{ "fileName": "Address.sol", "contractName": "Address", "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\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 in 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 // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\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 // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\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(address target, bytes memory data, string memory errorMessage) 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(address target, bytes memory data, uint256 value) 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(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n return _functionCallWithValue(target, data, value, errorMessage);\n }\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n require(isContract(target), \"Address: call to non-contract\");\n\n // solhint-disable-next-line avoid-low-level-calls\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\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 // solhint-disable-next-line no-inline-assembly\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": "contracts/utils/Address.sol", "sourceMap": "126:5754:104:-:0;;;;;;;;;;;;;;;;;;;;;;;;;", "deployedSourceMap": "126:5754:104:-:0;;;;;;;;", "abi": [], "ast": { "absolutePath": "contracts/utils/Address.sol", "exportedSymbols": { "Address": [ 12811 ] }, "id": 12812, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 12618, "literals": [ "solidity", "^", "0.7", ".0" ], "nodeType": "PragmaDirective", "src": "33:23:104" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 12619, "nodeType": "StructuredDocumentation", "src": "58:67:104", "text": " @dev Collection of functions related to the address type" }, "fullyImplemented": true, "id": 12811, "linearizedBaseContracts": [ 12811 ], "name": "Address", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 12635, "nodeType": "Block", "src": "784:347:104", "statements": [ { "assignments": [ 12628 ], "declarations": [ { "constant": false, "id": 12628, "mutability": "mutable", "name": "size", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12635, "src": "981:12:104", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { 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"t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1116:8:104", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 12626, "id": 12634, "nodeType": "Return", "src": "1109:15:104" } ] }, "documentation": { "id": 12620, "nodeType": "StructuredDocumentation", "src": "148:565:104", "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": 12636, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { 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"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": { "argumentTypes": null, "id": 12657, "name": "recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12639, "src": "2309:9:104", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "id": 12658, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "call", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2309:14:104", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 12660, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "names": [ "value" ], "nodeType": "FunctionCallOptions", "options": [ { "argumentTypes": null, "id": 12659, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12641, "src": "2332:6:104", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "src": "2309:31:104", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$value", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 12662, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": 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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": 12670, "implemented": true, "kind": "function", "modifiers": [], "name": "sendValue", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12642, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12639, "mutability": "mutable", "name": "recipient", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12670, "src": "2067:25:104", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 12638, "name": "address", "nodeType": "ElementaryTypeName", "src": "2067:15:104", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12641, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12670, "src": "2094:14:104", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12640, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2094:7:104", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2066:43:104" }, "returnParameters": { "id": 12643, "nodeType": "ParameterList", "parameters": [], "src": "2119:0:104" }, "scope": 12811, "src": "2048:391:104", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 12686, "nodeType": "Block", "src": "3269:82:104", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12681, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12673, "src": "3297:6:104", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12682, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12675, "src": "3305:4:104", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "hexValue": "416464726573733a206c6f772d6c6576656c2063616c6c206661696c6564", "id": 12683, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3311:32:104", "subdenomination": null, "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": 12680, "name": "functionCall", "nodeType": "Identifier", "overloadedDeclarations": [ 12687, 12707 ], "referencedDeclaration": 12707, "src": "3284:12:104", "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": 12684, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3284:60:104", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 12679, "id": 12685, "nodeType": "Return", "src": "3277:67:104" } ] }, "documentation": { "id": 12671, "nodeType": "StructuredDocumentation", "src": "2445:730:104", "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": 12687, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12676, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12673, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12687, "src": "3202:14:104", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12672, "name": "address", "nodeType": "ElementaryTypeName", "src": "3202:7:104", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12675, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12687, "src": "3218:17:104", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12674, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3218:5:104", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "3201:35:104" }, "returnParameters": { "id": 12679, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12678, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12687, "src": "3255:12:104", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12677, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3255:5:104", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "3254:14:104" }, "scope": 12811, "src": "3180:171:104", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 12706, "nodeType": "Block", "src": "3690:77:104", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12700, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12690, "src": "3730:6:104", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12701, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12692, "src": "3738:4:104", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "hexValue": "30", "id": 12702, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3744:1:104", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, { "argumentTypes": null, "id": 12703, "name": "errorMessage", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12694, "src": "3747:12:104", "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": 