{ "contractName": "ERC165Checker", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.6.12+commit.27d51765\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"details\":\"Library used to query support of an interface declared via {IERC165}. Note that these functions return the actual result of the query: they do not `revert` if an interface is not supported. It is up to the caller to decide what to do in these cases.\",\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"@openzeppelin/contracts/introspection/ERC165Checker.sol\":\"ERC165Checker\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/introspection/ERC165Checker.sol\":{\"keccak256\":\"0x1bdefceaba99e08a6c30400bc686e6380c1e914887bf5780db14f965c09aa9d3\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://fa31e8df5c7a5f3434977d3a881ee322c4e81f8486aec4bb859bebd20f23d805\",\"dweb:/ipfs/QmShFfnjPytP2ooLtDj7f2XULXgbsRj4xjrFc9qm9kRe79\"]}},\"version\":1}", "bytecode": "0x60566023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220881c298687e7ae98011f7a3c8464e2e5eec15841d56a2b874a6c1e1b210f926b64736f6c634300060c0033", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220881c298687e7ae98011f7a3c8464e2e5eec15841d56a2b874a6c1e1b210f926b64736f6c634300060c0033", "immutableReferences": {}, "sourceMap": "344:5246:3:-:0;;;;;;;;;;;;;;;;;;;;;;;;;", "deployedSourceMap": "344:5246:3:-:0;;;;;;;;", "source": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.2 <0.8.0;\n\n/**\n * @dev Library used to query support of an interface declared via {IERC165}.\n *\n * Note that these functions return the actual result of the query: they do not\n * `revert` if an interface is not supported. It is up to the caller to decide\n * what to do in these cases.\n */\nlibrary ERC165Checker {\n // As per the EIP-165 spec, no interface should ever match 0xffffffff\n bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;\n\n /*\n * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7\n */\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n\n /**\n * @dev Returns true if `account` supports the {IERC165} interface,\n */\n function supportsERC165(address account) internal view returns (bool) {\n // Any contract that implements ERC165 must explicitly indicate support of\n // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid\n return _supportsERC165Interface(account, _INTERFACE_ID_ERC165) &&\n !_supportsERC165Interface(account, _INTERFACE_ID_INVALID);\n }\n\n /**\n * @dev Returns true if `account` supports the interface defined by\n * `interfaceId`. Support for {IERC165} itself is queried automatically.\n *\n * See {IERC165-supportsInterface}.\n */\n function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {\n // query support of both ERC165 as per the spec and support of _interfaceId\n return supportsERC165(account) &&\n _supportsERC165Interface(account, interfaceId);\n }\n\n /**\n * @dev Returns a boolean array where each value corresponds to the\n * interfaces passed in and whether they're supported or not. This allows\n * you to batch check interfaces for a contract where your expectation\n * is that some interfaces may not be supported.\n *\n * See {IERC165-supportsInterface}.\n *\n * _Available since v3.4._\n */\n function getSupportedInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool[] memory) {\n // an array of booleans corresponding to interfaceIds and whether they're supported or not\n bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);\n\n // query support of ERC165 itself\n if (supportsERC165(account)) {\n // query support of each interface in interfaceIds\n for (uint256 i = 0; i < interfaceIds.length; i++) {\n interfaceIdsSupported[i] = _supportsERC165Interface(account, interfaceIds[i]);\n }\n }\n\n return interfaceIdsSupported;\n }\n\n /**\n * @dev Returns true if `account` supports all the interfaces defined in\n * `interfaceIds`. Support for {IERC165} itself is queried automatically.\n *\n * Batch-querying can lead to gas savings by skipping repeated checks for\n * {IERC165} support.\n *\n * See {IERC165-supportsInterface}.\n */\n function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {\n // query support of ERC165 itself\n if (!supportsERC165(account)) {\n return false;\n }\n\n // query support of each interface in _interfaceIds\n for (uint256 i = 0; i < interfaceIds.length; i++) {\n if (!_supportsERC165Interface(account, interfaceIds[i])) {\n return false;\n }\n }\n\n // all interfaces supported\n return true;\n }\n\n /**\n * @notice Query if a contract implements an interface, does not check ERC165 support\n * @param account The address of the contract to query for support of an interface\n * @param interfaceId The interface identifier, as specified in ERC-165\n * @return true if the contract at account indicates support of the interface with\n * identifier interfaceId, false otherwise\n * @dev Assumes that account contains a contract that supports ERC165, otherwise\n * the behavior of this method is undefined. 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"typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 433, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 394, "src": "2603:7:3", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 434, "name": "interfaceIds", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 397, "src": "2612:12:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[] memory" } }, "id": 436, "indexExpression": { "argumentTypes": null, "id": 435, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 419, "src": "2625:1:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2612:15:3", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } ], "id": 432, "name": "_supportsERC165Interface", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 518, "src": "2578:24:3", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_bytes4_$returns$_t_bool_$", "typeString": "function (address,bytes4) view returns (bool)" } }, "id": 437, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2578:50:3", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "2551:77:3", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 