@dolomite-exchange/dolomite-margin

{ "contractName": "SafeExternalCallback", "abi": [ { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "primaryAccountOwner", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "primaryAccountNumber", "type": "uint256" }, { "indexed": false, "internalType": "string", "name": "reason", "type": "string" } ], "name": "LogExternalCallbackFailure", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "primaryAccountOwner", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "primaryAccountNumber", "type": "uint256" } ], "name": "LogExternalCallbackSuccess", "type": "event" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"primaryAccountOwner\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"primaryAccountNumber\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"string\",\"name\":\"reason\",\"type\":\"string\"}],\"name\":\"LogExternalCallbackFailure\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"primaryAccountOwner\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"primaryAccountNumber\",\"type\":\"uint256\"}],\"name\":\"LogExternalCallbackSuccess\",\"type\":\"event\"}],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/SafeExternalCallback.sol\":\"SafeExternalCallback\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":10000},\"remappings\":[]},\"sources\":{\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/interfaces/IExternalCallback.sol\":{\"keccak256\":\"0xd8134eac006b0a59b71cbcca82dfce7ce092a57c13a8383ebf0e8bc90c0df3e7\",\"urls\":[\"bzz-raw://ccead8bdcc71402ae7b1d8fb9bc1527081a5eb14f98a5157f5c6f27f21f8ad31\",\"dweb:/ipfs/QmdnDvTiX3EDm93ahjnZabNNgoyQzGtKpfbQUNtJe7t8Ts\"]},\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Account.sol\":{\"keccak256\":\"0x2059276ea5e478bd5ac7f2712e7b1b6c85d291c647a54b264909044844828e67\",\"urls\":[\"bzz-raw://f153777051d12131b13a57e5c3af10a2670927cfc7d22c9519ab20c9b4b9bc89\",\"dweb:/ipfs/QmQMP3qS5xDAVGYKDfNkbkSqBKozQGQsGqX4e8VyjRtxPS\"]},\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/DolomiteMarginMath.sol\":{\"keccak256\":\"0x53f205f6a779d579be29faa9412c806a892b3e605fff092dfd9d14d936fa019f\",\"urls\":[\"bzz-raw://0ff936f89602a63b8e6a4eb4ce8f87673c0f45b7ce29694920905a3f0b5a6a69\",\"dweb:/ipfs/QmbYME9BeEvPC1ndV8EaUDX5fDMghLc3rocNUxFtgHmg8m\"]},\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/EnumerableSet.sol\":{\"keccak256\":\"0x41a3460e34b7b8635d936e35e6568ceb5354b638f53b884530e0d4875fa0f151\",\"urls\":[\"bzz-raw://d1a5ba866ee95d455afe5075dadd91fc71c2806371f2c1b358a1f67c632bb0df\",\"dweb:/ipfs/QmW4qCjmsG8J3UJv97GwDLDM7wt1K4yLDKAwzWMY7TFYi5\"]},\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/ExcessivelySafeCall.sol\":{\"keccak256\":\"0x9369468538c371057c907f84d438cec6b47673711fe289cc3779f8671314e06b\",\"urls\":[\"bzz-raw://0f59a670f4bc5cf1bd3dd58bdf6c31723d9d84d9da7d9283d6860cdf5f33b7c5\",\"dweb:/ipfs/QmTGuvD5WQD2z56GH35HoPJivKPeeEpbXidJVcbXZyT23C\"]},\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Require.sol\":{\"keccak256\":\"0x05a2a90b41b6a5f42f0a72da63d015fb0b406a9ba2172823352e522e8bf3a606\",\"urls\":[\"bzz-raw://19883f0c6d33266f756ec5c3d17539524aa24b993c46c33f8400801d09373a6c\",\"dweb:/ipfs/QmYX2fwK3vQQDSZLMrc5wMfeb8RWrcC9CGX8XECLty8QDk\"]},\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/SafeExternalCallback.sol\":{\"keccak256\":\"0xd308a1ab320de20780f7041ea5efd9568f8692e1ed6cf512b967ab63c791a8ff\",\"urls\":[\"bzz-raw://4a904b056f094be598396a90a5ba5297213934cfc2816848a494469ce249edd4\",\"dweb:/ipfs/QmcmeezMFPntDLNS1EY4j5THgRJUeyscgLv55WwxbFoiaY\"]},\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Types.sol\":{\"keccak256\":\"0xe1bab8c8799d83e86c7a49aaf815d8e3bc8d09562d46d44d921500db5e98de0e\",\"urls\":[\"bzz-raw://8ea3d0cc4fdab6dd9bba545a792170f939b342d8d1a7051c1c6365009af72658\",\"dweb:/ipfs/QmaLJgbavu88eEit6JPqfWnw6NmGBDZfveMXxumgWywBFG\"]},\"@openzeppelin/contracts/math/Math.sol\":{\"keccak256\":\"0x4b5aa451e4e8801478708f94b118a7821c0500d676255eaf89fc78c14856ce4e\",\"urls\":[\"bzz-raw://bed15b3f35ed05505efc8fb5cb01d06c52230fbcaadf4ed24a85b1ac2f15f33c\",\"dweb:/ipfs/QmS6tW81u8E4tvzVfVuqEuMCkdwAozQ6pKJPRBR4JEVmQp\"]},\"@openzeppelin/contracts/math/SafeMath.sol\":{\"keccak256\":\"0x640b6dee7a4b830bdfd52b5031a07fc2b12209f5b2e29e5d364a7d37f69d8076\",\"urls\":[\"bzz-raw://31113152e1ddb78fe7a4197f247591ca894e93f916867beb708d8e747b6cc74f\",\"dweb:/ipfs/QmbZaJyXdpsYGykVhHH9qpVGQg9DGCxE2QufbCUy3daTgq\"]},\"@openzeppelin/contracts/utils/Address.sol\":{\"keccak256\":\"0x1a8e5072509c5ea7365eb1d48030b9be865140c8fb779968da0a459a0e174a11\",\"urls\":[\"bzz-raw://03335b7b07c7c8c8d613cfdd8ec39a0b5ec133ee510bf2fe6cc5a496767bef4b\",\"dweb:/ipfs/Qmebp4nzPja645c9yXSdJkGq96oU3am3LUnG2K3R7XxyKf\"]}},\"version\":1}", "bytecode": "0x60636023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea365627a7a72315820eb9d76a0421864c0bb6fdc2565ec0cab7bbc44e8d2575f97d52f74510b95b2d76c6578706572696d656e74616cf564736f6c63430005100040", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea365627a7a72315820eb9d76a0421864c0bb6fdc2565ec0cab7bbc44e8d2575f97d52f74510b95b2d76c6578706572696d656e74616cf564736f6c63430005100040", "sourceMap": "1087:3596:100:-;;132:2:-1;166:7;155:9;146:7;137:37;255:7;249:14;246:1;241:23;235:4;232:33;222:2;;269:9;222:2;293:9;290:1;283:20;323:4;314:7;306:22;347:7;338;331:24", "deployedSourceMap": "1087:3596:100:-;;;;;;;;", "source": "/*\n\n Copyright 2022 Dolomite.