Struct zebra_chain::sapling::tree::SerializedTree

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pub struct SerializedTree(/* private fields */);
Expand description

A serialized Sapling note commitment tree.

The format of the serialized data is compatible with CommitmentTree from librustzcash and not with Frontier from the crate incrementalmerkletree. Zebra follows the former format in order to stay consistent with zcashd in RPCs. Note that NoteCommitmentTree itself is represented as Frontier.

The formats are semantically equivalent. The primary difference between them is that in Frontier, the vector of parents is dense (we know where the gaps are from the position of the leaf in the overall tree); whereas in CommitmentTree, the vector of parent hashes is sparse with None values in the gaps.

The sparse format, used in this implementation, allows representing invalid commitment trees while the dense format allows representing only valid commitment trees.

It is likely that the dense format will be used in future RPCs, in which case the current implementation will have to change and use the format compatible with Frontier instead.

Trait Implementations§

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impl AsRef<[u8]> for SerializedTree

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fn as_ref(&self) -> &[u8] ⓘ

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for SerializedTree

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fn clone(&self) -> SerializedTree

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 SerializedTree

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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 From<&NoteCommitmentTree> for SerializedTree

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fn from(tree: &NoteCommitmentTree) -> Self

Converts to this type from the input type.
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impl From<Option<Arc<NoteCommitmentTree>>> for SerializedTree

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fn from(maybe_tree: Option<Arc<NoteCommitmentTree>>) -> Self

Converts to this type from the input type.
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impl PartialEq for SerializedTree

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fn eq(&self, other: &SerializedTree) -> 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 SerializedTree

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

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

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impl StructuralPartialEq for SerializedTree

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Views self as an immutable bit-slice region with the O ordering.
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