{ "abi": [], "allSourcePaths": { "82": "node_modules/@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol" }, "ast": { "absolutePath": "node_modules/@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol", "exportedSymbols": { "AddressUpgradeable": [ 16246 ] }, "id": 16247, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 16005, "literals": [ "solidity", "^", "0.8", ".1" ], "nodeType": "PragmaDirective", "src": "101:23:82" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 16006, "nodeType": "StructuredDocumentation", "src": "126:67:82", "text": " @dev Collection of functions related to the address type" }, "fullyImplemented": true, "id": 16246, "linearizedBaseContracts": [ 16246 ], "name": "AddressUpgradeable", "nameLocation": "202:18:82", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 16020, "nodeType": "Block", "src": "1252:254:82", "statements": [ { "expression": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 16018, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "expression": { "expression": { "id": 16014, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16009, "src": "1476:7:82", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 16015, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "code", "nodeType": "MemberAccess", "src": "1476:12:82", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 16016, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "src": "1476:19:82", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "hexValue": "30", "id": 16017, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1498:1:82", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1476:23:82", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 16013, "id": 16019, "nodeType": "Return", "src": "1469:30:82" } ] }, "documentation": { "id": 16007, "nodeType": "StructuredDocumentation", "src": "227:954:82", "text": " @dev Returns true if `account` is a contract.\n [IMPORTANT]\n ====\n It is unsafe to assume that an address for which this function returns\n false is an externally-owned account (EOA) and not a contract.\n Among others, `isContract` will return false for the following\n types of addresses:\n - an externally-owned account\n - a contract in construction\n - an address where a contract will be created\n - an address where a contract lived, but was destroyed\n ====\n [IMPORTANT]\n ====\n You shouldn't rely on `isContract` to protect against flash loan attacks!\n Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n constructor.\n ====" }, "id": 16021, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nameLocation": "1195:10:82", "nodeType": "FunctionDefinition", "parameters": { "id": 16010, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 16009, "mutability": "mutable", "name": "account", "nameLocation": "1214:7:82", "nodeType": "VariableDeclaration", "scope": 16021, "src": "1206:15:82", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 16008, "name": "address", "nodeType": "ElementaryTypeName", "src": "1206:7:82", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "1205:17:82" }, "returnParameters": { "id": 16013, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 16012, "mutability": "mutable", "name": "", "nameLocation": "-1:-1:-1", "nodeType": "VariableDeclaration", "scope": 16021, "src": "1246:4:82", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 16011, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1246:4:82", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "1245:6:82" }, "scope": 16246, "src": "1186:320:82", "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "body": { "id": 16054, "nodeType": "Block", "src": "2494:241:82", "statements": [ { "expression": { "arguments": [ { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 16036, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "expression": { "arguments": [ { "id": 16032, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "2520:4:82", "typeDescriptions": { "typeIdentifier": "t_contract$_AddressUpgradeable_$16246", "typeString": "library AddressUpgradeable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_AddressUpgradeable_$16246", "typeString": "library AddressUpgradeable" } ], "id": 16031, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2512:7:82", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 16030, "name": "address", "nodeType": "ElementaryTypeName", "src": "2512:7:82", "typeDescriptions": {} } }, "id": 16033, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2512:13:82", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 16034, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "balance", "nodeType": "MemberAccess", "src": "2512:21:82", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "id": 16035, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16026, "src": "2537:6:82", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2512:31:82", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "hexValue": "416464726573733a20696e73756666696369656e742062616c616e6365", "id": 16037, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2545:31:82", "typeDescriptions": { "typeIdentifier": "t_stringliteral_5597a22abd0ef5332f8053862eb236db7590f17e2b93a53f63a103becfb561f9", "typeString": "literal_string \"Address: insufficient balance\"" }, "value": "Address: insufficient balance" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_5597a22abd0ef5332f8053862eb236db7590f17e2b93a53f63a103becfb561f9", "typeString": "literal_string \"Address: insufficient balance\"" } ], "id": 16029, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "2504:7:82", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 