{ "contractName": "InterfaceResolver", "abi": [ { "constant": true, "inputs": [ { "name": "node", "type": "bytes32" } ], "name": "addr", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "node", "type": "bytes32" }, { "name": "coinType", "type": "uint256" }, { "name": "a", "type": "bytes" } ], "name": "setAddr", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "node", "type": "bytes32" }, { "name": "a", "type": "address" } ], "name": "setAddr", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "node", "type": "bytes32" }, { "name": "coinType", "type": "uint256" } ], "name": "addr", "outputs": [ { "name": "", "type": "bytes" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "node", "type": "bytes32" }, { "indexed": true, "name": "interfaceID", "type": "bytes4" }, { "indexed": false, "name": "implementer", "type": "address" } ], "name": "InterfaceChanged", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "node", "type": "bytes32" }, { "indexed": false, "name": "a", "type": "address" } ], "name": "AddrChanged", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "node", "type": "bytes32" }, { "indexed": false, "name": "coinType", "type": "uint256" }, { "indexed": false, "name": "newAddress", "type": "bytes" } ], "name": "AddressChanged", "type": "event" }, { "constant": false, "inputs": [ { "name": "node", "type": "bytes32" }, { "name": "interfaceID", "type": "bytes4" }, { "name": "implementer", "type": "address" } ], "name": "setInterface", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "node", "type": "bytes32" }, { "name": "interfaceID", "type": "bytes4" } ], "name": "interfaceImplementer", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "interfaceID", "type": "bytes4" } ], "name": "supportsInterface", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "pure", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.8+commit.23d335f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":true,\"inputs\":[{\"name\":\"interfaceID\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"pure\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"interfaceID\",\"type\":\"bytes4\"}],\"name\":\"interfaceImplementer\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"}],\"name\":\"addr\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"coinType\",\"type\":\"uint256\"},{\"name\":\"a\",\"type\":\"bytes\"}],\"name\":\"setAddr\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"a\",\"type\":\"address\"}],\"name\":\"setAddr\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"interfaceID\",\"type\":\"bytes4\"},{\"name\":\"implementer\",\"type\":\"address\"}],\"name\":\"setInterface\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"coinType\",\"type\":\"uint256\"}],\"name\":\"addr\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"node\",\"type\":\"bytes32\"},{\"indexed\":true,\"name\":\"interfaceID\",\"type\":\"bytes4\"},{\"indexed\":false,\"name\":\"implementer\",\"type\":\"address\"}],\"name\":\"InterfaceChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"node\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"a\",\"type\":\"address\"}],\"name\":\"AddrChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"node\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"coinType\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"newAddress\",\"type\":\"bytes\"}],\"name\":\"AddressChanged\",\"type\":\"event\"}],\"devdoc\":{\"methods\":{\"addr(bytes32)\":{\"params\":{\"node\":\"The ENS node to query.\"},\"return\":\"The associated address.\"},\"interfaceImplementer(bytes32,bytes4)\":{\"params\":{\"interfaceID\":\"The EIP 168 interface ID to check for.\",\"node\":\"The ENS node to query.\"},\"return\":\"The address that implements this interface, or 0 if the interface is unsupported.\"},\"setAddr(bytes32,address)\":{\"params\":{\"a\":\"The address to set.\",\"node\":\"The node to update.\"}},\"setInterface(bytes32,bytes4,address)\":{\"params\":{\"implementer\":\"The address of a contract that implements this interface for this node.\",\"interfaceID\":\"The EIP 168 interface ID.\",\"node\":\"The node to update.\"}}}},\"userdoc\":{\"methods\":{\"addr(bytes32)\":{\"notice\":\"Returns the address associated with an ENS node.\"},\"interfaceImplementer(bytes32,bytes4)\":{\"notice\":\"Returns the address of a contract that implements the specified interface for this name. If an implementer has not been set for this interfaceID and name, the resolver will query the contract at `addr()`. If `addr()` is set, a contract exists at that address, and that contract implements EIP168 and returns `true` for the specified interfaceID, its address will be returned.\"},\"setAddr(bytes32,address)\":{\"notice\":\"Sets the address associated with an ENS node. May only be called by the owner of that node in the ENS registry.\"},\"setInterface(bytes32,bytes4,address)\":{\"notice\":\"Sets an interface associated with a name. Setting the address to 0 restores the default behaviour of querying the contract at `addr()` for interface support.