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(WIP)feat/upgrade5 prover #1557

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@amoylan2 amoylan2 commented Oct 26, 2024

Purpose or design rationale of this PR

  • Upgrade to Euclid
  • Support Sp1 task

PR title

Your PR title must follow conventional commits (as we are doing squash merge for each PR), so it must start with one of the following types:

  • build: Changes that affect the build system or external dependencies (example scopes: yarn, eslint, typescript)
  • ci: Changes to our CI configuration files and scripts (example scopes: vercel, github, cypress)
  • docs: Documentation-only changes
  • feat: A new feature
  • fix: A bug fix
  • perf: A code change that improves performance
  • refactor: A code change that doesn't fix a bug, or add a feature, or improves performance
  • style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
  • test: Adding missing tests or correcting existing tests

Deployment tag versioning

Has tag in common/version.go been updated or have you added bump-version label to this PR?

  • No, this PR doesn't involve a new deployment, git tag, docker image tag
  • Yes

Breaking change label

Does this PR have the breaking-change label?

  • No, this PR is not a breaking change
  • Yes

Summary by CodeRabbit

Release Notes

  • New Features

    • Introduced EuclidHandler for managing zero-knowledge proof tasks with support for new prover types: ChunkHalo2, ChunkSp1, and ChunkAll.
    • Added prover_euclid dependency to enhance functionality.
  • Changes

    • Updated handling of prover types in various methods for increased flexibility.
    • Removed the outdated darwin module and its associated handler.
    • Updated the Rust toolchain to use a specific nightly version.
  • Bug Fixes

    • Improved error handling and logging for proof generation processes.
  • Documentation

    • Updated documentation to reflect changes in prover types and handler implementations.

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coderabbitai bot commented Oct 26, 2024

Walkthrough

The changes in this pull request involve updates to the prover package's configuration and implementation files. Key modifications include the addition of a new dependency prover_euclid in Cargo.toml, the removal of the rust-toolchain file, and the introduction of a new rust-toolchain.toml file specifying a different nightly version. The Prover struct's logic was enhanced to support additional prover types, and the darwin module was replaced with a new euclid module, which includes the EuclidHandler struct for managing proof tasks.

Changes

File Change Summary
prover/Cargo.toml Added dependency prover_euclid, removed prover_darwin.
prover/rust-toolchain Deleted file specifying the Rust toolchain version.
prover/rust-toolchain.toml Added [toolchain] section with channel = "nightly-2024-01-25".
prover/src/main.rs Added feature flag #![allow(internal_features)].
prover/src/prover.rs Updated new and fetch_task methods to use pattern matching for prover_type.
prover/src/types.rs Replaced Chunk with ChunkHalo2, added ChunkSp1 in TaskType and ProverType, updated serialization logic.
prover/src/utils.rs Updated get_task_types function to handle new ProverType variants.
prover/src/zk_circuits_handler.rs Removed darwin module, added euclid module, updated handler initialization logic.
prover/src/zk_circuits_handler/darwin.rs Deleted file containing DarwinHandler implementation and related methods.
prover/src/zk_circuits_handler/darwin_v2.rs Updated references from ProverType::Chunk to ProverType::ChunkHalo2, changed visibility of BatchTaskDetail.
prover/src/zk_circuits_handler/euclid.rs Introduced EuclidHandler struct with methods for managing proof tasks, including gen_halo2_chunk_proof, gen_batch_proof, and gen_bundle_proof.

Poem

In the meadow where circuits play,
A new handler hops in today.
With Euclid now taking the lead,
Our proofs will flourish, yes indeed!
From Chunk to Halo2, we cheer,
For every task, we hold so dear! 🐇✨


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Actionable comments posted: 12

🧹 Outside diff range and nitpick comments (8)
prover/src/types.rs (1)

62-64: Consider documenting the purpose of ChunkAll variant.

The purpose of the ChunkAll variant is not immediately clear from its name. Consider adding documentation to explain when this variant should be used.

prover/src/prover.rs (2)

32-35: LGTM! Consider extracting the ProverType match condition.

The change to use matches! macro improves readability and maintainability. The logic correctly handles initialization for all chunk-based prover types.

Consider extracting the repeated match condition into a helper function since it's used in multiple places:

impl ProverType {
    pub fn is_chunk_based(&self) -> bool {
        matches!(
            self,
            ProverType::ChunkHalo2 | ProverType::ChunkSp1 | ProverType::ChunkAll
        )
    }
}

This would simplify both this check and the similar one in fetch_task.


Line range hint 1-182: Consider documenting the prover type selection strategy.

The changes effectively support multiple prover types while maintaining a clean architecture. However, the selection strategy between different chunk-based provers (Halo2, Sp1, All) isn't immediately clear from the code.

Consider:

  1. Adding documentation explaining when each prover type should be used
  2. Creating a configuration guide for operators to understand prover selection implications
  3. Adding metrics/logging to track which prover types are being selected in production
prover/src/zk_circuits_handler/darwin_v2.rs (1)

Line range hint 324-328: Consider adding negative test cases.

