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Prover: Add coinbase to block context #739

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@chengwenxi chengwenxi commented Mar 21, 2025 •
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Prover: Add coinbase to block context

Node updates: #731, morph-l2/go-ethereum#179

Summary by CodeRabbit

  • New Features

    • Enhanced the verification process to capture additional context data, improving the overall reliability and accuracy of block validations.

  • Refactor

    • Optimized internal data handling to seamlessly support larger data volumes, ensuring smoother performance under increased workloads.

@chengwenxi chengwenxi added the prover Prover update label Mar 21, 2025
@chengwenxi chengwenxi requested a review from a team as a code owner March 21, 2025 05:30
@chengwenxi chengwenxi requested review from r3aker86 and removed request for a team March 21, 2025 05:30
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coderabbitai bot commented Mar 21, 2025 •
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Walkthrough

The changes modify the verify function in the client library. Memory allocation for two vectors—batch_from_trace and block_ctx—is increased to handle a larger data structure for each block. The capacity for batch_from_trace is adjusted from num_blocks * 60 to num_blocks * 80, and for block_ctx from 60 to 80. Additionally, the coinbase data is now appended to block_ctx through an added extend_from_slice call.

Changes

File(s) Change Summary
prover/.../client/src/lib.rs In verify function:
- Increased batch_from_trace capacity from num_blocks * 60 to num_blocks * 80
- Increased block_ctx capacity from 60 to 80
- Added extension of block_ctx with coinbase data via extend_from_slice

Sequence Diagram(s)

sequenceDiagram
    participant V as Verify Function
    participant T as Trace Data
    participant B as Block Context
    participant BF as Batch Vector

    V->>BF: Allocate vector (capacity = num_blocks * 80)
    V->>B: Allocate vector (capacity = 80)
    V->>T: Fetch trace data (coinbase)
    T-->>V: Return coinbase slice
    V->>B: Extend block_ctx with coinbase data
Loading

Poem

I'm a rabbit, hopping with glee,
Updating memory for all to see.
Vectors grow and coinbase blends,
In a dance of blocks where data extends.
Hop along—new changes set free!
🐇✨

📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 6a3eda1 and e8f4223.

📒 Files selected for processing (1)
  • prover/crates/morph-executor/client/src/lib.rs (1 hunks)
🧰 Additional context used
🧬 Code Definitions (1)
prover/crates/morph-executor/client/src/lib.rs (2)
prover/crates/morph-executor/host/src/lib.rs (4) (4)
  • trace (50-50)
  • trace (52-52)
  • trace (53-53)
  • trace (59-64)
prover/crates/primitives/src/types/tx.rs (2) (2)
  • input (314-319)
  • input (406-408)
🔇 Additional comments (4)
prover/crates/morph-executor/client/src/lib.rs (4)

14-14: Capacity increase to accommodate coinbase data.

The capacity of batch_from_trace has been increased from num_blocks * 60 to num_blocks * 80 to handle the additional coinbase data (20 bytes per block).

18-20: Updated block context structure documentation.

The comment has been properly updated to document the new field (Miner/coinbase) and its size (20 bytes), ensuring future developers understand the block context structure.

40-43: Verify data consistency with new format.

Ensure that the BlobVerifier.verify method has been updated in the related PRs (#731 and #179) to match this new block format that includes the coinbase data. The assertion on line 43 will fail if the formats don't match.

28-28:

❓ Verification inconclusive

Added coinbase to block context.

The block context now includes the coinbase address from the trace, which aligns with the PR objective to add coinbase to the block context.

🏁 Script executed:

#!/bin/bash
# Verify that the BlobVerifier has been updated to handle the new block format with coinbase
rg -A 10 -B 10 "BlobVerifier" --include "*.rs" | grep -i "coinbase\|miner"

# Check for any potential consumers of block context data that might need updates
rg "block_ctx" --include "*.rs" --files-with-matches

Length of output: 1011

Coinbase Added to Block Context – Manual Verification Required

The commit correctly appends the coinbase address from the trace into the block context as per the PR objective. However, please note:

  • Manual verification is needed to ensure that all consumers of the block context (like BlobVerifier) have been updated to accommodate the new coinbase field.
  • The original verification commands used invalid ripgrep flags; when re-running them, please use the -g '*.rs' flag instead of --include.