\n\n Licensed under the Apache License, Version 2.0 (the \"License\");\n you may not use this file except in compliance with the License.\n You may obtain a copy of the License at\n\n http://www.apache.org/licenses/LICENSE-2.0\n\n Unless required by applicable law or agreed to in writing, software\n distributed under the License is distributed on an \"AS IS\" BASIS,\n WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n See the License for the specific language governing permissions and\n limitations under the License.\n\n*/\n\npragma solidity ^0.5.7;\npragma experimental ABIEncoderV2;\n\nimport { Math } from \"@openzeppelin/contracts/math/Math.sol\";\nimport { Address } from \"@openzeppelin/contracts/utils/Address.sol\";\n\nimport { IExternalCallback } from \"../interfaces/IExternalCallback.sol\";\nimport { Account } from \"../lib/Account.sol\";\nimport { ExcessivelySafeCall } from \"../lib/ExcessivelySafeCall.sol\";\nimport { DolomiteMarginMath } from \"../lib/DolomiteMarginMath.sol\";\nimport { Types } from \"../lib/Types.sol\";\n\n\nlibrary SafeExternalCallback {\n using Address for address;\n using ExcessivelySafeCall for address;\n\n // ============ Events ============\n\n event LogExternalCallbackSuccess(address indexed primaryAccountOwner, uint primaryAccountNumber);\n\n event LogExternalCallbackFailure(address indexed primaryAccountOwner, uint primaryAccountNumber, string reason);\n\n // ============ Functions ============\n\n function callInternalBalanceChangeIfNecessary(\n Account.Info memory _primaryAccount,\n Account.Info memory _secondaryAccount,\n uint256 _primaryMarket,\n Types.Wei memory _primaryDeltaWei,\n uint256 _secondaryMarket,\n Types.Wei memory _secondaryDeltaWei,\n uint256 _gasLimit\n ) internal {\n if (_gasLimit != 0 && _primaryAccount.owner.isContract()) {\n uint16 maxCopyBytes = 256;\n (bool isCallSuccessful, bytes memory result) = _primaryAccount.owner.excessivelySafeCall(\n /* _gas = */ Math.min(gasleft(), _gasLimit), // send, at most, `_gasLimit` to the callback\n maxCopyBytes, // receive at-most this many bytes worth of return data\n abi.encodeWithSelector(\n IExternalCallback(_primaryAccount.owner).onInternalBalanceChange.selector,\n _primaryAccount.number,\n _secondaryAccount,\n _primaryMarket,\n _primaryDeltaWei,\n _secondaryMarket,\n _secondaryDeltaWei\n )\n );\n\n if (isCallSuccessful) {\n emit LogExternalCallbackSuccess(_primaryAccount.owner, _primaryAccount.number);\n } else {\n // For reversions:\n // - the first 4 bytes is the method ID\n // - the next 32 bytes is the offset (hardcoded 0x20)\n // - the next 32 bytes is the length of the string\n // Here is an example result. The first 68 bytes (136 hexadecimal characters) are the templated\n // 08c379a0 // erroring method ID\n // 0000000000000000000000000000000000000000000000000000000000000020 // offset to where string is\n // 0000000000000000000000000000000000000000000000000000000000000001 // string length\n // 2100000000000000000000000000000000000000000000000000000000000000 // string itself - not templated\n if (result.length < 68) {\n result = bytes(\"\");\n } else {\n // parse the result bytes error message into a human-readable string\n uint length;\n // solium-disable-next-line security/no-inline-assembly\n assembly {\n result := add(result, 0x04)\n length := mload(add(result, 0x40))\n if gt(length, sub(maxCopyBytes, 0x44)) {\n // if the length from `result` is longer than the max length, subtract the 68 bytes\n // from the maxCopyBytes\n mstore(add(result, 0x40), sub(maxCopyBytes, 0x44))\n }\n }\n result = bytes(abi.decode(result, (string)));\n }\n emit LogExternalCallbackFailure(\n _primaryAccount.owner,\n _primaryAccount.number,\n string(result)\n );\n }\n }\n }\n}\n", "sourcePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/SafeExternalCallback.sol", "ast": { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/SafeExternalCallback.sol", "exportedSymbols": { "SafeExternalCallback": [ 28603 ] }, "id": 28604, "nodeType": "SourceUnit", "nodes": [ { "id": 28454, "literals": [ "solidity", "^", "0.5", ".7" ], "nodeType": "PragmaDirective", "src": "595:23:100" }, { "id": 28455, "literals": [ "experimental", "ABIEncoderV2" ], "nodeType": "PragmaDirective", "src": "619:33:100" }, { "absolutePath": "@openzeppelin/contracts/math/Math.sol", "file": "@openzeppelin/contracts/math/Math.sol", "id": 