While the test updates correctly reflect the ProverType changes, consider adding test cases that verify:

  1. Error handling for unsupported prover types
  2. Validation of the new ChunkHalo2 proof format
prover/src/zk_circuits_handler/euclid.rs (4)

22-23: Address TODO: Enable sp1_prover integration

There is a TODO comment indicating that sp1_prover integration needs to be enabled. Consider uncommenting and updating the import statement when ready to integrate sp1_prover.

Would you like assistance in implementing sp1_prover or opening a GitHub issue to track this task?


39-41: Address TODO: Enable sp1_prover in ChunkProver struct

The ChunkProver struct contains a commented-out field sp1_prover with a TODO comment. Consider enabling and initializing sp1_prover when appropriate.

Would you like assistance in implementing sp1_prover within the ChunkProver struct or opening a GitHub issue to track this task?


189-195: Handle potential deserialization errors in gen_batch_proof

In gen_batch_proof, the task data is deserialized without handling possible errors that may arise from invalid or malformed JSON. Although serde_json::from_str returns a Result, it might be useful to add context to the error for easier debugging.

Consider adding context to the deserialization error:

-    let batch_task_detail: BatchTaskDetail = serde_json::from_str(&task.task_data)?;
+    let batch_task_detail: BatchTaskDetail = serde_json::from_str(&task.task_data)
+        .context("Failed to deserialize batch task detail")?;

217-219: Clarify the usage of OUTPUT_DIR

The get_output_dir method returns the OUTPUT_DIR environment variable if set. It might be helpful to document or log when the output directory is used for clarity.

Consider adding a comment or log statement to indicate when the output directory is utilized.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between bc8f9db and 238d903.

⛔ Files ignored due to path filters (1)
  • prover/Cargo.lock is excluded by !**/*.lock
📒 Files selected for processing (11)
  • prover/Cargo.toml (1 hunks)
  • prover/rust-toolchain (0 hunks)
  • prover/rust-toolchain.toml (1 hunks)
  • prover/src/main.rs (1 hunks)
  • prover/src/prover.rs (2 hunks)
  • prover/src/types.rs (5 hunks)
  • prover/src/utils.rs (1 hunks)
  • prover/src/zk_circuits_handler.rs (4 hunks)
  • prover/src/zk_circuits_handler/darwin.rs (0 hunks)
  • prover/src/zk_circuits_handler/darwin_v2.rs (8 hunks)
  • prover/src/zk_circuits_handler/euclid.rs (1 hunks)
💤 Files with no reviewable changes (2)
  • prover/rust-toolchain
  • prover/src/zk_circuits_handler/darwin.rs
✅ Files skipped from review due to trivial changes (2)
  • prover/rust-toolchain.toml
  • prover/src/main.rs
🔇 Additional comments (7)
prover/src/utils.rs (1)

29-31: LGTM! The changes align with the PR objectives.

The updated match arms correctly handle the new prover types, maintaining backward compatibility while adding support for Sp1 tasks. The ChunkAll variant provides a convenient way to handle both Halo2 and Sp1 chunk tasks.

Let's verify the consistency with ProverType enum definition:

✅ Verification successful

✅ The match arms are consistent with the ProverType enum definition

The verification confirms that the match arms in utils.rs perfectly align with the ProverType enum defined in types.rs. The enum contains exactly the variants ChunkHalo2, ChunkSp1, ChunkAll, and Batch, and these are handled consistently across the codebase, including:

  • Correct serialization/deserialization in types.rs
  • Proper task type mapping in utils.rs
  • Consistent usage in circuit handlers for both Darwin and Euclid implementations
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify that ProverType enum matches these variants
# Expected: Should find the enum definition with these variants

ast-grep --pattern 'enum ProverType {
  $$$
  ChunkHalo2,
  ChunkSp1,
  ChunkAll,
  $$$
}'

Length of output: 92


Script:

#!/bin/bash
# Let's try a different approach to find the ProverType enum definition
# First, let's use ripgrep to find the enum definition
rg "enum ProverType" -A 10

# Also search for any usage of ProverType to ensure consistency
rg "ProverType::" -A 2

Length of output: 5441

prover/Cargo.toml (2)

33-33: Verify the transition strategy from Darwin to Euclid.

Since both prover_darwin_v2 and prover_euclid are present, please ensure there's a clear transition strategy and that both provers can coexist without conflicts during the migration period.

Run the following script to analyze the migration pattern:

#!/bin/bash
# Description: Analyze the migration pattern from Darwin to Euclid

# Test 1: Look for conditional compilation flags or feature gates
echo "Checking for feature gates..."
rg "#\[cfg\(feature|#\[cfg_attr" 

# Test 2: Search for migration-related code patterns
echo "Checking migration patterns..."
ast-grep --pattern 'if $_ { $$$_DARWIN$$$ } else { $$$_EUCLID$$$ }'

33-33: Consider using a tagged version instead of a feature branch.

