feat(wip)!: integrate jolt#8
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Actionable comments posted: 0
Out of diff range and nitpick comments (3)
src/lib.rs (1)
Line range hint
5-22: Update the function documentation to reflect the new input type and hashing method.- /// Computes the SHA256 hash of the given string. - /// - /// This function takes a string reference as input and returns its SHA256 hash in hexadecimal format. We're using the `crypto-hash` crate to compute the hash. + /// Computes the SHA256 hash of the given input. + /// + /// This function takes any input type that implements `AsRef<[u8]>` as input and returns its SHA256 hash as a byte array. We're using the `sha2` crate to compute the hash.src/node.rs (2)
Line range hint
4-64: Add documentation for the new fieldsis_left_sibling,left, andrightin theInnerNodestructure.
Line range hint
96-146: Add documentation for the new fieldsactive,value,label, andnextin theLeafNodestructure.
| concat_slices(vec![&node.get_hash(), ¤t_hash]) | ||
| } else { | ||
| format!("{}{}", current_hash, node.get_hash()) | ||
| concat_slices(vec![¤t_hash, &node.get_hash()]) |
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Optimize the hash concatenation logic by considering pre-allocation of vector size.
- concat_slices(vec![&node.get_hash(), ¤t_hash])
+ concat_slices(Vec::with_capacity(2, &[&node.get_hash(), ¤t_hash]))Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| concat_slices(vec![&node.get_hash(), ¤t_hash]) | |
| } else { | |
| format!("{}{}", current_hash, node.get_hash()) | |
| concat_slices(vec![¤t_hash, &node.get_hash()]) | |
| concat_slices(Vec::with_capacity(2, &[&node.get_hash(), ¤t_hash])) | |
| } else { | |
| concat_slices(vec![¤t_hash, &node.get_hash()]) |
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Actionable comments posted: 4
Out of diff range and nitpick comments (1)
src/node.rs (1)
190-190: Use constants for common values to avoid magic numbers.Defining constants for commonly used values, such as
[0; 32]and[0xFF; 32], can improve code readability and maintainability by providing meaningful names for these values.
| #[derive(Serialize, Deserialize, Debug, Clone)] | ||
| pub struct InnerNode { | ||
| pub hash: String, | ||
| pub hash: [u8; 32], |
There was a problem hiding this comment.
Consider using a more descriptive type for hash to ensure type safety and clarity.
Using a custom type for hashes, such as type Hash = [u8; 32];, could improve readability and maintainability by making the purpose of the data clearer and ensuring type safety.
| } | ||
| } | ||
|
|
||
| // TODO use generics, macros or trait to avoid code duplication, now only for testing purposes |
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Consider using generics to reduce code duplication.
Using generics for node creation functions could reduce code duplication and improve code maintainability. For example, you could define a generic function that takes parameters common to both InnerNode and ZkInnerNode.
| value: [u8; 32], | ||
| next: [u8; 32], | ||
| ) -> Self { | ||
| let hash = concat_slices(vec![&[active as u8], &label, &value, &next]); |
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Tip
Codebase Verification
The hash calculation logic for LeafNode does not incorporate all the fields used in the LeafNode::new constructor. Specifically, the is_left parameter is missing in the hash calculation. This could potentially lead to incorrect behavior if the is_left field affects the uniqueness or correctness of the hash. The relevant code locations are:
src/node.rsline 129: Hash calculation inconcat_slicesfunction.
Analysis chain
Validate hash calculation logic for LeafNode.
Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify that the hash calculation logic for `LeafNode` correctly incorporates all relevant fields.
# Test: Search for the function usage and ensure it includes all necessary fields.
rg --type rust $'LeafNode::new'
Length of output: 373
| match self { | ||
| Node::Inner(node) => { | ||
| let hash = format!("{}{}", node.left.get_hash(), node.right.get_hash()); | ||
| let hash = concat_slices(vec![&node.left.get_hash(), &node.right.get_hash()]); |
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Optimize hash concatenation by pre-allocating vector size.
- concat_slices(vec![&node.left.get_hash(), &node.right.get_hash()])
+ concat_slices(Vec::with_capacity(2, &[&node.left.get_hash(), &node.right.get_hash()]))Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| let hash = concat_slices(vec![&node.left.get_hash(), &node.right.get_hash()]); | |
| let hash = concat_slices(Vec::with_capacity(2, &[&node.left.get_hash(), &node.right.get_hash()])); |
| combined.extend_from_slice(&left); | ||
| combined.extend_from_slice(&right); | ||
| ZkInnerNode { | ||
| hash: sha256(&concat_slices(combined)), |
There was a problem hiding this comment.