28457, "nodeType": "ImportDirective", "scope": 28604, "sourceUnit": 37179, "src": "654:61:100", "symbolAliases": [ { "foreign": 28456, "local": null } ], "unitAlias": "" }, { "absolutePath": "@openzeppelin/contracts/utils/Address.sol", "file": "@openzeppelin/contracts/utils/Address.sol", "id": 28459, "nodeType": "ImportDirective", "scope": 28604, "sourceUnit": 37848, "src": "716:68:100", "symbolAliases": [ { "foreign": 28458, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/interfaces/IExternalCallback.sol", "file": "../interfaces/IExternalCallback.sol", "id": 28461, "nodeType": "ImportDirective", "scope": 28604, "sourceUnit": 24773, "src": "786:72:100", "symbolAliases": [ { "foreign": 28460, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Account.sol", "file": "../lib/Account.sol", "id": 28463, "nodeType": "ImportDirective", "scope": 28604, "sourceUnit": 24886, "src": "859:45:100", "symbolAliases": [ { "foreign": 28462, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/ExcessivelySafeCall.sol", "file": "../lib/ExcessivelySafeCall.sol", "id": 28465, "nodeType": "ImportDirective", "scope": 28604, "sourceUnit": 27218, "src": "905:69:100", "symbolAliases": [ { "foreign": 28464, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/DolomiteMarginMath.sol", "file": "../lib/DolomiteMarginMath.sol", "id": 28467, "nodeType": "ImportDirective", "scope": 28604, "sourceUnit": 26239, "src": "975:67:100", "symbolAliases": [ { "foreign": 28466, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Types.sol", "file": "../lib/Types.sol", "id": 28469, "nodeType": "ImportDirective", "scope": 28604, "sourceUnit": 31362, "src": "1043:41:100", "symbolAliases": [ { "foreign": 28468, "local": null } ], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": null, "fullyImplemented": true, "id": 28603, "linearizedBaseContracts": [ 28603 ], "name": "SafeExternalCallback", "nodeType": "ContractDefinition", "nodes": [ { "id": 28472, "libraryName": { "contractScope": null, "id": 28470, "name": "Address", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 37847, "src": "1128:7:100", "typeDescriptions": { "typeIdentifier": "t_contract$_Address_$37847", "typeString": "library Address" } }, "nodeType": "UsingForDirective", "src": "1122:26:100", "typeName": { "id": 28471, "name": "address", "nodeType": "ElementaryTypeName", "src": "1140:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, { "id": 28475, "libraryName": { "contractScope": null, "id": 28473, "name": "ExcessivelySafeCall", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 27217, "src": "1159:19:100", "typeDescriptions": { "typeIdentifier": "t_contract$_ExcessivelySafeCall_$27217", "typeString": "library ExcessivelySafeCall" } }, "nodeType": "UsingForDirective", "src": "1153:38:100", "typeName": { "id": 28474, "name": "address", "nodeType": "ElementaryTypeName", "src": "1183:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, { "anonymous": false, "documentation": null, "id": 28481, "name": "LogExternalCallbackSuccess", "nodeType": "EventDefinition", "parameters": { "id": 28480, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 28477, "indexed": true, "name": "primaryAccountOwner", "nodeType": "VariableDeclaration", "scope": 28481, "src": "1271:35:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 28476, "name": "address", "nodeType": "ElementaryTypeName", "src": "1271:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 28479, "indexed": false, "name": "primaryAccountNumber", "nodeType": "VariableDeclaration", "scope": 28481, "src": "1308:25:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 28478, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1308:4:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1270:64:100" }, "src": "1238:97:100" }, { "anonymous": false, "documentation": null, "id": 28489, "name": "LogExternalCallbackFailure", "nodeType": "EventDefinition", "parameters": { "id": 28488, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 28483, "indexed": true, "name": "primaryAccountOwner", "nodeType": "VariableDeclaration", "scope": 28489, "src": "1374:35:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 28482, "name": "address", "nodeType": "ElementaryTypeName", "src": "1374:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 28485, "indexed": false, "name": "primaryAccountNumber", "nodeType": "VariableDeclaration", "scope": 28489, "src": "1411:25:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 28484, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1411:4:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 28487, "indexed": false, "name": "reason", "nodeType": "VariableDeclaration", "scope": 28489, "src": "1438:13:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 