VerifiedMultiProof

nomt_core::proof

Struct VerifiedMultiProof 

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pub struct VerifiedMultiProof { /* private fields */ }
Expand description

A verified multi-proof.

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impl VerifiedMultiProof

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pub fn find_index_for(&self, key_path: &KeyPath) -> Result<usize, KeyOutOfScope>

Find the index of the path contained in this multi-proof, if any, which would prove the given key.

Runtime is O(log(n)) in the number of paths this multi-proof contains.

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pub fn confirm_nonexistence( &self, key_path: &KeyPath, ) -> Result<bool, KeyOutOfScope>

Check whether this proves that a key has no value in the trie. Runtime is O(log(n)) in the number of paths this multi-proof contains.

A return value of Ok(true) confirms that the key indeed has no value in the trie. A return value of Ok(false) means that the key definitely exists within the trie.

Fails if the key is out of the scope of this proof.

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pub fn confirm_value( &self, expected_leaf: &LeafData, ) -> Result<bool, KeyOutOfScope>

Check whether this proves that a key has no value in the trie. Runtime is O(log(n)) in the number of paths this multi-proof contains.

A return value of Ok(true) confirms that this key indeed has this value in the trie. A return value of Ok(false) means that this key has a different value or does not exist.

Fails if the key is out of the scope of this proof.

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pub fn confirm_nonexistence_with_index( &self, key_path: &KeyPath, index: usize, ) -> Result<bool, KeyOutOfScope>

Check whether the specific path with index index proves that a key has no value in the trie. Runtime is O(1).

A return value of Ok(true) confirms that the key indeed has no value in the trie. A return value of Ok(false) means that the key definitely exists within the trie.

Fails if the key is out of the scope of this path.

§Panics

Panics if the index is out-of-bounds.

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pub fn confirm_value_with_index( &self, expected_leaf: &LeafData, index: usize, ) -> Result<bool, KeyOutOfScope>

Check whether this proves that a key has no value in the trie. Runtime is O(1).

A return value of Ok(true) confirms that this key indeed has this value in the trie. A return value of Ok(false) means that this key has a different value or does not exist in the trie.

Fails if the key is out of the scope of this path.

§Panics

Panics if the index is out-of-bounds.

Trait Implementations§

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impl Clone for VerifiedMultiProof

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fn clone(&self) -> VerifiedMultiProof

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for VerifiedMultiProof

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

Formats the value using the given formatter. Read more

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