Crate reth_trie

The implementation of Merkle Patricia Trie, a cryptographically authenticated radix trie that is used to store key-value bindings. https://ethereum.org/en/developers/docs/data-structures-and-encoding/patricia-merkle-trie/

Feature Flags

• test-utils: Export utilities for testing

Modules

• forward_cursor
  The implementation of forward-only in-memory cursor.
• hash_builder
  The implementation of hash builder. MPT hash builder implementation.
• hashed_cursor
  The cursor implementations for navigating hashed state.
• metricsmetrics
  Trie calculation metrics.
• node_iter
  The iterators for traversing existing intermediate hashes and updated trie leaves.
• prefix_set
  The implementation of a container for storing intermediate changes to a trie. The container indicates when the trie has been modified.
• proof
  Merkle proof generation.
• root
  Common root computation functions.
• serde_bincode_compatserde and serde-bincode-compat
  Bincode-compatible serde implementations for trie types.
• stats
  Trie calculation stats.
• test_utilstest-utils
  Collection of trie-related test utilities.
• trie_cursor
  The cursor implementations for navigating account and storage tries.
• triehashtest-utils
  Implementation of hasher using our keccak256 hashing function for compatibility with triehash crate.
• updates
  Buffer for trie updates.
• walker
  The trie walker for iterating over the trie nodes.
• witness
  Trie witness generation.

Structs

• AccountProof
  The merkle proof with the relevant account info.
• BranchNode
  A branch node in an Ethereum Merkle Patricia Trie.
• BranchNodeCompact
  A struct representing a branch node in an Ethereum trie.
• BranchNodeRef
  A reference to BranchNode and its state mask. NOTE: The stack may contain more items that specified in the state mask.
• ExtensionNode
  An extension node in an Ethereum Merkle Patricia Trie.
• ExtensionNodeRef
  Reference to the extension node. See ExtensionNode from more information.
• HashBuilder
  A component used to construct the root hash of the trie.
• HashedAccountsSorted
  Sorted account state optimized for iterating during state trie calculation.
• HashedPostState
  Representation of in-memory hashed state.
• HashedPostStateSorted
  Sorted hashed post state optimized for iterating during state trie calculation.
• HashedStorage
  Representation of in-memory hashed storage.
• HashedStorageSorted
  Sorted hashed storage optimized for iterating during state trie calculation.
• IntermediateStateRootState
  The intermediate state of the state root computation.
• KeccakKeyHasher
  A key hasher that uses the Keccak-256 hash function.
• LeafNode
  A leaf node represents the endpoint or terminal node in the trie. In other words, a leaf node is where actual values are stored.
• LeafNodeRef
  Reference to the leaf node. See LeafNode from more information.
• MultiProof
  The state multiproof of target accounts and multiproofs of their storage tries. Multiproof is effectively a state subtrie that only contains the nodes in the paths of target accounts.
• Nibbles
  Structure representing a sequence of nibbles.
• RlpNode
  An RLP-encoded node.
• StateRoot
  StateRoot is used to compute the root node of a state trie.
• StorageMultiProof
  The merkle multiproof of storage trie.
• StorageProof
  The merkle proof of the storage entry.
• StorageRoot
  StorageRoot is used to compute the root node of an account storage trie.
• StorageTrieEntry
  Account storage trie node.
• StoredNibbles
  The representation of nibbles of the merkle trie stored in the database.
• StoredNibblesSubKey
  The representation of nibbles of the merkle trie stored in the database.
• StoredSubNode
  Walker sub node for storing intermediate state root calculation state in the database.
• TrieAccount
  An Ethereum account as represented in the trie.
• TrieInput
  Inputs for trie-related computations.
• TrieMask
  A struct representing a mask of 16 bits, used for Ethereum trie operations.

Enums

• StateRootProgress
  The progress of the state root computation.
• TrieNode
  Enum representing an MPT trie node.

Constants

• CHILD_INDEX_RANGE
  The range of valid child indexes.
• EMPTY_ROOT_HASH
  Root hash of an empty trie.
• TRIE_ACCOUNT_RLP_MAX_SIZE
  The maximum size of RLP encoded trie account in bytes. 2 (header) + 4 * 1 (field lens) + 8 (nonce) + 32 * 3 (balance, storage root, code hash)

Traits

• KeyHasher
  Trait for hashing keys in state.

Functions

• encode_path_leaf
  Encodes a given path leaf as a compact array of bytes.
• rlp_nodeDeprecated
  Given an RLP-encoded node, returns it either as rlp(node) or rlp(keccak(rlp(node))).
• word_rlpDeprecated
  Optimization for quick RLP-encoding of a 32-byte word.