{ "fileName": "ERC1820Implementer.sol", "contractName": "ERC1820ImplementerUpgradeSafe", "source": "pragma solidity ^0.6.0;\n\nimport \"./IERC1820Implementer.sol\";\nimport \"../Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC1820Implementer} interface.\n *\n * Contracts may inherit from this and call {_registerInterfaceForAddress} to\n * declare their willingness to be implementers.\n * {IERC1820Registry-setInterfaceImplementer} should then be called for the\n * registration to be complete.\n */\ncontract ERC1820ImplementerUpgradeSafe is Initializable, IERC1820Implementer {\n function __ERC1820Implementer_init() internal initializer {\n __ERC1820Implementer_init_unchained();\n }\n\n function __ERC1820Implementer_init_unchained() internal initializer {\n\n\n }\n\n bytes32 constant private _ERC1820_ACCEPT_MAGIC = keccak256(abi.encodePacked(\"ERC1820_ACCEPT_MAGIC\"));\n\n mapping(bytes32 => mapping(address => bool)) private _supportedInterfaces;\n\n /**\n * See {IERC1820Implementer-canImplementInterfaceForAddress}.\n */\n function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) public view override returns (bytes32) {\n return _supportedInterfaces[interfaceHash][account] ? _ERC1820_ACCEPT_MAGIC : bytes32(0x00);\n }\n\n /**\n * @dev Declares the contract as willing to be an implementer of\n * `interfaceHash` for `account`.\n *\n * See {IERC1820Registry-setInterfaceImplementer} and\n * {IERC1820Registry-interfaceHash}.\n */\n function _registerInterfaceForAddress(bytes32 interfaceHash, address account) internal virtual {\n _supportedInterfaces[interfaceHash][account] = true;\n }\n\n uint256[49] private __gap;\n}\n", "sourcePath": "contracts/introspection/ERC1820Implementer.sol", "sourceMap": "402:1213:14:-:0;;;;5:9:-1;2:2;;;27:1;24;17:12;2:2;402:1213:14;;;;;;;", "deployedSourceMap": "402:1213:14:-:0;;;;5:9:-1;2:2;;;27:1;24;17:12;2:2;402:1213:14;;;;;;;;;;;;;;;;12:1:-1;9;2:12;955:228:14;;;;;;15:2:-1;10:3;7:11;4:2;;;31:1;28;21:12;4:2;-1:-1;955:228:14;;;;;;-1:-1:-1;;;;;955:228:14;;:::i;:::-;;;;;;;;;;;;;;;;;1066:7;1092:35;;;:20;:35;;;;;;;;-1:-1:-1;;;;;1092:44:14;;;;;;;;;;;;:84;;1171:4;1092:84;;;745:40;;;-1:-1:-1;;;745:40:14;;;;;;;;;;26:21:-1;;;745:40:14;22:32:-1;6:49;;745:40:14;;;;;;;735:51;;;;;1092:84;1085:91;955:228;-1:-1:-1;;;955:228:14:o", "abi": [ { "inputs": [ { "internalType": "bytes32", "name": "interfaceHash", "type": "bytes32" }, { "internalType": "address", "name": "account", "type": "address" } ], "name": "canImplementInterfaceForAddress", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "view", "type": "function" } ], "ast": { "absolutePath": "contracts/introspection/ERC1820Implementer.sol", "exportedSymbols": { "ERC1820ImplementerUpgradeSafe": [ 2767 ] }, "id": 2768, "nodeType": "SourceUnit", "nodes": [ { "id": 2685, "literals": [ "solidity", "^", "0.6", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:14" }, { "absolutePath": "contracts/introspection/IERC1820Implementer.sol", "file": "./IERC1820Implementer.sol", "id": 2686, "nodeType": "ImportDirective", "scope": 2768, "sourceUnit": 2794, "src": "25:35:14", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/Initializable.sol", "file": "../Initializable.sol", "id": 2687, "nodeType": "ImportDirective", "scope": 2768, "sourceUnit": 1408, "src": "61:30:14", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 2689, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1407, "src": "444:13:14", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$1407", "typeString": "contract Initializable" } }, "id": 2690, "nodeType": "InheritanceSpecifier", "src": "444:13:14" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2691, "name": "IERC1820Implementer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2793, "src": "459:19:14", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC1820Implementer_$2793", "typeString": "contract IERC1820Implementer" } }, "id": 2692, "nodeType": "InheritanceSpecifier", "src": "459:19:14" } ], "contractDependencies": [ 1407, 2793 ], "contractKind": "contract", "documentation": { "id": 2688, "nodeType": "StructuredDocumentation", "src": "93:308:14", "text": "@dev Implementation of the {IERC1820Implementer} interface.\n * Contracts may inherit from this and call {_registerInterfaceForAddress} to\ndeclare their willingness to be implementers.\n{IERC1820Registry-setInterfaceImplementer} should then be called for the\nregistration to be complete." }, "fullyImplemented": true, "id": 2767, "linearizedBaseContracts": [ 2767, 2793, 1407 ], "name": "ERC1820ImplementerUpgradeSafe", "nodeType": "ContractDefinition", "nodes": 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