{
  "fileName": "IERC1820Registry.sol",
  "contractName": "IERC1820Registry",
  "source": "pragma solidity ^0.6.0;\n\n/**\n * @dev Interface of the global ERC1820 Registry, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1820[EIP]. Accounts may register\n * implementers for interfaces in this registry, as well as query support.\n *\n * Implementers may be shared by multiple accounts, and can also implement more\n * than a single interface for each account. Contracts can implement interfaces\n * for themselves, but externally-owned accounts (EOA) must delegate this to a\n * contract.\n *\n * {IERC165} interfaces can also be queried via the registry.\n *\n * For an in-depth explanation and source code analysis, see the EIP text.\n */\ninterface IERC1820Registry {\n    /**\n     * @dev Sets `newManager` as the manager for `account`. A manager of an\n     * account is able to set interface implementers for it.\n     *\n     * By default, each account is its own manager. Passing a value of `0x0` in\n     * `newManager` will reset the manager to this initial state.\n     *\n     * Emits a {ManagerChanged} event.\n     *\n     * Requirements:\n     *\n     * - the caller must be the current manager for `account`.\n     */\n    function setManager(address account, address newManager) external;\n\n    /**\n     * @dev Returns the manager for `account`.\n     *\n     * See {setManager}.\n     */\n    function getManager(address account) external view returns (address);\n\n    /**\n     * @dev Sets the `implementer` contract as ``account``'s implementer for\n     * `interfaceHash`.\n     *\n     * `account` being the zero address is an alias for the caller's address.\n     * The zero address can also be used in `implementer` to remove an old one.\n     *\n     * See {interfaceHash} to learn how these are created.\n     *\n     * Emits an {InterfaceImplementerSet} event.\n     *\n     * Requirements:\n     *\n     * - the caller must be the current manager for `account`.\n     * - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not\n     * end in 28 zeroes).\n     * - `implementer` must implement {IERC1820Implementer} and return true when\n     * queried for support, unless `implementer` is the caller. See\n     * {IERC1820Implementer-canImplementInterfaceForAddress}.\n     */\n    function setInterfaceImplementer(address account, bytes32 interfaceHash, address implementer) external;\n\n    /**\n     * @dev Returns the implementer of `interfaceHash` for `account`. If no such\n     * implementer is registered, returns the zero address.\n     *\n     * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28\n     * zeroes), `account` will be queried for support of it.\n     *\n     * `account` being the zero address is an alias for the caller's address.\n     */\n    function getInterfaceImplementer(address account, bytes32 interfaceHash) external view returns (address);\n\n    /**\n     * @dev Returns the interface hash for an `interfaceName`, as defined in the\n     * corresponding\n     * https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP].\n     */\n    function interfaceHash(string calldata interfaceName) external pure returns (bytes32);\n\n    /**\n     *  @notice Updates the cache with whether the contract implements an ERC165 interface or not.\n     *  @param account Address of the contract for which to update the cache.\n     *  @param interfaceId ERC165 interface for which to update the cache.\n     */\n    function updateERC165Cache(address account, bytes4 interfaceId) external;\n\n    /**\n     *  @notice Checks whether a contract implements an ERC165 interface or not.\n     *  If the result is not cached a direct lookup on the contract address is performed.\n     *  If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling\n     *  {updateERC165Cache} with the contract address.\n     *  @param account Address of the contract to check.\n     *  @param interfaceId ERC165 interface to check.\n     *  @return True if `account` implements `interfaceId`, false otherwise.\n     */\n    function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool);\n\n    /**\n     *  @notice Checks whether a contract implements an ERC165 interface or not without using nor updating the cache.\n     *  @param account Address of the contract to check.\n     *  @param interfaceId ERC165 interface to check.\n     *  @return True if `account` implements `interfaceId`, false otherwise.\n     */\n    function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool);\n\n    event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer);\n\n    event ManagerChanged(address indexed account, address indexed newManager);\n}\n",
  "sourcePath": "contracts/introspection/IERC1820Registry.sol",
  "sourceMap": "",
  "deployedSourceMap": "",
  "abi": [
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "account",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "bytes32",
          "name": "interfaceHash",
          "type": "bytes32"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "implementer",
          "type": "address"
        }
      ],
      "name": "InterfaceImplementerSet",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "account",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "newManager",
          "type": "address"
        }
      ],
      "name": "ManagerChanged",
      "type": "event"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        },
        {
          "internalType": "bytes32",
          "name": "interfaceHash",
          "type": "bytes32"
        }
      ],
      "name": "getInterfaceImplementer",
      "outputs": [
        {
          "internalType": "address",
          "name": "",
          "type": "address"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        }
      ],
      "name": "getManager",
      "outputs": [
        {
          "internalType": "address",
          "name": "",
          "type": "address"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        },
        {
          "internalType": "bytes4",
          "name": "interfaceId",
          "type": "bytes4"
        }
      ],
      "name": "implementsERC165Interface",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        },
        {
          "internalType": "bytes4",
          "name": "interfaceId",
          "type": "bytes4"
        }
      ],
      "name": "implementsERC165InterfaceNoCache",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "string",
          "name": "interfaceName",
          "type": "string"
        }
      ],
      "name": "interfaceHash",
      "outputs": [
        {
          "internalType": "bytes32",
          "name": "",
          "type": "bytes32"
        }
      ],
      "stateMutability": "pure",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        },
        {
          "internalType": "bytes32",
          "name": "interfaceHash",
          "type": "bytes32"
        },
        {
          "internalType": "address",
          "name": "implementer",
          "type": "address"
        }
      ],
      "name": "setInterfaceImplementer",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "newManager",
          "type": "address"
        }
      ],
      "name": "setManager",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        },
        {
          "internalType": "bytes4",
          "name": "interfaceId",
          "type": "bytes4"
        }
      ],
      "name": "updateERC165Cache",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    }
  ],
  "ast": {
    "absolutePath": "contracts/introspection/IERC1820Registry.sol",
    "exportedSymbols": {
      "IERC1820Registry": [
        2883
      ]
    },
    "id": 2884,
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 2795,
        "literals": [
          "solidity",
          "^",
          "0.6",
          ".0"
        ],
        "nodeType": "PragmaDirective",
        "src": "0:23:17"
      },
      {
        "abstract": false,
        "baseContracts": [],
        "contractDependencies": [],
        "contractKind": "interface",
        "documentation": {
          "id": 2796,
          "nodeType": "StructuredDocumentation",
          "src": "25:619:17",
          "text": "@dev Interface of the global ERC1820 Registry, as defined in the\nhttps://eips.ethereum.org/EIPS/eip-1820[EIP]. Accounts may register\nimplementers for interfaces in this registry, as well as query support.\n * Implementers may be shared by multiple accounts, and can also implement more\nthan a single interface for each account. Contracts can implement interfaces\nfor themselves, but externally-owned accounts (EOA) must delegate this to a\ncontract.\n * {IERC165} interfaces can also be queried via the registry.\n * For an in-depth explanation and source code analysis, see the EIP text."