Optimize vector operations by pre-allocating the required capacity.
- Vec::new()
+ Vec::with_capacity(2)Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| hash: sha256(&concat_slices(combined)), | |
| hash: sha256(&concat_slices(combined)), |
| combined.extend_from_slice(&label); | ||
| combined.extend_from_slice(&value); | ||
| combined.extend_from_slice(&next); | ||
| let hash = concat_slices(combined); |
There was a problem hiding this comment.
Consider using a more efficient method for hash concatenation.
- let hash = concat_slices(combined);
+ let hash = concat_slices(Vec::with_capacity(4, &combined));Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| let hash = concat_slices(combined); | |
| let hash = concat_slices(Vec::with_capacity(4, &combined)); |
| } | ||
| } | ||
|
|
||
| //TODO: use generics, macros or trait to avoid code duplication, now only for testing purposes |
There was a problem hiding this comment.
Avoid code duplication by implementing traits or generics.
Consider refactoring the code to use traits or generics to handle common functionalities between Node and ZkNode, reducing code duplication and improving maintainability.
| let mut combined = Vec::new(); | ||
| let hash = if node.is_left_sibling() { | ||
| format!("{}{}", node.get_hash(), current_hash) | ||
| combined.extend_from_slice(&node.get_hash()); | ||
| combined.extend_from_slice(¤t_hash); | ||
| concat_slices(combined) | ||
| } else { | ||
| format!("{}{}", current_hash, node.get_hash()) | ||
| combined.extend_from_slice(¤t_hash); | ||
| combined.extend_from_slice(&node.get_hash()); | ||
| concat_slices(combined) |
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Ensure consistent hash concatenation order.
- let hash = if node.is_left_sibling() {
- combined.extend_from_slice(&node.get_hash());
- combined.extend_from_slice(¤t_hash);
- concat_slices(combined)
- } else {
- combined.extend_from_slice(¤t_hash);
- combined.extend_from_slice(&node.get_hash());
- concat_slices(combined)
- };
+ let hash = concat_slices(if node.is_left_sibling() {
+ vec![&node.get_hash(), ¤t_hash]
+ } else {
+ vec![¤t_hash, &node.get_hash()]
+ });This change ensures that the hash concatenation logic is consistent and avoids potential errors due to mutable state changes.
Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| let mut combined = Vec::new(); | |
| let hash = if node.is_left_sibling() { | |
| format!("{}{}", node.get_hash(), current_hash) | |
| combined.extend_from_slice(&node.get_hash()); | |
| combined.extend_from_slice(¤t_hash); | |
| concat_slices(combined) | |
| } else { | |
| format!("{}{}", current_hash, node.get_hash()) | |
| combined.extend_from_slice(¤t_hash); | |
| combined.extend_from_slice(&node.get_hash()); | |
| concat_slices(combined) | |
| let mut combined = Vec::new(); | |
| let hash = concat_slices(if node.is_left_sibling() { | |
| vec![&node.get_hash(), ¤t_hash] | |
| } else { | |
| vec![¤t_hash, &node.get_hash()] | |
| }); |
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Actionable comments posted: 3
Out of diff range and nitpick comments (1)
src/node.rs (1)
338-364: Consider deprecatinggenerate_hashin favor of using constructors that ensure proper hash calculation upon node creation.Moving hash generation to constructors can reduce the risk of hash mismatches due to manual errors in hash updates. This approach ensures that the hash is always consistent with the node's current state.
| #[cfg(feature = "std")] | ||
| #[derive(Serialize, Deserialize, Debug, Clone)] | ||
| pub struct InnerNode { | ||
| pub hash: String, | ||
| pub hash: [u8; 32], | ||
| pub is_left_sibling: bool, | ||
| pub left: Arc<Node>, | ||
| pub right: Arc<Node>, | ||
| } | ||
|
|
||
| #[cfg(not(feature = "std"))] | ||
| #[derive(Serialize, Deserialize, Debug, Clone)] | ||
| /// Represents an inner node in the indexed Merkle Tree. | ||
| /// | ||
| /// This structure is used for non-leaf nodes in the tree, containing references to its | ||
| /// left and right children along with its own hash value. There is no difference between | ||
| /// inner nodes of an indexed Merkle Tree and a classic Merkle Tree. | ||
| /// | ||
| /// Fields: | ||
| /// - `hash`: The hash of the current node, derived from its children. | ||
| /// - `is_left_sibling`: Indicates whether this node is a left child of its parent. | ||
| /// - `left`: The hash of the left child node. | ||
| /// - `right`: The hash of the right child node. | ||
| pub struct InnerNode { | ||
| pub hash: [u8; 32], | ||
| pub is_left_sibling: bool, | ||
| pub left: [u8; 32], | ||
| pub right: [u8; 32], | ||
| } |
There was a problem hiding this comment.
