{ "contractName": "Diamond", "abi": [ { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "stateMutability": "payable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "stateMutability": "payable", "type": "fallback" }, { "stateMutability": "payable", "type": "receive" } ], "bytecode": 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"{\"compiler\":{\"version\":\"0.7.1+commit.f4a555be\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"stateMutability\":\"payable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"stateMutability\":\"payable\",\"type\":\"fallback\"},{\"stateMutability\":\"payable\",\"type\":\"receive\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"solc_0.7/diamond/Diamond.sol\":\"Diamond\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":2000},\"remappings\":[]},\"sources\":{\"solc_0.7/diamond/Diamond.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/******************************************************************************\\\\\\n* Author: Nick Mudge\\n*\\n* Implementation of an example of a diamond.\\n/******************************************************************************/\\n\\nimport \\\"./libraries/LibDiamondStorage.sol\\\";\\nimport \\\"./libraries/LibDiamondCut.sol\\\";\\nimport \\\"./facets/OwnershipFacet.sol\\\";\\nimport \\\"./facets/DiamondCutFacet.sol\\\";\\nimport \\\"./facets/DiamondLoupeFacet.sol\\\";\\n\\ncontract Diamond {\\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\\n\\n constructor(address owner) payable {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n ds.contractOwner = owner;\\n emit OwnershipTransferred(address(0), owner);\\n\\n DiamondCutFacet diamondCutFacet = new DiamondCutFacet();\\n\\n DiamondLoupeFacet diamondLoupeFacet = new DiamondLoupeFacet();\\n\\n // Create a OwnershipFacet contract which implements the ERC-173 Ownership interface\\n OwnershipFacet ownershipFacet = new OwnershipFacet();\\n\\n IDiamondCut.Facet[] memory diamondCut = new IDiamondCut.Facet[](3);\\n\\n // adding diamondCut function\\n diamondCut[0].facetAddress = address(diamondCutFacet);\\n diamondCut[0].functionSelectors = new bytes4[](1);\\n diamondCut[0].functionSelectors[0] = DiamondCutFacet.diamondCut.selector;\\n\\n // adding diamond loupe functions\\n diamondCut[1].facetAddress = address(diamondLoupeFacet);\\n diamondCut[1].functionSelectors = new bytes4[](5);\\n diamondCut[1].functionSelectors[0] = DiamondLoupeFacet.facetFunctionSelectors.selector;\\n diamondCut[1].functionSelectors[1] = DiamondLoupeFacet.facets.selector;\\n diamondCut[1].functionSelectors[2] = DiamondLoupeFacet.facetAddress.selector;\\n diamondCut[1].functionSelectors[3] = DiamondLoupeFacet.facetAddresses.selector;\\n diamondCut[1].functionSelectors[4] = DiamondLoupeFacet.supportsInterface.selector;\\n\\n // adding ownership functions\\n diamondCut[2].facetAddress = address(ownershipFacet);\\n diamondCut[2].functionSelectors = new bytes4[](2);\\n diamondCut[2].functionSelectors[0] = OwnershipFacet.transferOwnership.selector;\\n diamondCut[2].functionSelectors[1] = OwnershipFacet.owner.selector;\\n\\n // execute non-standard internal diamondCut function to add functions\\n LibDiamondCut.diamondCut(diamondCut);\\n\\n // adding ERC165 data\\n // ERC165\\n ds.supportedInterfaces[IERC165.supportsInterface.selector] = true;\\n\\n // DiamondCut\\n ds.supportedInterfaces[DiamondCutFacet.diamondCut.selector] = true;\\n\\n // DiamondLoupe\\n bytes4 interfaceID = IDiamondLoupe.facets.selector ^\\n IDiamondLoupe.facetFunctionSelectors.selector ^\\n IDiamondLoupe.facetAddresses.selector ^\\n IDiamondLoupe.facetAddress.selector;\\n ds.supportedInterfaces[interfaceID] = true;\\n\\n // ERC173\\n ds.supportedInterfaces[IERC173.transferOwnership.selector ^ IERC173.owner.selector] = true;\\n }\\n\\n // Find facet for function that is called and execute the\\n // function if a facet is found and return any value.