{
    "Function": "_update",
    "File": "contracts/yieldspace/Pool.sol",
    "Parent Contracts": [
        "contracts/utils/access/Ownable.sol",
        "contracts/utils/token/ERC20Permit.sol",
        "contracts/interfaces/yieldspace/IPool.sol",
        "contracts/interfaces/external/IERC2612.sol",
        "contracts/utils/token/ERC20.sol",
        "contracts/interfaces/external/IERC20Metadata.sol",
        "contracts/interfaces/external/IERC20.sol"
    ],
    "High-Level Calls": [
        "SafeCast128",
        "SafeCast128"
    ],
    "Internal Calls": [],
    "Library Calls": [
        "u112",
        "u112"
    ],
    "Low-Level Calls": [],
    "Code": "function _update(uint128 baseBalance, uint128 fyBalance, uint112 _baseCached, uint112 _fyTokenCached) private {\n        uint32 blockTimestamp = uint32(block.timestamp);\n        uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired\n        if (timeElapsed > 0 && _baseCached != 0 && _fyTokenCached != 0) {\n            // We multiply by 1e27 here so that r = t * y/x is a fixed point factor with 27 decimals \n            uint256 scaledFYTokenCached = uint256(_fyTokenCached) * 1e27;\n            cumulativeBalancesRatio += scaledFYTokenCached  * timeElapsed / _baseCached;\n        }\n        baseCached = baseBalance.u112();\n        fyTokenCached = fyBalance.u112();\n        blockTimestampLast = blockTimestamp;\n        emit Sync(baseCached, fyTokenCached, cumulativeBalancesRatio);\n    }"
}