Donau Testnet

Contract

0x0f24878b05e9fF7D33a2496Ae0a31dab7E4becd2

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Set Token Config149037272022-11-23 19:20:29551 days ago1669231229IN
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0 BTT21.8763300,000
Set Token Config149037242022-11-23 19:20:23551 days ago1669231223IN
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Set Token Config149037222022-11-23 19:20:19551 days ago1669231219IN
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Set Token Config149037192022-11-23 19:20:13551 days ago1669231213IN
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0 BTT21.8763300,000
Set Token Config149037162022-11-23 19:20:07551 days ago1669231207IN
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0 BTT21.8763300,000
Set Token Config149037142022-11-23 19:20:03551 days ago1669231203IN
0x0f24878b...b7E4becd2
0 BTT21.8763300,000
Set Band Price O...149037112022-11-23 19:19:57551 days ago1669231197IN
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0 BTT14.1114300,000
Set Secondary Pr...149037092022-11-23 19:19:53551 days ago1669231193IN
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0 BTT14.019300,000
Set Is Amm Enabl...149035032022-11-23 19:12:49551 days ago1669230769IN
0x0f24878b...b7E4becd2
0 BTT8.2023300,000
Set Max Strict P...149035002022-11-23 19:12:43551 days ago1669230763IN
0x0f24878b...b7E4becd2
0 BTT13.749300,000
0x60806040149034972022-11-23 19:12:37551 days ago1669230757IN
 Contract Creation
0 BTT549.9135300,000

Latest 25 internal transactions (View All)

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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xa9D3102B...D4ef7d05b
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
VaultPriceFeed

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 1 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 7 : VaultPriceFeed.sol
// SPDX-License-Identifier: MIT

import "../libraries/math/SafeMath.sol";

import "./interfaces/IVaultPriceFeed.sol";
import "../oracle/interfaces/IPriceFeed.sol";
import "../oracle/interfaces/ISecondaryPriceFeed.sol";
// import "../oracle/interfaces/IChainlinkFlags.sol";
import "../oracle/interfaces/IStdReference.sol";
import "../amm/interfaces/IPancakePair.sol";

pragma solidity 0.6.12;

pragma experimental ABIEncoderV2;

contract VaultPriceFeed is IVaultPriceFeed {
    using SafeMath for uint256;

    uint256 public constant PRICE_PRECISION = 10 ** 30;
    uint256 public constant ONE_USD = PRICE_PRECISION;
    uint256 public constant BASIS_POINTS_DIVISOR = 10000;
    uint256 public constant MAX_SPREAD_BASIS_POINTS = 50;
    uint256 public constant MAX_ADJUSTMENT_INTERVAL = 2 hours;
    uint256 public constant MAX_ADJUSTMENT_BASIS_POINTS = 20;

    // Identifier of the Sequencer offline flag on the Flags contract
    address constant private FLAG_ARBITRUM_SEQ_OFFLINE = address(bytes20(bytes32(uint256(keccak256("chainlink.flags.arbitrum-seq-offline")) - 1)));

    address public gov;
    // address public chainlinkFlags;

    bool public isAmmEnabled = true;
    bool public isSecondaryPriceEnabled = true;
    bool public useV2Pricing = false;
    bool public favorPrimaryPrice = false;
    // uint256 public priceSampleSpace = 3;
    uint256 public maxStrictPriceDeviation = 0;
    address public secondaryPriceFeed;
    uint256 public spreadThresholdBasisPoints = 30;

    address public btc;
    address public eth;
    address public bnb;
    address public bnbBusd;
    address public ethBnb;
    address public btcBnb;

