Enum Enforcement 

pub enum Enforcement {
    Enforced,
    Mediated,
    Unsupported,
}

The enforcement-strength axis of a support verdict.

One of two ORTHOGONAL axes (the other is EvidenceSet): this grades how strongly a requirement is held; the evidence set grades what can be witnessed about it. The two never collapse — a backend may enforce strongly yet witness little (a structural guarantee with nothing per-attempt to see).

Variants

Enforced

The backend can guarantee the requirement (strong primitive present).

Mediated

The backend can honor the requirement only by mediating each attempt (e.g. a broker / notifier), not by a structural guarantee.

Unsupported

The backend cannot honor the requirement at all on this machine. Only ever a backend ANSWER; never a requested value. Forces plan() closed.

Implementations

impl Enforcement

pub fn meet(self, other: Self) -> Self

The MEET of the enforcement lattice in the SECURITY order (Enforced strongest, Unsupported the fail-closed bottom). Unsupported on either side wins (absorbing); this is the algebra the admission matrix floors a family best-case by a machine ceiling with. (Note: the derived Ord runs the other way — declaration order — so this meet equals the Ord MAX.)

Trait Implementations

impl Clone for Enforcement

fn clone(&self) -> Enforcement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Enforcement

impl Debug for Enforcement

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Enforcement

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Enforcement

impl Hash for Enforcement

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 Ord for Enforcement

fn cmp(&self, other: &Enforcement) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Enforcement

fn eq(&self, other: &Enforcement) -> 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 PartialOrd for Enforcement

fn partial_cmp(&self, other: &Enforcement) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Enforcement

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 Enforcement