Trait trie_db::TrieRecorder

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pub trait TrieRecorder<H> {
    fn record<'a>(&mut self, access: TrieAccess<'a, H>);
    fn trie_nodes_recorded_for_key(&self, key: &[u8]) -> RecordedForKey;
}
Expand description

A trie recorder that can be used to record all kind of TrieAccess’s.

To build a trie proof a recorder is required that records all trie accesses. These recorded trie accesses can then be used to create the proof.

Required Methods§

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fn record<'a>(&mut self, access: TrieAccess<'a, H>)

Record the given TrieAccess.

Depending on the TrieAccess a call of Self::trie_nodes_recorded_for_key afterwards must return the correct recorded state.

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fn trie_nodes_recorded_for_key(&self, key: &[u8]) -> RecordedForKey

Check if we have recorded any trie nodes for the given key.

Returns RecordedForKey to express the state of the recorded trie nodes.

Implementors§