    // mapping (address => address) public priceFeeds;
    address public bandPriceOracle;
    mapping (address => string) public priceFeedSymbols;
    mapping (address => uint256) public priceDecimals;
    mapping (address => uint256) public spreadBasisPoints;
    // Chainlink can return prices for stablecoins
    // that differs from 1 USD by a larger percentage than stableSwapFeeBasisPoints
    // we use strictStableTokens to cap the price to 1 USD
    // this allows us to configure stablecoins like DAI as being a stableToken
    // while not being a strictStableToken
    mapping (address => bool) public strictStableTokens;

    mapping (address => uint256) public override adjustmentBasisPoints;
    mapping (address => bool) public override isAdjustmentAdditive;
    mapping (address => uint256) public lastAdjustmentTimings;

    modifier onlyGov() {
        require(msg.sender == gov, "VaultPriceFeed: forbidden");
        _;
    }

    constructor() public {
        gov = msg.sender;
    }

    function setGov(address _gov) external onlyGov {
        gov = _gov;
    }

    // function setChainlinkFlags(address _chainlinkFlags) external onlyGov {
    //     chainlinkFlags = _chainlinkFlags;
    // }

    function setAdjustment(address _token, bool _isAdditive, uint256 _adjustmentBps) external override onlyGov {
        require(
            lastAdjustmentTimings[_token].add(MAX_ADJUSTMENT_INTERVAL) < block.timestamp,
            "VaultPriceFeed: adjustment frequency exceeded"
        );
        require(_adjustmentBps <= MAX_ADJUSTMENT_BASIS_POINTS, "invalid _adjustmentBps");
        isAdjustmentAdditive[_token] = _isAdditive;
        adjustmentBasisPoints[_token] = _adjustmentBps;
        lastAdjustmentTimings[_token] = block.timestamp;
    }

    function setUseV2Pricing(bool _useV2Pricing) external override onlyGov {
        useV2Pricing = _useV2Pricing;
    }

    function setIsAmmEnabled(bool _isEnabled) external override onlyGov {
        isAmmEnabled = _isEnabled;
    }

    function setIsSecondaryPriceEnabled(bool _isEnabled) external override onlyGov {
        isSecondaryPriceEnabled = _isEnabled;
    }

    function setSecondaryPriceFeed(address _secondaryPriceFeed) external onlyGov {
        secondaryPriceFeed = _secondaryPriceFeed;
    }

    function setTokens(address _btc, address _eth, address _bnb) external onlyGov {
        btc = _btc;
        eth = _eth;
        bnb = _bnb;
    }

    function setPairs(address _bnbBusd, address _ethBnb, address _btcBnb) external onlyGov {
        bnbBusd = _bnbBusd;
        ethBnb = _ethBnb;
        btcBnb = _btcBnb;
    }

    function setSpreadBasisPoints(address _token, uint256 _spreadBasisPoints) external override onlyGov {
        require(_spreadBasisPoints <= MAX_SPREAD_BASIS_POINTS, "VaultPriceFeed: invalid _spreadBasisPoints");
        spreadBasisPoints[_token] = _spreadBasisPoints;
    }

    function setSpreadThresholdBasisPoints(uint256 _spreadThresholdBasisPoints) external override onlyGov {
        spreadThresholdBasisPoints = _spreadThresholdBasisPoints;
    }

    function setFavorPrimaryPrice(bool _favorPrimaryPrice) external override onlyGov {
        favorPrimaryPrice = _favorPrimaryPrice;
    }

    // function setPriceSampleSpace(uint256 _priceSampleSpace) external override onlyGov {
    //     require(_priceSampleSpace > 0, "VaultPriceFeed: invalid _priceSampleSpace");
    //     priceSampleSpace = _priceSampleSpace;
    // }

    function setMaxStrictPriceDeviation(uint256 _maxStrictPriceDeviation) external override onlyGov {
        maxStrictPriceDeviation = _maxStrictPriceDeviation;
    }

    function setBandPriceOracle(address _bandPriceOracle) external onlyGov {
        bandPriceOracle = _bandPriceOracle;
    }