\"}}}},\"settings\":{\"compilationTarget\":{\"/home/user/Dropbox/projects/resolvers/contracts/profiles/InterfaceResolver.sol\":\"InterfaceResolver\"},\"evmVersion\":\"petersburg\",\"libraries\":{},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/user/Dropbox/projects/resolvers/contracts/ResolverBase.sol\":{\"keccak256\":\"0xfc7d550960829127576d6fc3080513d74ef18a6d7057d0d9262ce071890053e8\",\"urls\":[\"bzzr://81e5565403a67f558d12c787f53f40ff19a5da99c648f8a4f99f2caa449ca0e6\"]},\"/home/user/Dropbox/projects/resolvers/contracts/profiles/AddrResolver.sol\":{\"keccak256\":\"0xbe84f840b10f6ddc3d695d5905fe4034569c646bdf56b1367c16271aa92071c6\",\"urls\":[\"bzzr://c97941ee4075d43abe371cc52f3bfa018d7dc93c7cfbb72da565ecaa72996381\"]},\"/home/user/Dropbox/projects/resolvers/contracts/profiles/InterfaceResolver.sol\":{\"keccak256\":\"0x6398dc59dd38501acd6a716173793e84aa1c454c3e21c190e10ddbe54dd8be41\",\"urls\":[\"bzzr://0d539232d308722b6a434ed5e9a22b0c4cb849c641b6d0739f2f83e566cb59f1\"]}},\"version\":1}", "bytecode": "0x", "deployedBytecode": "0x", "sourceMap": "", "deployedSourceMap": "", "source": "pragma solidity ^0.5.0;\n\nimport \"../ResolverBase.sol\";\nimport \"./AddrResolver.sol\";\n\ncontract InterfaceResolver is ResolverBase, AddrResolver {\n bytes4 constant private INTERFACE_INTERFACE_ID = bytes4(keccak256(\"interfaceImplementer(bytes32,bytes4)\"));\n bytes4 private constant INTERFACE_META_ID = 0x01ffc9a7;\n\n event InterfaceChanged(bytes32 indexed node, bytes4 indexed interfaceID, address implementer);\n\n mapping(bytes32=>mapping(bytes4=>address)) interfaces;\n\n /**\n * Sets an interface associated with a name.\n * Setting the address to 0 restores the default behaviour of querying the contract at `addr()` for interface support.\n * @param node The node to update.\n * @param interfaceID The EIP 168 interface ID.\n * @param implementer The address of a contract that implements this interface for this node.\n */\n function setInterface(bytes32 node, bytes4 interfaceID, address implementer) external authorised(node) {\n interfaces[node][interfaceID] = implementer;\n emit InterfaceChanged(node, interfaceID, implementer);\n }\n\n /**\n * Returns the address of a contract that implements the specified interface for this name.\n * If an implementer has not been set for this interfaceID and name, the resolver will query\n * the contract at `addr()`. If `addr()` is set, a contract exists at that address, and that\n * contract implements EIP168 and returns `true` for the specified interfaceID, its address\n * will be returned.\n * @param node The ENS node to query.\n * @param interfaceID The EIP 168 interface ID to check for.\n * @return The address that implements this interface, or 0 if the interface is unsupported.\n */\n function interfaceImplementer(bytes32 node, bytes4 interfaceID) external view returns (address) {\n address implementer = interfaces[node][interfaceID];\n if(implementer != address(0)) {\n return implementer;\n }\n\n address a = addr(node);\n if(a == address(0)) {\n return address(0);\n }\n\n (bool success, bytes memory returnData) = a.staticcall(abi.encodeWithSignature(\"supportsInterface(bytes4)\", INTERFACE_META_ID));\n if(!success || returnData.length < 32 || returnData[31] == 0) {\n // EIP 168 not supported by target\n return address(0);\n }\n\n (success, returnData) = a.staticcall(abi.encodeWithSignature(\"supportsInterface(bytes4)\", interfaceID));\n if(!success || returnData.length < 32 || returnData[31] == 0) {\n // Specified interface not supported by target\n return address(0);\n }\n\n return a;\n }\n\n function supportsInterface(bytes4 interfaceID) public pure returns(bool) {\n return interfaceID == INTERFACE_INTERFACE_ID || super.supportsInterface(interfaceID);\n }\n}\n", "sourcePath": "/home/user/Dropbox/projects/resolvers/contracts/profiles/InterfaceResolver.sol", "ast": { "absolutePath": "/home/user/Dropbox/projects/resolvers/contracts/profiles/InterfaceResolver.sol", "exportedSymbols": { "InterfaceResolver": [ 1645 ] }, "id": 1646, "nodeType": "SourceUnit", "nodes": [ { "id": 1460, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:10" }, { "absolutePath": "/home/user/Dropbox/projects/resolvers/contracts/ResolverBase.sol", "file": "../ResolverBase.sol", "id": 1461, "nodeType": "ImportDirective", "scope": 1646, "sourceUnit": 663, "src": "25:29:10", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/home/user/Dropbox/projects/resolvers/contracts/profiles/AddrResolver.sol", "file": "./AddrResolver.sol", "id": 1462, "nodeType": "ImportDirective", "scope": 1646, "sourceUnit": 958, "src": "55:28:10", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 1463, "name": "ResolverBase", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 662, "src": "115:12:10", "typeDescriptions": { "typeIdentifier": "t_contract$_ResolverBase_$662", "typeString": "contract ResolverBase" } }, "id": 1464, "nodeType": "InheritanceSpecifier", "src": "115:12:10" }, { "arguments": null, "baseName": { "contractScope": null, "id": 1465, "name": "AddrResolver", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 957, "src": "129:12:10", "typeDescriptions": { "typeIdentifier": "t_contract$_AddrResolver_$957", "typeString": "contract AddrResolver" } }, "id": 1466, "nodeType": "InheritanceSpecifier", "src": "129:12:10" } ], "contractDependencies": [ 662, 957 ], "contractKind": "contract", "documentation": null, "fullyImplemented": false, "id": 1645, "linearizedBaseContracts": [ 1645, 957, 662 ], "name": "InterfaceResolver", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 