Struct MerkleTreeState 

pub struct MerkleTreeState<'a, E>
where
    E: Environment,
{ /* private fields */ }

The contents of a MerkleTree, sans its hashers.

This is the serializable form of a Merkle tree, intended for caching one on disk. Note that a MerkleTree itself is deliberately not serializable: its hashers hold precomputed bases (tens of MiBs of group elements for the BHP hashers), and deserializing those is orders of magnitude more expensive than setting them up from scratch - each group element costs a subgroup check, i.e. a full scalar multiplication.

Implementations

impl<E> MerkleTreeState<'_, E>

where E: Environment,

pub fn into_owned(self) -> MerkleTreeState<'static, E>

Converts the state into one that borrows nothing, cloning the tree’s nodes if needed.

This is what allows a state taken from a MerkleTree behind a lock to be used after the lock is released - most importantly, to be serialized without holding it for the duration of the write. It is a no-op for a state that already owns its nodes, such as a deserialized one.

Trait Implementations

impl<'a, E> Clone for MerkleTreeState<'a, E>

where E: Clone + Environment,

fn clone(&self) -> MerkleTreeState<'a, E>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, E> Debug for MerkleTreeState<'a, E>

where E: Debug + Environment,

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

Formats the value using the given formatter.

impl<'de, 'a, E> Deserialize<'de> for MerkleTreeState<'a, E>

where E: Environment + Serialize + DeserializeOwned,

fn deserialize<__D>( __deserializer: __D, ) -> Result<MerkleTreeState<'a, E>, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a, E> Serialize for MerkleTreeState<'a, E>

where E: Environment + Serialize + DeserializeOwned,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.