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Block
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Initiate Bridge ...224658922025-05-12 8:02:11290 days ago1747036931IN
0xcC6cF71a...0B1E2B434
0.00001 ETH0.001027649.25261531
Initiate Bridge ...224569702025-05-11 1:55:59291 days ago1746928559IN
0xcC6cF71a...0B1E2B434
0.00015744 ETH0.00031052.79600163
Initiate Bridge ...224504822025-05-10 4:00:35292 days ago1746849635IN
0xcC6cF71a...0B1E2B434
0.00017112 ETH0.000399693.59875357
Initiate Bridge ...223577512025-04-27 3:38:47305 days ago1745725127IN
0xcC6cF71a...0B1E2B434
0.00020089 ETH0.000051640.46503296
Initiate Bridge ...223498242025-04-26 1:08:59306 days ago1745629739IN
0xcC6cF71a...0B1E2B434
0.00020241 ETH0.000277152.49539434
Initiate Bridge ...223437862025-04-25 4:56:35307 days ago1745556995IN
0xcC6cF71a...0B1E2B434
0.00020687 ETH0.000123931.16629587
Initiate Bridge ...223436342025-04-25 4:26:11307 days ago1745555171IN
0xcC6cF71a...0B1E2B434
0.00020644 ETH0.000115131.08350142
Initiate Bridge ...223436132025-04-25 4:21:59307 days ago1745554919IN
0xcC6cF71a...0B1E2B434
0.00020646 ETH0.000111631.05042311
Initiate Bridge ...223427292025-04-25 1:24:35307 days ago1745544275IN
0xcC6cF71a...0B1E2B434
0.0002053 ETH0.0001231.15725992
Initiate Bridge ...223299512025-04-23 6:35:35309 days ago1745390135IN
0xcC6cF71a...0B1E2B434
0.00020827 ETH0.000384643.46251996
Initiate Bridge ...223228552025-04-22 6:49:11310 days ago1745304551IN
0xcC6cF71a...0B1E2B434
0.00023026 ETH0.000088720.83497023
Initiate Bridge ...222971092025-04-18 16:35:11314 days ago1744994111IN
0xcC6cF71a...0B1E2B434
0.00022699 ETH0.00008780.79048899
Initiate Bridge ...222950902025-04-18 9:48:11314 days ago1744969691IN
0xcC6cF71a...0B1E2B434
0.00022435 ETH0.000085520.7700715
Initiate Bridge ...222615772025-04-13 17:34:23318 days ago1744565663IN
0xcC6cF71a...0B1E2B434
0.00022001 ETH0.0014773813.3019544
Initiate Bridge ...222544822025-04-12 17:50:11319 days ago1744480211IN
0xcC6cF71a...0B1E2B434
0.00021996 ETH0.000289992.61076655
Initiate Bridge ...222543032025-04-12 17:14:11319 days ago1744478051IN
0xcC6cF71a...0B1E2B434
0.00021999 ETH0.000363553.2733939
Initiate Bridge ...222508122025-04-12 5:33:47320 days ago1744436027IN
0xcC6cF71a...0B1E2B434
0.00022651 ETH0.000076080.6849547
Initiate Bridge ...222495832025-04-12 1:27:47320 days ago1744421267IN
0xcC6cF71a...0B1E2B434
0.00022768 ETH0.000060080.54095272
Initiate Bridge ...222494702025-04-12 1:04:59320 days ago1744419899IN
0xcC6cF71a...0B1E2B434
0.00022679 ETH0.00006150.55384377
Initiate Bridge ...222493492025-04-12 0:40:47320 days ago1744418447IN
0xcC6cF71a...0B1E2B434
0.00022656 ETH0.000057020.51353415
Initiate Bridge ...222478822025-04-11 19:46:47320 days ago1744400807IN
0xcC6cF71a...0B1E2B434
0.00022704 ETH0.000175111.57635687
Initiate Bridge ...222463082025-04-11 14:30:23321 days ago1744381823IN
0xcC6cF71a...0B1E2B434
0.00022774 ETH0.00047494.27587774