Consider using a type alias for [u8; 32] to improve readability and maintainability.
- pub hash: [u8; 32],
+ type Hash = [u8; 32];
+ pub hash: Hash,This change would make the code clearer and ensure type safety by distinguishing hash fields from other byte array fields.
Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| #[cfg(feature = "std")] | |
| #[derive(Serialize, Deserialize, Debug, Clone)] | |
| pub struct InnerNode { | |
| pub hash: String, | |
| pub hash: [u8; 32], | |
| pub is_left_sibling: bool, | |
| pub left: Arc<Node>, | |
| pub right: Arc<Node>, | |
| } | |
| #[cfg(not(feature = "std"))] | |
| #[derive(Serialize, Deserialize, Debug, Clone)] | |
| /// Represents an inner node in the indexed Merkle Tree. | |
| /// | |
| /// This structure is used for non-leaf nodes in the tree, containing references to its | |
| /// left and right children along with its own hash value. There is no difference between | |
| /// inner nodes of an indexed Merkle Tree and a classic Merkle Tree. | |
| /// | |
| /// Fields: | |
| /// - `hash`: The hash of the current node, derived from its children. | |
| /// - `is_left_sibling`: Indicates whether this node is a left child of its parent. | |
| /// - `left`: The hash of the left child node. | |
| /// - `right`: The hash of the right child node. | |
| pub struct InnerNode { | |
| pub hash: [u8; 32], | |
| pub is_left_sibling: bool, | |
| pub left: [u8; 32], | |
| pub right: [u8; 32], | |
| } | |
| #[cfg(feature = "std")] | |
| #[derive(Serialize, Deserialize, Debug, Clone)] | |
| pub struct InnerNode { | |
| type Hash = [u8; 32]; | |
| pub hash: Hash, | |
| pub is_left_sibling: bool, | |
| pub left: Arc<Node>, | |
| pub right: Arc<Node], | |
| } | |
| #[cfg(not(feature = "std"))] | |
| #[derive(Serialize, Deserialize, Debug, Clone)] | |
| /// Represents an inner node in the indexed Merkle Tree. | |
| /// | |
| /// This structure is used for non-leaf nodes in the tree, containing references to its | |
| /// left and right children along with its own hash value. There is no difference between | |
| /// inner nodes of an indexed Merkle Tree and a classic Merkle Tree. | |
| /// | |
| /// Fields: | |
| /// - `hash`: The hash of the current node, derived from its children. | |
| /// - `is_left_sibling`: Indicates whether this node is a left child of its parent. | |
| /// - `left`: The hash of the left child node. | |
| /// - `right`: The hash of the right child node. | |
| pub struct InnerNode { | |
| type Hash = [u8; 32]; | |
| pub hash: Hash, | |
| pub is_left_sibling: bool, | |
| pub left: [u8; 32], | |
| pub right: [u8; 32], | |
| } |
| let mut combined = Vec::new(); | ||
| combined.extend_from_slice(&left); | ||
| combined.extend_from_slice(&right); | ||
| InnerNode { | ||
| hash: sha256(&combined), | ||
| is_left_sibling: index % 2 == 0, | ||
| left, | ||
| right, | ||
| } |
There was a problem hiding this comment.
Optimize memory allocation by pre-allocating vector size in concat_slices.
- let mut combined = Vec::new();
+ let mut combined = Vec::with_capacity(64); // 32 bytes each for left and rightPre-allocating the vector to the exact required size can significantly improve performance by avoiding reallocation.
Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| let mut combined = Vec::new(); | |
| combined.extend_from_slice(&left); | |
| combined.extend_from_slice(&right); | |
| InnerNode { | |
| hash: sha256(&combined), | |
| is_left_sibling: index % 2 == 0, | |
| left, | |
| right, | |
| } | |
| let mut combined = Vec::with_capacity(64); // 32 bytes each for left and right | |
| combined.extend_from_slice(&left); | |
| combined.extend_from_slice(&right); | |
| InnerNode { | |
| hash: sha256(&combined), | |
| is_left_sibling: index % 2 == 0, | |
| left, | |
| right, | |
| } |
| pub fn new( | ||
| active: bool, | ||
| is_left: bool, | ||
| label: [u8; 32], | ||
| value: [u8; 32], | ||
| next: [u8; 32], | ||
| ) -> Self { | ||
| let mut combined = Vec::new(); | ||
| combined.extend_from_slice(&[active as u8]); | ||
| combined.extend_from_slice(&label); | ||
| combined.extend_from_slice(&value); | ||
| combined.extend_from_slice(&next); | ||
|
|
There was a problem hiding this comment.
Optimize memory allocation by pre-allocating vector size in concat_slices.
- let mut combined = Vec::new();
+ let mut combined = Vec::with_capacity(4); // Active status, label, value, nextCommittable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| pub fn new( | |
| active: bool, | |
| is_left: bool, | |
| label: [u8; 32], | |
| value: [u8; 32], | |
| next: [u8; 32], | |
| ) -> Self { | |
| let mut combined = Vec::new(); | |
| combined.extend_from_slice(&[active as u8]); | |
| combined.extend_from_slice(&label); | |
| combined.extend_from_slice(&value); | |
| combined.extend_from_slice(&next); | |
| pub fn new( | |
| active: bool, | |
| is_left: bool, | |
| label: [u8; 32], | |
| value: [u8; 32], | |
| next: [u8; 32], | |
| ) -> Self { | |
| let mut combined = Vec::with_capacity(4); // Active status, label, value, next | |
| combined.extend_from_slice(&[active as u8]); | |
| combined.extend_from_slice(&label); | |
| combined.extend_from_slice(&value); | |
| combined.extend_from_slice(&next); | |
| match self { | ||
| Node::Inner(node) => { | ||
| let hash = concat_slices(vec![&node.left.get_hash(), &node.right.get_hash()]); | ||
| node.hash = sha256(&hash); | ||
| } | ||
| Node::Leaf(leaf) => { | ||
| let hash = concat_slices(vec![ | ||
| &[leaf.active as u8], | ||
| &leaf.label, | ||
| &leaf.value, | ||
| &leaf.next, | ||
| ]); | ||
| leaf.hash = sha256(&hash); |
There was a problem hiding this comment.
Optimize memory allocation by pre-allocating vector size in concat_slices.
- let hash = concat_slices(vec![
+ let hash = concat_slices(Vec::with_capacity(4, &[Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| match self { | |
| Node::Inner(node) => { | |
| let hash = concat_slices(vec![&node.left.get_hash(), &node.right.get_hash()]); | |
| node.hash = sha256(&hash); | |
| } | |
| Node::Leaf(leaf) => { | |
| let hash = concat_slices(vec![ | |
| &[leaf.active as u8], | |
| &leaf.label, | |
| &leaf.value, | |
| &leaf.next, | |
| ]); | |
| leaf.hash = sha256(&hash); | |
| match self { | |
| Node::Inner(node) => { | |
| let hash = concat_slices(vec![&node.left.get_hash(), &node.right.get_hash()]); | |
| node.hash = sha256(&hash); | |
| } | |
| Node::Leaf(leaf) => { | |
| let hash = concat_slices(Vec::with_capacity(4, &[ | |
| &[leaf.active as u8], | |
| &leaf.label, | |
| &leaf.value, | |
| &leaf.next, | |
| ])); | |
| leaf.hash = sha256(&hash); |
| let mut combined = Vec::new(); | ||
| let hash = if node.is_left_sibling() { | ||
| format!("{}{}", node.get_hash(), current_hash) | ||
| combined.extend_from_slice(&node.get_hash()); | ||
| combined.extend_from_slice(¤t_hash); | ||
| combined | ||
| } else { | ||
| format!("{}{}", current_hash, node.get_hash()) | ||
| combined.extend_from_slice(¤t_hash); | ||
| combined.extend_from_slice(&node.get_hash()); | ||
| combined |
There was a problem hiding this comment.
Optimize the hash concatenation logic by considering pre-allocation of vector size.
