{ "contractName": "Address", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.8.0+commit.c7dfd78e\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"details\":\"Collection of functions related to the address type\",\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"@openzeppelin/contracts/utils/Address.sol\":\"Address\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/utils/Address.sol\":{\"keccak256\":\"0x3336baae5cf23e94274d75336e2d412193be508504aee185e61dc7d58cd05c8a\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://39a05eec7083dfa0cc7e0cbfe6cd1bd085a340af1ede93fdff3ad047c5fb3d8e\",\"dweb:/ipfs/QmVApz5fCUq2QC8gKTsNNdCmcedJ3ETHp68zR5N3WUKS4r\"]}},\"version\":1}", "bytecode": "0x60566050600b82828239805160001a6073146043577f4e487b7100000000000000000000000000000000000000000000000000000000600052600060045260246000fd5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220f85112d30be734ffd7d9a0f38c6e337d00c0404216ac7211131afd3c0a1ea0b464736f6c63430008000033", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220f85112d30be734ffd7d9a0f38c6e337d00c0404216ac7211131afd3c0a1ea0b464736f6c63430008000033", "immutableReferences": {}, "generatedSources": [], "deployedGeneratedSources": [], "sourceMap": "126:7729:8:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;", "deployedSourceMap": "126:7729:8:-:0;;;;;;;;", "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\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 function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n assembly {\n size := extcodesize(account)\n }\n return size > 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 Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(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", "sourcePath": "@openzeppelin\\contracts\\utils\\Address.sol", "ast": { "absolutePath": "@openzeppelin/contracts/utils/Address.sol", "exportedSymbols": { "Address": [ 1807 ] }, "id": 1808, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 1512, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "33:23:8" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 1513, "nodeType": "StructuredDocumentation", "src": "58:67:8", "text": " @dev Collection of functions related to the address type" }, "fullyImplemented": true, "id": 1807, "linearizedBaseContracts": [ 1807 ], "name": "Address", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 1529, "nodeType": "Block", "src": "784:311:8", "statements": [ { "assignments": [ 1522 ], "declarations": [ { "constant": false, "id": 1522, "mutability": "mutable", "name": "size", "nodeType": "VariableDeclaration", "scope": 1529, "src": "981:12:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1521, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "981:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "id": 1523, 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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 ====" }, "id": 1530, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 1517, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1516, "mutability": "mutable", "name": "account", "nodeType": "VariableDeclaration", "scope": 1530, "src": "738:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1515, "name": "address", "nodeType": "ElementaryTypeName", "src": "738:7:8", "stateMutability": "nonpayable", "typeDescriptions": 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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": 1558, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4294967278, 4294967278 ], "referencedDeclaration": 4294967278, "src": "2239:7:8", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 1561, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2239:78:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1562, "nodeType": "ExpressionStatement", "src": "2239:78:8" } ] }, "documentation": { "id": 1531, "nodeType": "StructuredDocumentation", "src": "1101:906:8", "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": 1564, "implemented": true, "kind": "function", "modifiers": [], "name": "sendValue", "nodeType": "FunctionDefinition", "parameters": { "id": 1536, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1533, "mutability": "mutable", "name": "recipient", "nodeType": "VariableDeclaration", "scope": 1564, "src": "2031:25:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 1532, "name": "address", "nodeType": "ElementaryTypeName", "src": "2031:15:8", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "visibility": "internal" }, { "constant": false, "id": 1535, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "scope": 1564, "src": "2058:14:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1534, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2058:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2030:43:8" }, "returnParameters": { "id": 1537, "nodeType": "ParameterList", "parameters": [], "src": "2083:0:8" }, "scope": 1807, "src": "2012:312:8", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 1580, "nodeType": "Block", "src": "3155:84:8", "statements": [ { "expression": { "arguments": [ { "id": 1575, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1567, "src": "3185:6:8", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 1576, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1569, "src": "3193:4:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "hexValue": "416464726573733a206c6f772d6c6576656c2063616c6c206661696c6564", "id": 1577, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3199:32:8", "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": 1574, "name": "functionCall", "nodeType": "Identifier", "overloadedDeclarations": [ 1581, 1601 ], "referencedDeclaration": 1601, "src": "3172:12:8", "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": 1578, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3172:60:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 1573, "id": 1579, "nodeType": "Return", "src": "3165:67:8" } ] }, "documentation": { "id": 1565, "nodeType": "StructuredDocumentation", "src": "2330:731:8", "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": 1581, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "nodeType": "FunctionDefinition", "parameters": { "id": 1570, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1567, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "scope": 1581, "src": "3088:14:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1566, "name": "address", "nodeType": "ElementaryTypeName", "src": "3088:7:8", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 1569, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "scope": 1581, "src": "3104:17:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1568, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3104:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "3087:35:8" }, "returnParameters": { "id": 