Enum zebra_chain::sapling::shielded_data::TransferData
source · pub enum TransferData<AnchorV>where
AnchorV: AnchorVariant + Clone,{
SpendsAndMaybeOutputs {
shared_anchor: AnchorV::Shared,
spends: AtLeastOne<Spend<AnchorV>>,
maybe_outputs: Vec<Output>,
},
JustOutputs {
outputs: AtLeastOne<Output>,
},
}
Expand description
A bundle of Spend
and Output
descriptions, and a shared anchor.
This wrapper type bundles at least one Spend or Output description with
the required anchor data, so that an Option<ShieldedData>
(which contains
this type) correctly models the presence or absence of any spends and
shielded data, across both V4 and V5 transactions.
Specifically, TransferData ensures that:
- there is at least one spend or output, and
- the shared anchor is only present when there are spends.
Variants§
SpendsAndMaybeOutputs
Fields
The shared anchor for all Spend
s in this transaction.
The anchor is the root of the Sapling note commitment tree in a previous block. This root should be in the best chain for a transaction to be mined, and it must be in the relevant chain for a transaction to be valid.
Some transaction versions have a per-spend anchor, rather than a shared anchor.
Use the shared_anchor
method to access this field.
spends: AtLeastOne<Spend<AnchorV>>
At least one spend.
Use the ShieldedData::spends
method to get an iterator over the
Spend
s in this TransferData
.
maybe_outputs: Vec<Output>
Maybe some outputs (can be empty), in the order they appear in the transaction.
Use the ShieldedData::outputs
method to get an iterator over the
Output
s in this TransferData
.
A bundle containing at least one spend, and the shared spend anchor. There can also be zero or more outputs.
In Transaction::V5, if there are any spends, there must also be a shared spend anchor.
JustOutputs
Fields
outputs: AtLeastOne<Output>
At least one output, in the order they appear in the transaction.
Use the ShieldedData::outputs
method to get an iterator over the
Output
s in this TransferData
.
A bundle containing at least one output, with no spends and no shared spend anchor.
In Transaction::V5, if there are no spends, there must not be a shared anchor.
Implementations§
source§impl<AnchorV> TransferData<AnchorV>where
AnchorV: AnchorVariant + Clone,
Spend<PerSpendAnchor>: From<(Spend<AnchorV>, AnchorV::Shared)>,
impl<AnchorV> TransferData<AnchorV>where AnchorV: AnchorVariant + Clone, Spend<PerSpendAnchor>: From<(Spend<AnchorV>, AnchorV::Shared)>,
sourcepub fn spends_per_anchor(
&self
) -> impl Iterator<Item = Spend<PerSpendAnchor>> + '_
pub fn spends_per_anchor( &self ) -> impl Iterator<Item = Spend<PerSpendAnchor>> + '_
Iterate over the Spend
s for this transaction, returning
Spend<PerSpendAnchor>
regardless of the underlying transaction version.
Allows generic operations over V4 and V5 transactions, including:
- spend verification, and
- non-malleable transaction ID generation.
Correctness
Do not use this function for serialization.
source§impl<AnchorV> TransferData<AnchorV>where
AnchorV: AnchorVariant + Clone,
impl<AnchorV> TransferData<AnchorV>where AnchorV: AnchorVariant + Clone,
sourcepub fn spends(&self) -> impl Iterator<Item = &Spend<AnchorV>>
pub fn spends(&self) -> impl Iterator<Item = &Spend<AnchorV>>
Iterate over the Spend
s for this transaction, returning them as
their generic type.
sourcepub fn outputs(&self) -> impl Iterator<Item = &Output>
pub fn outputs(&self) -> impl Iterator<Item = &Output>
Iterate over the Output
s for this transaction.
Provide the shared anchor for this transaction, if present.
The shared anchor is only present if:
- there is at least one spend, and
- this is a
V5
transaction.
