Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 36.77%. Comparing base (8ac29c0) to head (11b1373).
⚠️ Report is 23 commits behind head on dev/v4-fin.

@@              Coverage Diff               @@
##           dev/v4-fin     #455      +/-   ##
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- Coverage       42.09%   36.77%   -5.32%     
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  Files              12       12              
  Lines            2238     2238              
==============================================
- Hits              942      823     -119     
- Misses           1296     1415     +119     

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Greptile Summary

This PR fixes the ABI definition for the PERMIT2_PERMIT universal router command in constants.py. The previous value only encoded the inner PermitDetails struct, omitting the spender address and sigDeadline fields required by IAllowanceTransfer.PermitSingle.

• Replaces "(address,uint160,uint48,uint48)" with "((address,uint160,uint48,uint48),address,uint256)", correctly representing the full PermitSingle struct (details, spender, sigDeadline).
• The fix is consistent with the existing PERMIT2_PERMIT_BATCH entry which already used the analogous array form "((address,uint160,uint48,uint48)[],address,uint256)".

Confidence Score: 5/5

Single-line ABI constant fix that corrects an incomplete struct encoding; no logic or control-flow changes.

The change correctly replaces an incomplete inner-struct-only tuple with the full PermitSingle tuple, matching the Permit2 contract definition and aligning with the already-correct PERMIT2_PERMIT_BATCH entry. The fix is minimal and targeted with no side effects.

No files require special attention.

Important Files Changed

Sequence Diagram

sequenceDiagram
    participant Caller
    participant uniswap4.py
    participant constants.py
    participant eth_abi

    Caller->>uniswap4.py: execute PERMIT2_PERMIT command
    uniswap4.py->>constants.py: lookup universal_router_commands_abis["PERMIT2_PERMIT"]
    Note over constants.py: Returns ["((address,uint160,uint48,uint48),address,uint256)", "bytes"]<br/>(PermitSingle: details tuple + spender + sigDeadline)
    constants.py-->>uniswap4.py: ABI types list
    uniswap4.py->>eth_abi: encode(types, [permitSingle, signature])
    eth_abi-->>uniswap4.py: encoded bytes
    uniswap4.py-->>Caller: calldata for UniversalRouter

_{Reviews (2): Last reviewed commit: "fix" | Re-trigger Greptile}