439, "nodeType": "ExpressionStatement", "src": "2551:77:3" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 425, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 422, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 419, "src": "2503:1:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 423, "name": "interfaceIds", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 397, "src": "2507:12:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[] memory" } }, "id": 424, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2507:19:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2503:23:3", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 441, "initializationExpression": { "assignments": [ 419 ], "declarations": [ { "constant": false, "id": 419, "mutability": "mutable", "name": "i", "nodeType": "VariableDeclaration", "overrides": null, "scope": 441, "src": "2488:9:3", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 418, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2488:7:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 421, "initialValue": { "argumentTypes": null, "hexValue": "30", "id": 420, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2500:1:3", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "nodeType": "VariableDeclarationStatement", "src": "2488:13:3" }, "loopExpression": { "expression": { "argumentTypes": null, "id": 427, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "++", "prefix": false, "src": "2528:3:3", "subExpression": { "argumentTypes": null, "id": 426, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 419, "src": "2528:1:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 428, "nodeType": "ExpressionStatement", "src": "2528:3:3" }, "nodeType": "ForStatement", "src": "2483:160:3" } ] } }, { "expression": { "argumentTypes": null, "id": 444, "name": "interfaceIdsSupported", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 407, "src": "2670:21:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_bool_$dyn_memory_ptr", "typeString": "bool[] memory" } }, "functionReturnParameters": 402, "id": 445, "nodeType": "Return", "src": "2663:28:3" } ] }, "documentation": { "id": 392, "nodeType": "StructuredDocumentation", "src": "1650:374:3", "text": " @dev Returns a boolean array where each value corresponds to the\n interfaces passed in and whether they're supported or not. This allows\n you to batch check interfaces for a contract where your expectation\n is that some interfaces may not be supported.\n See {IERC165-supportsInterface}.\n _Available since v3.4._" }, "id": 447, "implemented": true, "kind": "function", "modifiers": [], "name": "getSupportedInterfaces", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 398, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 394, "mutability": "mutable", "name": "account", "nodeType": "VariableDeclaration", "overrides": null, "scope": 447, "src": "2061:15:3", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 393, "name": "address", "nodeType": "ElementaryTypeName", "src": "2061:7:3", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 397, "mutability": "mutable", "name": "interfaceIds", "nodeType": "VariableDeclaration", "overrides": null, "scope": 447, "src": "2078:28:3", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[]" }, "typeName": { "baseType": { "id": 395, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "2078:6:3", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "id": 396, "length": null, "nodeType": "ArrayTypeName", "src": "2078:8:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_storage_ptr", "typeString": "bytes4[]" } }, "value": null, "visibility": "internal" } ], "src": "2060:47:3" }, "returnParameters": { "id": 402, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 401, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 447, "src": "2131:13:3", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_array$_t_bool_$dyn_memory_ptr", "typeString": "bool[]" }, "typeName": { "baseType": { "id": 399, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2131:4:3", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 400, "length": null, "nodeType": "ArrayTypeName", "src": "2131:6:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_bool_$dyn_storage_ptr", "typeString": "bool[]" } }, "value": null, "visibility": "internal" } ], "src": "2130:15:3" }, "scope": 570, "src": "2029:669:3", "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "body": { "id": 492, "nodeType": "Block", "src": "3140:429:3", "statements": [ { "condition": { "argumentTypes": null, "id": 461, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "3196:24:3", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 459, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 450, "src": "3212:7:3", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 458, "name": "supportsERC165", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 371, "src": "3197:14:3", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$", "typeString": "function (address) view returns (bool)" } }, "id": 460, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3197:23:3", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 465, "nodeType": "IfStatement", "src": "3192:67:3", "trueBody": { "id": 464, "nodeType": "Block", "src": "3222:37:3", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "66616c7365", "id": 462, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "3243:5:3", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 457, "id": 463, "nodeType": "Return", "src": "3236:12:3" } ] } }, { "body": { "id": 488, "nodeType": "Block", "src": "3379:126:3", "statements": [ { "condition": { "argumentTypes": null, "id": 483, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "3397:51:3", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 478, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 450, "src": "3423:7:3", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 479, "name": "interfaceIds", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 