{
  "language": "Solidity",
  "sources": {
    "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
    },
    "@venusprotocol/solidity-utilities/contracts/constants.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity ^0.8.25;\n\n/// @dev Base unit for computations, usually used in scaling (multiplications, divisions)\nuint256 constant EXP_SCALE = 1e18;\n\n/// @dev A unit (literal one) in EXP_SCALE, usually used in additions/subtractions\nuint256 constant MANTISSA_ONE = EXP_SCALE;\n\n/// @dev The approximate number of seconds per year\nuint256 constant SECONDS_PER_YEAR = 31_536_000;\n"
    },
    "@venusprotocol/solidity-utilities/contracts/validators.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\n/// @notice Thrown if the supplied address is a zero address where it is not allowed\nerror ZeroAddressNotAllowed();\n\n/// @notice Thrown if the supplied value is 0 where it is not allowed\nerror ZeroValueNotAllowed();\n\n/// @notice Checks if the provided address is nonzero, reverts otherwise\n/// @param address_ Address to check\n/// @custom:error ZeroAddressNotAllowed is thrown if the provided address is a zero address\nfunction ensureNonzeroAddress(address address_) pure {\n    if (address_ == address(0)) {\n        revert ZeroAddressNotAllowed();\n    }\n}\n\n/// @notice Checks if the provided value is nonzero, reverts otherwise\n/// @param value_ Value to check\n/// @custom:error ZeroValueNotAllowed is thrown if the provided value is 0\nfunction ensureNonzeroValue(uint256 value_) pure {\n    if (value_ == 0) {\n        revert ZeroValueNotAllowed();\n    }\n}\n"
    },
    "contracts/interfaces/IERC4626.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\ninterface IERC4626 {\n    function convertToAssets(uint256 shares) external view returns (uint256);\n    function decimals() external view returns (uint8);\n}\n"
    },
    "contracts/interfaces/IPendlePtOracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\ninterface IPendlePtOracle {\n    function getPtToAssetRate(address market, uint32 duration) external view returns (uint256);\n\n    function getPtToSyRate(address market, uint32 duration) external view returns (uint256);\n\n    function getOracleState(\n        address market,\n        uint32 duration\n    )\n        external\n        view\n        returns (bool increaseCardinalityRequired, uint16 cardinalityRequired, bool oldestObservationSatisfied);\n}\n"
    },
    "contracts/interfaces/OracleInterface.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity ^0.8.25;\n\ninterface OracleInterface {\n    function getPrice(address asset) external view returns (uint256);\n}\n\ninterface ResilientOracleInterface is OracleInterface {\n    function updatePrice(address vToken) external;\n\n    function updateAssetPrice(address asset) external;\n\n    function getUnderlyingPrice(address vToken) external view returns (uint256);\n}\n\ninterface TwapInterface is OracleInterface {\n    function updateTwap(address asset) external returns (uint256);\n}\n\ninterface BoundValidatorInterface {\n    function validatePriceWithAnchorPrice(\n        address asset,\n        uint256 reporterPrice,\n        uint256 anchorPrice\n    ) external view returns (bool);\n}\n"
    },
    "contracts/oracles/common/CorrelatedTokenOracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\nimport { OracleInterface } from \"../../interfaces/OracleInterface.sol\";\nimport { ensureNonzeroAddress } from \"@venusprotocol/solidity-utilities/contracts/validators.sol\";\nimport { IERC20Metadata } from \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\n\n/**\n * @title CorrelatedTokenOracle\n * @notice This oracle fetches the price of a token that is correlated to another token.\n */\nabstract contract CorrelatedTokenOracle is OracleInterface {\n    /// @notice Address of the correlated token\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    address public immutable CORRELATED_TOKEN;\n\n    /// @notice Address of the underlying token\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    address public immutable UNDERLYING_TOKEN;\n\n    /// @notice Address of Resilient Oracle\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    OracleInterface public immutable RESILIENT_ORACLE;\n\n    /// @notice Thrown if the token address is invalid\n    error InvalidTokenAddress();\n\n    /// @notice Constructor for the implementation contract.