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InvariantViolation

Enum InvariantViolation 

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pub enum InvariantViolation {
    Convergence {
        agent_a: usize,
        agent_b: usize,
        only_in_a: Vec<u64>,
        only_in_b: Vec<u64>,
    },
    Commutativity {
        permutation_index: usize,
        missing_events: Vec<u64>,
        extra_events: Vec<u64>,
    },
    Idempotence {
        event_id: u64,
        events_before: Vec<u64>,
        events_after_dup: Vec<u64>,
    },
    CausalConsistency {
        observer_agent: usize,
        source_agent: usize,
        missing_seq: u64,
        present_higher_seq: u64,
    },
    TriageStability {
        agent_a: usize,
        agent_b: usize,
        score_a: f64,
        score_b: f64,
        diff: f64,
        epsilon: f64,
    },
}
Expand description

Diagnostic information for a single failed invariant check.

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Convergence

Two agents have different known_events after full delivery.

Emitted by check_convergence.

Fields

§agent_a: usize

First diverging agent ID.

§agent_b: usize

Second diverging agent ID.

§only_in_a: Vec<u64>

Events present in agent_a but absent in agent_b.

§only_in_b: Vec<u64>

Events present in agent_b but absent in agent_a.

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Commutativity

Re-ordering event delivery produced a different final state.

Emitted by check_commutativity.

Fields

§permutation_index: usize

Zero-based index of the shuffled permutation that diverged.

§missing_events: Vec<u64>

Events present in the canonical state but missing from the shuffled result.

§extra_events: Vec<u64>

Events present in the shuffled result but absent from the canonical state.

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Idempotence

Re-applying an already-applied event mutated the state.

Emitted by check_idempotence.

Fields

§event_id: u64

The event that was re-applied.

§events_before: Vec<u64>

Known events before the duplicate application.

§events_after_dup: Vec<u64>

Known events after the duplicate application (should equal events_before).

§

CausalConsistency

An agent knows event (source, seq=N) but is missing (source, seq=M) where M < N.

Emitted by check_causality.

Fields

§observer_agent: usize

Agent that is missing the earlier event.

§source_agent: usize

Agent that emitted both events.

§missing_seq: u64

Sequence number that is absent but required by causality.

§present_higher_seq: u64

A higher sequence number that is present, proving the gap.

§

TriageStability

Triage scores diverge beyond the allowed epsilon across replicas.

Emitted by check_triage_stability.

Fields

§agent_a: usize

First agent involved in the comparison.

§agent_b: usize

Second agent involved in the comparison.

§score_a: f64

Score computed for agent_a.

§score_b: f64

Score computed for agent_b.

§diff: f64

Absolute difference |score_a - score_b|.

§epsilon: f64

Maximum permitted difference.

Trait Implementations§

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impl Clone for InvariantViolation

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fn clone(&self) -> InvariantViolation

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for InvariantViolation

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

Formats the value using the given formatter. Read more
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impl PartialEq for InvariantViolation

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for InvariantViolation

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.