Initiate Bridge ...222461332025-04-11 13:55:23321 days ago1744379723IN
0xcC6cF71a...0B1E2B434
0.0002249 ETH0.000288162.59486164
Initiate Bridge ...222454632025-04-11 11:40:35321 days ago1744371635IN
0xcC6cF71a...0B1E2B434
0.00022627 ETH0.000181661.63600509
Initiate Bridge ...222451932025-04-11 10:46:23321 days ago1744368383IN
0xcC6cF71a...0B1E2B434
0.00022475 ETH0.000391063.52067047
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Transfer224658922025-05-12 8:02:11290 days ago1747036931
0xcC6cF71a...0B1E2B434
0.00001 ETH
Transfer224569702025-05-11 1:55:59291 days ago1746928559
0xcC6cF71a...0B1E2B434
0.00015744 ETH
Transfer224504822025-05-10 4:00:35292 days ago1746849635
0xcC6cF71a...0B1E2B434
0.00017112 ETH
Transfer223577512025-04-27 3:38:47305 days ago1745725127
0xcC6cF71a...0B1E2B434
0.00020089 ETH
Transfer223498242025-04-26 1:08:59306 days ago1745629739
0xcC6cF71a...0B1E2B434
0.00020241 ETH
Transfer223437862025-04-25 4:56:35307 days ago1745556995
0xcC6cF71a...0B1E2B434
0.00020687 ETH
Transfer223436342025-04-25 4:26:11307 days ago1745555171
0xcC6cF71a...0B1E2B434
0.00020644 ETH
Transfer223436132025-04-25 4:21:59307 days ago1745554919
0xcC6cF71a...0B1E2B434
0.00020646 ETH
Transfer223427292025-04-25 1:24:35307 days ago1745544275
0xcC6cF71a...0B1E2B434
0.0002053 ETH
Transfer223299512025-04-23 6:35:35309 days ago1745390135
0xcC6cF71a...0B1E2B434
0.00020827 ETH
Transfer223228552025-04-22 6:49:11310 days ago1745304551
0xcC6cF71a...0B1E2B434
0.00023026 ETH
Transfer222971092025-04-18 16:35:11314 days ago1744994111
0xcC6cF71a...0B1E2B434
0.00022699 ETH
Transfer222950902025-04-18 9:48:11314 days ago1744969691
0xcC6cF71a...0B1E2B434
0.00022435 ETH
Transfer222615772025-04-13 17:34:23318 days ago1744565663
0xcC6cF71a...0B1E2B434
0.00022001 ETH
Transfer222544822025-04-12 17:50:11319 days ago1744480211
0xcC6cF71a...0B1E2B434
0.00021996 ETH
Transfer222543032025-04-12 17:14:11319 days ago1744478051
0xcC6cF71a...0B1E2B434
0.00021999 ETH
Transfer222508122025-04-12 5:33:47320 days ago1744436027
0xcC6cF71a...0B1E2B434
0.00022651 ETH
Transfer222495832025-04-12 1:27:47320 days ago1744421267
0xcC6cF71a...0B1E2B434
0.00022768 ETH
Transfer222494702025-04-12 1:04:59320 days ago1744419899
0xcC6cF71a...0B1E2B434
0.00022679 ETH
Transfer222493492025-04-12 0:40:47320 days ago1744418447
0xcC6cF71a...0B1E2B434
0.00022656 ETH
Transfer222478822025-04-11 19:46:47320 days ago1744400807
0xcC6cF71a...0B1E2B434
0.00022704 ETH
Transfer222463082025-04-11 14:30:23321 days ago1744381823
0xcC6cF71a...0B1E2B434
0.00022774 ETH
Transfer222461332025-04-11 13:55:23321 days ago1744379723
0xcC6cF71a...0B1E2B434
0.0002249 ETH
Transfer222454632025-04-11 11:40:35321 days ago1744371635
0xcC6cF71a...0B1E2B434
0.00022627 ETH
Transfer222451932025-04-11 10:46:23321 days ago1744368383
0xcC6cF71a...0B1E2B434
0.00022475 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x401c8680...aC4ef5A53
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
CATRelayerDiamond