Using a feature branch (feat/hybrid-snark-agg) for prover_euclid in production code could lead to instability if the branch is rebased or force-pushed. Consider switching to a tagged version once the feature is stable.

Run the following script to check the dependency graph and verify the coexistence of both provers:

prover/src/zk_circuits_handler.rs (1)

3-3: LGTM: Clean transition to Euclid module

The module declaration and import changes align well with the PR objective to upgrade to Euclid.

Also applies to: 13-13

prover/src/zk_circuits_handler/darwin_v2.rs (3)

Line range hint 13-21: LGTM! Good encapsulation practice.

The imports are well-organized, and reducing the visibility of BatchTaskDetail improves encapsulation since it's only used internally within this module.

Also applies to: 27-31


Line range hint 252-264: LGTM! Consistent TaskType handling.

The changes in get_vk and get_proof_data methods maintain consistency with the ProverType changes while preserving the error handling behavior.

Also applies to: 270-274


69-71: Verify ProverType changes across the codebase.

The renaming from Chunk to ChunkHalo2 looks correct. However, we should verify that all usages of this enum have been updated consistently.

Also applies to: 84-94

Comment on lines +83 to +86
ProverType::ChunkHalo2 => 1,
ProverType::Batch => 2,
ProverType::ChunkSp1 => 3,
ProverType::ChunkAll => 4,
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🛠️ Refactor suggestion

Consider using a const array to define variant mappings.

The serialization values are duplicated across multiple methods. Consider defining them once to improve maintainability:

impl ProverType {
    const VARIANT_MAPPINGS: [(ProverType, u8); 4] = [
        (ProverType::ChunkHalo2, 1),
        (ProverType::Batch, 2),
        (ProverType::ChunkSp1, 3),
        (ProverType::ChunkAll, 4),
    ];

    fn to_u8(self) -> u8 {
        Self::VARIANT_MAPPINGS
            .iter()
            .find(|(variant, _)| *variant == self)
            .map(|(_, value)| *value)
            .unwrap()
    }
}

Also applies to: 97-100

Comment on lines +71 to 77
1 => ProverType::ChunkHalo2,
2 => ProverType::Batch,
3 => ProverType::ChunkSp1,
4 => ProverType::ChunkAll,
_ => {
panic!("invalid prover_type")
}
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🛠️ Refactor suggestion

Consider returning Result instead of panicking.

The from_u8 method currently panics on invalid input. Consider returning a Result type instead, which would allow callers to handle invalid values gracefully:

-    fn from_u8(v: u8) -> Self {
+    fn from_u8(v: u8) -> Result<Self, &'static str> {
         match v {
-            1 => ProverType::ChunkHalo2,
-            2 => ProverType::Batch,
-            3 => ProverType::ChunkSp1,
-            4 => ProverType::ChunkAll,
-            _ => {
-                panic!("invalid prover_type")
-            }
+            1 => Ok(ProverType::ChunkHalo2),
+            2 => Ok(ProverType::Batch),
+            3 => Ok(ProverType::ChunkSp1),
+            4 => Ok(ProverType::ChunkAll),
+            _ => Err("invalid prover_type")
         }
     }
📝 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. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
1 => ProverType::ChunkHalo2,
2 => ProverType::Batch,
3 => ProverType::ChunkSp1,
4 => ProverType::ChunkAll,
_ => {
panic!("invalid prover_type")
}
match v {
1 => Ok(ProverType::ChunkHalo2),
2 => Ok(ProverType::Batch),
3 => Ok(ProverType::ChunkSp1),
4 => Ok(ProverType::ChunkAll),
_ => Err("invalid prover_type")
}

Comment on lines +11 to +12
ChunkHalo2,
ChunkSp1,
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💡 Codebase verification

Update required: Several files still use the old TaskType::Chunk variant

The verification has found multiple files that need to be updated to use the new ChunkHalo2 and ChunkSp1 variants instead of the old Chunk variant:

  • prover/src/zk_circuits_handler/darwin_v2.rs: Lines containing chunk_vk = chunk_handler.get_vk(TaskType::Chunk) and check_vk(TaskType::Chunk, chunk_vk, ...)
  • common/libzkp/impl/src/lib.rs: Uses TaskType::Chunk in proof verification
  • common/libzkp/impl/src/verifier/darwin.rs and darwin_v2.rs: Match arms using TaskType::Chunk

These references need to be updated to use either TaskType::ChunkHalo2 or TaskType::ChunkSp1 based on the prover type being used. The changes are not just simple renames but require determining the correct variant to use in each context.

🔗 Analysis chain

Verify the impact of TaskType enum changes.

The renaming of Chunk to ChunkHalo2 and addition of ChunkSp1 could impact external systems that depend on these values. Please ensure all consumers are updated accordingly.

