{ "contractName": "CompoundAllocationStrategy", "abi": [ { "inputs": [ { "internalType": "contract CErc20Interface", "name": "cToken_", "type": "address" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "constant": true, "inputs": [], "name": "isOwner", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [], "name": "renounceOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "underlying", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "exchangeRateStored", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [], "name": "accrueInterest", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "internalType": "uint256", "name": "investAmount", "type": "uint256" } ], "name": "investUnderlying", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "internalType": "uint256", "name": "redeemAmount", "type": "uint256" } ], "name": "redeemUnderlying", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [], "name": "redeemAll", "outputs": [ { "internalType": "uint256", "name": "savingsAmount", "type": "uint256" }, { "internalType": "uint256", "name": "underlyingAmount", "type": "uint256" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.12+commit.7709ece9\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"contract CErc20Interface\",\"name\":\"cToken_\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"constant\":false,\"inputs\":[],\"name\":\"accrueInterest\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"exchangeRateStored\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"investAmount\",\"type\":\"uint256\"}],\"name\":\"investUnderlying\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"isOwner\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"redeemAll\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"savingsAmount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"underlyingAmount\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"redeemAmount\",\"type\":\"uint256\"}],\"name\":\"redeemUnderlying\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"underlying\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{\"accrueInterest()\":{\"details\":\"ISavingStrategy.accrueInterest implementation\"},\"exchangeRateStored()\":{\"details\":\"ISavingStrategy.exchangeRateStored implementation\"},\"investUnderlying(uint256)\":{\"details\":\"ISavingStrategy.investUnderlying implementation\"},\"isOwner()\":{\"details\":\"Returns true if the caller is the current owner.\"},\"owner()\":{\"details\":\"Returns the address of the current owner.\"},\"redeemAll()\":{\"details\":\"ISavingStrategy.redeemAll implementation\"},\"redeemUnderlying(uint256)\":{\"details\":\"ISavingStrategy.redeemUnderlying implementation\"},\"renounceOwnership()\":{\"details\":\"Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. * NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.\"},\"transferOwnership(address)\":{\"details\":\"Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.\"},\"underlying()\":{\"details\":\"ISavingStrategy.underlying implementation\"}}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/home/runner/work/rtoken-contracts/rtoken-contracts/packages/contracts/contracts/CompoundAllocationStrategy.sol\":\"CompoundAllocationStrategy\"},\"evmVersion\":\"petersburg\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/runner/work/rtoken-contracts/rtoken-contracts/packages/contracts/compound/contracts/CErc20Interface.sol\":{\"keccak256\":\"0x3832bb8f3c0e83622c95e8e7f71597bc8241a2f5f393b662455e2c84f33aca0f\",\"urls\":[\"bzz-raw://265795e913b977f65f12af7b17c8de1c04fe12a993e439ed8a9b3ec8f47ff0b5\",\"dweb:/ipfs/QmXtrEgxbSFGwmirLvpbYo1ZeQ3Puze78UJ8MwLxKaUPTB\"]},\"/home/runner/work/rtoken-contracts/rtoken-contracts/packages/contracts/contracts/CompoundAllocationStrategy.sol\":{\"keccak256\":\"