12699, "name": "_functionCallWithValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12810, "src": "3707:22:104", "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": 12704, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3707:53:104", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 12698, "id": 12705, "nodeType": "Return", "src": "3700:60:104" } ] }, "documentation": { "id": 12688, "nodeType": "StructuredDocumentation", "src": "3357:211:104", "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": 12707, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12695, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12690, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12707, "src": "3595:14:104", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12689, "name": "address", "nodeType": "ElementaryTypeName", "src": "3595:7:104", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12692, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12707, "src": "3611:17:104", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12691, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3611:5:104", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12694, "mutability": "mutable", "name": "errorMessage", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12707, "src": "3630:26:104", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 12693, "name": "string", "nodeType": "ElementaryTypeName", "src": "3630:6:104", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "3594:63:104" }, "returnParameters": { "id": 12698, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12697, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12707, "src": "3676:12:104", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12696, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3676:5:104", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "3675:14:104" }, "scope": 12811, "src": "3573:194:104", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 12726, "nodeType": "Block", "src": "4242:111:104", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12720, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12710, "src": "4281:6:104", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12721, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12712, "src": "4289:4:104", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12722, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12714, "src": "4295:5:104", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "416464726573733a206c6f772d6c6576656c2063616c6c20776974682076616c7565206661696c6564", "id": 12723, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4302:43:104", "subdenomination": null, "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": 12719, "name": "functionCallWithValue", "nodeType": "Identifier", "overloadedDeclarations": [ 12727, 12760 ], "referencedDeclaration": 12760, "src": "4259:21:104", "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": 12724, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4259:87:104", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 12718, "id": 12725, "nodeType": "Return", "src": "4252:94:104" } ] }, "documentation": { "id": 12708, "nodeType": "StructuredDocumentation", "src": "3773:351:104", "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": 12727, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCallWithValue", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12715, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12710, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12727, "src": "4160:14:104", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12709, "name": "address", "nodeType": "ElementaryTypeName", "src": "4160:7:104", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12712, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12727, "src": "4176:17:104", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12711, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4176:5:104", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12714, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12727, "src": "4195:13:104", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12713, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4195:7:104", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4159:50:104" }, "returnParameters": { "id": 12718, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12717, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12727, "src": "4228:12:104", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12716, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4228:5:104", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "4227:14:104" }, "scope": 12811, "src": "4129:224:104", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 12759, "nodeType": "Block", "src": "4742:172:104", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 12748, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12744, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "4768:4:104", "typeDescriptions": { "typeIdentifier": "t_contract$_Address_$12811", "typeString": "library Address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_Address_$12811", "typeString": "library Address" } ], "id": 12743, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4760:7:104", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12742, "name": "address", "nodeType": "ElementaryTypeName", "src": "4760:7:104", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12745, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4760:13:104", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 12746, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "balance", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4760:21:104", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "id": 12747, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12734, "src": "4785:5:104", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4760:30:104", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "416464726573733a20696e73756666696369656e742062616c616e636520666f722063616c6c", "id": 12749, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4792:40:104", "subdenomination": null, "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": 12741, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "4752:7:104", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 12750, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4752:81:104", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12751, "nodeType": "ExpressionStatement", "src": "4752:81:104" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12753, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12730, "src": "4873:6:104", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12754, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12732, "src": "4881:4:104", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12755, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12734, "src": "4887:5:104", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12756, "name": "errorMessage", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12736, "src": "4894:12:104", "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_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } ], "id": 12752, "name": "_functionCallWithValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12810, "src": "4850:22:104", "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": 12757, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4850:57:104", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 12740, "id": 12758, "nodeType": "Return", "src": "4843:64:104" } ] }, "documentation": { "id": 12728, "nodeType": "StructuredDocumentation", "src": "4359:237:104", "text": " @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n with `errorMessage` as a fallback revert reason when `target` reverts.\n 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