453, "src": "3432:12:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[] memory" } }, "id": 481, "indexExpression": { "argumentTypes": null, "id": 480, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 467, "src": "3445:1:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3432:15:3", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } ], "id": 477, "name": "_supportsERC165Interface", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 518, "src": "3398:24:3", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_bytes4_$returns$_t_bool_$", "typeString": "function (address,bytes4) view returns (bool)" } }, "id": 482, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3398:50:3", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 487, "nodeType": "IfStatement", "src": "3393:102:3", "trueBody": { "id": 486, "nodeType": "Block", "src": "3450:45:3", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "66616c7365", "id": 484, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "3475:5:3", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 457, "id": 485, "nodeType": "Return", "src": "3468:12:3" } ] } } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 473, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 470, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 467, "src": "3349:1:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 471, "name": "interfaceIds", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 453, "src": "3353:12:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[] memory" } }, "id": 472, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3353:19:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3349:23:3", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 489, "initializationExpression": { "assignments": [ 467 ], "declarations": [ { "constant": false, "id": 467, "mutability": "mutable", "name": "i", "nodeType": "VariableDeclaration", "overrides": null, "scope": 489, "src": "3334:9:3", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 466, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3334:7:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 469, "initialValue": { "argumentTypes": null, "hexValue": "30", "id": 468, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3346:1:3", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "nodeType": "VariableDeclarationStatement", "src": "3334:13:3" }, "loopExpression": { "expression": { "argumentTypes": null, "id": 475, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "++", "prefix": false, "src": "3374:3:3", "subExpression": { "argumentTypes": null, "id": 474, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 467, "src": "3374:1:3", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 476, "nodeType": "ExpressionStatement", "src": "3374:3:3" }, "nodeType": "ForStatement", "src": "3329:176:3" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 490, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "3558:4:3", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 457, "id": 491, "nodeType": "Return", "src": "3551:11:3" } ] }, "documentation": { "id": 448, "nodeType": "StructuredDocumentation", "src": "2704:324:3", "text": " @dev Returns true if `account` supports all the interfaces defined in\n `interfaceIds`. Support for {IERC165} itself is queried automatically.\n Batch-querying can lead to gas savings by skipping repeated checks for\n {IERC165} support.\n See {IERC165-supportsInterface}." }, "id": 493, "implemented": true, "kind": "function", "modifiers": [], "name": "supportsAllInterfaces", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 454, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 450, "mutability": "mutable", "name": "account", "nodeType": "VariableDeclaration", "overrides": null, "scope": 493, "src": "3064:15:3", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 449, "name": "address", "nodeType": "ElementaryTypeName", "src": "3064:7:3", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 453, "mutability": "mutable", "name": "interfaceIds", "nodeType": "VariableDeclaration", "overrides": null, "scope": 493, "src": "3081:28:3", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[]" }, "typeName": { "baseType": { "id": 451, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "3081:6:3", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "id": 452, "length": null, "nodeType": "ArrayTypeName", "src": "3081:8:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_storage_ptr", "typeString": "bytes4[]" } }, "value": null, "visibility": "internal" } ], "src": "3063:47:3" }, "returnParameters": { "id": 457, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 456, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 493, "src": "3134:4:3", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 455, "name": "bool", "nodeType": "ElementaryTypeName", "src": "3134:4:3", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "3133:6:3" }, "scope": 570, "src": "3033:536:3", "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "body": { "id": 517, "nodeType": "Block", "src": "4331:296:3", "statements": [ { "assignments": [ 504, 506 ], "declarations": [ { "constant": false, "id": 504, "mutability": "mutable", "name": "success", "nodeType": "VariableDeclaration", "overrides": null, "scope": 517, "src": "4504:12:3", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 503, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4504:4:3", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 506, "mutability": "mutable", "name": "result", "nodeType": "VariableDeclaration", "overrides": null, "scope": 517, "src": "4518:11:3", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 505, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4518:4:3", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "id": 511, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 508, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 496, "src": "4562:7:3", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 509, "name": "interfaceId", "nodeType": "Identifier", 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