0x3be4d54de2735548d7f23ededa851692d17bad80f2f2c59a24aa0508040b9b97\",\"urls\":[\"bzz-raw://4a734933e0f93d4cd4bb29d0b4b6a2871ebee95606ef5252108ea1543649ef75\",\"dweb:/ipfs/QmdS3ko9NwKyRRSBvLghaqFwsuhLR16MVEnnTvRkMQymZs\"]},\"/home/runner/work/rtoken-contracts/rtoken-contracts/packages/contracts/contracts/IAllocationStrategy.sol\":{\"keccak256\":\"0xe6771d9a3f2c4719d6b2c60cd8abf03686d8cdddf5d359ccf7ab58d17d9e1380\",\"urls\":[\"bzz-raw://80f212859923c044b4ef360dc19776149f2aacbb27c994f6b76b9cc8260a41f7\",\"dweb:/ipfs/QmWPsojno4n63Drh9WvBtCM89aovwDuabHppDh1LVgmgkY\"]},\"@openzeppelin/contracts/GSN/Context.sol\":{\"keccak256\":\"0x90a3995645af7562d84b9d69363ffa5ae7217714ab61e951bf7bc450f40e4061\",\"urls\":[\"bzz-raw://216ef9d6b614db4eb46970b4e84903f2534a45572dd30a79f0041f1a5830f436\",\"dweb:/ipfs/QmNPrJ4MWKUAWzKXpUqeyKRUfosaoANZAqXgvepdrCwZAG\"]},\"@openzeppelin/contracts/ownership/Ownable.sol\":{\"keccak256\":\"0xecd8ab29d9a5771c3964d0cd1788c4a5098a0081b20fb275da850a22b1c59806\",\"urls\":[\"bzz-raw://696a75bc2c55407ce8251ccc7d19ecb1b7b2be1796a160a6524312babcc7e3d4\",\"dweb:/ipfs/QmQViKEp3y99h9uhRssE29TmjBKRnFMaoz3eJZ4eggggg2\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0xe5bb0f57cff3e299f360052ba50f1ea0fff046df2be070b6943e0e3c3fdad8a9\",\"urls\":[\"bzz-raw://59fd025151435da35faa8093a5c7a17de02de9d08ad27275c5cdf05050820d91\",\"dweb:/ipfs/QmQMvwEcPhoRXzbXyrdoeRtvLoifUW9Qh7Luho7bmUPRkc\"]}},\"version\":1}", 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"source": "pragma solidity >=0.5.10 <0.6.0;\n\nimport {IAllocationStrategy} from \"./IAllocationStrategy.sol\";\nimport {Ownable} from \"@openzeppelin/contracts/ownership/Ownable.sol\";\nimport {IERC20} from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport {CErc20Interface} from \"../compound/contracts/CErc20Interface.sol\";\n\ncontract CompoundAllocationStrategy is IAllocationStrategy, Ownable {\n\n CErc20Interface private cToken;\n IERC20 private token;\n\n constructor(CErc20Interface cToken_) public {\n cToken = cToken_;\n token = IERC20(cToken.underlying());\n }\n\n /// @dev ISavingStrategy.underlying implementation\n function underlying() external view returns (address) {\n return cToken.underlying();\n }\n\n /// @dev ISavingStrategy.exchangeRateStored implementation\n function exchangeRateStored() external view returns (uint256) {\n return cToken.exchangeRateStored();\n }\n\n /// @dev ISavingStrategy.accrueInterest implementation\n function accrueInterest() external returns (bool) {\n return cToken.accrueInterest() == 0;\n }\n\n /// @dev ISavingStrategy.investUnderlying implementation\n function investUnderlying(uint256 investAmount) external onlyOwner returns (uint256) {\n token.transferFrom(msg.sender, address(this), investAmount);\n token.approve(address(cToken), investAmount);\n uint256 cTotalBefore = cToken.totalSupply();\n // TODO should we handle mint failure?\n require(cToken.mint(investAmount) == 0, \"mint failed\");\n uint256 cTotalAfter = cToken.totalSupply();\n uint256 cCreatedAmount;\n require (cTotalAfter >= cTotalBefore, \"Compound minted negative amount!?\");\n cCreatedAmount = cTotalAfter - cTotalBefore;\n return cCreatedAmount;\n }\n\n /// @dev ISavingStrategy.redeemUnderlying implementation\n function redeemUnderlying(uint256 redeemAmount) external onlyOwner returns (uint256) {\n uint256 cTotalBefore = cToken.totalSupply();\n // TODO should we handle redeem failure?\n require(cToken.redeemUnderlying(redeemAmount) == 0, \"cToken.redeemUnderlying failed\");\n uint256 cTotalAfter = cToken.totalSupply();\n uint256 cBurnedAmount;\n require(cTotalAfter <= cTotalBefore, \"Compound redeemed negative amount!?