Enum ChainEvent 

pub enum ChainEvent {
    CycleDetected {
        stage: StageId,
    },
    MaxHopsExceeded {
        stage: StageId,
    },
}

Condition that ended a successor-chain walk without finding a non-deprecated stage.

Variants

CycleDetected

Chain contained a cycle. stage is the id we revisited. Rewrites up to the cycle point are still applied; execution continues with the last distinct id before the loop.

Fields

stage: StageId

MaxHopsExceeded

Chain was longer than MAX_DEPRECATION_HOPS. Execution continues with whatever id the walker reached at the cap.

Fields

stage: StageId

Trait Implementations

impl Clone for ChainEvent

fn clone(&self) -> ChainEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChainEvent

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

Formats the value using the given formatter.

impl PartialEq for ChainEvent

fn eq(&self, other: &ChainEvent) -> 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 Eq for ChainEvent

impl StructuralPartialEq for ChainEvent