\\n fallback() external payable {\\n LibDiamondStorage.DiamondStorage storage ds;\\n bytes32 position = LibDiamondStorage.DIAMOND_STORAGE_POSITION;\\n assembly {\\n ds.slot := position\\n }\\n address facet = ds.selectorToFacetAndPosition[msg.sig].facetAddress;\\n require(facet != address(0), \\\"Diamond: Function does not exist\\\");\\n assembly {\\n calldatacopy(0, 0, calldatasize())\\n let result := delegatecall(gas(), facet, 0, calldatasize(), 0, 0)\\n returndatacopy(0, 0, returndatasize())\\n switch result\\n case 0 {\\n revert(0, returndatasize())\\n }\\n default {\\n return(0, returndatasize())\\n }\\n }\\n }\\n\\n receive() external payable {}\\n}\\n\",\"keccak256\":\"0x5d2e73e1c35ca41c6164e04a56398470a65f7c259613dc85b786a4bece4f781d\",\"license\":\"MIT\"},\"solc_0.7/diamond/facets/DiamondCutFacet.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/******************************************************************************\\\\\\n* Author: Nick Mudge (https://twitter.com/mudgen)\\n*\\n* Implementation of diamondCut external function.\\n/******************************************************************************/\\n\\nimport \\\"../libraries/LibDiamondStorage.sol\\\";\\nimport \\\"../interfaces/IDiamondCut.sol\\\";\\nimport \\\"../libraries/LibDiamondCut.sol\\\";\\n\\ncontract DiamondCutFacet is IDiamondCut {\\n // Standard diamondCut external function\\n /// @notice Add/replace/remove any number of functions and optionally execute\\n /// a function with delegatecall\\n /// @param _diamondCut Contains the facet addresses and function selectors\\n /// @param _init The address of the contract or facet to execute _calldata\\n /// @param _calldata A function call, including function selector and arguments\\n /// _calldata is executed with delegatecall on _init\\n function diamondCut(\\n Facet[] calldata _diamondCut,\\n address _init,\\n bytes calldata _calldata\\n ) external override {\\n externalCut(_diamondCut);\\n emit DiamondCut(_diamondCut, _init, _calldata);\\n if (_init == address(0)) {\\n require(_calldata.length == 0, \\\"DiamondCutFacet: _init is address(0) but_calldata is not empty\\\");\\n } else {\\n require(_calldata.length > 0, \\\"DiamondCutFacet: _calldata is empty but _init is not address(0)\\\");\\n if (_init != address(this)) {\\n LibDiamondCut.hasContractCode(_init, \\\"DiamondCutFacet: _init address has no code\\\");\\n }\\n (bool success, bytes memory error) = _init.delegatecall(_calldata);\\n if (!success) {\\n if (error.length > 0) {\\n // bubble up the error\\n revert(string(error));\\n } else {\\n revert(\\\"DiamondCutFacet: _init function reverted\\\");\\n }\\n }\\n }\\n }\\n\\n // diamondCut helper function\\n // This code is almost the same as the internal diamondCut function,\\n // except it is using 'Facets[] calldata _diamondCut' instead of\\n // 'Facet[] memory _diamondCut', and it does not issue the DiamondCut event.\\n // The code is duplicated to prevent copying calldata to memory which\\n // causes a Solidity error for two dimensional arrays.\\n function externalCut(Facet[] calldata _diamondCut) internal {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n require(msg.sender == ds.contractOwner, \\\"Must own the contract.\\\");\\n for (uint256 facetIndex; facetIndex < _diamondCut.length; facetIndex++) {\\n address newFacetAddress = _diamondCut[facetIndex].facetAddress;\\n // add or replace function\\n if (newFacetAddress != address(0)) {\\n uint256 facetAddressPosition = ds.facetFunctionSelectors[newFacetAddress].facetAddressPosition;\\n // add new facet address if it does not exist\\n if (facetAddressPosition == 0 && ds.facetFunctionSelectors[newFacetAddress].functionSelectors.length == 0) {\\n LibDiamondCut.hasContractCode(newFacetAddress, \\\"DiamondCutFacet: New facet has no code\\\");\\n facetAddressPosition = ds.facetAddresses.length;\\n ds.facetAddresses.push(newFacetAddress);\\n ds.facetFunctionSelectors[newFacetAddress].facetAddressPosition = uint16(facetAddressPosition);\\n }\\n // add or replace selectors\\n for (uint256 selectorIndex; selectorIndex < _diamondCut[facetIndex].functionSelectors.length; selectorIndex++) {\\n bytes4 selector = _diamondCut[facetIndex].functionSelectors[selectorIndex];\\n address oldFacet = ds.selectorToFacetAndPosition[selector].facetAddress;\\n // add\\n if (oldFacet == address(0)) {\\n