\");\n cBurnedAmount = cTotalBefore - cTotalAfter;\n token.transfer(msg.sender, redeemAmount);\n return cBurnedAmount;\n }\n\n /// @dev ISavingStrategy.redeemAll implementation\n function redeemAll() external onlyOwner\n returns (uint256 savingsAmount, uint256 underlyingAmount) {\n savingsAmount = cToken.balanceOf(address(this));\n require(cToken.redeem(savingsAmount) == 0, \"cToken.redeem failed\");\n underlyingAmount = token.balanceOf(address(this));\n token.transfer(msg.sender, underlyingAmount);\n }\n\n}\n", "sourcePath": "/home/runner/work/rtoken-contracts/rtoken-contracts/packages/contracts/contracts/CompoundAllocationStrategy.sol", "ast": { "absolutePath": "/home/runner/work/rtoken-contracts/rtoken-contracts/packages/contracts/contracts/CompoundAllocationStrategy.sol", "exportedSymbols": { "CompoundAllocationStrategy": [ 6094 ] }, "id": 6095, "nodeType": "SourceUnit", "nodes": [ { "id": 5853, "literals": [ "solidity", ">=", "0.5", ".10", "<", "0.6", ".0" ], "nodeType": "PragmaDirective", "src": "0:32:11" }, { "absolutePath": "/home/runner/work/rtoken-contracts/rtoken-contracts/packages/contracts/contracts/IAllocationStrategy.sol", "file": "./IAllocationStrategy.sol", "id": 5855, "nodeType": "ImportDirective", "scope": 6095, "sourceUnit": 6134, "src": "34:62:11", "symbolAliases": [ { "foreign": 5854, "local": null } ], "unitAlias": "" }, { "absolutePath": "@openzeppelin/contracts/ownership/Ownable.sol", "file": "@openzeppelin/contracts/ownership/Ownable.sol", "id": 5857, "nodeType": "ImportDirective", "scope": 6095, "sourceUnit": 10969, "src": "97:70:11", "symbolAliases": [ { "foreign": 5856, "local": null } ], "unitAlias": "" }, { "absolutePath": "@openzeppelin/contracts/token/ERC20/IERC20.sol", "file": "@openzeppelin/contracts/token/ERC20/IERC20.sol", "id": 5859, "nodeType": "ImportDirective", "scope": 6095, "sourceUnit": 11471, "src": "168:70:11", "symbolAliases": [ { "foreign": 5858, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/runner/work/rtoken-contracts/rtoken-contracts/packages/contracts/compound/contracts/CErc20Interface.sol", "file": "../compound/contracts/CErc20Interface.sol", "id": 5861, "nodeType": "ImportDirective", "scope": 6095, "sourceUnit": 701, "src": "239:74:11", "symbolAliases": [ { "foreign": 5860, "local": null } ], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 5862, "name": "IAllocationStrategy", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6133, "src": "354:19:11", "typeDescriptions": { "typeIdentifier": "t_contract$_IAllocationStrategy_$6133", "typeString": "contract IAllocationStrategy" } }, "id": 5863, "nodeType": "InheritanceSpecifier", "src": "354:19:11" }, { "arguments": null, "baseName": { "contractScope": null, "id": 5864, 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"0.5.12+commit.7709ece9.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.21", "updatedAt": "2020-04-22T17:31:54.528Z", "devdoc": { "methods": { "accrueInterest()": { "details": "ISavingStrategy.accrueInterest implementation" }, "exchangeRateStored()": { "details": "ISavingStrategy.exchangeRateStored implementation" }, "investUnderlying(uint256)": { "details": "ISavingStrategy.investUnderlying implementation" }, "isOwner()": { "details": "Returns true if the caller is the current owner." }, "owner()": { "details": "Returns the address of the current owner." }, "redeemAll()": { "details": "ISavingStrategy.redeemAll implementation" }, "redeemUnderlying(uint256)": { "details": "ISavingStrategy.redeemUnderlying implementation" }, "renounceOwnership()": { "details": "Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. * NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner." }, "transferOwnership(address)": { "details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner." }, "underlying()": { "details": "ISavingStrategy.underlying implementation" } } }, "userdoc": { "methods": {} } }