@dolomite-exchange/dolomite-margin

{ "contractName": "Token", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"author\":\"dYdX * This library contains basic functions for interacting with ERC20 tokens. Modified to work with tokens that don't adhere strictly to the ERC20 standard (for example tokens that don't return a boolean value on success).\",\"methods\":{},\"title\":\"Token\"},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Token.sol\":\"Token\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":10000},\"remappings\":[]},\"sources\":{\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/interfaces/IERC20Detailed.sol\":{\"keccak256\":\"0x22a62e2a8155e70300773721902f4b9118e17aa0bb5d9d1b046050a014cfb223\",\"urls\":[\"bzz-raw://03af737a33c552fbe58f6f1fbd5496854fdc28dd57be4365d56663725c083a18\",\"dweb:/ipfs/QmbgLqGAQEd6tXsZB8QaPNCAMiU6nNzP75wNbKdS65BuUF\"]},\"/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Token.sol\":{\"keccak256\":\"0x095b5f8eb3665f6e246200311efc8a654fa3e90f9a1a522e27a4d089e8ab3917\",\"urls\":[\"bzz-raw://5db812b752a03d601d424e6e21be38153477082af0acf51b5c98eefa5553ed18\",\"dweb:/ipfs/QmbE549QUXYTurpx8hSMLBJvuBpfYqyNE6FBCgHJDY8PLf\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0xe5bb0f57cff3e299f360052ba50f1ea0fff046df2be070b6943e0e3c3fdad8a9\",\"urls\":[\"bzz-raw://59fd025151435da35faa8093a5c7a17de02de9d08ad27275c5cdf05050820d91\",\"dweb:/ipfs/QmQMvwEcPhoRXzbXyrdoeRtvLoifUW9Qh7Luho7bmUPRkc\"]}},\"version\":1}", "bytecode": "0x60636023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea365627a7a72315820250ee886967c47be53344828a2fea648f88343eb2f77a0fab8a19c02834a6e376c6578706572696d656e74616cf564736f6c63430005100040", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea365627a7a72315820250ee886967c47be53344828a2fea648f88343eb2f77a0fab8a19c02834a6e376c6578706572696d656e74616cf564736f6c63430005100040", "sourceMap": "1001:1916:103:-;;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": "1001:1916:103:-;;;;;;;;", "source": "/*\n\n Copyright 2019 dYdX Trading Inc.\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 { IERC20Detailed } from \"../interfaces/IERC20Detailed.sol\";\n\n\n/**\n * @title Token\n * @author dYdX\n *\n * This library contains basic functions for interacting with ERC20 tokens. Modified to work with\n * tokens that don't adhere strictly to the ERC20 standard (for example tokens that don't return a\n * boolean value on success).\n */\nlibrary Token {\n\n // ============ Library Functions ============\n\n function transfer(\n address token,\n address to,\n uint256 amount\n )\n internal\n {\n if (amount == 0 || to == address(this)) {\n return;\n }\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(IERC20Detailed(token).transfer.selector, to, amount),\n \"Token: transfer failed\"\n );\n }\n\n function transferFrom(\n address token,\n address from,\n address to,\n uint256 amount\n )\n internal\n {\n if (amount == 0 || to == from) {\n return;\n }\n\n // solium-disable arg-overflow\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(IERC20Detailed(token).transferFrom.selector, from, to, amount),\n \"Token: transferFrom failed\"\n );\n // solium-enable arg-overflow\n }\n\n // ============ Private Functions ============\n\n function _callOptionalReturn(address token, bytes memory data, string memory error) private {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves.\n\n // A Solidity high level call has three parts:\n // 1. The target address is checked to contain contract code. Not needed since tokens are manually added\n // 2. The call itself is made, and success asserted\n // 3. The return value is decoded, which in turn checks the size of the returned data.\n\n // solium-disable-next-line security/no-low-level-calls\n (bool success, bytes memory returnData) = token.call(data);\n require(success, error);\n\n if (returnData.length != 0) {\n // Return data is optional\n require(abi.decode(returnData, (bool)), error);\n }\n }\n\n}\n", "sourcePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Token.sol", "ast": { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/lib/Token.sol", "exportedSymbols": { "Token": [ 30850 ] }, "id": 30851, "nodeType": "SourceUnit", "nodes": [ { "id": 30731, "literals": [ "solidity", "^", "0.5", ".7" ], "nodeType": "PragmaDirective", "src": "603:23:103" }, { "id": 30732, "literals": [ "experimental", "ABIEncoderV2" ], "nodeType": "PragmaDirective", "src": "627:33:103" }, { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/protocol/interfaces/IERC20Detailed.sol", "file": "../interfaces/IERC20Detailed.sol", "id": 30734, "nodeType": "ImportDirective", "scope": 30851, "sourceUnit": 24716, "src": "662:66:103", "symbolAliases": [ { "foreign": 30733, "local": null } ], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "@title Token\n@author dYdX\n * This library contains basic functions for interacting with ERC20 tokens. Modified to work with\ntokens that don't adhere strictly to the ERC20 standard (for example tokens that don't return a\nboolean value on success).", "fullyImplemented": true, "id": 30850, "linearizedBaseContracts": [ 30850 ], "name": "Token", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 30770, "nodeType": "Block", "src": "1186:273:103", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 30751, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 30745, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 30743, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30740, "src": "1200:6:103", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 30744, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1210:1:103", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1200:11:103", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 30750, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 30746, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30738, "src": "1215:2:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 30748, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 38161, "src": "1229:4:103", "typeDescriptions": { "typeIdentifier": "t_contract$_Token_$30850", "typeString": "library Token" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_Token_$30850", "typeString": "library Token" } ], "id": 30747, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "1221:7:103", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 30749, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1221:13:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "1215:19:103", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1200:34:103", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 30754, "nodeType": "IfStatement", "src": "1196:71:103", "trueBody": { "id": 