LibDiamondCut.addSelector(newFacetAddress, selector);\\n } else {\\n // replace\\n if (oldFacet != newFacetAddress) {\\n LibDiamondCut.removeSelector(selector);\\n LibDiamondCut.addSelector(newFacetAddress, selector);\\n }\\n }\\n }\\n } else {\\n // remove selectors\\n for (uint256 selectorIndex; selectorIndex < _diamondCut[facetIndex].functionSelectors.length; selectorIndex++) {\\n LibDiamondCut.removeSelector(_diamondCut[facetIndex].functionSelectors[selectorIndex]);\\n }\\n }\\n }\\n }\\n}\\n\",\"keccak256\":\"0xe5cefda560bdf00d7e412ef747e28f2076d07b32221ccdfaa607aaab0ca30029\",\"license\":\"MIT\"},\"solc_0.7/diamond/facets/DiamondLoupeFacet.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/******************************************************************************\\\\\\n* Author: Nick Mudge (https://twitter.com/mudgen)\\n*\\n* Implementation of DiamondLoupe interface.\\n/******************************************************************************/\\n\\nimport \\\"../libraries/LibDiamondStorage.sol\\\";\\nimport \\\"../interfaces/IDiamondCut.sol\\\";\\nimport \\\"../interfaces/IDiamondLoupe.sol\\\";\\nimport \\\"../interfaces/IERC165.sol\\\";\\n\\ncontract DiamondLoupeFacet is IDiamondLoupe, IERC165 {\\n // Diamond Loupe Functions\\n ////////////////////////////////////////////////////////////////////\\n /// These functions are expected to be called frequently\\n /// by tools. Therefore the return values are tightly\\n /// packed for efficiency. That means no padding with zeros.\\n\\n // struct Facet {\\n // address facetAddress;\\n // bytes4[] functionSelectors;\\n // }\\n\\n /// @notice Gets all facets and their selectors.\\n /// @return facets_ Facet\\n function facets() external override view returns (Facet[] memory facets_) {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n uint256 numFacets = ds.facetAddresses.length;\\n facets_ = new Facet[](numFacets);\\n for (uint256 i; i < numFacets; i++) {\\n address facetAddress = ds.facetAddresses[i];\\n facets_[i].facetAddress = facetAddress;\\n facets_[i].functionSelectors = ds.facetFunctionSelectors[facetAddress].functionSelectors;\\n }\\n }\\n\\n /// @notice Gets all the function selectors provided by a facet.\\n /// @param _facet The facet address.\\n /// @return facetFunctionSelectors_\\n function facetFunctionSelectors(address _facet) external override view returns (bytes4[] memory facetFunctionSelectors_) {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n facetFunctionSelectors_ = ds.facetFunctionSelectors[_facet].functionSelectors;\\n }\\n\\n /// @notice Get all the facet addresses used by a diamond.\\n /// @return facetAddresses_\\n function facetAddresses() external override view returns (address[] memory facetAddresses_) {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n facetAddresses_ = ds.facetAddresses;\\n }\\n\\n /// @notice Gets the facet that supports the given selector.\\n /// @dev If facet is not found return address(0).\\n /// @param _functionSelector The function selector.\\n /// @return facetAddress_ The facet address.\\n function facetAddress(bytes4 _functionSelector) external override view returns (address facetAddress_) {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n facetAddress_ = ds.selectorToFacetAndPosition[_functionSelector].facetAddress;\\n }\\n\\n // This implements ERC-165.\\n function supportsInterface(bytes4 _interfaceId) external override view returns (bool) {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n return ds.supportedInterfaces[_interfaceId];\\n }\\n}\\n\",\"keccak256\":\"0x4b7366bd3fe648aaa728031852007fa2fb83da852a99fb9914ca00ace29453a0\",\"license\":\"MIT\"},\"solc_0.7/diamond/facets/OwnershipFacet.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/******************************************************************************\\\\\\n* Author: Nick Mudge (https://twitter.com/mudgen)\\n/******************************************************************************/\\n\\nimport \\\"../libraries/LibDiamondStorage.sol\\\";\\nimport \\\"../interfaces/IERC173.sol\\\";\\n\\ncontract OwnershipFacet is IERC173 {\\n function transferOwnership(address newOwner) external override {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n address currentOwner = ds.contractOwner;\\n require(msg.sender == currentOwner, \\\"Must own the contract.