- let mut combined = Vec::new();
+ let mut combined = Vec::with_capacity(2); // Current hash and node hashCommittable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| let mut combined = Vec::new(); | |
| let hash = if node.is_left_sibling() { | |
| format!("{}{}", node.get_hash(), current_hash) | |
| combined.extend_from_slice(&node.get_hash()); | |
| combined.extend_from_slice(¤t_hash); | |
| combined | |
| } else { | |
| format!("{}{}", current_hash, node.get_hash()) | |
| combined.extend_from_slice(¤t_hash); | |
| combined.extend_from_slice(&node.get_hash()); | |
| combined | |
| let mut combined = Vec::with_capacity(2); // Current hash and node hash | |
| let hash = if node.is_left_sibling() { | |
| combined.extend_from_slice(&node.get_hash()); | |
| combined.extend_from_slice(¤t_hash); | |
| combined | |
| } else { | |
| combined.extend_from_slice(¤t_hash); | |
| combined.extend_from_slice(&node.get_hash()); | |
| combined |
| let empty_hash = Node::EMPTY_HASH; | ||
| let tail = Node::TAIL; |
There was a problem hiding this comment.
Optimize memory allocation by using references instead of cloning hashes.
- let empty_hash = Node::EMPTY_HASH.clone();
- let tail = Node::TAIL.clone();
+ let empty_hash = &Node::EMPTY_HASH;
+ let tail = &Node::TAIL;Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| let empty_hash = Node::EMPTY_HASH; | |
| let tail = Node::TAIL; | |
| let empty_hash = &Node::EMPTY_HASH; | |
| let tail = &Node::TAIL; |
| .position(|k| { | ||
| // TODO: remove unwrap | ||
| let mut bytes = [0u8; 32]; | ||
| hex::decode_to_slice(k, &mut bytes).unwrap(); | ||
| bytes == l | ||
| }) |
There was a problem hiding this comment.
Refactor resort_nodes_by_input_order to handle potential errors in hex decoding without using unwrap.
- hex::decode_to_slice(k, &mut bytes).unwrap();
+ hex::decode_to_slice(k, &mut bytes).map_err(|e| MerkleTreeError::HexDecodeError(e.to_string()))?Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| .position(|k| { | |
| // TODO: remove unwrap | |
| let mut bytes = [0u8; 32]; | |
| hex::decode_to_slice(k, &mut bytes).unwrap(); | |
| bytes == l | |
| }) | |
| .position(|k| { | |
| // TODO: remove unwrap | |
| let mut bytes = [0u8; 32]; | |
| hex::decode_to_slice(k, &mut bytes).map_err(|e| MerkleTreeError::HexDecodeError(e.to_string()))? | |
| bytes == l | |
| }) |
There was a problem hiding this comment.
Actionable comments posted: 0
Out of diff range and nitpick comments (2)
src/tree.rs (2)
Line range hint
286-366: The methods inIndexedMerkleTreefor managing tree structure and generating proofs are well-implemented. However, consider adding more detailed error handling and possibly returningResultinstead ofOptionin some methods to provide clearer error information.- pub fn find_node_index(&self, node: &Node) -> Option<usize> + pub fn find_node_index(&self, node: &Node) -> Result<usize, MerkleTreeError>
[!TIP]
Codebase VerificationThe method
generate_membership_proofincludes a check to handle the edge case where the provided index is out of the valid range of the tree. This is evident from the condition:if index >= self.nodes.len() { return Err(MerkleTreeError::IndexError(index.to_string())); }This check ensures that if the index is out of bounds, the method returns an error, effectively handling this specific edge case. However, there is no explicit handling for the case when the tree is empty (i.e.,
self.nodes.len()is zero). The method assumes that there are nodes present, as it directly accessesself.nodes[current_index]without checking if the list is empty.Given this, the method does handle the out-of-bounds index case but does not explicitly handle the scenario where the tree might be empty. This could lead to a panic if the method is called on an empty tree.
Recommendation:
- Implement a check at the beginning of the method to return an appropriate error if the tree is empty. This will prevent potential runtime errors and make the function's behavior more predictable and safe in all scenarios.
if self.nodes.is_empty() { return Err(MerkleTreeError::EmptyTreeError); }This additional check will ensure that the method is robust against all mentioned edge cases.