Compiler Version
v0.8.10+commit.fc410830

Optimization Enabled:
Yes with 10000 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 6 : CATRelayerDiamond.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

import { LibDiamond } from "./libraries/LibDiamond.sol";
import { IDiamondCut } from "./interfaces/IDiamondCut.sol";
import { LibUtil } from "./libraries/LibUtil.sol";


/**
 * @title CATRelayerDiamond
 */
contract CATRelayerDiamond {
	
	event FacetCalled(address indexed facet, bytes4 indexed functionSelector);
	struct DiamondArgs {
		address contractOwner;
 		address wormholeAddress;
		address gasCollector;
		uint8 chainId;
		uint8 finality;
	}
    constructor(IDiamondCut.FacetCut[] memory _diamondCut, DiamondArgs memory args) payable {
		LibDiamond.initialize(args.contractOwner, args.wormholeAddress, args.gasCollector, args.chainId, args.finality);
        LibDiamond.diamondCut(_diamondCut, address(0), "");
    }
	
	
	// Find facet for function that is called and execute the
	// function if a facet is found and return any value.
	fallback() external payable {
		LibDiamond.DiamondStorage storage ds;
		bytes32 position = LibDiamond.DIAMOND_STORAGE_POSITION;
		
		// get relayer storage
		assembly {
			ds.slot := position
		}
		
		// get facet from function selector
		address facet = ds.selectorToFacetAndPosition[msg.sig].facetAddress;
		
		if (facet == address(0)) {
			revert LibDiamond.FunctionDoesNotExist();
		}
		
		emit FacetCalled(facet, msg.sig);
		// Execute external function from facet using delegatecall and return any value.
		// solhint-disable-next-line no-inline-assembly
		assembly {
		// copy function selector and any arguments
			calldatacopy(0, 0, calldatasize())
		// execute function call using the facet
			let result := delegatecall(gas(), facet, 0, calldatasize(), 0, 0)
		// get any return value
			returndatacopy(0, 0, returndatasize())
		// return any return value or error back to the caller
			switch result
			case 0 {
				revert(0, returndatasize())
			}
			default {
				return(0, returndatasize())
			}
		}
	}
	
	// Able to receive ether
	// solhint-disable-next-line no-empty-blocks
	receive() external payable {}
}

File 2 of 6 : GenericErrors.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;

error AlreadyInitialized();
error CannotAuthoriseSelf();
error CannotBridgeToSameNetwork();
error ContractCallNotAllowed();
error CumulativeSlippageTooHigh(uint256 minAmount, uint256 receivedAmount);
error ExternalCallFailed();
error InformationMismatch();
error InsufficientBalance(uint256 required, uint256 balance);
error InvalidAmount();
error InvalidCallData();
error InvalidConfig();
error InvalidContract();
error InvalidDestinationChain();
error InvalidFallbackAddress();
error InvalidReceiver();
error InvalidSendingToken();
error NativeAssetNotSupported();
error NativeAssetTransferFailed();
error NoSwapDataProvided();
error NoSwapFromZeroBalance();
error NotAContract();
error NotInitialized();
error NoTransferToNullAddress();
error NullAddrIsNotAnERC20Token();
error NullAddrIsNotAValidSpender();
error OnlyContractOwner();
error RecoveryAddressCannotBeZero();
error ReentrancyError();
error TokenNotSupported();
error UnAuthorized();
error UnsupportedChainId(uint256 chainId);
error WithdrawFailed();
error ZeroAmount();

File 3 of 6 : IDiamondCut.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;

interface IDiamondCut {
    enum FacetCutAction {
        Add,
        Replace,
        Remove
    }
    // Add=0, Replace=1, Remove=2

    struct FacetCut {
        address facetAddress;
        FacetCutAction action;
        bytes4[] functionSelectors;
    }

    /// @notice Add/replace/remove any number of functions and optionally execute
    ///         a function with delegatecall
    /// @param _diamondCut Contains the facet addresses and function selectors
    /// @param _init The address of the contract or facet to execute _calldata
    /// @param _calldata A function call, including function selector and arguments
    ///                  _calldata is executed with delegatecall on _init
    function diamondCut(
        FacetCut[] calldata _diamondCut,
        address _init,
        bytes calldata _calldata
    ) external;

    event DiamondCut(FacetCut[] _diamondCut, address _init, bytes _calldata);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;

library LibBytes {
    // solhint-disable no-inline-assembly

    // LibBytes specific errors
    error SliceOverflow();
    error SliceOutOfBounds();
    error AddressOutOfBounds();

    bytes16 private constant _SYMBOLS = "0123456789abcdef";

