Struct Universal 

pub struct Universal<'a> {
    pub deployment: DeploymentAttributes<'a>,
    pub now: OffsetDateTime,
}

Facts that do not belong to the account or the write, but that a stateless predicate is still allowed to reference — grouped into one field per Subject variant rather than left flat, since the field list otherwise grows by one every time a new universal fact is added.

Why now lives here instead of an evaluator calling a clock

Time is an input, never an ambient read: nothing in this crate lets an evaluator call SystemTime::now() or its equivalent, for the same reason evaluate takes no store handle — a capability not reachable from the arguments cannot be reached at all. Passing now explicitly instead means:

• An evaluator implementing a time-shaped rule stays a pure function of its inputs, testable by constructing a Subject with the instant a test wants, never by sleeping or mocking a global clock.
• The instant a decision used is exactly what was passed in, so the write path can record it in the evaluation log. plan/policy.md already says decisions are not reproducible and the log records the decision rather than re-deriving it; a time-dependent rule is a second, independent reason that holds, and the recorded instant is what makes such a decision explicable later.

Fields

deployment: DeploymentAttributes<'a>

Facts about this deployment. See DeploymentAttributes.

now: OffsetDateTime

The instant this subject is being evaluated at, supplied by the caller rather than read from a clock inside an evaluator.

Trait Implementations

impl<'a> Clone for Universal<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Universal<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for Universal<'a>

fn eq(&self, other: &Universal<'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> Copy for Universal<'a>

impl<'a> Eq for Universal<'a>

impl<'a> StructuralPartialEq for Universal<'a>