Bundle

sapling_crypto::pczt

Struct Bundle 

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

PCZT fields that are specific to producing the transaction’s Sapling bundle (if any).

This struct is for representing Sapling in a partially-created transaction. If you have a fully-created transaction, use the regular Bundle struct.

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impl Bundle

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pub fn parse( spends: Vec<Spend>, outputs: Vec<Output>, value_sum: i128, anchor: [u8; 32], bsk: Option<[u8; 32]>, ) -> Result<Self, ParseError>

Parses a PCZT bundle from its component parts.

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impl Bundle

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pub fn finalize_io<R: RngCore + CryptoRng>( &mut self, sighash: [u8; 32], rng: R, ) -> Result<(), IoFinalizerError>

Finalizes the IO for this bundle.

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impl Bundle

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pub fn update_with<F>(&mut self, f: F) -> Result<(), UpdaterError>
where F: FnOnce(Updater<'_>) -> Result<(), UpdaterError>,

Updates the bundle with information provided in the given closure.

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impl Bundle

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pub fn create_proofs<S, O, R: RngCore + CryptoRng>( &mut self, spend_prover: &S, output_prover: &O, rng: R, ) -> Result<(), ProverError>
where S: SpendProver, O: OutputProver,

Available on crate feature circuit only.

Adds a proof to this PCZT bundle.

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impl Bundle

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pub fn extract_effects<V: TryFrom<i64>>( &self, ) -> Result<Option<Bundle<EffectsOnly, V>>, TxExtractorError>

Extracts the effects of this PCZT bundle as a regular Bundle.

This is used by the Signer role to produce the transaction sighash.

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pub fn extract<V: TryFrom<i64>>( self, ) -> Result<Option<Bundle<Unbound, V>>, TxExtractorError>

Extracts a fully authorized regular Bundle from this PCZT bundle.

This is used by the Transaction Extractor role to produce the final transaction.

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impl Bundle

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pub fn spends(&self) -> &Vec<Spend>

The Sapling spends in this bundle.

Entries are added by the Constructor, and modified by an Updater, IO Finalizer, Prover, Signer, Combiner, or Spend Finalizer.

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pub fn outputs(&self) -> &Vec<Output>

The Sapling outputs in this bundle.

Entries are added by the Constructor, and modified by an Updater, IO Finalizer, Prover, Signer, Combiner, or Spend Finalizer.

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pub fn value_sum(&self) -> &ValueSum

The net value of Sapling spends minus outputs.

This is initialized by the Creator, and updated by the Constructor as spends or outputs are added to the PCZT. It enables per-spend and per-output values to be redacted from the PCZT after they are no longer necessary.

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pub fn anchor(&self) -> &Anchor

The Sapling anchor for this transaction.

Set by the Creator.

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pub fn bsk(&self) -> &Option<SigningKey<Binding>>

The Sapling binding signature signing key.

  • This is None until it is set by the IO Finalizer.
  • The Transaction Extractor uses this to produce the binding signature.
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impl Bundle

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pub fn spends_mut(&mut self) -> &mut [Spend]

Returns a mutable reference to the spends in this bundle.

This is used by Signers to apply signatures with Spend::sign.

Trait Implementations§

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impl Debug for Bundle

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Bundle

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impl RefUnwindSafe for Bundle

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impl Send for Bundle

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impl Sync for Bundle

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impl Unpin for Bundle

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impl UnwindSafe for Bundle

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