1473, "name": "INTERFACE_INTERFACE_ID", "nodeType": "VariableDeclaration", "scope": 1645, "src": "148:106:10", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 1467, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "148:6:10", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "696e74657266616365496d706c656d656e74657228627974657333322c62797465733429", "id": 1470, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "214:38:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_124a319c1247f4318c3c16c7e9cc865d0fb5d80d7bf02f56cafc0d14da020850", "typeString": "literal_string \"interfaceImplementer(bytes32,bytes4)\"" }, "value": "interfaceImplementer(bytes32,bytes4)" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_124a319c1247f4318c3c16c7e9cc865d0fb5d80d7bf02f56cafc0d14da020850", "typeString": "literal_string \"interfaceImplementer(bytes32,bytes4)\"" } ], "id": 1469, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4127, "src": "204:9:10", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 1471, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "204:49:10", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 1468, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "197:6:10", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes4_$", "typeString": "type(bytes4)" }, "typeName": "bytes4" }, "id": 1472, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "197:57:10", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "visibility": "private" }, { "constant": true, "id": 1476, 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"parameters": [ { "constant": false, "id": 1478, "indexed": true, "name": "node", "nodeType": "VariableDeclaration", "scope": 1484, "src": "344:20:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 1477, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "344:7:10", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1480, "indexed": true, "name": "interfaceID", "nodeType": "VariableDeclaration", "scope": 1484, "src": "366:26:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 1479, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "366:6:10", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" 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"nodeType": "ElementaryTypeName", "src": "429:7:10", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "421:42:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_mapping$_t_bytes4_$_t_address_$_$", "typeString": "mapping(bytes32 => mapping(bytes4 => address))" }, "valueType": { "id": 1488, "keyType": { "id": 1486, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "446:6:10", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "Mapping", "src": "438:24:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes4_$_t_address_$", "typeString": "mapping(bytes4 => address)" }, "valueType": { "id": 1487, "name": "address", "nodeType": "ElementaryTypeName", "src": "454:7:10", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } } }, "value": null, "visibility": "internal" }, { "body": { "id": 1516, 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"storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 1631, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2747:4:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2746:6:10" }, "scope": 1645, "src": "2680:174:10", "stateMutability": "pure", "superFunction": 956, "visibility": "public" } ], "scope": 1646, "src": "85:2771:10" } ], "src": "0:2857:10" }, "compiler": { "name": "solc", "version": "0.5.8+commit.23d335f2.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.16", "updatedAt": "2020-02-10T18:46:21.036Z", "devdoc": { "methods": { "addr(bytes32)": { "params": { "node": "The ENS node to query." }, "return": "The associated address." }, "interfaceImplementer(bytes32,bytes4)": { "params": { "interfaceID": "The EIP 168 interface ID to check for.", "node": "The ENS node to query." }, "return": "The address that implements this interface, or 0 if the interface is unsupported." }, "setAddr(bytes32,address)": { "params": { "a": "The address to set.", "node": "The node to update." } }, "setInterface(bytes32,bytes4,address)": { "params": { "implementer": "The address of a contract that implements this interface for this node.", "interfaceID": "The EIP 168 interface ID.", "node": "The node to update." } } } }, "userdoc": { "methods": { "addr(bytes32)": { "notice": "Returns the address associated with an ENS node." }, "interfaceImplementer(bytes32,bytes4)": { "notice": "Returns the address of a contract that implements the specified interface for this name. If an implementer has not been set for this interfaceID and name, the resolver will query the contract at `addr()`. If `addr()` is set, a contract exists at that address, and that contract implements EIP168 and returns `true` for the specified interfaceID, its address will be returned." }, "setAddr(bytes32,address)": { "notice": "Sets the address associated with an ENS node. May only be called by the owner of that node in the ENS registry." }, "setInterface(bytes32,bytes4,address)": { "notice": "Sets an interface associated with a name. Setting the address to 0 restores the default behaviour of querying the contract at `addr()` for interface support." } } } }