1573, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1572, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 1581, "src": "3141:12:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1571, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3141:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "3140:14:8" }, "scope": 1807, "src": "3066:173:8", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 1600, "nodeType": "Block", "src": "3608:76:8", "statements": [ { "expression": { "arguments": [ { "id": 1594, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1584, "src": "3647:6:8", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 1595, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1586, "src": "3655:4:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "hexValue": "30", "id": 1596, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3661:1:8", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, { "id": 1597, "name": "errorMessage", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1588, "src": "3664:12:8", "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": 1593, "name": "functionCallWithValue", "nodeType": "Identifier", "overloadedDeclarations": [ 1621, 1671 ], "referencedDeclaration": 1671, "src": "3625:21:8", "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": 1598, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3625:52:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 1592, "id": 1599, "nodeType": "Return", "src": "3618:59:8" } ] }, "documentation": { "id": 1582, "nodeType": "StructuredDocumentation", "src": "3245:211:8", "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": 1601, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "nodeType": "FunctionDefinition", "parameters": { "id": 1589, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1584, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "scope": 1601, "src": "3492:14:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1583, "name": "address", "nodeType": "ElementaryTypeName", "src": "3492:7:8", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 1586, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "scope": 1601, "src": "3516:17:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1585, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3516:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" }, { "constant": false, "id": 1588, "mutability": "mutable", "name": "errorMessage", "nodeType": "VariableDeclaration", "scope": 1601, "src": "3543:26:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 1587, "name": "string", "nodeType": "ElementaryTypeName", "src": "3543:6:8", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "visibility": "internal" } ], "src": "3482:93:8" }, "returnParameters": { "id": 1592, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1591, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 1601, "src": "3594:12:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1590, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3594:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "3593:14:8" }, "scope": 1807, "src": "3461:223:8", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 1620, "nodeType": "Block", "src": "4189:111:8", "statements": [ { "expression": { "arguments": [ { "id": 1614, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1604, "src": "4228:6:8", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 1615, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1606, "src": "4236:4:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "id": 1616, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1608, "src": "4242:5:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "hexValue": "416464726573733a206c6f772d6c6576656c2063616c6c20776974682076616c7565206661696c6564", "id": 1617, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4249:43:8", "typeDescriptions": { "typeIdentifier": "t_stringliteral_88a4a0b5e975840320a0475d4027005235904fdb5ece94df156f3d717cb2dbfc", "typeString": "literal_string \"Address: low-level call with value failed\"" }, "value": "Address: low-level call with value failed" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_stringliteral_88a4a0b5e975840320a0475d4027005235904fdb5ece94df156f3d717cb2dbfc", "typeString": "literal_string \"Address: low-level call with value failed\"" } ], "id": 1613, "name": "functionCallWithValue", "nodeType": "Identifier", "overloadedDeclarations": [ 1621, 1671 ], "referencedDeclaration": 1671, "src": "4206:21:8", "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": 1618, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4206:87:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 1612, "id": 1619, "nodeType": "Return", "src": "4199:94:8" } ] }, "documentation": { "id": 1602, "nodeType": "StructuredDocumentation", "src": "3690:351:8", "text": " @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n but also transferring `value` wei to `target`.\n Requirements:\n - the calling contract must have an ETH balance of at least `value`.\n - the called Solidity function must be `payable`.\n _Available since v3.1._" }, "id": 1621, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCallWithValue", "nodeType": "FunctionDefinition", "parameters": { "id": 1609, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1604, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "scope": 1621, "src": "4086:14:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1603, "name": "address", "nodeType": "ElementaryTypeName", "src": "4086:7:8", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 1606, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "scope": 1621, "src": "4110:17:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1605, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4110:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" }, { "constant": false, "id": 1608, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "scope": 1621, "src": "4137:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1607, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4137:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "4076:80:8" }, "returnParameters": { "id": 1612, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1611, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 1621, "src": "4175:12:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1610, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4175:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "4174:14:8" }, "scope": 1807, "src": "4046:254:8", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 1670, "nodeType": "Block", "src": "4727:320:8", "statements": [ { "expression": { "arguments": [ { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1642, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "expression": { "arguments": [ { "id": 