    // -------------------------

    function slice(
        bytes memory _bytes,
        uint256 _start,
        uint256 _length
    ) internal pure returns (bytes memory) {
        if (_length + 31 < _length) revert SliceOverflow();
        if (_bytes.length < _start + _length) revert SliceOutOfBounds();

        bytes memory tempBytes;

        assembly {
            switch iszero(_length)
            case 0 {
                // Get a location of some free memory and store it in tempBytes as
                // Solidity does for memory variables.
                tempBytes := mload(0x40)

                // The first word of the slice result is potentially a partial
                // word read from the original array. To read it, we calculate
                // the length of that partial word and start copying that many
                // bytes into the array. The first word we copy will start with
                // data we don't care about, but the last `lengthmod` bytes will
                // land at the beginning of the contents of the new array. When
                // we're done copying, we overwrite the full first word with
                // the actual length of the slice.
                let lengthmod := and(_length, 31)

                // The multiplication in the next line is necessary
                // because when slicing multiples of 32 bytes (lengthmod == 0)
                // the following copy loop was copying the origin's length
                // and then ending prematurely not copying everything it should.
                let mc := add(
                    add(tempBytes, lengthmod),
                    mul(0x20, iszero(lengthmod))
                )
                let end := add(mc, _length)

                for {
                    // The multiplication in the next line has the same exact purpose
                    // as the one above.
                    let cc := add(
                        add(
                            add(_bytes, lengthmod),
                            mul(0x20, iszero(lengthmod))
                        ),
                        _start
                    )
                } lt(mc, end) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                    mstore(mc, mload(cc))
                }

                mstore(tempBytes, _length)

                //update free-memory pointer
                //allocating the array padded to 32 bytes like the compiler does now
                mstore(0x40, and(add(mc, 31), not(31)))
            }
            //if we want a zero-length slice let's just return a zero-length array
            default {
                tempBytes := mload(0x40)
                //zero out the 32 bytes slice we are about to return
                //we need to do it because Solidity does not garbage collect
                mstore(tempBytes, 0)

                mstore(0x40, add(tempBytes, 0x20))
            }
        }

        return tempBytes;
    }

    function toAddress(
        bytes memory _bytes,
        uint256 _start
    ) internal pure returns (address) {
        if (_bytes.length < _start + 20) {
            revert AddressOutOfBounds();
        }
        address tempAddress;

        assembly {
            tempAddress := div(
                mload(add(add(_bytes, 0x20), _start)),
                0x1000000000000000000000000
            )
        }

        return tempAddress;
    }

    /// Copied from OpenZeppelin's `Strings.sol` utility library.
    /// https://github.com/OpenZeppelin/openzeppelin-contracts/blob/8335676b0e99944eef6a742e16dcd9ff6e68e609/contracts/utils/Strings.sol
    function toHexString(
        uint256 value,
        uint256 length
    ) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;

import { IDiamondCut } from "../interfaces/IDiamondCut.sol";
import { LibUtil } from "../libraries/LibUtil.sol";
import { OnlyContractOwner } from "../errors/GenericErrors.sol";

/// Implementation of EIP-2535 Diamond Standard
/// https://eips.ethereum.org/EIPS/eip-2535
library LibDiamond {
    bytes32 internal constant DIAMOND_STORAGE_POSITION =
        keccak256("diamond.standard.diamond.storage");

    // Diamond specific errors
    error IncorrectFacetCutAction();
    error NoSelectorsInFace();
    error FunctionAlreadyExists();
    error FacetAddressIsZero();
    error FacetAddressIsNotZero();
    error FacetContainsNoCode();
    error FunctionDoesNotExist();
    error FunctionIsImmutable();
    error InitZeroButCalldataNotEmpty();
    error CalldataEmptyButInitNotZero();
    error InitReverted();
    // ----------------

    struct FacetAddressAndPosition {
        address facetAddress;
        uint96 functionSelectorPosition; // position in facetFunctionSelectors.functionSelectors array
    }