\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor(address correlatedToken, address underlyingToken, address resilientOracle) {\n        ensureNonzeroAddress(correlatedToken);\n        ensureNonzeroAddress(underlyingToken);\n        ensureNonzeroAddress(resilientOracle);\n        CORRELATED_TOKEN = correlatedToken;\n        UNDERLYING_TOKEN = underlyingToken;\n        RESILIENT_ORACLE = OracleInterface(resilientOracle);\n    }\n\n    /**\n     * @notice Fetches the price of the correlated token\n     * @param asset Address of the correlated token\n     * @return price The price of the correlated token in scaled decimal places\n     */\n    function getPrice(address asset) external view override returns (uint256) {\n        if (asset != CORRELATED_TOKEN) revert InvalidTokenAddress();\n\n        // get underlying token amount for 1 correlated token scaled by underlying token decimals\n        uint256 underlyingAmount = _getUnderlyingAmount();\n\n        // oracle returns (36 - asset decimal) scaled price\n        uint256 underlyingUSDPrice = RESILIENT_ORACLE.getPrice(UNDERLYING_TOKEN);\n\n        IERC20Metadata token = IERC20Metadata(CORRELATED_TOKEN);\n        uint256 decimals = token.decimals();\n\n        // underlyingAmount (for 1 correlated token) * underlyingUSDPrice / decimals(correlated token)\n        return (underlyingAmount * underlyingUSDPrice) / (10 ** decimals);\n    }\n\n    /**\n     * @notice Gets the underlying amount for correlated token\n     * @return underlyingAmount Amount of underlying token\n     */\n    function _getUnderlyingAmount() internal view virtual returns (uint256);\n}\n"
    },
    "contracts/oracles/ERC4626Oracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\nimport { IERC4626 } from \"../interfaces/IERC4626.sol\";\nimport { CorrelatedTokenOracle } from \"./common/CorrelatedTokenOracle.sol\";\nimport { EXP_SCALE } from \"@venusprotocol/solidity-utilities/contracts/constants.sol\";\n\n/**\n * @title ERC4626Oracle\n * @author Venus\n * @notice This oracle fetches the price of ERC4626 tokens\n */\ncontract ERC4626Oracle is CorrelatedTokenOracle {\n    /// @notice Constructor for the implementation contract.\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor(\n        address correlatedToken,\n        address underlyingToken,\n        address resilientOracle\n    ) CorrelatedTokenOracle(correlatedToken, underlyingToken, resilientOracle) {}\n\n    /**\n     * @notice Fetches the amount of underlying token for 1 correlated token\n     * @return amount The amount of underlying token for correlated token\n     */\n    function _getUnderlyingAmount() internal view override returns (uint256) {\n        return IERC4626(CORRELATED_TOKEN).convertToAssets(EXP_SCALE);\n    }\n}\n"
    },
    "contracts/oracles/PendleOracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\nimport { IPendlePtOracle } from \"../interfaces/IPendlePtOracle.sol\";\nimport { CorrelatedTokenOracle } from \"./common/CorrelatedTokenOracle.sol\";\nimport { ensureNonzeroAddress, ensureNonzeroValue } from \"@venusprotocol/solidity-utilities/contracts/validators.sol\";\nimport { IERC20Metadata } from \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\n\n/**\n * @title PendleOracle\n * @author Venus\n * @notice This oracle fetches the price of a pendle token\n * @dev As a base price the oracle uses either the price of the Pendle\n * market's asset (in this case PT_TO_ASSET rate should be used) or\n * the price of the Pendle market's interest bearing token (e.g. wstETH\n * for stETH; in this case PT_TO_SY rate should be used). Technically,\n * interest bearing token is different from standardized yield (SY) token,\n * but since SY is a wrapper around an interest bearing token, we can safely\n * assume the prices of the two are equal. This is not always true for asset\n * price though: using PT_TO_ASSET rate assumes that the yield token can\n * be seamlessly redeemed for the underlying asset. In reality, this might\n * not always be the case. For more details, see\n * https://docs.pendle.finance/Developers/Contracts/StandardizedYield\n */\ncontract PendleOracle is CorrelatedTokenOracle {\n    /// @notice Which asset to use as a base for the returned PT\n    /// price. Can be either a standardized yield token (SY), in\n    /// this case PT/SY price is returned, or the Pendle\n    /// market's asset directly.