1638, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4294967268, "src": "4753:4:8", "typeDescriptions": { "typeIdentifier": "t_contract$_Address_$1807", "typeString": "library Address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_Address_$1807", "typeString": "library Address" } ], "id": 1637, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4745:7:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 1636, "name": "address", "nodeType": "ElementaryTypeName", "src": "4745:7:8", "typeDescriptions": {} } }, "id": 1639, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4745:13:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 1640, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "balance", "nodeType": "MemberAccess", "src": "4745:21:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "id": 1641, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1628, "src": "4770:5:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4745:30:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "hexValue": "416464726573733a20696e73756666696369656e742062616c616e636520666f722063616c6c", "id": 1643, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4777:40:8", "typeDescriptions": { "typeIdentifier": "t_stringliteral_565f1a77334fc4792800921178c71e4521acffab18ff9e7885b49377ee80ab4c", "typeString": "literal_string \"Address: insufficient balance for call\"" }, "value": "Address: insufficient balance for call" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_565f1a77334fc4792800921178c71e4521acffab18ff9e7885b49377ee80ab4c", "typeString": "literal_string \"Address: insufficient balance for call\"" } ], "id": 1635, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4294967278, 4294967278 ], "referencedDeclaration": 4294967278, "src": "4737:7:8", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 1644, "isConstant": false, 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"bytes" } }, "visibility": "internal" } ], "src": "7306:14:8" }, "scope": 1807, "src": "7161:692:8", "stateMutability": "pure", "virtual": false, "visibility": "internal" } ], "scope": 1808, "src": "126:7729:8" } ], "src": "33:7823:8" }, "legacyAST": { "absolutePath": "@openzeppelin/contracts/utils/Address.sol", "exportedSymbols": { "Address": [ 1807 ] }, "id": 1808, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 1512, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "33:23:8" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 1513, "nodeType": "StructuredDocumentation", "src": "58:67:8", "text": " @dev Collection of functions related to the address type" }, "fullyImplemented": true, "id": 1807, "linearizedBaseContracts": [ 1807 ], "name": "Address", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 1529, "nodeType": "Block", "src": "784:311:8", "statements": [ { "assignments": [ 1522 ], "declarations": [ { "constant": false, "id": 1522, "mutability": "mutable", "name": "size", "nodeType": "VariableDeclaration", "scope": 1529, "src": "981:12:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1521, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "981:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "id": 1523, "nodeType": "VariableDeclarationStatement", "src": "981:12:8" }, { "AST": { "nodeType": "YulBlock", "src": "1012:52:8", "statements": [ { "nodeType": "YulAssignment", "src": "1026:28:8", "value": { "arguments": [ { "name": "account", "nodeType": "YulIdentifier", "src": "1046:7:8" } ], "functionName": { "name": "extcodesize", "nodeType": "YulIdentifier", "src": "1034:11:8" }, "nodeType": "YulFunctionCall", "src": "1034:20:8" }, "variableNames": [ { "name": "size", "nodeType": "YulIdentifier", "src": "1026:4:8" } ] } ] }, "evmVersion": "istanbul", "externalReferences": [ { "declaration": 1516, "isOffset": false, "isSlot": false, "src": "1046:7:8", "valueSize": 1 }, { "declaration": 1522, "isOffset": false, "isSlot": false, "src": "1026:4:8", "valueSize": 1 } ], "id": 1524, "nodeType": "InlineAssembly", "src": "1003:61:8" }, { "expression": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1527, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 1525, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1522, "src": "1080:4:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "hexValue": "30", "id": 1526, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1087:1:8", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1080:8:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 1520, "id": 1528, "nodeType": "Return", "src": "1073:15:8" } ] }, "documentation": { "id": 1514, "nodeType": "StructuredDocumentation", "src": "148:565:8", "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 ====" }, "id": 1530, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "parameters": { "id": 1517, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1516, "mutability": "mutable", "name": "account", "nodeType": "VariableDeclaration", "scope": 1530, "src": "738:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1515, "name": "address", "nodeType": "ElementaryTypeName", "src": "738:7:8", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "737:17:8" }, "returnParameters": { "id": 1520, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1519, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 1530, "src": "778:4:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 1518, "name": "bool", "nodeType": "ElementaryTypeName", "src": "778:4:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "777:6:8" }, "scope": 1807, "src": "718:377:8", "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "body": { "id": 1563, "nodeType": "Block", "src": "2083:241:8", "statements": [ { "expression": { "arguments": [ { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1545, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "expression": { "arguments": [ { "id": 1541, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4294967268, "src": "2109:4:8", "typeDescriptions": { "typeIdentifier": "t_contract$_Address_$1807", "typeString": "library Address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_Address_$1807", "typeString": "library Address" } ], "id": 1540, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2101:7:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 1539, "name": "address", "nodeType": "ElementaryTypeName", "src": "2101:7:8", "typeDescriptions": {} } }, "id": 1542, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2101:13:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 1543, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "balance", "nodeType": "MemberAccess", "src": "2101:21:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "id": 1544, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1535, "src": "2126:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2101:31:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "hexValue": "416464726573733a20696e73756666696369656e742062616c616e6365", "id": 