    struct FacetFunctionSelectors {
        bytes4[] functionSelectors;
        uint256 facetAddressPosition; // position of facetAddress in facetAddresses array
    }

    struct DiamondStorage {
        // maps function selector to the facet address and
        // the position of the selector in the facetFunctionSelectors.selectors array
        mapping(bytes4 => FacetAddressAndPosition) selectorToFacetAndPosition;
        // maps facet addresses to function selectors
        mapping(address => FacetFunctionSelectors) facetFunctionSelectors;
        // facet addresses
        address[] facetAddresses;
        // Used to query if a contract implements an interface.
        // Used to implement ERC-165.
        mapping(bytes4 => bool) supportedInterfaces;
        // owner of the contract
        address contractOwner;
		
		// chain ID as per WORMHOLE
		uint16 chainId;
		
		// WORMHOLE bridge contract address
		address wormhole;
		
		// address where all fee will be transferred whenever a token/nft is going to be deployed.
		address payable gasCollector;
		
		//finality means how many blocks wil be acceptable when message relayed.
		uint8 finality;
	}

	function initialize( address _contractOwner, address _wormhole, address _gasCollector, uint16 _chainId, uint8 _finality) internal {
		DiamondStorage storage ds = diamondStorage();
		ds.contractOwner = _contractOwner;
		ds.wormhole = _wormhole;
		ds.gasCollector = payable(_gasCollector);
		ds.chainId = _chainId;
		ds.finality = _finality;
	}
    function diamondStorage()
        internal
        pure
        returns (DiamondStorage storage ds)
    {
        bytes32 position = DIAMOND_STORAGE_POSITION;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            ds.slot := position
        }
    }

    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    function setContractOwner(address _newOwner) internal {
        DiamondStorage storage ds = diamondStorage();
        address previousOwner = ds.contractOwner;
        ds.contractOwner = _newOwner;
        emit OwnershipTransferred(previousOwner, _newOwner);
    }

    function contractOwner() internal view returns (address contractOwner_) {
        contractOwner_ = diamondStorage().contractOwner;
    }

    function enforceIsContractOwner() internal view {
        if (msg.sender != diamondStorage().contractOwner)
            revert OnlyContractOwner();
    }

    event DiamondCut(
        IDiamondCut.FacetCut[] _diamondCut,
        address _init,
        bytes _calldata
    );

    // Internal function version of diamondCut
    function diamondCut(
        IDiamondCut.FacetCut[] memory _diamondCut,
        address _init,
        bytes memory _calldata
    ) internal {
        for (uint256 facetIndex; facetIndex < _diamondCut.length; ) {
            IDiamondCut.FacetCutAction action = _diamondCut[facetIndex].action;
            if (action == IDiamondCut.FacetCutAction.Add) {
                addFunctions(
                    _diamondCut[facetIndex].facetAddress,
                    _diamondCut[facetIndex].functionSelectors
                );
            } else if (action == IDiamondCut.FacetCutAction.Replace) {
                replaceFunctions(
                    _diamondCut[facetIndex].facetAddress,
                    _diamondCut[facetIndex].functionSelectors
                );
            } else if (action == IDiamondCut.FacetCutAction.Remove) {
                removeFunctions(
                    _diamondCut[facetIndex].facetAddress,
                    _diamondCut[facetIndex].functionSelectors
                );
            } else {
                revert IncorrectFacetCutAction();
            }
            unchecked {
                ++facetIndex;
            }
        }
        emit DiamondCut(_diamondCut, _init, _calldata);
        initializeDiamondCut(_init, _calldata);
    }

    function addFunctions(
        address _facetAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        if (_functionSelectors.length == 0) {
            revert NoSelectorsInFace();
        }
        DiamondStorage storage ds = diamondStorage();
        if (LibUtil.isZeroAddress(_facetAddress)) {
            revert FacetAddressIsZero();
        }
        uint96 selectorPosition = uint96(
            ds.facetFunctionSelectors[_facetAddress].functionSelectors.length
        );
        // add new facet address if it does not exist
        if (selectorPosition == 0) {
            addFacet(ds, _facetAddress);
        }
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;