30753, "nodeType": "Block", "src": "1236:31:103", "statements": [ { "expression": null, "functionReturnParameters": 30742, "id": 30752, "nodeType": "Return", "src": "1250:7:103" } ] } }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 30756, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30736, "src": "1310:5:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 30760, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30736, "src": "1367:5:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 30759, "name": "IERC20Detailed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 24715, "src": "1352:14:103", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC20Detailed_$24715_$", "typeString": "type(contract IERC20Detailed)" } }, "id": 30761, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1352:21:103", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20Detailed_$24715", "typeString": "contract IERC20Detailed" } }, "id": 30762, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "transfer", "nodeType": "MemberAccess", "referencedDeclaration": 37506, "src": "1352:30:103", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 30763, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "selector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1352:39:103", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, { "argumentTypes": null, "id": 30764, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30738, "src": "1393:2:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 30765, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30740, "src": "1397:6:103", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 30757, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 38094, "src": "1329:3:103", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 30758, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodeWithSelector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1329:22:103", "typeDescriptions": { "typeIdentifier": "t_function_abiencodewithselector_pure$_t_bytes4_$returns$_t_bytes_memory_ptr_$", "typeString": "function (bytes4) pure returns (bytes memory)" } }, "id": 30766, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1329:75:103", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "hexValue": "546f6b656e3a207472616e73666572206661696c6564", "id": 30767, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1418:24:103", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_9cdd6e38d96d44a5b15a4b19a209464c70467f5d8eaf84c22635ec6f7f740b89", "typeString": "literal_string \"Token: transfer failed\"" }, "value": "Token: transfer failed" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_stringliteral_9cdd6e38d96d44a5b15a4b19a209464c70467f5d8eaf84c22635ec6f7f740b89", "typeString": "literal_string \"Token: transfer failed\"" } ], "id": 30755, "name": "_callOptionalReturn", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30849, "src": "1277:19:103", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_bytes_memory_ptr_$_t_string_memory_ptr_$returns$__$", "typeString": "function (address,bytes memory,string memory)" } }, "id": 30768, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1277:175:103", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 30769, "nodeType": "ExpressionStatement", "src": "1277:175:103" } ] }, "documentation": null, "id": 30771, "implemented": true, "kind": "function", "modifiers": [], "name": "transfer", "nodeType": "FunctionDefinition", "parameters": { "id": 30741, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 30736, "name": "token", "nodeType": "VariableDeclaration", "scope": 30771, "src": "1101:13:103", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 30735, "name": "address", "nodeType": "ElementaryTypeName", "src": "1101:7:103", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 30738, "name": "to", "nodeType": "VariableDeclaration", "scope": 30771, "src": "1124:10:103", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 30737, "name": "address", "nodeType": "ElementaryTypeName", "src": "1124:7:103", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 30740, "name": "amount", "nodeType": "VariableDeclaration", "scope": 30771, "src": "1144:14:103", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 30739, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1144:7:103", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1091:73:103" }, "returnParameters": { "id": 30742, "nodeType": "ParameterList", "parameters": [], "src": "1186:0:103" }, "scope": 30850, "src": "1074:385:103", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 30808, "nodeType": "Block", "src": "1603:355:103", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 30788, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 30784, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 30782, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30779, "src": "1617:6:103", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 30783, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1627:1:103", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1617:11:103", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 30787, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 30785, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30777, "src": "1632:2:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 30786, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30775, "src": "1638:4:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "1632:10:103", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1617:25:103", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 30791, "nodeType": "IfStatement", "src": "1613:62:103", "trueBody": { "id": 30790, "nodeType": "Block", "src": "1644:31:103", "statements": [ { "expression": null, "functionReturnParameters": 30781, "id": 30789, "nodeType": "Return", "src": "1658:7:103" } ] } }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 30793, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30773, "src": "1757:5:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 30797, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 30773, "src": "1814:5:103", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 30796, "name": "IERC20Detailed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 24715, "src": "1799:14:103", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC20Detailed_$24715_$", "typeString": "type(contract IERC20Detailed)" } }, "id": 30798, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1799:21:103", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20Detailed_$24715", "typeString": "contract IERC20Detailed" } }, "id": 30799, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, 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