\\\");\\n ds.contractOwner = newOwner;\\n emit OwnershipTransferred(currentOwner, newOwner);\\n }\\n\\n function owner() external override view returns (address) {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n return ds.contractOwner;\\n }\\n}\\n\",\"keccak256\":\"0xe09014d34261a3f4275e5a8e0f7081fe576bc0e4cb15a4760df156a9b423e579\",\"license\":\"MIT\"},\"solc_0.7/diamond/interfaces/IDiamondCut.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/******************************************************************************\\\\\\n* Author: Nick Mudge (https://twitter.com/mudgen)\\n/******************************************************************************/\\n\\ninterface IDiamondCut {\\n struct Facet {\\n address facetAddress;\\n bytes4[] functionSelectors;\\n }\\n\\n /// @notice Add/replace/remove any number of functions and optionally execute\\n /// a function with delegatecall\\n /// @param _diamondCut Contains the facet addresses and function selectors\\n /// @param _init The address of the contract or facet to execute _calldata\\n /// @param _calldata A function call, including function selector and arguments\\n /// _calldata is executed with delegatecall on _init\\n function diamondCut(\\n Facet[] calldata _diamondCut,\\n address _init,\\n bytes calldata _calldata\\n ) external;\\n\\n event DiamondCut(Facet[] _diamondCut, address _init, bytes _calldata);\\n}\\n\",\"keccak256\":\"0xba9cbedda8b486e17512639ee5ca6a4de1638b55c26b130e61cbbaa632acdef5\",\"license\":\"MIT\"},\"solc_0.7/diamond/interfaces/IDiamondLoupe.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/******************************************************************************\\\\\\n* Author: Nick Mudge (https://twitter.com/mudgen)\\n/******************************************************************************/\\n\\n// A loupe is a small magnifying glass used to look at diamonds.\\n// These functions look at diamonds\\ninterface IDiamondLoupe {\\n /// These functions are expected to be called frequently\\n /// by tools.\\n\\n struct Facet {\\n address facetAddress;\\n bytes4[] functionSelectors;\\n }\\n\\n /// @notice Gets all facet addresses and their four byte function selectors.\\n /// @return facets_ Facet\\n function facets() external view returns (Facet[] memory facets_);\\n\\n /// @notice Gets all the function selectors supported by a specific facet.\\n /// @param _facet The facet address.\\n /// @return facetFunctionSelectors_\\n function facetFunctionSelectors(address _facet) external view returns (bytes4[] memory facetFunctionSelectors_);\\n\\n /// @notice Get all the facet addresses used by a diamond.\\n /// @return facetAddresses_\\n function facetAddresses() external view returns (address[] memory facetAddresses_);\\n\\n /// @notice Gets the facet that supports the given selector.\\n /// @dev If facet is not found return address(0).\\n /// @param _functionSelector The function selector.\\n /// @return facetAddress_ The facet address.\\n function facetAddress(bytes4 _functionSelector) external view returns (address facetAddress_);\\n}\\n\",\"keccak256\":\"0xde77c3530df288849ad2cc13a6a1a00b0216c019875b153a929b3e770667f07d\",\"license\":\"MIT\"},\"solc_0.7/diamond/interfaces/IERC165.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\ninterface IERC165 {\\n /// @notice Query if a contract implements an interface\\n /// @param interfaceId The interface identifier, as specified in ERC-165\\n /// @dev Interface identification is specified in ERC-165. This function\\n /// uses less than 30,000 gas.\\n /// @return `true` if the contract implements `interfaceID` and\\n /// `interfaceID` is not 0xffffffff, `false` otherwise\\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\\n}\\n\",\"keccak256\":\"0xc19b99fbeaeb943b6d12e6d631b6ae1738aaa498ee49f67caaccc6238fd0d458\",\"license\":\"MIT\"},\"solc_0.7/diamond/interfaces/IERC173.