Let's verify the usage of these enum variants:

Also applies to: 20-23, 36-39


Update remaining references to TaskType::Chunk to use the new variants

The verification reveals several files still using the old TaskType::Chunk variant that need to be updated:

  • prover/src/zk_circuits_handler/darwin_v2.rs: Uses TaskType::Chunk in verification logic
  • common/libzkp/impl/src/lib.rs: Uses TaskType::Chunk in proof verification functions
  • common/libzkp/impl/src/verifier/darwin.rs and darwin_v2.rs: Uses TaskType::Chunk in match arms

Let's verify if these are the only instances and check their context:

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for any remaining references to the old Chunk variant
rg -l "TaskType::Chunk"

# Search for places where TaskType is used to ensure they handle the new ChunkSp1 variant
rg -A 5 "TaskType::"

Length of output: 11203


Script:

#!/bin/bash
# Show the context around TaskType::Chunk usage
rg -B 3 -A 3 "TaskType::Chunk"

# Check if there are any other enum variants we might have missed
ast-grep --pattern 'enum TaskType {
  $$$
}'

Length of output: 7946

Comment on lines +79 to +82
if matches!(
self.config.prover_type,
ProverType::ChunkHalo2 | ProverType::ChunkSp1 | ProverType::ChunkAll
) {
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💡 Codebase verification

Error handling needs improvement in task fetching

The verification revealed some concerns in the error handling:

  • The fetch_task result is unwrapped in task_processor.rs without proper error context
  • The error handling in the task fetching logic could be more robust, especially for the new prover types

Key locations that need attention:

  • prover/src/task_processor.rs: Replace fetch_result.unwrap() with proper error handling
  • prover/src/prover.rs: Consider adding more specific error types for the new prover type cases
🔗 Analysis chain

LGTM! Verify error handling for edge cases.

The task fetching logic correctly handles the new prover types and includes appropriate error handling.

Let's verify the error handling paths are tested:

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for tests covering error cases in task fetching
rg -A 5 "fetch_task.*Error|test.*fetch_task" prover/src/

# Look for potential panic scenarios in error paths
ast-grep --pattern 'unwrap()' 

Length of output: 90


Script:

#!/bin/bash
# Search for tests covering task fetching with more context
rg -A 10 "fetch_task" prover/src/

# Look for error handling in task fetching implementation
rg -A 10 "fn fetch_task" prover/src/

# Look for unwrap calls specifically in prover.rs
rg "unwrap\(\)" prover/src/prover.rs

Length of output: 2325

};
let degrees: Vec<u32> = get_degrees(&prover_types_set, |prover_type| match prover_type {
ProverType::ChunkHalo2 | ProverType::ChunkAll => ZKEVM_DEGREES.clone(),
ProverType::ChunkSp1 => ZKEVM_DEGREES.clone(), // TODO(rohit)
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⚠️ Potential issue

Clarify or resolve TODO comment for ProverType::ChunkSp1 degrees

There's a TODO comment // TODO(rohit) indicating that the degrees for ProverType::ChunkSp1 may need adjustment. Ensure that the correct degrees are used for ChunkSp1 and update the code accordingly.

Would you like assistance in determining the appropriate degrees for ProverType::ChunkSp1 or opening a GitHub issue to track this task?

Comment on lines +146 to +147
unreachable!("please check errors in proof_type logic")
}
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🛠️ Refactor suggestion

⚠️ Potential issue

Avoid using unreachable!() for error handling

Using unreachable!() can cause a panic if this code path is ever reached due to logic errors. Consider returning a proper error using bail!() or another error handling mechanism to provide better error reporting.

Apply this diff to replace unreachable!() with an error return:

-        unreachable!("please check errors in proof_type logic")
+        bail!("No suitable chunk prover found; please check the prover type logic")
📝 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. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
unreachable!("please check errors in proof_type logic")
}
bail!("No suitable chunk prover found; please check the prover type logic")
}

Comment on lines +308 to +309
_ => unreachable!(),
}
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🛠️ Refactor suggestion

⚠️ Potential issue

Handle unexpected TaskType variants instead of using unreachable!()

Using unreachable!() may lead to panics if new TaskType variants are added in the future. Consider returning a clear error message to improve maintainability.

Apply this diff to return an error:

-            _ => unreachable!(),
+            other => bail!("Unsupported task type: {:?}", other),
📝 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. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
_ => unreachable!(),
}
other => bail!("Unsupported task type: {:?}", other),
}

.as_ref()
.and_then(|p| p.borrow().get_vk())
}),
TaskType::ChunkSp1 => unimplemented!(),
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🛠️ Refactor suggestion

⚠️ Potential issue

Avoid using unimplemented!() in get_vk method

Using unimplemented!() for TaskType::ChunkSp1 can cause a panic if this variant is encountered. Consider handling this case appropriately by returning None or an error message.

Apply this diff to handle the unsupported task type:

-            TaskType::ChunkSp1 => unimplemented!(),
+            TaskType::ChunkSp1 => {
+                // Return None or handle accordingly
+                None
+            },

Committable suggestion was skipped due to low confidence.

