pub struct TransactionAccumulatorSummary(_);
Expand description

An in-memory accumulator for storing a summary of the core transaction info accumulator. It is a summary in the sense that it only stores maximally frozen subtree nodes rather than storing all leaves and internal nodes.

Light clients and light nodes use this type to store their currently verified view of the transaction accumulator. When verifying state proofs, these clients attempt to extend their accumulator summary with an AccumulatorConsistencyProof to verifiably ratchet their trusted view of the accumulator to a newer state.

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impl TransactionAccumulatorSummary

pub fn new( accumulator: InMemoryAccumulator<TransactionAccumulatorHasher> ) -> Result<TransactionAccumulatorSummary, Error>

pub fn version(&self) -> u64

pub fn root_hash(&self) -> HashValue

pub fn verify_consistency(&self, ledger_info: &LedgerInfo) -> Result<(), Error>

Verify that this accumulator summary is “consistent” with the given LedgerInfo, i.e., they both have the same version and accumulator root hash.

pub fn try_from_genesis_proof( genesis_proof: AccumulatorConsistencyProof, target_version: u64 ) -> Result<TransactionAccumulatorSummary, Error>

Try to build an accumulator summary using a consistency proof starting from pre-genesis.

pub fn try_extend_with_proof( &self, consistency_proof: &AccumulatorConsistencyProof, target_li: &LedgerInfo ) -> Result<TransactionAccumulatorSummary, Error>

Try to extend an existing accumulator summary with a consistency proof starting from our current version. Then validate that the resulting accumulator summary is consistent with the given target LedgerInfo.

Trait Implementations§

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impl Arbitrary for TransactionAccumulatorSummary

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type Parameters = ()

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.
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type Strategy = BoxedStrategy<TransactionAccumulatorSummary>

The type of Strategy used to generate values of type Self.
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fn arbitrary_with( _args: <TransactionAccumulatorSummary as Arbitrary>::Parameters ) -> <TransactionAccumulatorSummary as Arbitrary>::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args. Read more
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fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). Read more
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impl Clone for TransactionAccumulatorSummary

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fn clone(&self) -> TransactionAccumulatorSummary

Returns a copy 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 TransactionAccumulatorSummary

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for TransactionAccumulatorSummary

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fn deserialize<__D>( __deserializer: __D ) -> Result<TransactionAccumulatorSummary, <__D as Deserializer<'de>>::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq<TransactionAccumulatorSummary> for TransactionAccumulatorSummary

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for TransactionAccumulatorSummary

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fn serialize<__S>( &self, __serializer: __S ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Eq for TransactionAccumulatorSummary

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impl StructuralEq for TransactionAccumulatorSummary

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impl StructuralPartialEq for TransactionAccumulatorSummary

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

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> Same<T> for T

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type Output = T

Should always be Self
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impl<T> TestOnlyHash for Twhere T: Serialize + ?Sized,

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fn test_only_hash(&self) -> HashValue

Generates a hash used only for tests.
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impl<T> ToOwned for Twhere 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 Twhere 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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,