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[0xDEnYO]

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Checklist before requesting a review

• I have performed a self-review of my code
• This pull request is as small as possible and only tackles one problem
• I have added tests that cover the functionality / test the bug
• I have updated any required documentation

Checklist for reviewer (DO NOT DEPLOY and contracts BEFORE CHECKING THIS!!!)

• I have checked that any arbitrary calls to external contracts are validated and or restricted
• I have checked that any privileged calls (i.e. storage modifications) are validated and or restricted
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Summary by CodeRabbit

• New Features

  • Enhanced calldata verification logic for improved handling of generic swap calls.
  • Added support for distinguishing between single and multi swaps, streamlining swap data processing.

• Bug Fixes

  • Implemented validation for calldata length to prevent processing of invalid data.

• Tests

  • Expanded testing coverage for generic swaps, including validation of parameter extraction and error handling for invalid calldata.

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Walkthrough

The changes involve updates to the CalldataVerificationFacet contract to enhance the calldata verification logic, particularly for generic swaps. The contract's version is updated to 1.2.0, introducing new imports and refining the verifyCalldata function to enforce stricter checks. Additionally, the testing suite is expanded with new tests to validate the updated functionalities, ensuring robust handling of various swap scenarios and error conditions.

Changes

Files	Change Summary
src/Facets/CalldataVerificationFacet.sol	Updated contract version to 1.2.0, added imports for GenericSwapFacetV3 and InvalidCallData, refined verifyCalldata, and introduced _isGenericV3SingleSwap function.
test/solidity/Facets/CalldataVerificationFacet.t.sol	Expanded test suite with new tests for generic swaps, renamed existing tests for clarity, and ensured robust error handling for invalid calldata.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant CalldataVerificationFacet
    participant GenericSwapFacetV3
    
    User->>CalldataVerificationFacet: Send calldata for verification
    CalldataVerificationFacet->>CalldataVerificationFacet: Check calldata length
    CalldataVerificationFacet->>CalldataVerificationFacet: Determine functionSelector
    CalldataVerificationFacet->>CalldataVerificationFacet: Call _isGenericV3SingleSwap()
    alt Valid calldata
        CalldataVerificationFacet->>GenericSwapFacetV3: Process swap
    else Invalid calldata
        CalldataVerificationFacet-->>User: Revert transaction
    end

Loading

Poem

🐰 In the meadow, swaps abound,
With new checks, we leap around!
Calldata verified, oh what a sight,
Hopping through logic, everything feels right.
With every test, we dance and play,
In the world of swaps, we’ll never stray! 🌼

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