16038, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2504:73:82", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 16039, "nodeType": "ExpressionStatement", "src": "2504:73:82" }, { "assignments": [ 16041, null ], "declarations": [ { "constant": false, "id": 16041, "mutability": "mutable", "name": "success", "nameLocation": "2594:7:82", "nodeType": "VariableDeclaration", "scope": 16054, "src": "2589:12:82", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 16040, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2589:4:82", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" }, null ], "id": 16048, "initialValue": { "arguments": [ { "hexValue": "", "id": 16046, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2637:2:82", "typeDescriptions": { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, "value": "" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "expression": { "id": 16042, "name": "recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16024, "src": "2607:9:82", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "id": 16043, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "call", "nodeType": "MemberAccess", "src": "2607:14:82", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 16045, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "names": [ "value" ], "nodeType": "FunctionCallOptions", "options": [ { "id": 16044, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16026, "src": "2629:6:82", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "src": "2607:29:82", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$value", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 16047, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2607:33:82", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "tuple(bool,bytes memory)" } }, "nodeType": "VariableDeclarationStatement", "src": "2588:52:82" }, { "expression": { "arguments": [ { "id": 16050, "name": "success", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16041, "src": "2658:7:82", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "hexValue": "416464726573733a20756e61626c6520746f2073656e642076616c75652c20726563697069656e74206d61792068617665207265766572746564", "id": 16051, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2667:60:82", "typeDescriptions": { "typeIdentifier": "t_stringliteral_51ddaa38748c0a1144620fb5bfe8edab31ea437571ad591a7734bbfd0429aeae", "typeString": "literal_string \"Address: unable to send value, recipient may have reverted\"" }, "value": "Address: unable to send value, recipient may have reverted" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_51ddaa38748c0a1144620fb5bfe8edab31ea437571ad591a7734bbfd0429aeae", "typeString": "literal_string \"Address: unable to send value, recipient may have reverted\"" } ], "id": 16049, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "2650:7:82", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 16052, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2650:78:82", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 16053, "nodeType": "ExpressionStatement", "src": "2650:78:82" } ] }, "documentation": { "id": 16022, "nodeType": "StructuredDocumentation", "src": "1512:906:82", "text": " @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n `recipient`, forwarding all available gas and reverting on errors.\n https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n of certain opcodes, possibly making contracts go over the 2300 gas limit\n imposed by `transfer`, making them unable to receive funds via\n `transfer`. {sendValue} removes this limitation.\n https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n IMPORTANT: because control is transferred to `recipient`, care must be\n taken to not create reentrancy vulnerabilities. Consider using\n {ReentrancyGuard} or the\n https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]." }, "id": 16055, "implemented": true, "kind": "function", "modifiers": [], "name": "sendValue", "nameLocation": "2432:9:82", "nodeType": "FunctionDefinition", "parameters": { "id": 16027, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 16024, "mutability": "mutable", "name": "recipient", "nameLocation": "2458:9:82", "nodeType": "VariableDeclaration", "scope": 16055, "src": "2442:25:82", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 16023, "name": "address", "nodeType": "ElementaryTypeName", "src": "2442:15:82", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "visibility": "internal" }, { "constant": false, "id": 16026, "mutability": "mutable", "name": "amount", "nameLocation": "2477:6:82", "nodeType": "VariableDeclaration", "scope": 16055, "src": "2469:14:82", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 16025, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2469:7:82", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2441:43:82" }, "returnParameters": { "id": 16028, "nodeType": "ParameterList", "parameters": [], "src": "2494:0:82" }, "scope": 16246, "src": "2423:312:82", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 16071, "nodeType": "Block", "src": "3566:84:82", "statements": [ { "expression": { "arguments": [ { "id": 16066, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16058, "src": "3596:6:82", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 16067, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16060, "src": "3604:4:82", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "hexValue": "416464726573733a206c6f772d6c6576656c2063616c6c206661696c6564", "id": 16068, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3610:32:82", "typeDescriptions": { "typeIdentifier": "t_stringliteral_24d7ab5d382116e64324f19950ca9340b8af1ddeb09a8d026e0a3c6a01dcc9df", "typeString": "literal_string \"Address: low-level call failed\"" }, "value": "Address: low-level call failed" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_stringliteral_24d7ab5d382116e64324f19950ca9340b8af1ddeb09a8d026e0a3c6a01dcc9df", "typeString": "literal_string \"Address: low-level call failed\"" } ], "id": 16065, "name": "functionCall", "nodeType": "Identifier", "overloadedDeclarations": [ 16072, 16092 ], "referencedDeclaration": 16092, "src": "3583:12:82", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_bytes_memory_ptr_$_t_string_memory_ptr_$returns$_t_bytes_memory_ptr_$", "typeString": "function (address,bytes memory,string memory) returns (bytes memory)" } }, "id": 16069, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3583:60:82", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 16064, "id": 16070, "nodeType": "Return", "src": "3576:67:82" } ] }, "documentation": { "id": 16056, "nodeType": "StructuredDocumentation", "src": "2741:731:82", "text": " @dev Performs a Solidity function call using a low level `call`. A\n plain `call` is an unsafe replacement for a function call: use this\n function instead.\n If `target` reverts with a revert reason, it is bubbled up by this\n function (like regular Solidity function calls).\n Returns the raw returned data. To convert to the expected return value,\n use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n Requirements:\n - `target` must be a contract.\n - calling `target` with `data` must not revert.\n _Available since v3.1._" }, "id": 16072, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "nameLocation": "3486:12:82", "nodeType": "FunctionDefinition", "parameters": { "id": 16061, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 16058, "mutability": "mutable", "name": "target", "nameLocation": "3507:6:82", "nodeType": "VariableDeclaration", "scope": 16072, "src": "3499:14:82", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 16057, "name": "address", "nodeType": "ElementaryTypeName", "src": "3499:7:82", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 16060, "mutability": "mutable", "name": "data", "nameLocation": "3528:4:82", "nodeType": "VariableDeclaration", "scope": 16072, "src": "3515:17:82", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 16059, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3515:5:82", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "3498:35:82" }, "returnParameters": { "id": 16064, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 16063, "mutability": "mutable", "name": "", "nameLocation": "-1:-1:-1", "nodeType": "VariableDeclaration", "scope": 16072, "src": "3552:12:82", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 16062, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3552:5:82", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "3551:14:82" }, "scope": 16246, "src": "3477:173:82", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 16091, "nodeType": "Block", "src": "4019:76:82", "statements": [ { "expression": { "arguments": [ { "id": 16085, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16075, "src": "4058:6:82", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 16086, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16077, "src": "4066:4:82", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "hexValue": "30", "id": 16087, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4072:1:82", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, { "id": 16088, "name": "errorMessage", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16079, "src": "4075:12:82", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } ], "id": 16084, "name": "functionCallWithValue", "nodeType": "Identifier", "overloadedDeclarations": [ 16112, 16162 ], "referencedDeclaration": 16162, "src": "4036:21:82", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_bytes_memory_ptr_$_t_uint256_$_t_string_memory_ptr_$returns$_t_bytes_memory_ptr_$", "typeString": "function (address,bytes memory,uint256,string memory) returns (bytes memory)" } }, "id": 16089, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4036:52:82", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 16083, "id": 16090, "nodeType": "Return", "src": "4029:59:82" } ] }, "documentation": { "id": 16073, "nodeType": "StructuredDocumentation", "src": "3656:211:82", "text": " @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n `errorMessage` as a fallback revert reason when `target` reverts.\n _Available since v3.1._" }, "id": 16092, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "nameLocation": "3881:12:82", "nodeType": "FunctionDefinition", "parameters": { "id": 16080, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 16075, "mutability": "mutable", "name": "target", "nameLocation": "3911:6:82", "nodeType": "VariableDeclaration", "scope": 16092, "src": "3903:14:82", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 16074, "name": "address", "nodeType": "ElementaryTypeName", "src": "3903:7:82", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 16077, "mutability": "mutable", "name": "data", "nameLocation": "3940:4:82", "nodeType": "VariableDeclaration", "scope": 16092, "src": "3927:17:82", "stateVariable": false, "storageLocation": "memory", 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"offset": [ 194, 7316 ], "op": "REVERT", "path": "82" } }, "sha1": "e3d80a4b81ebd820a04da292e5c243fdf246c709", "source": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n", "sourceMap": "194:7122:82:-:0;;;;;;;;;;;;;;;-1:-1:-1;;;194:7122:82;;;;;;;;;;;;;;;;;", "sourcePath": "node_modules/@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol", "type": "library" }