        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldFacetAddress = ds
                .selectorToFacetAndPosition[selector]
                .facetAddress;
            if (!LibUtil.isZeroAddress(oldFacetAddress)) {
                revert FunctionAlreadyExists();
            }
            addFunction(ds, selector, selectorPosition, _facetAddress);
            unchecked {
                ++selectorPosition;
                ++selectorIndex;
            }
        }
    }

    function replaceFunctions(
        address _facetAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        if (_functionSelectors.length == 0) {
            revert NoSelectorsInFace();
        }
        DiamondStorage storage ds = diamondStorage();
        if (LibUtil.isZeroAddress(_facetAddress)) {
            revert FacetAddressIsZero();
        }
        uint96 selectorPosition = uint96(
            ds.facetFunctionSelectors[_facetAddress].functionSelectors.length
        );
        // add new facet address if it does not exist
        if (selectorPosition == 0) {
            addFacet(ds, _facetAddress);
        }
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;

        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldFacetAddress = ds
                .selectorToFacetAndPosition[selector]
                .facetAddress;
            if (oldFacetAddress == _facetAddress) {
                revert FunctionAlreadyExists();
            }
            removeFunction(ds, oldFacetAddress, selector);
            addFunction(ds, selector, selectorPosition, _facetAddress);
            unchecked {
                ++selectorPosition;
                ++selectorIndex;
            }
        }
    }

    function removeFunctions(
        address _facetAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        if (_functionSelectors.length == 0) {
            revert NoSelectorsInFace();
        }
        DiamondStorage storage ds = diamondStorage();
        // if function does not exist then do nothing and return
        if (!LibUtil.isZeroAddress(_facetAddress)) {
            revert FacetAddressIsNotZero();
        }
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;

        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldFacetAddress = ds
                .selectorToFacetAndPosition[selector]
                .facetAddress;
            removeFunction(ds, oldFacetAddress, selector);
            unchecked {
                ++selectorIndex;
            }
        }
    }

    function addFacet(
        DiamondStorage storage ds,
        address _facetAddress
    ) internal {
        enforceHasContractCode(_facetAddress);
        ds.facetFunctionSelectors[_facetAddress].facetAddressPosition = ds
            .facetAddresses
            .length;
        ds.facetAddresses.push(_facetAddress);
    }

    function addFunction(
        DiamondStorage storage ds,
        bytes4 _selector,
        uint96 _selectorPosition,
        address _facetAddress
    ) internal {
        ds
            .selectorToFacetAndPosition[_selector]
            .functionSelectorPosition = _selectorPosition;
        ds.facetFunctionSelectors[_facetAddress].functionSelectors.push(
            _selector
        );
        ds.selectorToFacetAndPosition[_selector].facetAddress = _facetAddress;
    }

    function removeFunction(
        DiamondStorage storage ds,
        address _facetAddress,
        bytes4 _selector
    ) internal {
        if (LibUtil.isZeroAddress(_facetAddress)) {
            revert FunctionDoesNotExist();
        }
        // an immutable function is a function defined directly in a relayer
        if (_facetAddress == address(this)) {
            revert FunctionIsImmutable();
        }
        // replace selector with last selector, then delete last selector
        uint256 selectorPosition = ds
            .selectorToFacetAndPosition[_selector]
            .functionSelectorPosition;
        uint256 lastSelectorPosition = ds
            .facetFunctionSelectors[_facetAddress]
            .functionSelectors
            .length - 1;
        // if not the same then replace _selector with lastSelector
        if (selectorPosition != lastSelectorPosition) {
            bytes4 lastSelector = ds
                .facetFunctionSelectors[_facetAddress]
                .functionSelectors[lastSelectorPosition];
            ds.facetFunctionSelectors[_facetAddress].functionSelectors[
                selectorPosition
            ] = lastSelector;
            ds
                .selectorToFacetAndPosition[lastSelector]
                .functionSelectorPosition = uint96(selectorPosition);
        }
        // delete the last selector
        ds.facetFunctionSelectors[_facetAddress].functionSelectors.pop();
        delete ds.selectorToFacetAndPosition[_selector];