Analysis chain
Line range hint
503-559: The methodgenerate_membership_proofis critical for verifying the presence of nodes. Ensure that the logic correctly handles edge cases, such as when the tree is empty or the index is out of bounds.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify edge case handling in `generate_membership_proof`. # Test: Search for the method usage. Expect: Proper error handling for edge cases. rg --type rust $'generate_membership_proof'Length of output: 403
Script:
#!/bin/bash # Description: Extract the implementation of `generate_membership_proof` to verify edge case handling. # Using ast-grep to find the implementation details of the method in the Rust code. ast-grep --lang rust --pattern $'pub fn generate_membership_proof($_) { $$$ }'Length of output: 81
Script:
#!/bin/bash # Description: Extract the implementation of `generate_membership_proof` using a broader search tool. # Using rg to find the implementation details of the method in the Rust code. rg --type rust -A 30 -B 2 'pub fn generate_membership_proof' src/tree.rsLength of output: 1660
| impl Proof { | ||
| pub fn prepare_for_snark(&self) -> ZkProof { | ||
| match self { | ||
| Proof::Update(update_proof) => ZkProof::Update(ZkUpdateProof { | ||
| old_proof: ZkMerkleProof { | ||
| root_hash: update_proof.old_proof.root_hash, | ||
| path: update_proof | ||
| .old_proof | ||
| .path | ||
| .iter() | ||
| .map(|node| node.get_hash()) | ||
| .collect(), | ||
| }, | ||
| new_proof: ZkMerkleProof { | ||
| root_hash: update_proof.new_proof.root_hash, | ||
| path: update_proof | ||
| .new_proof | ||
| .path | ||
| .iter() | ||
| .map(|node| node.get_hash()) | ||
| .collect(), | ||
| }, | ||
| }), | ||
| Proof::Insert(insert_proof) => { | ||
| let node_to_prove = | ||
| match insert_proof.non_membership_proof.merkle_proof.path.first() { | ||
| Some(Node::Leaf(leaf)) => leaf.clone(), | ||
| _ => panic!("First node in path is not a leaf node."), | ||
| }; | ||
| let zk_merkle_proof = ZkMerkleProof { | ||
| root_hash: insert_proof.non_membership_proof.merkle_proof.root_hash, | ||
| path: insert_proof | ||
| .non_membership_proof | ||
| .merkle_proof | ||
| .path | ||
| .iter() | ||
| .map(|node| node.get_hash()) | ||
| .collect(), | ||
| }; | ||
| return ZkProof::Insert(ZkInsertProof { | ||
| non_membership_proof: ZkNonMembershipProof { | ||
| node_to_prove, | ||
| merkle_proof: zk_merkle_proof, | ||
| closest_index: insert_proof.non_membership_proof.closest_index, | ||
| missing_node: insert_proof.non_membership_proof.missing_node.label, | ||
| }, | ||
| first_proof: ZkUpdateProof { | ||
| old_proof: ZkMerkleProof { | ||
| root_hash: insert_proof.first_proof.old_proof.root_hash, | ||
| path: insert_proof | ||
| .first_proof | ||
| .old_proof | ||
| .path | ||
| .iter() | ||
| .map(|node| node.get_hash()) | ||
| .collect(), | ||
| }, | ||
| new_proof: ZkMerkleProof { | ||
| root_hash: insert_proof.first_proof.new_proof.root_hash, | ||
| path: insert_proof | ||
| .first_proof | ||
| .new_proof | ||
| .path | ||
| .iter() | ||
| .map(|node| node.get_hash()) | ||
| .collect(), | ||
| }, | ||
| }, | ||
| second_proof: ZkUpdateProof { | ||
| old_proof: ZkMerkleProof { | ||
| root_hash: insert_proof.second_proof.old_proof.root_hash, | ||
| path: insert_proof | ||
| .second_proof | ||
| .old_proof | ||
| .path | ||
| .iter() | ||
| .map(|node| node.get_hash()) | ||
| .collect(), | ||
| }, | ||
| new_proof: ZkMerkleProof { | ||
| root_hash: insert_proof.second_proof.new_proof.root_hash, | ||
| path: insert_proof | ||
| .second_proof | ||
| .new_proof | ||
| .path | ||
| .iter() | ||
| .map(|node| node.get_hash()) | ||
| .collect(), | ||
| }, | ||
| }, | ||
| }); | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
The method prepare_for_snark efficiently converts standard proofs to zk-SNARK compatible formats. However, the use of panic! in line 204 should be replaced with proper error handling to avoid potential runtime panics.
