{ "contractName": "PairRStCelo", "abi": [ { "stateMutability": "payable", "type": "receive" }, { "inputs": [ { "internalType": "address", "name": "input", "type": "address" }, { "internalType": "address", "name": "output", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "bytes", "name": "data", "type": "bytes" } ], "name": "swap", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" }, { "internalType": "address", "name": "", "type": "address" }, { "internalType": "uint256", "name": "amountIn", "type": "uint256" }, { "internalType": "bytes", "name": "data", "type": "bytes" } ], "name": "getOutputAmount", "outputs": [ { "internalType": "uint256", "name": "amountOut", "type": "uint256" } ], "stateMutability": "nonpayable", "type": "function" } ], "metadata": 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"source": "// SPDX-License-Identifier: MIT\npragma solidity 0.6.8;\n\nimport \"@openzeppelin/contracts/math/SafeMath.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"../interfaces/stCelo/IRebasedStakedCelo.sol\";\nimport \"./ISwappaPairV1.sol\";\n\ncontract PairRStCelo is ISwappaPairV1 {\n\tusing SafeMath for uint;\n\n\tfunction swap(\n\t\taddress input,\n\t\taddress output,\n\t\taddress to,\n\t\tbytes calldata data\n\t) external override {\n\t\t(address rebaseAddr, uint8 inputType) = parseData(data);\n\t\tuint inputAmount = ERC20(input).balanceOf(address(this));\n\n\t\tif (inputType == 1) {\n\t\t\t// rstCelo -> stCelo\n\t\t\tuint stCeloAmount = IRebasedStakedCelo(rebaseAddr).toStakedCelo(inputAmount);\n\t\t\tIRebasedStakedCelo(rebaseAddr).withdraw(stCeloAmount);\n\t\t} else {\n\t\t\t// stCelo -> rstCelo\n\t\t\trequire(ERC20(input).approve(rebaseAddr, inputAmount));\n\t\t\tIRebasedStakedCelo(rebaseAddr).deposit(inputAmount);\n\t\t}\n\t\tuint outputAmount = ERC20(output).balanceOf(address(this));\n\t\trequire(ERC20(output).transfer(to, outputAmount), \"PairRStCelo: Transfer Failed\");\n\t}\n\n\tfunction parseData(bytes memory data) private pure returns (address rebaseAddr, uint8 inputType) {\n\t\trequire(data.length == 21, \"PairRStCelo: invalid data!\");\n\t\tinputType = uint8(data[20]);\n\t\tassembly {\n\t\t\trebaseAddr := mload(add(data, 20))\n\t\t}\n\t}\n\n\tfunction getOutputAmount(\n\t\taddress,\n\t\taddress,\n\t\tuint amountIn,\n\t\tbytes calldata data\n\t) external override returns (uint amountOut) {\n\t\t(address rebaseAddr, uint8 inputType) = parseData(data);\n\t\tif (inputType == 1) {\n\t\t\t// rstCelo -> stCelo\n\t\t\treturn IRebasedStakedCelo(rebaseAddr).toStakedCelo(amountIn);\n\t\t} else {\n\t\t\t// stCelo -> rstCelo\n\t\t\treturn IRebasedStakedCelo(rebaseAddr).toRebasedStakedCelo(amountIn);\n\t\t}\n\t}\n\n\treceive() external payable {}\n}", "sourcePath": "/home/thezviad_gmail_com/src/swappa/contracts/swappa/PairRStCelo.sol", "ast": { "absolutePath": "project:/contracts/swappa/PairRStCelo.sol", "exportedSymbols": { "PairRStCelo": [ 6588 ] }, "id": 6589, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 6408, "literals": [ "solidity", "0.6", ".8" ], "nodeType": "PragmaDirective", "src": "32:22:53" }, { "absolutePath": "@openzeppelin/contracts/math/SafeMath.sol", "file": "@openzeppelin/contracts/math/SafeMath.sol", "id": 6409, "nodeType": "ImportDirective", "scope": 6589, "sourceUnit": 219, "src": "56:51:53", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@openzeppelin/contracts/token/ERC20/ERC20.sol", "file": "@openzeppelin/contracts/token/ERC20/ERC20.sol", "id": 6410, "nodeType": "ImportDirective", "scope": 6589, "sourceUnit": 726, "src": "108:55:53", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "project:/contracts/interfaces/stCelo/IRebasedStakedCelo.sol", "file": "../interfaces/stCelo/IRebasedStakedCelo.sol", "id": 6411, "nodeType": "ImportDirective", "scope": 6589, "sourceUnit": 1766, "src": "164:53:53", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "project:/contracts/swappa/ISwappaPairV1.sol", "file": "./ISwappaPairV1.sol", "id": 6412, "nodeType": "ImportDirective", "scope": 6589, "sourceUnit": 5326, "src": "218:29:53", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 6413, "name": "ISwappaPairV1", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5325, "src": "273:13:53", "typeDescriptions": { "typeIdentifier": "t_contract$_ISwappaPairV1_$5325", "typeString": "contract ISwappaPairV1" } }, "id": 6414, "nodeType": "InheritanceSpecifier", "src": "273:13:53" } ], "contractDependencies": [ 5325 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 6588, "linearizedBaseContracts": [ 6588, 5325 ], 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