Comment on lines 155 to 158
fn gen_sp1_chunk_proof(&self, task: &crate::types::Task) -> Result<String> {
let chunk_trace = self.gen_chunk_traces(task)?;
todo!()
}
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⚠️ Potential issue

Implement gen_sp1_chunk_proof or handle unimplemented function appropriately

The function gen_sp1_chunk_proof contains a todo!() macro, which will cause a panic if invoked. This may lead to runtime errors if TaskType::ChunkSp1 tasks are processed. Consider implementing this function or returning an appropriate error if ChunkSp1 is not yet supported.

Would you like assistance in implementing gen_sp1_chunk_proof or updating the code to handle unsupported task types? Alternatively, consider returning an error to prevent panics.

Apply this diff to return an error instead of panicking:

-    todo!()
+    bail!("SP1 chunk proof generation is not yet implemented")
📝 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. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
fn gen_sp1_chunk_proof(&self, task: &crate::types::Task) -> Result<String> {
let chunk_trace = self.gen_chunk_traces(task)?;
todo!()
}
fn gen_sp1_chunk_proof(&self, task: &crate::types::Task) -> Result<String> {
let chunk_trace = self.gen_chunk_traces(task)?;
bail!("SP1 chunk proof generation is not yet implemented")
}

Comment on lines +226 to +277
fn get_sorted_traces_by_hashes(&self, block_hashes: &[CommonHash]) -> Result<Vec<BlockTrace>> {
if block_hashes.is_empty() {
log::error!("[prover] failed to get sorted traces: block_hashes are empty");
bail!("block_hashes are empty")
}

let mut block_traces = Vec::new();
for hash in block_hashes.iter() {
let trace = self
.geth_client
.as_ref()
.unwrap()
.borrow_mut()
.get_block_trace_by_hash(hash)?;
block_traces.push(trace);
}

block_traces.sort_by(|a, b| {
if get_block_number(a).is_none() {
Ordering::Less
} else if get_block_number(b).is_none() {
Ordering::Greater
} else {
get_block_number(a)
.unwrap()
.cmp(&get_block_number(b).unwrap())
}
});

let block_numbers: Vec<u64> = block_traces
.iter()
.map(|trace| get_block_number(trace).unwrap_or(0))
.collect();
let mut i = 0;
while i < block_numbers.len() - 1 {
if block_numbers[i] + 1 != block_numbers[i + 1] {
log::error!(
"[prover] block numbers are not continuous, got {} and {}",
block_numbers[i],
block_numbers[i + 1]
);
bail!(
"block numbers are not continuous, got {} and {}",
block_numbers[i],
block_numbers[i + 1]
)
}
i += 1;
}

Ok(block_traces)
}
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🛠️ Refactor suggestion

Improve error handling and logging in get_sorted_traces_by_hashes

The method get_sorted_traces_by_hashes could benefit from enhanced error handling and logging:

  • If get_block_number returns None, it defaults to 0 in block_numbers. This may cause unexpected behavior in sorting and validation.
  • The while loop uses manual indexing, which can be more idiomatically handled using iterator methods.

Consider refactoring the code for clarity and robustness:

-    let block_numbers: Vec<u64> = block_traces
-        .iter()
-        .map(|trace| get_block_number(trace).unwrap_or(0))
-        .collect();
-    let mut i = 0;
-    while i < block_numbers.len() - 1 {
-        if block_numbers[i] + 1 != block_numbers[i + 1] {
+    let block_numbers: Vec<u64> = block_traces
+        .iter()
+        .map(|trace| get_block_number(trace))
+        .collect::<Option<Vec<_>>>()
+        .ok_or_else(|| anyhow!("Failed to get block numbers from traces"))?;
+
+    for window in block_numbers.windows(2) {
+        if window[0] + 1 != window[1] {
             log::error!(
                 "[prover] block numbers are not continuous, got {} and {}",
-                block_numbers[i],
-                block_numbers[i + 1]
+                window[0],
+                window[1]
             );
             bail!(
                 "block numbers are not continuous, got {} and {}",
-                block_numbers[i],
-                block_numbers[i + 1]
+                window[0],
+                window[1]
             )
         }
-        i += 1;
     }

This change:

