Contract

0x444443bae5bB8640677A8cdF94CB8879Fec948Ec

Source Code

Overview

ETH Balance

0 ETH

Eth Value

$0.00

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ContractCreator

0x0B634A8D...4D0Aad26b at txn 0x3255ff23c99123550ef9a43ee6aa18b7deceed41d75251159be3c4553e66130c

Multichain Info

$0 (Multichain Portfolio)

	Transaction Hash	Method	Block		From		To
There are no matching entries 1 Internal Transaction found.

Latest 1 internal transaction

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Parent Transaction Hash	Block		From		To
0x3255ff23c99123550ef9a43ee6aa18b7deceed41d75251159be3c4553e66130c	16557254	2023-02-04 18:37:59	706 days ago	1675535879	0x488E1A80...29d56B084		Contract Creation	0 ETH$0.00

Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x0259e629...50F7671fa
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:

ShareValueHelper

Compiler Version

v0.8.6+commit.11564f7e

Optimization Enabled:

Yes with 200 runs

Other Settings:

default evmVersion, None license

Contract Source Code (Solidity Standard Json-Input format)

IDE

File 1 of 1 : Helper.sol

pragma solidity 0.8.6;

interface IVault {
    function totalSupply() external view returns (uint);
    function lockedProfitDegradation() external view returns (uint);
    function lastReport() external view returns (uint);
    function totalAssets() external view returns (uint);
    function lockedProfit() external view returns (uint);
}

/// @title Share Value Helper
/// @dev This works on all Yearn vaults 0.4.0+
/// @dev Achieves a higher precision conversion than pricePerShare; particularly for tokens with < 18 decimals.
contract ShareValueHelper {

    /// @notice Helper function to convert shares to underlying amount with exact precision
    function sharesToAmount(address vault, uint shares) external view returns (uint) {
        uint totalSupply = IVault(vault).totalSupply();
        if (totalSupply == 0) return shares;

        uint freeFunds = calculateFreeFunds(vault);
        return (
            shares
            * freeFunds
            / totalSupply
        );
    }

    /// @notice Helper function to convert underlying amount to shares with exact precision
    function amountToShares(address vault, uint amount) external view returns (uint) {
        uint totalSupply = IVault(vault).totalSupply();
        if (totalSupply > 0) {
            return amount * totalSupply / calculateFreeFunds(vault);
        }
        return amount;
    }
    
    function calculateFreeFunds(address vault) public view returns (uint) {
        uint totalAssets = IVault(vault).totalAssets();
        uint lockedFundsRatio = (block.timestamp - IVault(vault).lastReport()) * IVault(vault).lockedProfitDegradation();

        if (lockedFundsRatio < 10 ** 18) {
            uint lockedProfit = IVault(vault).lockedProfit();
            lockedProfit -= (
                lockedFundsRatio
                * lockedProfit
                / 10 ** 18
            );
            return totalAssets - lockedProfit;
        }
        else {
            return totalAssets;
        }
    }
}

Settings

{
  "evmVersion": "istanbul",
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "libraries": {
    "Helper.sol": {}
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

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Contract ABI

[{"inputs":[{"internalType":"address","name":"vault","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"amountToShares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"vault","type":"address"}],"name":"calculateFreeFunds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"vault","type":"address"},{"internalType":"uint256","name":"shares","type":"uint256"}],"name":"sharesToAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

Deployed Bytecode

Decompile Bytecode

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