- panic!("First node in path is not a leaf node.");
+ return Err(MerkleTreeError::InvalidNodeType("Expected a leaf node."));Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| impl Proof { | |
| pub fn prepare_for_snark(&self) -> ZkProof { | |
| match self { | |
| Proof::Update(update_proof) => ZkProof::Update(ZkUpdateProof { | |
| old_proof: ZkMerkleProof { | |
| root_hash: update_proof.old_proof.root_hash, | |
| path: update_proof | |
| .old_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| new_proof: ZkMerkleProof { | |
| root_hash: update_proof.new_proof.root_hash, | |
| path: update_proof | |
| .new_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| }), | |
| Proof::Insert(insert_proof) => { | |
| let node_to_prove = | |
| match insert_proof.non_membership_proof.merkle_proof.path.first() { | |
| Some(Node::Leaf(leaf)) => leaf.clone(), | |
| _ => panic!("First node in path is not a leaf node."), | |
| }; | |
| let zk_merkle_proof = ZkMerkleProof { | |
| root_hash: insert_proof.non_membership_proof.merkle_proof.root_hash, | |
| path: insert_proof | |
| .non_membership_proof | |
| .merkle_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }; | |
| return ZkProof::Insert(ZkInsertProof { | |
| non_membership_proof: ZkNonMembershipProof { | |
| node_to_prove, | |
| merkle_proof: zk_merkle_proof, | |
| closest_index: insert_proof.non_membership_proof.closest_index, | |
| missing_node: insert_proof.non_membership_proof.missing_node.label, | |
| }, | |
| first_proof: ZkUpdateProof { | |
| old_proof: ZkMerkleProof { | |
| root_hash: insert_proof.first_proof.old_proof.root_hash, | |
| path: insert_proof | |
| .first_proof | |
| .old_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| new_proof: ZkMerkleProof { | |
| root_hash: insert_proof.first_proof.new_proof.root_hash, | |
| path: insert_proof | |
| .first_proof | |
| .new_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| }, | |
| second_proof: ZkUpdateProof { | |
| old_proof: ZkMerkleProof { | |
| root_hash: insert_proof.second_proof.old_proof.root_hash, | |
| path: insert_proof | |
| .second_proof | |
| .old_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| new_proof: ZkMerkleProof { | |
| root_hash: insert_proof.second_proof.new_proof.root_hash, | |
| path: insert_proof | |
| .second_proof | |
| .new_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| }, | |
| }); | |
| } | |
| } | |
| } | |
| impl Proof { | |
| pub fn prepare_for_snark(&self) -> ZkProof { | |
| match self { | |
| Proof::Update(update_proof) => ZkProof::Update(ZkUpdateProof { | |
| old_proof: ZkMerkleProof { | |
| root_hash: update_proof.old_proof.root_hash, | |
| path: update_proof | |
| .old_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| new_proof: ZkMerkleProof { | |
| root_hash: update_proof.new_proof.root_hash, | |
| path: update_proof | |
| .new_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| }), | |
| Proof::Insert(insert_proof) => { | |
| let node_to_prove = | |
| match insert_proof.non_membership_proof.merkle_proof.path.first() { | |
| Some(Node::Leaf(leaf)) => leaf.clone(), | |
| _ => return Err(MerkleTreeError::InvalidNodeType("Expected a leaf node.")), | |
| }; | |
| let zk_merkle_proof = ZkMerkleProof { | |
| root_hash: insert_proof.non_membership_proof.merkle_proof.root_hash, | |
| path: insert_proof | |
| .non_membership_proof | |
| .merkle_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }; | |
| return ZkProof::Insert(ZkInsertProof { | |
| non_membership_proof: ZkNonMembershipProof { | |
| node_to_prove, | |
| merkle_proof: zk_merkle_proof, | |
| closest_index: insert_proof.non_membership_proof.closest_index, | |
| missing_node: insert_proof.non_membership_proof.missing_node.label, | |
| }, | |
| first_proof: ZkUpdateProof { | |
| old_proof: ZkMerkleProof { | |
| root_hash: insert_proof.first_proof.old_proof.root_hash, | |
| path: insert_proof | |
| .first_proof | |
| .old_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| new_proof: ZkMerkleProof { | |
| root_hash: insert_proof.first_proof.new_proof.root_hash, | |
| path: insert_proof | |
| .first_proof | |
| .new_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| }, | |
| second_proof: ZkUpdateProof { | |
| old_proof: ZkMerkleProof { | |
| root_hash: insert_proof.second_proof.old_proof.root_hash, | |
| path: insert_proof | |
| .second_proof | |
| .old_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| new_proof: ZkMerkleProof { | |
| root_hash: insert_proof.second_proof.new_proof.root_hash, | |
| path: insert_proof | |
| .second_proof | |
| .new_proof | |
| .path | |
| .iter() | |
| .map(|node| node.get_hash()) | |
| .collect(), | |
| }, | |
| }, | |
| }); | |
| } | |
| } | |
| } | |
| } |
| pub fn new(left: Node, right: Node, index: usize) -> Self { | ||
| InnerNode { | ||
| hash: sha256(&format!("{}{}", left.get_hash(), right.get_hash())), | ||
| hash: sha256(&concat_slices(vec![&left.get_hash(), &right.get_hash()])), |
There was a problem hiding this comment.
