zcash_primitives::transaction

Enum TxVersion

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pub enum TxVersion {
    Sprout(u32),
    V3,
    V4,
    V5,
}
Expand description

The set of defined transaction format versions.

This is serialized in the first four or eight bytes of the transaction format, and represents valid combinations of the (overwintered, version, version_group_id) transaction fields. Note that this is not dependent on epoch, only on transaction encoding. For example, if a particular epoch defines a new transaction version but also allows the previous version, then only the new version would be added to this enum.

Variants§

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Sprout(u32)

Transaction versions allowed prior to Overwinter activation. The argument MUST be in the range 1..=0x7FFFFFFF. Only versions 1 and 2 are defined; 3..=0x7FFFFFFF was allowed by consensus but considered equivalent to 2. This is specified in § 7.1 Transaction Encoding and Consensus.

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V3

Transaction version 3, which was introduced by the Overwinter network upgrade and allowed until Sapling activation. It is specified in § 7.1 Transaction Encoding and Consensus.

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V4

Transaction version 4, which was introduced by the Sapling network upgrade. It is specified in § 7.1 Transaction Encoding and Consensus.

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V5

Transaction version 5, which was introduced by the NU5 network upgrade. It is specified in § 7.1 Transaction Encoding and Consensus and ZIP 225.

Implementations§

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impl TxVersion

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pub fn read<R: Read>(reader: R) -> Result<Self>

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pub fn header(&self) -> u32

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pub fn version_group_id(&self) -> u32

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pub fn write<W: Write>(&self, writer: W) -> Result<()>

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pub fn has_sprout(&self) -> bool

Returns true if this transaction version supports the Sprout protocol.

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pub fn has_overwinter(&self) -> bool

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pub fn has_sapling(&self) -> bool

Returns true if this transaction version supports the Sapling protocol.

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pub fn has_orchard(&self) -> bool

Returns true if this transaction version supports the Orchard protocol.

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pub fn suggested_for_branch(consensus_branch_id: BranchId) -> Self

Suggests the transaction version that should be used in the given Zcash epoch.

Trait Implementations§

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impl Clone for TxVersion

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fn clone(&self) -> TxVersion

Returns a duplicate 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 TxVersion

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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 PartialEq for TxVersion

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

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for TxVersion

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impl Eq for TxVersion

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impl StructuralPartialEq for TxVersion

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