28486, "name": "string", "nodeType": "ElementaryTypeName", "src": "1438:6:100", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "1373:79:100" }, "src": "1341:112:100" }, { "body": { "id": 28601, "nodeType": "Block", "src": "1837:2844:100", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 28513, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 28508, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 28506, "name": "_gasLimit", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 28503, "src": "1851:9:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 28507, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1864:1:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1851:14:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "&&", "rightExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 28509, "name": "_primaryAccount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 28491, "src": "1869:15:100", "typeDescriptions": { "typeIdentifier": "t_struct$_Info_$24851_memory_ptr", "typeString": "struct Account.Info memory" } }, "id": 28510, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "owner", "nodeType": "MemberAccess", "referencedDeclaration": 24848, "src": "1869:21:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 28511, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "isContract", "nodeType": "MemberAccess", "referencedDeclaration": 37799, "src": "1869:32:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$bound_to$_t_address_$", "typeString": "function (address) view returns (bool)" } }, "id": 28512, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1869:34:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1851:52:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 28600, "nodeType": "IfStatement", "src": "1847:2828:100", "trueBody": { "id": 28599, "nodeType": "Block", "src": "1905:2770:100", "statements": [ { "assignments": [ 28515 ], "declarations": [ { "constant": false, "id": 28515, "name": "maxCopyBytes", "nodeType": "VariableDeclaration", "scope": 28599, "src": "1919:19:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 28514, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "1919:6:100", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": null, "visibility": "internal" } ], "id": 28517, "initialValue": { "argumentTypes": null, "hexValue": "323536", "id": 28516, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1941:3:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "256" }, "nodeType": "VariableDeclarationStatement", "src": "1919:25:100" }, { "assignments": [ 28519, 28521 ], "declarations": [ { "constant": false, "id": 28519, "name": "isCallSuccessful", "nodeType": "VariableDeclaration", "scope": 28599, "src": "1959:21:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 28518, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1959:4:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 28521, "name": "result", "nodeType": "VariableDeclaration", "scope": 28599, "src": "1982:19:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 28520, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1982:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "id": 28549, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 28527, "name": "gasleft", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 38100, "src": "2086:7:100", "typeDescriptions": { "typeIdentifier": "t_function_gasleft_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } 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false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "min", "nodeType": "MemberAccess", "referencedDeclaration": 37145, "src": "2077:8:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 28530, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2077:30:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 28531, "name": "maxCopyBytes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 28515, "src": "2171:12:100", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { 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false, "isPure": false, "lValueRequested": false, "memberName": "selector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2301:73:100", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 28540, "name": "_primaryAccount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 28491, "src": "2396:15:100", "typeDescriptions": { "typeIdentifier": "t_struct$_Info_$24851_memory_ptr", "typeString": "struct Account.Info memory" } }, "id": 28541, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "number", "nodeType": "MemberAccess", "referencedDeclaration": 24850, "src": "2396:22:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 28542, "name": "_secondaryAccount", "nodeType": "Identifier", "overloadedDeclarations": [], 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