Struct patricia_trie_ethereum::RlpNodeCodec

pub struct RlpNodeCodec<H: Hasher> { /* fields omitted */ }

Concrete implementation of a NodeCodec with Rlp encoding, generic over the Hasher

Trait Implementations

impl<H: Default + Hasher> Default for RlpNodeCodec<H>

fn default() -> RlpNodeCodec<H>

Returns the "default value" for a type.

impl<H: Clone + Hasher> Clone for RlpNodeCodec<H>

fn clone(&self) -> RlpNodeCodec<H>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl NodeCodec<KeccakHasher> for RlpNodeCodec<KeccakHasher>

type Error = DecoderError

Encoding error type

const HASHED_NULL_NODE: H256

HASHED_NULL_NODE: H256 = H256([86, 232, 31, 23, 27, 204, 85, 166, 255, 131, 69, 230, 146, 192, 248,
      110, 91, 72, 224, 27, 153, 108, 173, 192, 1, 98, 47, 181, 227, 99, 180,
      33])

Null node type

fn decode(data: &[u8]) -> Result<Node, Self::Error>

Decode bytes to a Node. Returns Self::E on failure.

fn try_decode_hash(data: &[u8]) -> Option<<KeccakHasher as Hasher>::Out>

Decode bytes to the Hashers output type. Returns None on failure.

fn is_empty_node(data: &[u8]) -> bool

Check if the provided bytes correspond to the codecs "empty" node.

fn empty_node() -> ElasticArray1024<u8>

Returns an empty node

fn leaf_node(partial: &[u8], value: &[u8]) -> ElasticArray1024<u8>

Returns an encoded leaft node

fn ext_node(     partial: &[u8],     child_ref: ChildReference<<KeccakHasher as Hasher>::Out> ) -> ElasticArray1024<u8>

Returns an encoded extension node

fn branch_node<I>(     children: I,     value: Option<ElasticArray128<u8>> ) -> ElasticArray1024<u8> where     I: IntoIterator<Item = Option<ChildReference<<KeccakHasher as Hasher>::Out>>>,

Returns an encoded branch node. Takes an iterator yielding ChildReference<H::Out> and an optional value