        // if no more selectors for facet address then delete the facet address
        if (lastSelectorPosition == 0) {
            // replace facet address with last facet address and delete last facet address
            uint256 lastFacetAddressPosition = ds.facetAddresses.length - 1;
            uint256 facetAddressPosition = ds
                .facetFunctionSelectors[_facetAddress]
                .facetAddressPosition;
            if (facetAddressPosition != lastFacetAddressPosition) {
                address lastFacetAddress = ds.facetAddresses[
                    lastFacetAddressPosition
                ];
                ds.facetAddresses[facetAddressPosition] = lastFacetAddress;
                ds
                    .facetFunctionSelectors[lastFacetAddress]
                    .facetAddressPosition = facetAddressPosition;
            }
            ds.facetAddresses.pop();
            delete ds
                .facetFunctionSelectors[_facetAddress]
                .facetAddressPosition;
        }
    }

    function initializeDiamondCut(
        address _init,
        bytes memory _calldata
    ) internal {
        if (LibUtil.isZeroAddress(_init)) {
            if (_calldata.length != 0) {
                revert InitZeroButCalldataNotEmpty();
            }
        } else {
            if (_calldata.length == 0) {
                revert CalldataEmptyButInitNotZero();
            }
            if (_init != address(this)) {
                enforceHasContractCode(_init);
            }
            // solhint-disable-next-line avoid-low-level-calls
            (bool success, bytes memory error) = _init.delegatecall(_calldata);
            if (!success) {
                if (error.length > 0) {
                    // bubble up the error
                    revert(string(error));
                } else {
                    revert InitReverted();
                }
            }
        }
    }

    function enforceHasContractCode(address _contract) internal view {
        uint256 contractSize;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            contractSize := extcodesize(_contract)
        }
        if (contractSize == 0) {
            revert FacetContainsNoCode();
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;

import "./LibBytes.sol";

library LibUtil {
    using LibBytes for bytes;

    function getRevertMsg(
        bytes memory _res
    ) internal pure returns (string memory) {
        // If the _res length is less than 68, then the transaction failed silently (without a revert message)
        if (_res.length < 68) return "Transaction reverted silently";
        bytes memory revertData = _res.slice(4, _res.length - 4); // Remove the selector which is the first 4 bytes
        return abi.decode(revertData, (string)); // All that remains is the revert string
    }

    /// @notice Determines whether the given address is the zero address
    /// @param addr The address to verify
    /// @return Boolean indicating if the address is the zero address
    function isZeroAddress(address addr) internal pure returns (bool) {
        return addr == address(0);
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

API
[{"inputs":[{"components":[{"internalType":"address","name":"facetAddress","type":"address"},{"internalType":"enum IDiamondCut.FacetCutAction","name":"action","type":"uint8"},{"internalType":"bytes4[]","name":"functionSelectors","type":"bytes4[]"}],"internalType":"struct IDiamondCut.FacetCut[]","name":"_diamondCut","type":"tuple[]"},{"components":[{"internalType":"address","name":"contractOwner","type":"address"},{"internalType":"address","name":"wormholeAddress","type":"address"},{"internalType":"address","name":"gasCollector","type":"address"},{"internalType":"uint8","name":"chainId","type":"uint8"},{"internalType":"uint8","name":"finality","type":"uint8"}],"internalType":"struct CATRelayerDiamond.DiamondArgs","name":"args","type":"tuple"}],"stateMutability":"payable","type":"constructor"},{"inputs":[],"name":"CalldataEmptyButInitNotZero","type":"error"},{"inputs":[],"name":"FacetAddressIsNotZero","type":"error"},{"inputs":[],"name":"FacetAddressIsZero","type":"error"},{"inputs":[],"name":"FacetContainsNoCode","type":"error"},{"inputs":[],"name":"FunctionAlreadyExists","type":"error"},{"inputs":[],"name":"FunctionDoesNotExist","type":"error"},{"inputs":[],"name":"FunctionIsImmutable","type":"error"},{"inputs":[],"name":"IncorrectFacetCutAction","type":"error"},{"inputs":[],"name":"InitReverted","type":"error"},{"inputs":[],"name":"InitZeroButCalldataNotEmpty","type":"error"},{"inputs":[],"name":"NoSelectorsInFace","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"facet","type":"address"},{"indexed":true,"internalType":"bytes4","name":"functionSelector","type":"bytes4"}],"name":"FacetCalled","type":"event"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.