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AttestationLedger

Struct AttestationLedger 

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pub struct AttestationLedger { /* private fields */ }
Expand description

Every frame’s attestation state from one fan-out, keyed by identity — the join the composer reads so an AuditEntry can say whether the evidence it quotes was signed.

An empty ledger is not “nothing was attested”: it is “nothing was checked”, and a lookup returns AttestationState::NotChecked to say so.

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impl AttestationLedger

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pub fn new() -> Self

An empty ledger: every lookup is AttestationState::NotChecked.

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pub fn record(&mut self, outcome: FrameAttestationOutcome)

Record one frame’s outcome, replacing any previous entry for the same identity.

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pub fn state_for(&self, frame: &FrameId) -> AttestationState

The state recorded for a frame, or AttestationState::NotChecked when this ledger has nothing to say about it.

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pub fn is_empty(&self) -> bool

Whether this ledger recorded nothing.

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pub fn len(&self) -> usize

How many frames this ledger has a state for.

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impl Clone for AttestationLedger

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fn clone(&self) -> AttestationLedger

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

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

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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 Default for AttestationLedger

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fn default() -> AttestationLedger

Returns the “default value” for a type. Read more
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impl Eq for AttestationLedger

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impl FromIterator<FrameAttestationOutcome> for AttestationLedger

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fn from_iter<I: IntoIterator<Item = FrameAttestationOutcome>>( outcomes: I, ) -> Self

Creates a value from an iterator. Read more
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impl PartialEq for AttestationLedger

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for AttestationLedger

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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

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

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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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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

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where T: Sized + Policy<B, E>, P: Policy<B, E>,

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type Output = T

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type Owned = T

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fn clone_into(&self, target: &mut T)

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impl<T, U> TryFrom<U> for T
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type Error = !

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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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