    function setTokenConfig(
        address _token,
        // address _priceFeed,
        string calldata _priceFeedSymbol,
        uint256 _priceDecimals,
        bool _isStrictStable
    ) external override onlyGov {
        // priceFeeds[_token] = _priceFeed;
        priceFeedSymbols[_token] = _priceFeedSymbol;
        priceDecimals[_token] = _priceDecimals;
        strictStableTokens[_token] = _isStrictStable;
    }

    function getPrice(address _token, bool _maximise, bool _includeAmmPrice, bool /* _useSwapPricing */) public override view returns (uint256) {
        uint256 price = useV2Pricing ? getPriceV2(_token, _maximise, _includeAmmPrice) : getPriceV1(_token, _maximise, _includeAmmPrice);

        uint256 adjustmentBps = adjustmentBasisPoints[_token];
        if (adjustmentBps > 0) {
            bool isAdditive = isAdjustmentAdditive[_token];
            if (isAdditive) {
                price = price.mul(BASIS_POINTS_DIVISOR.add(adjustmentBps)).div(BASIS_POINTS_DIVISOR);
            } else {
                price = price.mul(BASIS_POINTS_DIVISOR.sub(adjustmentBps)).div(BASIS_POINTS_DIVISOR);
            }
        }

        return price;
    }

    function getPriceV1(address _token, bool _maximise, bool _includeAmmPrice) public view returns (uint256) {
        uint256 price = getPrimaryPrice(_token, _maximise);

        if (_includeAmmPrice && isAmmEnabled) {
            uint256 ammPrice = getAmmPrice(_token);
            if (ammPrice > 0) {
                if (_maximise && ammPrice > price) {
                    price = ammPrice;
                }
                if (!_maximise && ammPrice < price) {
                    price = ammPrice;
                }
            }
        }

        if (isSecondaryPriceEnabled) {
            price = getSecondaryPrice(_token, price, _maximise);
        }

        if (strictStableTokens[_token]) {
            uint256 delta = price > ONE_USD ? price.sub(ONE_USD) : ONE_USD.sub(price);
            if (delta <= maxStrictPriceDeviation) {
                return ONE_USD;
            }

            // if _maximise and price is e.g. 1.02, return 1.02
            if (_maximise && price > ONE_USD) {
                return price;
            }

            // if !_maximise and price is e.g. 0.98, return 0.98
            if (!_maximise && price < ONE_USD) {
                return price;
            }

            return ONE_USD;
        }

        uint256 _spreadBasisPoints = spreadBasisPoints[_token];

        if (_maximise) {
            return price.mul(BASIS_POINTS_DIVISOR.add(_spreadBasisPoints)).div(BASIS_POINTS_DIVISOR);
        }

        return price.mul(BASIS_POINTS_DIVISOR.sub(_spreadBasisPoints)).div(BASIS_POINTS_DIVISOR);
    }

    function getPriceV2(address _token, bool _maximise, bool _includeAmmPrice) public view returns (uint256) {
        uint256 price = getPrimaryPrice(_token, _maximise);

        if (_includeAmmPrice && isAmmEnabled) {
            price = getAmmPriceV2(_token, _maximise, price);
        }

        if (isSecondaryPriceEnabled) {
            price = getSecondaryPrice(_token, price, _maximise);
        }

        if (strictStableTokens[_token]) {
            uint256 delta = price > ONE_USD ? price.sub(ONE_USD) : ONE_USD.sub(price);
            if (delta <= maxStrictPriceDeviation) {
                return ONE_USD;
            }

            // if _maximise and price is e.g. 1.02, return 1.02
            if (_maximise && price > ONE_USD) {
                return price;
            }