Optimize memory allocation by pre-allocating vector size in concat_slices.
- concat_slices(vec![&left.get_hash(), &right.get_hash()])
+ concat_slices(Vec::with_capacity(2, &[&left.get_hash(), &right.get_hash()]))Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| hash: sha256(&concat_slices(vec![&left.get_hash(), &right.get_hash()])), | |
| hash: sha256(&concat_slices(Vec::with_capacity(2, &[&left.get_hash(), &right.get_hash()]))), |
|
|
||
| impl ZkInnerNode { | ||
| pub fn new(left: [u8; 32], right: [u8; 32], index: usize) -> Self { | ||
| let mut combined = Vec::new(); |
There was a problem hiding this comment.
Optimize memory allocation by pre-allocating vector size in concat_slices.
- let mut combined = Vec::new();
+ let mut combined = Vec::with_capacity(64); // 32 bytes each for left and rightCommittable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| let mut combined = Vec::new(); | |
| let mut combined = Vec::with_capacity(64); // 32 bytes each for left and right |
| /// * A new leaf node with the specified properties. | ||
| pub fn new(active: bool, is_left: bool, label: String, value: String, next: String) -> Self { | ||
| let hash = format!("{}, {}, {}, {}", active, label, value, next); | ||
| pub fn new( |
There was a problem hiding this comment.
Optimize memory allocation by pre-allocating vector size in concat_slices.
- let mut combined = Vec::new();
+ let mut combined = Vec::with_capacity(4); // Active status, label, value, nextCommittable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| pub fn new( | |
| pub fn new( |
| /// For a leaf node, the hash is based on its active status, label, value, and the reference to the next node in the tree: | ||
| /// SHA256(active || label || value || next) | ||
| pub fn generate_hash(&mut self) { | ||
| match self { |
There was a problem hiding this comment.
Optimize memory allocation by pre-allocating vector size in concat_slices.
- let hash = concat_slices(vec![&node.left.get_hash(), &node.right.get_hash()]);
+ let hash = concat_slices(Vec::with_capacity(2, &[&node.left.get_hash(), &node.right.get_hash()]));Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| match self { | |
| match self { |
There was a problem hiding this comment.
Actionable comments posted: 2
Out of diff range and nitpick comments (1)
src/tree.rs (1)
644-644: Clarify the logic for handling inactive nodes during insertion.Consider adding comments to explain the logic for handling inactive nodes during the insertion process, as this is a critical part of ensuring tree integrity.
| /// This is done when first initializing the tree, as well as when nodes are updated. | ||
| fn rebuild_tree_from_leaves(&mut self) { | ||
| self.nodes.retain(|node| matches!(node, Node::Leaf(_))) | ||
| self.nodes.retain(|node| matches!(node, Node::Leaf(_))); |
There was a problem hiding this comment.
Add comprehensive tests for the rebuild_tree_from_leaves method to ensure its functionality.
Would you like me to help by generating the unit testing code or opening a GitHub issue to track this task?
| } | ||
|
|
||
| let mut proof_path: Vec<Node> = vec![]; | ||
| let mut proof_path: Vec<Node> = Vec::new(); |
There was a problem hiding this comment.
Consider pre-allocating the size of proof_path to optimize memory usage.
- let mut proof_path: Vec<Node> = Vec::new();
+ let mut proof_path: Vec<Node> = Vec::with_capacity(self.nodes.len() / 2); // Estimate based on tree depthCommittable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| let mut proof_path: Vec<Node> = Vec::new(); | |
| let mut proof_path: Vec<Node> = Vec::with_capacity(self.nodes.len() / 2); // Estimate based on tree depth |
2 participants
Changes to the data structures to byte arrays and optimisations of the proof structures for the use of Jolt zkVM
Associated deimos PR: https://github.com/deltadevsde/deimos/pull/40#issue-2276996325