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			87 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			87 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| pragma solidity ^0.7.0;
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| 
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| /**
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|  * @title Yearn V2.
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|  * @dev Vaults & yield.
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|  */
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| 
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| import { TokenInterface } from "../../common/interfaces.sol";
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| import { Basic } from "../../common/basic.sol";
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| import { Events } from "./events.sol";
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| import { YearnV2Interface } from "./interface.sol";
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| 
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| abstract contract YearnResolver is Events, Basic {
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|     /**
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|      * @dev Deposit funds in the vault, issuing shares to recipient.
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|      * @notice This will deposit funds to a specific Yearn Vault.
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|      * @param vault The address of the vault to deposit funds into.
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|      * @param amt The amount of tokens to deposit.
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|      * @param getId ID to retrieve amt.
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|      * @param setId ID stores the amount of shares received.
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|     */
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|     function deposit(
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|         address vault,
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|         uint256 amt,
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|         uint256 getId,
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|         uint256 setId
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|     ) external payable returns (string memory _eventName, bytes memory _eventParam) {
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|         uint _amt = getUint(getId, amt);
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| 
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|         YearnV2Interface yearn = YearnV2Interface(vault);
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| 
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|         address want = yearn.token();
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|         bool iswETH = want == wethAddr;
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|         TokenInterface tokenContract = TokenInterface(want);
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| 
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|         if (iswETH) {
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|             _amt = _amt == uint(-1) ? address(this).balance : _amt;
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|             convertEthToWeth(iswETH, tokenContract, _amt);
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|         } else {
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|             _amt = _amt == uint(-1) ? tokenContract.balanceOf(address(this)) : _amt;
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|         }
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| 
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|         approve(tokenContract, vault, _amt);
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| 
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|         uint256 _shares = yearn.deposit(_amt, address(this));
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|         setUint(setId, _shares);
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| 
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|         _eventName = "LogDeposit(address,uint256,uint256,uint256,uint256)";
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|         _eventParam = abi.encode(vault, _shares, _amt, getId, setId);
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|     }
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| 
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|     /**
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|      * @dev Withdraw shares from the vault.
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|      * @notice This will withdraw the share from a specific Yearn Vault.
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|      * @param vault The address of the vault to withdraw shares from.
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|      * @param amt The amount of shares to withdraw.
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|      * @param getId ID to retrieve amt.
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|      * @param setId ID stores the amount want token redeemed.
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|     */
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|     function withdraw(
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|         address vault,
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|         uint256 amt,
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|         uint256 getId,
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|         uint256 setId
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|     ) external payable returns (string memory _eventName, bytes memory _eventParam) {
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|         uint _amt = getUint(getId, amt);
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| 
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|         YearnV2Interface vault = YearnV2Interface(vault);
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| 
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| 
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|         _amt = _amt == uint(-1) ? vault.balanceOf(address(this)) : _amt;
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|         uint256 _wantRedeemed = vault.withdraw(_amt, address(this));
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|         setUint(setId, _wantRedeemed);
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| 
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|         TokenInterface tokenContract = TokenInterface(vault.token());
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|         bool isWEth = vault.token() == wethAddr;
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|         convertWethToEth(isWEth, tokenContract, _amt);
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| 
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|         _eventName = "LogWithdraw(address,uint256,uint256,uint256,uint256)";
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|         _eventParam = abi.encode(vault, _amt, _wantRedeemed, getId, setId);
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|     }
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| }
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| 
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| contract ConnectV2YearnV2 is YearnResolver {
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|     string public constant name = "YearnV2-v1.0";
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| }
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