Enum ReasonCode 

pub enum ReasonCode {
    Admissible,
    BoundaryApproach,
    SustainedOutwardDrift,
    AbruptSlewViolation,
    RecurrentBoundaryGrazing,
    EnvelopeViolation,
    DriftWithRecovery,
    SingleCrossing,
}

Grammar reason codes — Paper §5.5 Table

Variants

Admissible

Normal operation — no structural concern

BoundaryApproach

Approaching SLO boundary — monitoring recommended

SustainedOutwardDrift

Memory leak, latency creep, cache degradation, dependency slowdown

AbruptSlewViolation

Crash, spike, exception storm, deployment regression, cascading timeout

RecurrentBoundaryGrazing

Periodic load saturation, GC pressure, cron-triggered spikes

EnvelopeViolation

Confirmed SLO breach — actionable incident

DriftWithRecovery

Outward drift followed by self-correction

SingleCrossing

Transient single-step boundary touch — dismissed by persistence gate

Trait Implementations

impl Clone for ReasonCode

fn clone(&self) -> ReasonCode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReasonCode

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

Formats the value using the given formatter.

impl PartialEq for ReasonCode

fn eq(&self, other: &ReasonCode) -> 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 Copy for ReasonCode

impl Eq for ReasonCode

impl StructuralPartialEq for ReasonCode