  • Ensures that all block numbers are present and valid.
  • Uses iterator methods for better readability.
  • Eliminates manual indexing.
📝 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. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
fn get_sorted_traces_by_hashes(&self, block_hashes: &[CommonHash]) -> Result<Vec<BlockTrace>> {
if block_hashes.is_empty() {
log::error!("[prover] failed to get sorted traces: block_hashes are empty");
bail!("block_hashes are empty")
}
let mut block_traces = Vec::new();
for hash in block_hashes.iter() {
let trace = self
.geth_client
.as_ref()
.unwrap()
.borrow_mut()
.get_block_trace_by_hash(hash)?;
block_traces.push(trace);
}
block_traces.sort_by(|a, b| {
if get_block_number(a).is_none() {
Ordering::Less
} else if get_block_number(b).is_none() {
Ordering::Greater
} else {
get_block_number(a)
.unwrap()
.cmp(&get_block_number(b).unwrap())
}
});
let block_numbers: Vec<u64> = block_traces
.iter()
.map(|trace| get_block_number(trace).unwrap_or(0))
.collect();
let mut i = 0;
while i < block_numbers.len() - 1 {
if block_numbers[i] + 1 != block_numbers[i + 1] {
log::error!(
"[prover] block numbers are not continuous, got {} and {}",
block_numbers[i],
block_numbers[i + 1]
);
bail!(
"block numbers are not continuous, got {} and {}",
block_numbers[i],
block_numbers[i + 1]
)
}
i += 1;
}
Ok(block_traces)
}
fn get_sorted_traces_by_hashes(&self, block_hashes: &[CommonHash]) -> Result<Vec<BlockTrace>> {
if block_hashes.is_empty() {
log::error!("[prover] failed to get sorted traces: block_hashes are empty");
bail!("block_hashes are empty")
}
let mut block_traces = Vec::new();
for hash in block_hashes.iter() {
let trace = self
.geth_client
.as_ref()
.unwrap()
.borrow_mut()
.get_block_trace_by_hash(hash)?;
block_traces.push(trace);
}
block_traces.sort_by(|a, b| {
if get_block_number(a).is_none() {
Ordering::Less
} else if get_block_number(b).is_none() {
Ordering::Greater
} else {
get_block_number(a)
.unwrap()
.cmp(&get_block_number(b).unwrap())
}
});
let block_numbers: Vec<u64> = block_traces
.iter()
.map(|trace| get_block_number(trace))
.collect::<Option<Vec<_>>>()
.ok_or_else(|| anyhow!("Failed to get block numbers from traces"))?;
for window in block_numbers.windows(2) {
if window[0] + 1 != window[1] {
log::error!(
"[prover] block numbers are not continuous, got {} and {}",
window[0],
window[1]
);
bail!(
"block numbers are not continuous, got {} and {}",
window[0],
window[1]
)
}
}
Ok(block_traces)
}

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Actionable comments posted: 3

🧹 Outside diff range and nitpick comments (4)
prover/src/zk_circuits_handler.rs (1)

64-67: Document the dual-handler migration strategy.

The code maintains two different handlers:

  • DarwinV2Handler for low version circuits
  • EuclidHandler for high version circuits

Consider adding documentation to explain:

  • The criteria for handler selection based on circuit versions
  • Any behavioral differences between handlers
  • The migration timeline and deprecation plans for DarwinV2Handler

Also applies to: 87-91

prover/src/zk_circuits_handler/darwin_v2.rs (1)

Line range hint 252-274: Consider handling all TaskType variants explicitly.

The match expressions use an unreachable arm (_ => unreachable!()), which could mask potential new TaskType variants. Consider either:

  1. Explicitly listing all possible variants, or
  2. Providing a more descriptive error message in the unreachable arm.
     fn get_vk(&self, task_type: TaskType) -> Option<Vec<u8>> {
         match task_type {
             TaskType::ChunkHalo2 => self
                 .chunk_prover
                 .as_ref()
                 .and_then(|prover| prover.borrow().get_vk()),
             TaskType::Batch => self
                 .batch_prover
                 .as_ref()
                 .and_then(|prover| prover.borrow().get_batch_vk()),
             TaskType::Bundle => self
                 .batch_prover
                 .as_ref()
                 .and_then(|prover| prover.borrow().get_bundle_vk()),
-            _ => unreachable!(),
+            TaskType::Undefined => None,
         }
     }
prover/src/zk_circuits_handler/euclid.rs (2)

47-53: Add documentation comments to EuclidHandler struct

Adding documentation comments (///) to the EuclidHandler struct and its fields can improve code maintainability and readability for other developers interacting with this code.

Example:

/// `EuclidHandler` manages different types of provers for proof generation.
#[derive(Default)]
pub struct EuclidHandler {
    /// Prover for chunk tasks.
    chunk_prover: Option<ChunkProver>,
    /// Prover for batch tasks.
    batch_prover: Option<RefCell<BatchProver<'static>>>,
    /// Client to interact with Geth for fetching block traces.
    geth_client: Option<Rc<RefCell<GethClient>>>,
}

217-219: Simplify get_output_dir method by inlining

The method get_output_dir simply returns OUTPUT_DIR.as_deref(). Consider inlining this method or making OUTPUT_DIR directly accessible if there's no additional logic required.

Alternatively, if you anticipate adding more logic to this method in the future, you can leave it as is.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 238d903 and df6f687.

📒 Files selected for processing (4)
  • prover/Cargo.toml (1 hunks)
  • prover/src/zk_circuits_handler.rs (4 hunks)
  • prover/src/zk_circuits_handler/darwin_v2.rs (7 hunks)
  • prover/src/zk_circuits_handler/euclid.rs (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • prover/Cargo.toml
🔇 Additional comments (10)
prover/src/zk_circuits_handler.rs (1)

3-3: LGTM: Clean module organization for Euclid integration.

The module declarations and imports are properly organized for the transition from Darwin to Euclid prover.

Also applies to: 13-13

prover/src/zk_circuits_handler/darwin_v2.rs (3)

Line range hint 324-329: LGTM! Test changes are consistent with the type renaming.