            // if !_maximise and price is e.g. 0.98, return 0.98
            if (!_maximise && price < ONE_USD) {
                return price;
            }

            return ONE_USD;
        }

        uint256 _spreadBasisPoints = spreadBasisPoints[_token];

        if (_maximise) {
            return price.mul(BASIS_POINTS_DIVISOR.add(_spreadBasisPoints)).div(BASIS_POINTS_DIVISOR);
        }

        return price.mul(BASIS_POINTS_DIVISOR.sub(_spreadBasisPoints)).div(BASIS_POINTS_DIVISOR);
    }

    function getAmmPriceV2(address _token, bool _maximise, uint256 _primaryPrice) public view returns (uint256) {
        uint256 ammPrice = getAmmPrice(_token);
        if (ammPrice == 0) {
            return _primaryPrice;
        }

        uint256 diff = ammPrice > _primaryPrice ? ammPrice.sub(_primaryPrice) : _primaryPrice.sub(ammPrice);
        if (diff.mul(BASIS_POINTS_DIVISOR) < _primaryPrice.mul(spreadThresholdBasisPoints)) {
            if (favorPrimaryPrice) {
                return _primaryPrice;
            }
            return ammPrice;
        }

        if (_maximise && ammPrice > _primaryPrice) {
            return ammPrice;
        }

        if (!_maximise && ammPrice < _primaryPrice) {
            return ammPrice;
        }

        return _primaryPrice;
    }

    // function getLatestPrimaryPrice(address _token) public override view returns (uint256) {
    //     address priceFeedAddress = priceFeeds[_token];
    //     require(priceFeedAddress != address(0), "VaultPriceFeed: invalid price feed");

    //     IPriceFeed priceFeed = IPriceFeed(priceFeedAddress);

    //     int256 price = priceFeed.latestAnswer();
    //     require(price > 0, "VaultPriceFeed: invalid price");

    //     return uint256(price);
    // }

    // function getPrimaryPrice(address _token, bool _maximise) public override view returns (uint256) {
    //     address priceFeedAddress = priceFeeds[_token];
    //     require(priceFeedAddress != address(0), "VaultPriceFeed: invalid price feed");

    //     if (chainlinkFlags != address(0)) {
    //         bool isRaised = IChainlinkFlags(chainlinkFlags).getFlag(FLAG_ARBITRUM_SEQ_OFFLINE);
    //         if (isRaised) {
    //                 // If flag is raised we shouldn't perform any critical operations
    //             revert("Chainlink feeds are not being updated");
    //         }
    //     }

    //     IPriceFeed priceFeed = IPriceFeed(priceFeedAddress);

    //     uint256 price = 0;
    //     uint80 roundId = priceFeed.latestRound();

    //     for (uint80 i = 0; i < priceSampleSpace; i++) {
    //         if (roundId <= i) { break; }
    //         uint256 p;

    //         if (i == 0) {
    //             int256 _p = priceFeed.latestAnswer();
    //             require(_p > 0, "VaultPriceFeed: invalid price");
    //             p = uint256(_p);
    //         } else {
    //             (, int256 _p, , ,) = priceFeed.getRoundData(roundId - i);
    //             require(_p > 0, "VaultPriceFeed: invalid price");
    //             p = uint256(_p);
    //         }

    //         if (price == 0) {
    //             price = p;
    //             continue;
    //         }

    //         if (_maximise && p > price) {
    //             price = p;
    //             continue;
    //         }

    //         if (!_maximise && p < price) {
    //             price = p;
    //         }
    //     }

    //     require(price > 0, "VaultPriceFeed: could not fetch price");
    //     // normalise price precision
    //     uint256 _priceDecimals = priceDecimals[_token];
    //     return price.mul(PRICE_PRECISION).div(10 ** _priceDecimals);
    // }

    function getLatestPrimaryPrice(address _token) public override view returns (uint256) {
        string memory priceFeedSymbol = priceFeedSymbols[_token];
        require(bytes(priceFeedSymbol).length != 0, "VaultPriceFeed: invalid price feed symbol");

