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// SPDX-License-Identifier: BUSL-1.1
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Foundation, 2023.
pragma solidity ^0.8.17;

import {PriceFeedType} from "@gearbox-protocol/sdk-gov/contracts/PriceFeedType.sol";
import {IPriceFeed} from "@gearbox-protocol/core-v2/contracts/interfaces/IPriceFeed.sol";

/// @title Zero price feed
/// @notice Always returns zero price as answer
contract ZeroPriceFeed is IPriceFeed {
    PriceFeedType public constant override priceFeedType = PriceFeedType.ZERO_ORACLE;
    uint256 public constant override version = 3_00;
    uint8 public constant override decimals = 8; // U:[ZPF-1]
    string public constant override description = "Zero price feed"; // U:[ZPF-1]
    bool public constant override skipPriceCheck = true; // U:[ZPF-1]

    /// @notice Returns zero price
    function latestRoundData() external pure override returns (uint80, int256, uint256, uint256, uint80) {
        return (0, 0, 0, 0, 0); // U:[ZPF-2]
    }
}

// SPDX-License-Identifier: UNLICENSED
// Gearbox. Generalized leverage protocol that allows to take leverage and then use it across other DeFi protocols and platforms in a composable way.
// (c) Gearbox Foundation, 2023
pragma solidity ^0.8.17;

enum PriceFeedType {
    CHAINLINK_ORACLE,
    YEARN_ORACLE,
    CURVE_2LP_ORACLE,
    CURVE_3LP_ORACLE,
    CURVE_4LP_ORACLE,
    ZERO_ORACLE,
    WSTETH_ORACLE,
    BOUNDED_ORACLE,
    COMPOSITE_ORACLE,
    WRAPPED_AAVE_V2_ORACLE,
    COMPOUND_V2_ORACLE,
    BALANCER_STABLE_LP_ORACLE,
    BALANCER_WEIGHTED_LP_ORACLE,
    CURVE_CRYPTO_ORACLE,
    THE_SAME_AS,
    REDSTONE_ORACLE,
    ERC4626_VAULT_ORACLE,
    NETWORK_DEPENDENT,
    CURVE_USD_ORACLE,
    PYTH_ORACLE,
    MELLOW_LRT_ORACLE,
    PENDLE_PT_TWAP_ORACLE
}

// SPDX-License-Identifier: MIT
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Foundation, 2023.
pragma solidity ^0.8.0;

import { PriceFeedType } from "@gearbox-protocol/sdk-gov/contracts/PriceFeedType.sol";

/// @title Price feed interface
interface IPriceFeed {
    function priceFeedType() external view returns (PriceFeedType);

    function version() external view returns (uint256);

    function decimals() external view returns (uint8);

    function description() external view returns (string memory);

    function skipPriceCheck() external view returns (bool);

    function latestRoundData()
        external
        view
        returns (uint80, int256 answer, uint256, uint256 updatedAt, uint80);
}

/// @title Updatable price feed interface
interface IUpdatablePriceFeed is IPriceFeed {
    function updatable() external view returns (bool);

    function updatePrice(bytes calldata data) external;
}

{
  "remappings": [
    "@1inch/=node_modules/@1inch/",
    "@arbitrum/=node_modules/@arbitrum/",
    "@chainlink/=node_modules/@chainlink/",
    "@eth-optimism/=node_modules/@eth-optimism/",
    "@gearbox-protocol/=node_modules/@gearbox-protocol/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "@redstone-finance/=node_modules/@redstone-finance/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "eth-gas-reporter/=node_modules/eth-gas-reporter/",
    "forge-std/=lib/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "viaIR": false,
  "libraries": {}
}

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