The test has been properly updated to use ProverType::ChunkHalo2 instead of ProverType::Chunk, maintaining consistency with the type changes.


69-71: Verify consistent renaming of ProverType::Chunk across the codebase.

The prover type has been renamed from Chunk to ChunkHalo2. While the changes in this file are consistent, we should verify this renaming across the entire codebase to ensure no references to the old name remain.

Also applies to: 84-94

✅ Verification successful

Based on the search results, I can generate the final response as we have comprehensive information about the ProverType usage across the codebase.

The codebase is already consistently using ProverType::ChunkHalo2

The search results show that there are no remaining references to ProverType::Chunk. Instead, the codebase consistently uses an expanded set of prover types:

  • ProverType::ChunkHalo2
  • ProverType::ChunkSp1
  • ProverType::ChunkAll
  • ProverType::Batch

The changes in the reviewed file are part of a broader, already completed refactoring that introduced multiple chunk prover variants. All relevant files (types.rs, utils.rs, prover.rs, and zk_circuits handlers) are consistently using the new prover type names.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for any remaining references to ProverType::Chunk
rg --type rust "ProverType::Chunk" -B 2 -A 2

# Search for new references to ProverType::ChunkHalo2
rg --type rust "ProverType::ChunkHalo2" -B 2 -A 2

Length of output: 10269


Line range hint 27-31: Verify the impact of BatchTaskDetail visibility change.

The struct's visibility has been reduced from pub to private. While this change follows Rust's principle of minimal exposure, we should verify that this doesn't break any external dependencies.

✅ Verification successful

Let me generate another script to specifically search for BatchTaskDetail usage since the previous script's output was not relevant to our verification.


Visibility change of BatchTaskDetail is safe

The struct BatchTaskDetail is only used internally within the same module (darwin_v2.rs) and has a parallel private implementation in euclid.rs. The visibility change from pub to private aligns with Rust's principle of minimal exposure and doesn't impact any external dependencies.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for any external usage of BatchTaskDetail
rg --type rust "BatchTaskDetail" -B 2 -A 2

Length of output: 10269


Script:

#!/bin/bash
# Search for any external usage of BatchTaskDetail
rg --type rust "BatchTaskDetail" -B 2 -A 2

Length of output: 3430

prover/src/zk_circuits_handler/euclid.rs (6)

73-73: Confirm the degrees for ProverType::ChunkSp1

The ProverType::ChunkSp1 is assigned ZKEVM_DEGREES, and there is a // TODO(rohit) comment indicating that this may need adjustment. Ensure that the correct degree parameters are used for ChunkSp1 to prevent potential issues during proof generation.

Do you need help determining the appropriate degrees for ProverType::ChunkSp1 or opening a GitHub issue to track this?


308-309: 🛠️ Refactor suggestion

⚠️ Potential issue

Handle unexpected TaskType variants instead of using unreachable!()

Using unreachable!() may lead to panics if new TaskType variants are added in the future. Consider returning a clear error message to improve maintainability.

Apply this diff to return an error:

-            _ => unreachable!(),
+            other => bail!("Unsupported task type: {:?}", other),

Likely invalid or redundant comment.


289-289: 🛠️ Refactor suggestion

⚠️ Potential issue

Avoid using unimplemented!() in get_vk method

Using unimplemented!() for TaskType::ChunkSp1 can cause a panic if this variant is encountered. Consider handling this case appropriately by returning None or an error message.

Apply this diff to handle the unsupported task type:

-                TaskType::ChunkSp1 => unimplemented!(),
+                TaskType::ChunkSp1 => {
+                    // Return None or handle accordingly
+                    None
+                },

Likely invalid or redundant comment.


155-158: ⚠️ Potential issue

Handle unimplemented gen_sp1_chunk_proof function appropriately

The gen_sp1_chunk_proof function contains a todo!() macro, which will cause a panic if invoked. This may lead to runtime errors if TaskType::ChunkSp1 tasks are processed. Consider implementing this function or returning an appropriate error if ChunkSp1 is not yet supported.

Would you like assistance in implementing gen_sp1_chunk_proof or updating the code to handle unsupported task types?

Apply this diff to return an error instead of panicking:

-            todo!()
+            bail!("SP1 chunk proof generation is not yet implemented")

Likely invalid or redundant comment.


146-147: 🛠️ Refactor suggestion

⚠️ Potential issue

Avoid using unreachable!() for error handling

Using unreachable!() can cause a panic if this code path is ever reached due to logic errors. Consider returning a proper error using bail!() or another error handling mechanism to provide better error reporting.

Apply this diff to replace unreachable!() with an error return:

-            unreachable!("please check errors in proof_type logic")
+            bail!("No suitable chunk prover found; please check the prover type logic")

Likely invalid or redundant comment.