        IStdReference.ReferenceData memory priceData = IStdReference(bandPriceOracle).getReferenceData(priceFeedSymbol, "USD");
        require(priceData.rate > 0, "VaultPriceFeed: invalid price");

        return uint256(priceData.rate);
    }

    function getPrimaryPrice(address _token, bool _maximise) public override view returns (uint256) {
        require(bandPriceOracle != address(0), "VaultPriceFeed: invalid band price oracle");
        string memory priceFeedSymbol = priceFeedSymbols[_token];
        require(bytes(priceFeedSymbol).length != 0, "VaultPriceFeed: invalid price feed symbol");

        IStdReference.ReferenceData memory priceData = IStdReference(bandPriceOracle).getReferenceData(priceFeedSymbol, "USD");
        
        uint256 price = priceData.rate;

        require(price > 0, "VaultPriceFeed: could not fetch price");
        // normalise price precision
        uint256 _priceDecimals = priceDecimals[_token];
        return price.mul(PRICE_PRECISION).div(10 ** _priceDecimals);
    }

    function getSecondaryPrice(address _token, uint256 _referencePrice, bool _maximise) public view returns (uint256) {
        if (secondaryPriceFeed == address(0)) { return _referencePrice; }
        return ISecondaryPriceFeed(secondaryPriceFeed).getPrice(_token, _referencePrice, _maximise);
    }

    function getAmmPrice(address _token) public override view returns (uint256) {
        if (_token == bnb) {
            // for bnbBusd, reserve0: BNB, reserve1: BUSD
            return getPairPrice(bnbBusd, true);
        }

        if (_token == eth) {
            uint256 price0 = getPairPrice(bnbBusd, true);
            // for ethBnb, reserve0: ETH, reserve1: BNB
            uint256 price1 = getPairPrice(ethBnb, true);
            // this calculation could overflow if (price0 / 10**30) * (price1 / 10**30) is more than 10**17
            return price0.mul(price1).div(PRICE_PRECISION);
        }

        if (_token == btc) {
            uint256 price0 = getPairPrice(bnbBusd, true);
            // for btcBnb, reserve0: BTC, reserve1: BNB
            uint256 price1 = getPairPrice(btcBnb, true);
            // this calculation could overflow if (price0 / 10**30) * (price1 / 10**30) is more than 10**17
            return price0.mul(price1).div(PRICE_PRECISION);
        }

        return 0;
    }

    // if divByReserve0: calculate price as reserve1 / reserve0
    // if !divByReserve1: calculate price as reserve0 / reserve1
    function getPairPrice(address _pair, bool _divByReserve0) public view returns (uint256) {
        (uint256 reserve0, uint256 reserve1, ) = IPancakePair(_pair).getReserves();
        if (_divByReserve0) {
            if (reserve0 == 0) { return 0; }
            return reserve1.mul(PRICE_PRECISION).div(reserve0);
        }
        if (reserve1 == 0) { return 0; }
        return reserve0.mul(PRICE_PRECISION).div(reserve1);
    }
}

File 2 of 7 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

File 2 of 7 : IVaultPriceFeed.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

interface IVaultPriceFeed {
    function adjustmentBasisPoints(address _token) external view returns (uint256);
    function isAdjustmentAdditive(address _token) external view returns (bool);
    function setAdjustment(address _token, bool _isAdditive, uint256 _adjustmentBps) external;
    function setUseV2Pricing(bool _useV2Pricing) external;
    function setIsAmmEnabled(bool _isEnabled) external;
    function setIsSecondaryPriceEnabled(bool _isEnabled) external;
    function setSpreadBasisPoints(address _token, uint256 _spreadBasisPoints) external;
    function setSpreadThresholdBasisPoints(uint256 _spreadThresholdBasisPoints) external;
    function setFavorPrimaryPrice(bool _favorPrimaryPrice) external;
    // function setPriceSampleSpace(uint256 _priceSampleSpace) external;
    function setMaxStrictPriceDeviation(uint256 _maxStrictPriceDeviation) external;
    function getPrice(address _token, bool _maximise, bool _includeAmmPrice, bool _useSwapPricing) external view returns (uint256);
    function getAmmPrice(address _token) external view returns (uint256);
    function getLatestPrimaryPrice(address _token) external view returns (uint256);
    function getPrimaryPrice(address _token, bool _maximise) external view returns (uint256);
    function setTokenConfig(
        address _token,
        // address _priceFeed,
        string calldata _priceFeedSymbol,
        uint256 _priceDecimals,
        bool _isStrictStable
    ) external;
}