\n    enum RateKind {\n        PT_TO_ASSET,\n        PT_TO_SY\n    }\n\n    /// @notice Address of the PT oracle\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    IPendlePtOracle public immutable PT_ORACLE;\n\n    /// @notice Whether to use PT/SY (standardized yield token) rate\n    /// or PT/market asset rate\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    RateKind public immutable RATE_KIND;\n\n    /// @notice Address of the market\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    address public immutable MARKET;\n\n    /// @notice Twap duration for the oracle\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    uint32 public immutable TWAP_DURATION;\n\n    /// @notice Decimals of the underlying token\n    /// @dev We make an assumption that the underlying decimals will\n    /// not change throughout the lifetime of the Pendle market\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    uint8 public immutable UNDERLYING_DECIMALS;\n\n    /// @notice Thrown if the duration is invalid\n    error InvalidDuration();\n\n    /// @notice Constructor for the implementation contract.\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    /// @param market Pendle market\n    /// @param ptOracle Pendle oracle\n    /// @param rateKind Either PT_TO_ASSET or PT_TO_SY\n    /// @param ptToken Pendle PT token\n    /// @param underlyingToken Underlying token, can be either the market's asset or the interest bearing token\n    /// @param resilientOracle Venus Oracle to get the underlying token price from\n    /// @param twapDuration TWAP duration to call Pendle oracle with\n    constructor(\n        address market,\n        address ptOracle,\n        RateKind rateKind,\n        address ptToken,\n        address underlyingToken,\n        address resilientOracle,\n        uint32 twapDuration\n    ) CorrelatedTokenOracle(ptToken, underlyingToken, resilientOracle) {\n        ensureNonzeroAddress(market);\n        ensureNonzeroAddress(ptOracle);\n        ensureNonzeroValue(twapDuration);\n\n        MARKET = market;\n        PT_ORACLE = IPendlePtOracle(ptOracle);\n        RATE_KIND = rateKind;\n        TWAP_DURATION = twapDuration;\n        UNDERLYING_DECIMALS = IERC20Metadata(UNDERLYING_TOKEN).decimals();\n\n        (bool increaseCardinalityRequired, , bool oldestObservationSatisfied) = PT_ORACLE.getOracleState(\n            MARKET,\n            TWAP_DURATION\n        );\n        if (increaseCardinalityRequired || !oldestObservationSatisfied) {\n            revert InvalidDuration();\n        }\n    }\n\n    /// @notice Fetches the amount of underlying token for 1 PT\n    /// @return amount The amount of underlying token (either the market's asset\n    /// or the yield token) for 1 PT, adjusted for decimals such that the result\n    /// has the same precision as the underlying token\n    function _getUnderlyingAmount() internal view override returns (uint256) {\n        uint256 rate;\n        if (RATE_KIND == RateKind.PT_TO_SY) {\n            rate = PT_ORACLE.getPtToSyRate(MARKET, TWAP_DURATION);\n        } else {\n            rate = PT_ORACLE.getPtToAssetRate(MARKET, TWAP_DURATION);\n        }\n        return ((10 ** UNDERLYING_DECIMALS) * rate) / 1e18;\n    }\n}\n"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200,
      "details": {
        "yul": true
      }
    },
    "evmVersion": "paris",
    "outputSelection": {
      "*": {
        "*": [
          "storageLayout",
          "abi",
          "evm.bytecode",
          "evm.deployedBytecode",
          "evm.methodIdentifiers",
          "metadata",
          "devdoc",
          "userdoc",
          "evm.gasEstimates"
        ],
        "": ["ast"]
      }
    },
    "metadata": {
      "useLiteralContent": true
    }
  }
}