Contract

Contract Source Code (Solidity)

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Outline

• interface ISushiBarEnter
•    - function balanceOf(address account)
•    - function approve(address spender, uin ...
•    - function transferFrom(address sender, ...
•    - function enter(uint256 amount)
• interface IAaveDeposit
•    - function deposit(address asset, uint2 ...
•  contract Saave *
•    - function saave(uint256 amount)
•    - function saaveTo(address to, uint256 ...

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/**
 *Submitted for verification at Etherscan.io on 2021-03-04
*/

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

/// @dev brief interface for entering SUSHI bar (xSUSHI).
interface ISushiBarEnter { 
    function balanceOf(address account) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
    function enter(uint256 amount) external;
}

/// @dev brief interface for depositing into AAVE lending pool.
interface IAaveDeposit {
    function deposit(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external;
}

/// @dev contract that batches SUSHI staking into AAVE xSUSHI (aXSUSHI).
contract Saave {
    ISushiBarEnter constant sushiToken = ISushiBarEnter(0x6B3595068778DD592e39A122f4f5a5cF09C90fE2); // SUSHI token contract
    ISushiBarEnter constant sushiBar = ISushiBarEnter(0x8798249c2E607446EfB7Ad49eC89dD1865Ff4272); // xSUSHI staking contract for SUSHI
    IAaveDeposit constant aave = IAaveDeposit(0x7d2768dE32b0b80b7a3454c06BdAc94A69DDc7A9); // AAVE lending pool contract for xSUSHI staking into aXSUSHI
    
    constructor() public {
        sushiToken.approve(address(sushiBar), type(uint256).max); // max approve `sushiBar` spender to stake SUSHI into xSUSHI from this contract
        sushiBar.approve(address(aave), type(uint256).max); // max approve `aave` spender to stake xSUSHI into aXSUSHI from this contract
    }
    
    /// @dev stake `amount` SUSHI into aXSUSHI by batching calls to `sushiBar` and `aave` lending pool.
    function saave(uint256 amount) external {
        sushiToken.transferFrom(msg.sender, address(this), amount); // deposit caller SUSHI `amount` into this contract
        sushiBar.enter(amount); // stake deposited SUSHI `amount` into xSUSHI
        aave.deposit(address(sushiBar), sushiBar.balanceOf(address(this)), msg.sender, 0); // stake resulting xSUSHI into aXSUSHI - send to caller
    }
    
    /// @dev stake `amount` SUSHI into aXSUSHI for benefit of `to` by batching calls to `sushiBar` and `aave` lending pool.
    function saaveTo(address to, uint256 amount) external {
        sushiToken.transferFrom(msg.sender, address(this), amount); // deposit caller SUSHI `amount` into this contract
        sushiBar.enter(amount); // stake deposited SUSHI `amount` into xSUSHI
        aave.deposit(address(sushiBar), sushiBar.balanceOf(address(this)), to, 0); // stake resulting xSUSHI into aXSUSHI - send to `to`
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"saave","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"saaveTo","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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ipfs://056ce45e246a8af3b3526bec4d7aef49a9d0d7d6801e4370e065524739793f94