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TrieKeyAdapter

reth_trie_db

Trait TrieKeyAdapter 

Source 
pub trait TrieKeyAdapter:
    Clone
    + Send
    + Sync
    + 'static {
    type AccountKey: Key + From<Nibbles> + Clone;
    type StorageSubKey: Key + From<Nibbles> + Clone + PartialEq;
    type StorageValue: Value + StorageTrieEntryLike<SubKey = Self::StorageSubKey>;

    // Required methods
    fn account_key_to_nibbles(key: &Self::AccountKey) -> Nibbles;
    fn subkey_to_nibbles(subkey: &Self::StorageSubKey) -> Nibbles;
}
Expand description

Trait abstracting nibble encoding for trie keys.

Allows the same cursor implementation to work with both legacy (65-byte) and packed (33-byte) nibble encodings. The underlying cursor types are monomorphized per adapter, while DatabaseTrieCursorFactory selects the encoding at runtime.

Required Associated Types§

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type AccountKey: Key + From<Nibbles> + Clone

The key type for account trie lookups (e.g., StoredNibbles or PackedStoredNibbles).

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type StorageSubKey: Key + From<Nibbles> + Clone + PartialEq

The subkey type for storage trie DupSort lookups (e.g., StoredNibblesSubKey or PackedStoredNibblesSubKey).

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type StorageValue: Value + StorageTrieEntryLike<SubKey = Self::StorageSubKey>

The storage trie entry type that pairs a subkey with a BranchNodeCompact.

Required Methods§

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fn account_key_to_nibbles(key: &Self::AccountKey) -> Nibbles

Convert an account key back to Nibbles.

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fn subkey_to_nibbles(subkey: &Self::StorageSubKey) -> Nibbles

Convert a storage subkey back to Nibbles.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§