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/// @title ERC-173 Contract Ownership Standard\\n/// Note: the ERC-165 identifier for this interface is 0x7f5828d0\\n/* is ERC165 */\\ninterface IERC173 {\\n /// @dev This emits when ownership of a contract changes.\\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\\n\\n /// @notice Get the address of the owner\\n /// @return The address of the owner.\\n function owner() external view returns (address);\\n\\n /// @notice Set the address of the new owner of the contract\\n /// @dev Set _newOwner to address(0) to renounce any ownership.\\n /// @param _newOwner The address of the new owner of the contract\\n function transferOwnership(address _newOwner) external;\\n}\\n\",\"keccak256\":\"0xdb5c5f069a9337daa33b88c6c9fe72edb31b9ff91bf4a923caf02cb9e95d4b12\",\"license\":\"MIT\"},\"solc_0.7/diamond/libraries/LibDiamondCut.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/******************************************************************************\\\\\\n* Author: Nick Mudge (https://twitter.com/mudgen)\\n*\\n* Implementation of internal diamondCut function.\\n/******************************************************************************/\\n\\nimport \\\"./LibDiamondStorage.sol\\\";\\nimport \\\"../interfaces/IDiamondCut.sol\\\";\\n\\nlibrary LibDiamondCut {\\n event DiamondCut(IDiamondCut.Facet[] _diamondCut, address _init, bytes _calldata);\\n\\n // Non-standard internal function version of diamondCut\\n // This code is almost the same as externalCut, except it is using\\n // 'Facet[] memory _diamondCut' instead of 'Facet[] calldata _diamondCut'\\n // and it DOES issue the DiamondCut event\\n // The code is duplicated to prevent copying calldata to memory which\\n // causes a Solidity error for a two dimensional array.\\n function diamondCut(IDiamondCut.Facet[] memory _diamondCut) internal {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n for (uint256 facetIndex; facetIndex < _diamondCut.length; facetIndex++) {\\n address newFacetAddress = _diamondCut[facetIndex].facetAddress;\\n // add or replace function\\n if (newFacetAddress != address(0)) {\\n uint256 facetAddressPosition = ds.facetFunctionSelectors[newFacetAddress].facetAddressPosition;\\n // add new facet address if it does not exist\\n if (facetAddressPosition == 0 && ds.facetFunctionSelectors[newFacetAddress].functionSelectors.length == 0) {\\n hasContractCode(newFacetAddress, \\\"LibDiamondCut: New facet has no code\\\");\\n facetAddressPosition = ds.facetAddresses.length;\\n ds.facetAddresses.push(newFacetAddress);\\n ds.facetFunctionSelectors[newFacetAddress].facetAddressPosition = uint16(facetAddressPosition);\\n }\\n // add or replace selectors\\n for (uint256 selectorIndex; selectorIndex < _diamondCut[facetIndex].functionSelectors.length; selectorIndex++) {\\n bytes4 selector = _diamondCut[facetIndex].functionSelectors[selectorIndex];\\n address oldFacet = ds.selectorToFacetAndPosition[selector].facetAddress;\\n // add\\n if (oldFacet == address(0)) {\\n addSelector(newFacetAddress, selector);\\n } else {\\n // replace\\n if (oldFacet != newFacetAddress) {\\n removeSelector(selector);\\n addSelector(newFacetAddress, selector);\\n }\\n }\\n }\\n } else {\\n // remove selectors\\n for (uint256 selectorIndex; selectorIndex < _diamondCut[facetIndex].functionSelectors.length; selectorIndex++) {\\n removeSelector(_diamondCut[facetIndex].functionSelectors[selectorIndex]);\\n }\\n }\\n }\\n emit DiamondCut(_diamondCut, address(0), new bytes(0));\\n }\\n\\n function addSelector(address _newFacet, bytes4 _selector) internal {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n uint256 selectorPosition = ds.facetFunctionSelectors[_newFacet].functionSelectors.length;\\n ds.facetFunctionSelectors[_newFacet].functionSelectors.push(_selector);\\n ds.selectorToFacetAndPosition[_selector].facetAddress = _newFacet;\\n ds.selectorToFacetAndPosition[_selector].functionSelectorPosition = uint16(selectorPosition);\\n }\\n\\n function removeSelector(bytes4 _selector) internal {\\n LibDiamondStorage.DiamondStorage storage ds = LibDiamondStorage.diamondStorage();\\n address oldFacet = ds.selectorToFacetAndPosition[_selector].facetAddress;\\n // if function does not exist then do nothing and return\\n if (oldFacet == address(0)) {\\n return;\\n }\\n // replace selector with last selector, then delete last selector\\n uint256 selectorPosition = ds.selectorToFacetAndPosition[_selector].functionSelectorPosition;\\n uint256 lastSelectorPosition = ds.facetFunctionSelectors[oldFacet].functionSelectors.length - 1;\\n bytes4 lastSelector = ds.facetFunctionSelectors[oldFacet].functionSelectors[lastSelectorPosition];\\n // if not the same then replace _selector with lastSelector\\n if (lastSelector != _selector) {\\n ds.facetFunctionSelectors[oldFacet].functionSelectors[selectorPosition] = lastSelector;\\n ds.selectorToFacetAndPosition[lastSelector].functionSelectorPosition = uint16(selectorPosition);\\n }\\n // delete the last selector\\n ds.facetFunctionSelectors[oldFacet].functionSelectors.pop();\\n delete ds.selectorToFacetAndPosition[_selector];\\n\\n // if no more selectors for facet address then delete the facet address\\n if (lastSelectorPosition == 0) {\\n // replace facet address with last facet address and delete last facet address\\n uint256 lastFacetAddressPosition = ds.facetAddresses.length - 1;\\n address lastFacetAddress = ds.facetAddresses[lastFacetAddressPosition];\\n uint256 facetAddressPosition = ds.facetFunctionSelectors[oldFacet].facetAddressPosition;\\n if (oldFacet != lastFacetAddress) {\\n ds.facetAddresses[facetAddressPosition] = lastFacetAddress;\\n ds.facetFunctionSelectors[lastFacetAddress].facetAddressPosition = uint16(facetAddressPosition);\\n }\\n ds.facetAddresses.pop();\\n delete ds.facetFunctionSelectors[oldFacet];\\n }\\n }\\n\\n function hasContractCode(address _contract, string memory _errorMessage) internal view {\\n uint256 contractSize;\\n assembly {\\n contractSize := extcodesize(_contract)\\n }\\n require(contractSize > 0, _errorMessage);\\n }\\n}\\n\",\"keccak256\":\"0x2b0552b7626a43189f62e6b8e7ac6e257a0d6ebe6f03a44d2da12c931a96155b\",\"license\":\"MIT\"},\"solc_0.7/diamond/libraries/LibDiamondStorage.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity ^0.7.1;\\npragma experimental ABIEncoderV2;\\n\\n/******************************************************************************\\\\\\n* Author: Nick Mudge (https://twitter.com/mudgen)\\n/******************************************************************************/\\n\\nlibrary LibDiamondStorage {\\n bytes32 constant DIAMOND_STORAGE_POSITION = keccak256(\\\"diamond.standard.diamond.storage\\\");\\n\\n struct FacetAddressAndPosition {\\n address facetAddress;\\n uint16 functionSelectorPosition; // position in facetFunctionSelectors.functionSelectors array\\n }\\n\\n struct FacetFunctionSelectors {\\n bytes4[] functionSelectors;\\n uint16 facetAddressPosition; // position of facetAddress in facetAddresses array\\n }\\n\\n struct DiamondStorage {\\n // owner of the contract\\n address contractOwner;\\n // maps function selector to the facet address and \\n // the position of the selector in the facetFunctionSelectors.selectors array\\n mapping(bytes4 => FacetAddressAndPosition) selectorToFacetAndPosition;\\n // maps facet addresses to function selectors\\n mapping(address => FacetFunctionSelectors) facetFunctionSelectors;\\n // facet addresses\\n address[] facetAddresses;\\n // Used to query if a contract implements an interface.\\n // Used to implement ERC-165.\\n mapping(bytes4 => bool) supportedInterfaces;\\n }\\n\\n function diamondStorage() internal pure returns (DiamondStorage storage ds) {\\n bytes32 position = DIAMOND_STORAGE_POSITION;\\n assembly {\\n ds.slot := position\\n }\\n }\\n}\\n\",\"keccak256\":\"0xe775d2cb83a52f9bc6341b6331acd86527a7870dca3193cfcad3db6206017ed2\",\"license\":\"MIT\"}},\"version\":1}", "contractFilepath": "solc_0.7/diamond/Diamond.sol", "methodIdentifiers": {}, "gasEstimates": { "creation": { "codeDepositCost": "545000", "executionCost": "infinite", "totalCost": "infinite" }, "external": { "": "infinite" } }, "storageLayout": { "storage": [], "types": null }, "userdoc": { "kind": "user", "methods": {}, "version": 1 }, "devdoc": { "kind": "dev", "methods": {}, "version": 1 } }