a>

impl<'a> PartialEq for Atom<'a>

fn eq(&self, other: &Atom<'a>) -> 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<'a> StructuralPartialEq for Atom<'a>