Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

import { LibDiamond } from "./libraries/LibDiamond.sol";
import { IDiamondCut } from "./facets/DiamondCut/IDiamondCut.sol";

contract Diamond {
	receive() external payable {}

	constructor(address _contractOwner, address _diamondCutFacet) payable {
		LibDiamond.setContractOwner(_contractOwner);

		// Add the diamondCut external function from the diamondCutFacet
		IDiamondCut.FacetCut[] memory cut = new IDiamondCut.FacetCut[](1);
		bytes4[] memory functionSelectors = new bytes4[](1);
		functionSelectors[0] = IDiamondCut.diamondCut.selector;
		cut[0] = IDiamondCut.FacetCut({
			facetAddress: _diamondCutFacet,
			action: IDiamondCut.FacetCutAction.Add,
			functionSelectors: functionSelectors
		});
		LibDiamond.diamondCut(cut, 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 diamond storage
		assembly {
			ds.slot := position
		}
		// get facet from function selector
		address facet = ds.facetAddressAndSelectorPosition[msg.sig].facetAddress;
		require(facet != address(0), "Diamond: Function does not exist");
		// Execute external function from facet using delegatecall and return any value.
		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())
			}
		}
	}
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

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

	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: GPL-3.0-or-later
pragma solidity >=0.8.18;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

// A loupe is a small magnifying glass used to look at diamonds.
// These functions look at diamonds
interface IDiamondLoupe {
	struct Facet {
		address facetAddress;
		bytes4[] functionSelectors;
	}

	/// @notice Gets all facet addresses and their four byte function selectors.
	/// @return facets_ Facet
	function facets() external view returns (Facet[] memory facets_);

	/// @notice Gets all the function selectors supported by a specific facet.
	/// @param _facet The facet address.
	/// @return facetFunctionSelectors_
	function facetFunctionSelectors(address _facet) external view returns (bytes4[] memory facetFunctionSelectors_);

	/// @notice Get all the facet addresses used by a diamond.
	/// @return facetAddresses_
	function facetAddresses() external view returns (address[] memory facetAddresses_);

	/// @notice Gets the facet that supports the given selector.
	/// @dev If facet is not found return address(0).
	/// @param _functionSelector The function selector.
	/// @return facetAddress_ The facet address.
	function facetAddress(bytes4 _functionSelector) external view returns (address facetAddress_);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

interface IERC165 {
	/// @notice Query if a contract implements an interface
	/// @param interfaceId The interface identifier, as specified in ERC-165
	/// @dev Interface identification is specified in ERC-165. This function
	///  uses less than 30,000 gas.
	/// @return `true` if the contract implements `interfaceID` and
	///  `interfaceID` is not 0xffffffff, `false` otherwise
	function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.18;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

import { IDiamondCut } from "../facets/DiamondCut/IDiamondCut.sol";
import { IDiamondLoupe } from "../facets/DiamondLoup/IDiamondLoupe.sol";
import { IERC165 } from "../interfaces/IERC165.sol";

library LibDiamond {
	bytes32 public constant DIAMOND_STORAGE_POSITION = keccak256("diamond.standard.diamond.storage");

	struct FacetAddressAndSelectorPosition {
		address facetAddress;
		uint16 selectorPosition;
	}

	struct DiamondStorage {
		// function selector => facet address and selector position in selectors array
		mapping(bytes4 => FacetAddressAndSelectorPosition) facetAddressAndSelectorPosition;
		bytes4[] selectors;
		mapping(bytes4 => bool) supportedInterfaces;
		// owner of the contract
		address contractOwner;
	}

	function diamondStorage() internal pure returns (DiamondStorage storage ds) {
		bytes32 position = DIAMOND_STORAGE_POSITION;
		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 enforceIsOwnerOrContract() internal view {
		require(msg.sender == diamondStorage().contractOwner || msg.sender == address(this), "LibDiamond: Must be contract or owner");
	}

	function enforceIsContractOwner() internal view {
		require(msg.sender == diamondStorage().contractOwner, "LibDiamond: Must be contract owner");
	}

	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; facetIndex++) {
			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("LibDiamondCut: Incorrect FacetCutAction");
			}
		}
		emit DiamondCut(_diamondCut, _init, _calldata);
		initializeDiamondCut(_init, _calldata);
	}

	function addFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {
		require(_functionSelectors.length > 0, "LibDiamondCut: No selectors in facet to cut");
		DiamondStorage storage ds = diamondStorage();
		uint16 selectorCount = uint16(ds.selectors.length);
		require(_facetAddress != address(0), "LibDiamondCut: Add facet can't be address(0)");
		enforceHasContractCode(_facetAddress, "LibDiamondCut: Add facet has no code");
		for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
			bytes4 selector = _functionSelectors[selectorIndex];
			address oldFacetAddress = ds.facetAddressAndSelectorPosition[selector].facetAddress;
			require(oldFacetAddress == address(0), "LibDiamondCut: Can't add function that already exists");
			ds.facetAddressAndSelectorPosition[selector] = FacetAddressAndSelectorPosition(_facetAddress, selectorCount);
			ds.selectors.push(selector);
			selectorCount++;
		}
	}