1546, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2134:31:8", "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": 1538, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4294967278, 4294967278 ], "referencedDeclaration": 4294967278, "src": "2093:7:8", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 1547, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2093:73:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1548, "nodeType": "ExpressionStatement", "src": "2093:73:8" }, { "assignments": [ 1550, null ], "declarations": [ { "constant": false, "id": 1550, "mutability": "mutable", "name": "success", "nodeType": "VariableDeclaration", "scope": 1563, "src": "2178:12:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 1549, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2178:4:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" }, null ], "id": 1557, "initialValue": { "arguments": [ { "hexValue": "", "id": 1555, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2226:2:8", "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": 1551, "name": "recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1533, "src": "2196:9:8", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "id": 1552, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "call", "nodeType": "MemberAccess", "src": "2196:14:8", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 1554, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "names": [ "value" ], "nodeType": "FunctionCallOptions", "options": [ { "id": 1553, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1535, "src": "2218:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "src": "2196:29:8", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$value", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 1556, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2196:33:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "tuple(bool,bytes memory)" } }, "nodeType": "VariableDeclarationStatement", "src": "2177:52:8" }, { "expression": { "arguments": [ { "id": 1559, "name": "success", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1550, "src": "2247:7:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "hexValue": "416464726573733a20756e61626c6520746f2073656e642076616c75652c20726563697069656e74206d61792068617665207265766572746564", "id": 1560, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2256:60:8", "typeDescriptions": { "typeIdentifier": "t_stringliteral_51ddaa38748c0a1144620fb5bfe8edab31ea437571ad591a7734bbfd0429aeae", "typeString": "literal_string \"Address: unable to send value, recipient may have reverted\"" }, "value": "Address: unable to send value, recipient may have reverted" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_51ddaa38748c0a1144620fb5bfe8edab31ea437571ad591a7734bbfd0429aeae", "typeString": "literal_string \"Address: unable to send value, recipient may have reverted\"" } ], "id": 1558, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4294967278, 4294967278 ], "referencedDeclaration": 4294967278, "src": "2239:7:8", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 1561, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2239:78:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1562, "nodeType": "ExpressionStatement", "src": "2239:78:8" } ] }, "documentation": { "id": 1531, "nodeType": "StructuredDocumentation", "src": "1101:906:8", "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": 1564, "implemented": true, "kind": "function", "modifiers": [], "name": "sendValue", "nodeType": "FunctionDefinition", "parameters": { "id": 1536, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1533, "mutability": "mutable", "name": "recipient", "nodeType": "VariableDeclaration", "scope": 1564, "src": "2031:25:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 1532, "name": "address", "nodeType": "ElementaryTypeName", "src": "2031:15:8", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "visibility": "internal" }, { "constant": false, "id": 1535, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "scope": 1564, "src": "2058:14:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1534, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2058:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2030:43:8" }, "returnParameters": { "id": 1537, "nodeType": "ParameterList", "parameters": [], "src": "2083:0:8" }, "scope": 1807, "src": "2012:312:8", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 1580, "nodeType": "Block", "src": "3155:84:8", "statements": [ { "expression": { "arguments": [ { "id": 1575, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1567, "src": "3185:6:8", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 1576, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1569, "src": "3193:4:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "hexValue": "416464726573733a206c6f772d6c6576656c2063616c6c206661696c6564", "id": 1577, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3199:32:8", "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": 1574, "name": "functionCall", "nodeType": "Identifier", "overloadedDeclarations": [ 1581, 1601 ], "referencedDeclaration": 1601, "src": "3172:12:8", "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": 1578, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3172:60:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 1573, "id": 1579, "nodeType": "Return", "src": "3165:67:8" } ] }, "documentation": { "id": 1565, "nodeType": "StructuredDocumentation", "src": "2330:731:8", "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": 1581, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "nodeType": "FunctionDefinition", "parameters": { "id": 1570, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1567, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "scope": 1581, "src": "3088:14:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1566, "name": "address", "nodeType": "ElementaryTypeName", "src": "3088:7:8", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": 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"src": "3141:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "3140:14:8" }, "scope": 1807, "src": "3066:173:8", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 1600, "nodeType": "Block", "src": "3608:76:8", "statements": [ { "expression": { "arguments": [ { "id": 1594, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1584, "src": "3647:6:8", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 1595, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1586, "src": "3655:4:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "hexValue": "30", "id": 1596, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", 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