@sonicswap/periphery

{ "contractName": "TransferHelper", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.6.12+commit.27d51765\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"@sonicswap/lib/contracts/libraries/TransferHelper.sol\":\"TransferHelper\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@sonicswap/lib/contracts/libraries/TransferHelper.sol\":{\"keccak256\":\"0x8cb60b71be09222b2e240c2e5975788f8a51fa41e6a360c8041a02905a8af0ba\",\"license\":\"GPL-3.0-or-later\",\"urls\":[\"bzz-raw://671ff2dbbb15d7a9c3a1c248ded68a7a4e3d713a2d3c357259fe1a4a1275988a\",\"dweb:/ipfs/QmUTrzyGpApw16uBZVuYjCdsZjdsy1Ath88qYzArkGKE7z\"]}},\"version\":1}", "bytecode": "0x60566023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea264697066735822122001e1abe17079ff7a2cf80e3fc4a2a41cbe4be2aaf8ea983238f64fc0abd4855064736f6c634300060c0033", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea264697066735822122001e1abe17079ff7a2cf80e3fc4a2a41cbe4be2aaf8ea983238f64fc0abd4855064736f6c634300060c0033", "immutableReferences": {}, "sourceMap": "183:1621:30:-:0;;;;;;;;;;;;;;;;;;;;;;;;;", "deployedSourceMap": "183:1621:30:-:0;;;;;;;;", "source": "// SPDX-License-Identifier: GPL-3.0-or-later\n\npragma solidity =0.6.12;\n\n// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false\nlibrary TransferHelper {\n function safeApprove(\n address token,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('approve(address,uint256)')));\n (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));\n require(\n success && (data.length == 0 || abi.decode(data, (bool))),\n 'TransferHelper::safeApprove: approve failed'\n );\n }\n\n function safeTransfer(\n address token,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('transfer(address,uint256)')));\n (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));\n require(\n success && (data.length == 0 || abi.decode(data, (bool))),\n 'TransferHelper::safeTransfer: transfer failed'\n );\n }\n\n function safeTransferFrom(\n address token,\n address from,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));\n (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));\n require(\n success && (data.length == 0 || abi.decode(data, (bool))),\n 'TransferHelper::transferFrom: transferFrom failed'\n );\n }\n\n function safeTransferETH(address to, uint256 value) internal {\n (bool success, ) = to.call{value: value}(new bytes(0));\n require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');\n }\n}\n", "sourcePath": "@sonicswap/lib/contracts/libraries/TransferHelper.sol", "ast": { "absolutePath": "@sonicswap/lib/contracts/libraries/TransferHelper.sol", "exportedSymbols": { "TransferHelper": [ 9844 ] }, "id": 9845, "license": "GPL-3.0-or-later", "nodeType": "SourceUnit", "nodes": [ { "id": 9686, "literals": [ "solidity", "=", "0.6", ".12" ], "nodeType": "PragmaDirective", "src": "46:24:30" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": null, "fullyImplemented": true, "id": 9844, "linearizedBaseContracts": [ 9844 ], "name": "TransferHelper", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 9728, "nodeType": "Block", "src": "314:332:30", "statements": [ { "assignments": [ 9696, 9698 ], "declarations": [ { 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"value": null, "visibility": "internal" } ], "id": 9708, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30783039356561376233", "id": 9703, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "459:10:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_157198259_by_1", "typeString": "int_const 157198259" }, "value": "0x095ea7b3" }, { "argumentTypes": null, "id": 9704, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9690, "src": "471:2:30", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9705, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9692, "src": "475:5:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_157198259_by_1", "typeString": "int_const 157198259" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 9701, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -1, "src": "436:3:30", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 9702, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodeWithSelector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "436:22:30", "typeDescriptions": { "typeIdentifier": "t_function_abiencodewithselector_pure$_t_bytes4_$returns$_t_bytes_memory_ptr_$", "typeString": "function (bytes4) pure returns (bytes memory)" } }, "id": 9706, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "436:45:30", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "expression": { "argumentTypes": null, "id": 9699, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9688, "src": "425:5:30", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 9700, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "call", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "425:10:30", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 9707, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "425:57:30", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "tuple(bool,bytes memory)" } }, "nodeType": "VariableDeclarationStatement", "src": "389:93:30" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 9724, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 9710, "name": "success", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9696, "src": "513:7:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "&&", "rightExpression": { "argumentTypes": null, "components": [ { 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"nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 9713, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "540:1:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "525:16:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9717, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9698, "src": "556:4:30", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 9719, "isConstant": false, "isLValue": false, "isPure": true, 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"t_magic_abi", "typeString": "abi" } }, "id": 9716, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "decode", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "545:10:30", "typeDescriptions": { "typeIdentifier": "t_function_abidecode_pure$__$returns$__$", "typeString": "function () pure" } }, "id": 9721, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "545:24:30", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "525:44:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 9723, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "524:46:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "513:57:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "5472616e7366657248656c7065723a3a73616665417070726f76653a20617070726f7665206661696c6564", "id": 9725, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "584:45:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_b4dd1eb4be82119fd3a99acfb5dd4c57591eb0ea309359b1af3d65a4460c7123", "typeString": "literal_string \"TransferHelper::safeApprove: approve failed\"" }, "value": "TransferHelper::safeApprove: approve failed" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_b4dd1eb4be82119fd3a99acfb5dd4c57591eb0ea309359b1af3d65a4460c7123", "typeString": "literal_string \"TransferHelper::safeApprove: approve failed\"" } ], "id": 9709, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "492:7:30", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 9726, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "492:147:30", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9727, "nodeType": "ExpressionStatement", "src": "492:147:30" } ] }, "documentation": null, "id": 9729, "implemented": true, "kind": "function", "modifiers": [], "name": "safeApprove", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 9693, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9688, "mutability": "mutable", "name": "token", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9729, "src": "242:13:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9687, "name": "address", "nodeType": "ElementaryTypeName", "src": "242:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9690, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9729, "src": "265:10:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9689, "name": "address", "nodeType": "ElementaryTypeName", "src": "265:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9692, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9729, "src": "285:13:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9691, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "285:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "232:72:30" }, "returnParameters": { "id": 9694, "nodeType": "ParameterList", "parameters": [], "src": "314:0:30" }, "scope": 9844, "src": "212:434:30", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 9771, "nodeType": "Block", "src": "755:335:30", "statements": [ { "assignments": [ 9739, 9741 ], "declarations": [ { "constant": false, "id": 9739, "mutability": "mutable", "name": "success", "nodeType": "VariableDeclaration", "overrides": null, 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null, "arguments": [ { "argumentTypes": null, "hexValue": "30786139303539636262", "id": 9746, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "901:10:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2835717307_by_1", "typeString": "int_const 2835717307" }, "value": "0xa9059cbb" }, { "argumentTypes": null, "id": 9747, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9733, "src": "913:2:30", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9748, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9735, "src": "917:5:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_2835717307_by_1", "typeString": "int_const 2835717307" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 9744, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -1, "src": "878:3:30", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 9745, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodeWithSelector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "878:22:30", "typeDescriptions": { "typeIdentifier": "t_function_abiencodewithselector_pure$_t_bytes4_$returns$_t_bytes_memory_ptr_$", "typeString": "function (bytes4) pure returns (bytes memory)" } }, "id": 9749, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "878:45:30", "tryCall": false, 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