	function replaceFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {
		require(_functionSelectors.length > 0, "LibDiamondCut: No selectors in facet to cut");
		DiamondStorage storage ds = diamondStorage();
		require(_facetAddress != address(0), "LibDiamondCut: Replace facet can't be address(0)");
		enforceHasContractCode(_facetAddress, "LibDiamondCut: Replace facet has no code");
		for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
			bytes4 selector = _functionSelectors[selectorIndex];
			address oldFacetAddress = ds.facetAddressAndSelectorPosition[selector].facetAddress;
			// can't replace immutable functions -- functions defined directly in the diamond
			require(oldFacetAddress != address(this), "LibDiamondCut: Can't replace immutable function");
			require(oldFacetAddress != _facetAddress, "LibDiamondCut: Can't replace function with same function");
			require(oldFacetAddress != address(0), "LibDiamondCut: Can't replace function that doesn't exist");
			// replace old facet address
			ds.facetAddressAndSelectorPosition[selector].facetAddress = _facetAddress;
		}
	}

	function removeFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {
		require(_functionSelectors.length > 0, "LibDiamondCut: No selectors in facet to cut");
		DiamondStorage storage ds = diamondStorage();
		uint256 selectorCount = ds.selectors.length;
		require(_facetAddress == address(0), "LibDiamondCut: Remove facet address must be address(0)");
		for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
			bytes4 selector = _functionSelectors[selectorIndex];
			FacetAddressAndSelectorPosition memory oldFacetAddressAndSelectorPosition = ds.facetAddressAndSelectorPosition[selector];
			require(oldFacetAddressAndSelectorPosition.facetAddress != address(0), "LibDiamondCut: Can't remove function that doesn't exist");
			// can't remove immutable functions -- functions defined directly in the diamond
			require(oldFacetAddressAndSelectorPosition.facetAddress != address(this), "LibDiamondCut: Can't remove immutable function.");
			// replace selector with last selector
			selectorCount--;
			if (oldFacetAddressAndSelectorPosition.selectorPosition != selectorCount) {
				bytes4 lastSelector = ds.selectors[selectorCount];
				ds.selectors[oldFacetAddressAndSelectorPosition.selectorPosition] = lastSelector;
				ds.facetAddressAndSelectorPosition[lastSelector].selectorPosition = oldFacetAddressAndSelectorPosition.selectorPosition;
			}
			// delete last selector
			ds.selectors.pop();
			delete ds.facetAddressAndSelectorPosition[selector];
		}
	}

	function initializeDiamondCut(address _init, bytes memory _calldata) internal {
		if (_init == address(0)) {
			require(_calldata.length == 0, "LibDiamondCut: _init is address(0) but_calldata is not empty");
		} else {
			require(_calldata.length > 0, "LibDiamondCut: _calldata is empty but _init is not address(0)");
			if (_init != address(this)) {
				enforceHasContractCode(_init, "LibDiamondCut: _init address has no code");
			}
			(bool success, bytes memory error) = _init.delegatecall(_calldata);
			if (!success) {
				if (error.length > 0) {
					// bubble up the error
					revert(string(error));
				} else {
					revert("LibDiamondCut: _init function reverted");
				}
			}
		}
	}

	function enforceHasContractCode(address _contract, string memory _errorMessage) internal view {
		uint256 contractSize;
		assembly {
			contractSize := extcodesize(_contract)
		}
		require(contractSize > 0, _errorMessage);
	}
}

{
  "metadata": {
    "bytecodeHash": "none"
  },
  "optimizer": {
    "enabled": true,
    "runs": 400
  },
  "viaIR": true,
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_contractOwner","type":"address"},{"internalType":"address","name":"_diamondCutFacet","type":"address"}],"stateMutability":"payable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

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0000000000000000000000009bc9ca7e6a8f013f40617c4585508a988db7c1c700000000000000000000000050e88c692b137b8a51b6017026ef414651e0d5ba

-----Decoded View---------------
Arg [0] : _contractOwner (address): 0x9BC9CA7e6A8F013f40617c4585508A988DB7C1c7
Arg [1] : _diamondCutFacet (address): 0x50E88C692B137B8a51b6017026Ef414651e0d5ba

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000009bc9ca7e6a8f013f40617c4585508a988db7c1c7
Arg [1] : 00000000000000000000000050e88c692b137b8a51b6017026ef414651e0d5ba