Enum WcetLoopBoundSource 

pub enum WcetLoopBoundSource {
    Static,
    HintVerified,
    MaskCeiling,
}

How a loop’s trip count was established (#778 phase 2).

Variants

Static

Fully static proof: const-initialized counter, const step, const bound, exit-guaranteeing comparison — the trip count is derived by synth alone.

HintVerified

The loop is an equality-exit shape synth only bounds under an explicit --wcet-hints assertion; the hint was CHECKED against synth’s own derived trip count (divisibility + monotonicity + derived ≤ hint) before use. The emitted trip count is still synth’s DERIVED value, never the raw hint.

MaskCeiling

(#778 phase 5) The loop’s exit bound is a DATA-DEPENDENT masked ceiling (i REL (x & K) for a runtime x): the real per-iteration bound lies in [0, K] for ANY input (x & K ∈ [0,K]), so synth DERIVES the worst-case trip as the MAX over both endpoints of that interval (rhs = K and rhs = 0, both required to terminate) — an entry-independent ceiling. Like [HintVerified] this is HINT-GATED: the derived trip is consumed only under an explicit --wcet-hints entry the derived count respects (derived ≤ hint); the emitted trip is synth’s DERIVED value, never the raw hint. A distinct source (not HintVerified) so the sidecar states the extra data-dependent-ceiling assumption the bound rests on.

Trait Implementations

impl Clone for WcetLoopBoundSource

fn clone(&self) -> WcetLoopBoundSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WcetLoopBoundSource

impl Debug for WcetLoopBoundSource

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WcetLoopBoundSource

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for WcetLoopBoundSource

impl PartialEq for WcetLoopBoundSource

fn eq(&self, other: &WcetLoopBoundSource) -> bool

Equality operator ==.

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

Inequality operator !=.

impl Serialize for WcetLoopBoundSource

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 WcetLoopBoundSource