        },
        "fullyImplemented": false,
        "id": 2883,
        "linearizedBaseContracts": [
          2883
        ],
        "name": "IERC1820Registry",
        "nodeType": "ContractDefinition",
        "nodes": [
          {
            "body": null,
            "documentation": {
              "id": 2797,
              "nodeType": "StructuredDocumentation",
              "src": "678:445:17",
              "text": "@dev Sets `newManager` as the manager for `account`. A manager of an\naccount is able to set interface implementers for it.\n     * By default, each account is its own manager. Passing a value of `0x0` in\n`newManager` will reset the manager to this initial state.\n     * Emits a {ManagerChanged} event.\n     * Requirements:\n     * - the caller must be the current manager for `account`."
            },
            "functionSelector": "5df8122f",
            "id": 2804,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "setManager",
            "nodeType": "FunctionDefinition",
            "overrides": null,
            "parameters": {
              "id": 2802,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 2799,
                  "mutability": "mutable",
                  "name": "account",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 2804,
                  "src": "1148:15:17",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
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                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "1148:7:17",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 2801,
                  "mutability": "mutable",
                  "name": "newManager",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 2804,
                  "src": "1165:18:17",
                  "stateVariable": false,
                  "storageLocation": "default",
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                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 2800,
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                    "src": "1165:7:17",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
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                  "visibility": "internal"
                }
              ],
              "src": "1147:37:17"
            },
            "returnParameters": {
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              "src": "1193:0:17"
            },
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            "src": "1128:66:17",
            "stateMutability": "nonpayable",
            "virtual": false,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": {
              "id": 2805,
              "nodeType": "StructuredDocumentation",
              "src": "1200:90:17",
              "text": "@dev Returns the manager for `account`.\n     * See {setManager}."
            },
            "functionSelector": "3d584063",
            "id": 2812,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
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              "parameters": [
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                  "constant": false,
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                  "scope": 2812,
                  "src": "1315:15:17",
                  "stateVariable": false,
                  "storageLocation": "default",
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                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
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                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
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                  "visibility": "internal"
                }
              ],
              "src": "1314:17:17"
            },
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              "parameters": [
                {
                  "constant": false,
                  "id": 2810,
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                  "src": "1355:7:17",
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                    "typeIdentifier": "t_address",
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            "src": "1295:69:17",
            "stateMutability": "view",
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            "visibility": "external"
          },
          {
            "body": null,
            "documentation": {
              "id": 2813,
              "nodeType": "StructuredDocumentation",
              "src": "1370:815:17",
              "text": "@dev Sets the `implementer` contract as ``account``'s implementer for\n`interfaceHash`.\n     * `account` being the zero address is an alias for the caller's address.\nThe zero address can also be used in `implementer` to remove an old one.\n     * See {interfaceHash} to learn how these are created.\n     * Emits an {InterfaceImplementerSet} event.\n     * Requirements:\n     * - the caller must be the current manager for `account`.\n- `interfaceHash` must not be an {IERC165} interface id (i.e. it must not\nend in 28 zeroes).\n- `implementer` must implement {IERC1820Implementer} and return true when\nqueried for support, unless `implementer` is the caller. See\n{IERC1820Implementer-canImplementInterfaceForAddress}."
            },
            "functionSelector": "29965a1d",
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            "implemented": false,
            "kind": "function",
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                  "name": "account",
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                  "src": "2223:15:17",
                  "stateVariable": false,
                  "storageLocation": "default",
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                    "typeString": "address"
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                    "src": "2223:7:17",
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                  "src": "2240:21:17",
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                    }
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              "src": "2299:382:17",
              "text": "@dev Returns the implementer of `interfaceHash` for `account`. If no such\nimplementer is registered, returns the zero address.\n     * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28\nzeroes), `account` will be queried for support of it.\n     * `account` being the zero address is an alias for the caller's address."
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          {
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              "src": "2797:196:17",
              "text": "@dev Returns the interface hash for an `interfaceName`, as defined in the\ncorresponding\nhttps://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP]."
            },
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