226-277: 🛠️ Refactor suggestion

Improve error handling and logic in get_sorted_traces_by_hashes

The method get_sorted_traces_by_hashes can be improved for better error handling and code clarity:

  • Handling None values: Currently, if get_block_number returns None, it defaults to 0, which may not reflect the real situation and could lead to incorrect sorting or validations.
  • Using iterator methods: Instead of manually indexing with a while loop, you can use iterator methods for cleaner and more idiomatic code.

Apply this diff to enhance the method:

         let block_numbers: Vec<u64> = block_traces
             .iter()
-            .map(|trace| get_block_number(trace).unwrap_or(0))
+            .map(|trace| get_block_number(trace))
+            .collect::<Option<Vec<_>>>()
+            .ok_or_else(|| anyhow!("Failed to get block numbers from traces"))?;
 
-        let mut i = 0;
-        while i < block_numbers.len() - 1 {
-            if block_numbers[i] + 1 != block_numbers[i + 1] {
+        for window in block_numbers.windows(2) {
+            if window[0] + 1 != window[1] {
                 log::error!(
                     "[prover] block numbers are not continuous, got {} and {}",
-                    block_numbers[i],
-                    block_numbers[i + 1]
+                    window[0],
+                    window[1]
                 );
                 bail!(
                     "block numbers are not continuous, got {} and {}",
-                    block_numbers[i],
-                    block_numbers[i + 1]
+                    window[0],
+                    window[1]
                 )
             }
-            i += 1;
         }

This refactoring:

  • Ensures all block numbers are valid by collecting into an Option<Vec<_>> and handling the None case.
  • Uses windows(2) to iterate over pairs of block numbers without manual indexing.
  • Enhances code readability and reliability.

Likely invalid or redundant comment.

Comment on lines +64 to 67
DarwinV2Handler::new(
prover_type,
&config.low_version_circuit.params_path,
&config.low_version_circuit.assets_path,
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💡 Codebase verification

Implementation for Sp1 task type is incomplete

The codebase shows several issues with the Sp1 task type implementation:

  • gen_sp1_chunk_proof is not implemented (contains todo!())
  • ChunkProver struct has commented out Sp1 prover field
  • The Sp1 prover initialization is commented out with TODO

This indicates that while the task type is defined, its actual implementation is missing or incomplete.

🔗 Analysis chain

Verify task type handling in both handlers.

Since this PR aims to support Sp1 tasks, let's verify the implementation of task type handling in both handlers.

Also applies to: 87-91


Let me gather more information about the implementation of task handlers, particularly focusing on the Sp1 chunk proof generation.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify task type handling in both handlers

# Test 1: Search for TaskType handling in both handlers
echo "Searching for TaskType handling..."
rg -A 5 "match.*TaskType" prover/src/

# Test 2: Search for Sp1 specific handling
echo "Searching for Sp1 task handling..."
rg -A 5 "ChunkSp1" prover/src/

Length of output: 5091


Script:

#!/bin/bash
# Search for Sp1 chunk proof generation implementation
echo "Searching for Sp1 chunk proof generation..."
rg -A 10 "fn gen_sp1_chunk_proof" prover/src/

# Search for ChunkProver struct implementation
echo "Searching for ChunkProver implementation..."
rg -A 10 "struct ChunkProver" prover/src/

Length of output: 1968

Comment on lines +37 to +41
struct ChunkProver {
halo2_prover: Option<RefCell<Halo2Prover<'static>>>,
// TODO: enable_post_sp1_prover
// sp1_prover: Option<RefCell<Sp1Prover>>,
}
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⚠️ Potential issue

Consider removing commented code and addressing TODO

The ChunkProver struct contains commented-out code and a TODO comment regarding enabling sp1_prover. Leaving commented code can reduce code readability and may lead to confusion. Consider removing the commented lines or implementing the sp1_prover functionality if it's required.

Would you like assistance in implementing the sp1_prover field or opening a GitHub issue to track this task?

Comment on lines +88 to +111
handler.chunk_prover = Some(ChunkProver {
halo2_prover: Some(RefCell::new(Halo2Prover::from_params_and_assets(
params_map, assets_dir,
))),
// TODO: enable_post_sp1_prover
// sp1_prover: None,
});
}
ProverType::ChunkSp1 => {
handler.chunk_prover = Some(ChunkProver {
halo2_prover: None,
// TODO: enable_post_sp1_prover
// sp1_prover: Some(RefCell::new(Sp1Prover::new())),
});
}
ProverType::ChunkAll => {
handler.chunk_prover = Some(ChunkProver {
halo2_prover: Some(RefCell::new(Halo2Prover::from_params_and_assets(
params_map, assets_dir,
))),
// TODO: enable_post_sp1_prover
// sp1_prover: Some(RefCell::new(Sp1Prover::new())),
});
}
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⚠️ Potential issue

Enable sp1_prover in ChunkProver initialization

In the initialization of ChunkProver for ProverType::ChunkSp1 and ProverType::ChunkAll, the sp1_prover field is commented out with associated TODO comments. To support these prover types fully, consider enabling and initializing sp1_prover where applicable.

Would you like assistance in implementing sp1_prover for these ProverType variants or opening a GitHub issue to track this task?

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