Trait Implementations§
source§impl Arbitrary for TransferData<PerSpendAnchor>
impl Arbitrary for TransferData<PerSpendAnchor>
§type Parameters = ()
type Parameters = ()
arbitrary_with
accepts for configuration
of the generated Strategy
. Parameters must implement Default
.source§fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy
fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy
§type Strategy = BoxedStrategy<TransferData<PerSpendAnchor>>
type Strategy = BoxedStrategy<TransferData<PerSpendAnchor>>
Strategy
used to generate values of type Self
.§type Parameters = ()
type Parameters = ()
arbitrary_with
accepts for configuration
of the generated Strategy
. Parameters must implement Default
.source§fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy
fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy
§type Strategy = BoxedStrategy<TransferData<SharedAnchor>>
type Strategy = BoxedStrategy<TransferData<SharedAnchor>>
Strategy
used to generate values of type Self
.source§impl<AnchorV> Clone for TransferData<AnchorV>where
AnchorV: AnchorVariant + Clone + Clone,
AnchorV::Shared: Clone,
impl<AnchorV> Clone for TransferData<AnchorV>where AnchorV: AnchorVariant + Clone + Clone, AnchorV::Shared: Clone,
source§fn clone(&self) -> TransferData<AnchorV>
fn clone(&self) -> TransferData<AnchorV>
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl<AnchorV> Debug for TransferData<AnchorV>where
AnchorV: AnchorVariant + Clone + Debug,
AnchorV::Shared: Debug,
impl<AnchorV> Debug for TransferData<AnchorV>where AnchorV: AnchorVariant + Clone + Debug, AnchorV::Shared: Debug,
source§impl<'de, AnchorV> Deserialize<'de> for TransferData<AnchorV>where
AnchorV: AnchorVariant + Clone + Deserialize<'de>,
AnchorV::Shared: Deserialize<'de>,
impl<'de, AnchorV> Deserialize<'de> for TransferData<AnchorV>where AnchorV: AnchorVariant + Clone + Deserialize<'de>, AnchorV::Shared: Deserialize<'de>,
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,
source§impl<AnchorV> PartialEq<TransferData<AnchorV>> for TransferData<AnchorV>where
AnchorV: AnchorVariant + Clone + PartialEq,
AnchorV::Shared: PartialEq,
impl<AnchorV> PartialEq<TransferData<AnchorV>> for TransferData<AnchorV>where AnchorV: AnchorVariant + Clone + PartialEq, AnchorV::Shared: PartialEq,
source§fn eq(&self, other: &TransferData<AnchorV>) -> bool
fn eq(&self, other: &TransferData<AnchorV>) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl<AnchorV> Serialize for TransferData<AnchorV>where
AnchorV: AnchorVariant + Clone + Serialize,
AnchorV::Shared: Serialize,
impl<AnchorV> Serialize for TransferData<AnchorV>where AnchorV: AnchorVariant + Clone + Serialize, AnchorV::Shared: Serialize,
impl<AnchorV> Eq for TransferData<AnchorV>where AnchorV: AnchorVariant + Clone + Eq, AnchorV::Shared: Eq,
impl<AnchorV> StructuralEq for TransferData<AnchorV>where AnchorV: AnchorVariant + Clone,
impl<AnchorV> StructuralPartialEq for TransferData<AnchorV>where AnchorV: AnchorVariant + Clone,
Auto Trait Implementations§
impl<AnchorV> RefUnwindSafe for TransferData<AnchorV>where <AnchorV as AnchorVariant>::PerSpend: RefUnwindSafe, <AnchorV as AnchorVariant>::Shared: RefUnwindSafe,
impl<AnchorV> Send for TransferData<AnchorV>where <AnchorV as AnchorVariant>::PerSpend: Send, <AnchorV as AnchorVariant>::Shared: Send,
impl<AnchorV> Sync for TransferData<AnchorV>where <AnchorV as AnchorVariant>::PerSpend: Sync, <AnchorV as AnchorVariant>::Shared: Sync,
impl<AnchorV> Unpin for TransferData<AnchorV>where <AnchorV as AnchorVariant>::PerSpend: Unpin, <AnchorV as AnchorVariant>::Shared: Unpin,
impl<AnchorV> UnwindSafe for TransferData<AnchorV>where <AnchorV as AnchorVariant>::PerSpend: UnwindSafe, <AnchorV as AnchorVariant>::Shared: UnwindSafe,
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