File 2 of 7 : ISecondaryPriceFeed.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

interface ISecondaryPriceFeed {
    function getPrice(address _token, uint256 _referencePrice, bool _maximise) external view returns (uint256);
}

File 2 of 7 : IPriceFeed.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

interface IPriceFeed {
    function description() external view returns (string memory);
    function aggregator() external view returns (address);
    function latestAnswer() external view returns (int256);
    function latestRound() external view returns (uint80);
    function getRoundData(uint80 roundId) external view returns (uint80, int256, uint256, uint256, uint80);
}

File 2 of 7 : IPancakePair.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IPancakePair {
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
}

File 2 of 7 : IStdReference.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

pragma experimental ABIEncoderV2;

interface IStdReference {
    /// A structure returned whenever someone requests for standard reference data.
    struct ReferenceData {
        uint256 rate; // base/quote exchange rate, multiplied by 1e18.
        uint256 lastUpdatedBase; // UNIX epoch of the last time when base price gets updated.
        uint256 lastUpdatedQuote; // UNIX epoch of the last time when quote price gets updated.
    }

    /// Returns the price data for the given base/quote pair. Revert if not available.
    function getReferenceData(string memory _base, string memory _quote) external view returns (ReferenceData memory);

    /// Similar to getReferenceData, but with multiple base/quote pairs at once.
    function getReferenceDataBulk(string[] memory _bases, string[] memory _quotes) external view returns (ReferenceData[] memory);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 1
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract ABI

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","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isAdjustmentAdditive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isAmmEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isSecondaryPriceEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"lastAdjustmentTimings","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxStrictPriceDeviation","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"priceDecimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"priceFeedSymbols","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"secondaryPriceFeed","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"bool","name":"_isAdditive","type":"bool"},{"internalType":"uint256","name":"_adjustmentBps","type":"uint256"}],"name":"setAdjustment","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_bandPriceOracle","type":"address"}],"name":"setBandPriceOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_favorPrimaryPrice","type":"bool"}],"name":"setFavorPrimaryPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_gov","type":"address"}],"name":"setGov","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isEnabled","type":"bool"}],"name":"setIsAmmEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isEnabled","type":"bool"}],"name":"setIsSecondaryPriceEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxStrictPriceDeviation","type":"uint256"}],"name":"setMaxStrictPriceDeviation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_bnbBusd","type":"address"},{"internalType":"address","name":"_ethBnb","type":"address"},{"internalType":"address","name":"_btcBnb","type":"address"}],"name":"setPairs","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_secondaryPriceFeed","type":"address"}],"name":"setSecondaryPriceFeed","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_spreadBasisPoints","type":"uint256"}],"name":"setSpreadBasisPoints","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_spreadThresholdBasisPoints","type":"uint256"}],"name":"setSpreadThresholdBasisPoints","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"string","name":"_priceFeedSymbol","type":"string"},{"internalType":"uint256","name":"_priceDecimals","type":"uint256"},{"internalType":"bool","name":"_isStrictStable","type":"bool"}],"name":"setTokenConfig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_btc","type":"address"},{"internalType":"address","name":"_eth","type":"address"},{"internalType":"address","name":"_bnb","type":"address"}],"name":"setTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_useV2Pricing","type":"bool"}],"name":"setUseV2Pricing","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"spreadBasisPoints","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"spreadThresholdBasisPoints","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"strictStableTokens","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"useV2Pricing","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

Deployed Bytecode

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.