sapling_crypto::builder

Struct Builder

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

A mutable builder type for constructing Sapling bundles.

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impl Builder

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pub fn new( zip212_enforcement: Zip212Enforcement, bundle_type: BundleType, anchor: Anchor, ) -> Self

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pub fn inputs(&self) -> &[SpendInfo]

Returns the list of Sapling inputs that have been added to the builder.

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pub fn outputs(&self) -> &[OutputInfo]

Returns the Sapling outputs that have been added to the builder.

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pub fn value_balance<V: TryFrom<i64>>(&self) -> V

Returns the net value represented by the spends and outputs added to this builder.

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pub fn add_spend( &mut self, fvk: FullViewingKey, note: Note, merkle_path: MerklePath, ) -> Result<(), Error>

Adds a Sapling note to be spent in this transaction.

Returns an error if the given Merkle path does not have the same anchor as the paths for previous Sapling notes.

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pub fn add_output( &mut self, ovk: Option<OutgoingViewingKey>, to: PaymentAddress, value: NoteValue, memo: [u8; 512], ) -> Result<(), Error>

Adds a Sapling address to send funds to.

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pub fn build<SP: SpendProver, OP: OutputProver, R: RngCore, V: TryFrom<i64>>( self, extsks: &[ExtendedSpendingKey], rng: R, ) -> Result<Option<(UnauthorizedBundle<V>, SaplingMetadata)>, Error>

Constructs the Sapling bundle from the builder’s accumulated state.

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pub fn build_for_pczt( self, rng: impl RngCore, ) -> Result<(Bundle, SaplingMetadata), Error>

Builds a bundle containing the given spent notes and outputs along with their metadata, for inclusion in a PCZT.

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