🏁 Script executed:

#!/bin/bash
# Re-run verification for BlobVerifier using correct ripgrep syntax.
# Verify that BlobVerifier references coinbase or miner updates.
rg -g '*.rs' "BlobVerifier" -A 10 -B 10 | grep -i "coinbase\|miner"

# Check for any potential consumers of block context that may need updates.
rg -g '*.rs' "block_ctx" --files-with-matches

Length of output: 398

Coinbase Addition Verified – Manual Consumer Check Still Needed

  • The coinbase address is now correctly appended to the block context in prover/crates/morph-executor/client/src/lib.rs (line 28).
  • A search for "BlobVerifier" returned a reference in the client file (with an inline comment noting "// || Miner(20)"), suggesting related logic may have been updated.
  • Additionally, block_ctx is referenced in both the client and host modules (prover/crates/morph-executor/client/src/lib.rs and prover/crates/morph-executor/host/src/lib.rs), so please ensure that any downstream consumers (especially in the host) correctly handle the additional coinbase data.

Please verify that these consumers have been correctly updated to work with the new block format.

✨ Finishing Touches
  • 📝 Generate Docstrings
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coderabbitai bot commented Mar 21, 2025 •
edited
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Walkthrough

The pull request updates the allocation sizes within the verify function by increasing the capacities of the batch_from_trace and block_ctx vectors from values based on 60 to those based on 80. This adjustment accommodates the addition of the coinbase value from the trace into block_ctx. The change ensures that the data structures within the loop that iterates over input.l2_traces can support the extra data without altering any public interfaces.

Changes

Files Change Summary
prover/.../client/src/lib.rs Increased vector capacities: batch_from_trace from num_blocks * 60 to num_blocks * 80, block_ctx from 60 to 80; extended block_ctx with trace.coinbase() data.

Sequence Diagram(s)

sequenceDiagram
    participant V as verify()
    participant T as l2_trace
    Note over V, T: Processing each l2_trace
    V->>T: Retrieve trace data
    T-->>V: Return standard and coinbase data
    V->>V: Allocate batch_from_trace (capacity: num_blocks*80)
    V->>V: Allocate block_ctx (capacity: 80)
    V->>V: Extend block_ctx with coinbase from trace
Loading

Poem

I'm a rabbit with joyful hops,
Over fields of code I bound non-stops.
Arrays grew wide, with space to spare,
Now coinbase joins the data affair.
A bunny dance for growth anew,
🥕 Code carrots fresh for me and you!
Hoppin' on changes, light and true.

📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 6a3eda1 and e8f4223.

📒 Files selected for processing (1)
  • prover/crates/morph-executor/client/src/lib.rs (1 hunks)
🧰 Additional context used
🧬 Code Definitions (1)
prover/crates/morph-executor/client/src/lib.rs (2)
prover/crates/morph-executor/host/src/lib.rs (4) (4)
  • trace (50-50)
  • trace (52-52)
  • trace (53-53)
  • trace (59-64)
prover/crates/primitives/src/types/tx.rs (2) (2)
  • input (314-319)
  • input (406-408)
🔇 Additional comments (3)
prover/crates/morph-executor/client/src/lib.rs (3)

14-14: Capacity increased to accommodate coinbase data

The capacity of batch_from_trace has been increased from num_blocks * 60 to num_blocks * 80 to account for the additional 20 bytes of coinbase data per block.

18-20: Updated comments to reflect the addition of coinbase data

The comments have been updated to document that the block context now includes the miner (coinbase) address, which is 20 bytes in length. The capacity of block_ctx has been correspondingly increased from 60 to 80 bytes.

28-28:

✅ Verification successful

Added coinbase to block context

This change extends the block context to include the coinbase address, which completes the implementation described in the PR objective "Add coinbase to block context".

🏁 Script executed:

#!/bin/bash
# Verify that the coinbase method exists and returns a value that can be converted to a slice

# Search for the coinbase method declaration in the codebase
rg -p "fn coinbase|pub coinbase" --type rust

# Check how the coinbase is used elsewhere for consistency
rg -p "\.coinbase\(\)" --type rust

Length of output: 590

Action: Verified proper addition of the coinbase address to block context

The verification confirms that:

  • The coinbase() method is defined in the primitives module and returns an Address, consistent with its usage in trace.coinbase().as_slice().
  • Similar usage of the coinbase() method exists in other parts of the codebase (e.g., in the executor module), showing consistency and correctness.

The change meets the PR objective "Add coinbase to block context" without any issues.

✨ Finishing Touches
  • 📝 Generate Docstrings
🪧 Tips

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