EulerSwapPeriphery

Description:

Proxy contract enabling upgradeable smart contract patterns. Delegates calls to an implementation contract.

Blockchain: Ethereum

Source Code: View Code On The Blockchain

Solidity Source Code:

{{
  "language": "Solidity",
  "sources": {
    "lib/euler-swap/src/EulerSwapPeriphery.sol": {
      "content": "// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.27;

import {SafeERC20, IERC20} from "openzeppelin-contracts/token/ERC20/utils/SafeERC20.sol";

import {IEulerSwapPeriphery} from "./interfaces/IEulerSwapPeriphery.sol";
import {IEulerSwap} from "./interfaces/IEulerSwap.sol";

contract EulerSwapPeriphery is IEulerSwapPeriphery {
    using SafeERC20 for IERC20;

    error AmountOutLessThanMin();
    error AmountInMoreThanMax();
    error UnexpectedAmountOut();
    error DeadlineExpired();

    /// @inheritdoc IEulerSwapPeriphery
    function swapExactIn(
        address eulerSwap,
        address tokenIn,
        address tokenOut,
        uint256 amountIn,
        address receiver,
        uint256 amountOutMin,
        uint256 deadline
    ) external {
        require(deadline == 0 || deadline >= block.timestamp, DeadlineExpired());

        uint256 amountOut = IEulerSwap(eulerSwap).computeQuote(tokenIn, tokenOut, amountIn, true);

        require(amountOut >= amountOutMin, AmountOutLessThanMin());
        swap(IEulerSwap(eulerSwap), tokenIn, tokenOut, amountIn, amountOut, receiver);
    }

    /// @inheritdoc IEulerSwapPeriphery
    function swapExactOut(
        address eulerSwap,
        address tokenIn,
        address tokenOut,
        uint256 amountOut,
        address receiver,
        uint256 amountInMax,
        uint256 deadline
    ) external {
        require(deadline == 0 || deadline >= block.timestamp, DeadlineExpired());

        uint256 amountIn = IEulerSwap(eulerSwap).computeQuote(tokenIn, tokenOut, amountOut, false);

        require(amountIn <= amountInMax, AmountInMoreThanMax());

        swap(IEulerSwap(eulerSwap), tokenIn, tokenOut, amountIn, amountOut, receiver);
    }

    /// @inheritdoc IEulerSwapPeriphery
    function quoteExactInput(address eulerSwap, address tokenIn, address tokenOut, uint256 amountIn)
        external
        view
        returns (uint256)
    {
        return IEulerSwap(eulerSwap).computeQuote(tokenIn, tokenOut, amountIn, true);
    }

    /// @inheritdoc IEulerSwapPeriphery
    function quoteExactOutput(address eulerSwap, address tokenIn, address tokenOut, uint256 amountOut)
        external
        view
        returns (uint256)
    {
        return IEulerSwap(eulerSwap).computeQuote(tokenIn, tokenOut, amountOut, false);
    }

    /// @inheritdoc IEulerSwapPeriphery
    function getLimits(address eulerSwap, address tokenIn, address tokenOut) external view returns (uint256, uint256) {
        return IEulerSwap(eulerSwap).getLimits(tokenIn, tokenOut);
    }

    /// @dev Internal function to execute a token swap through EulerSwap
    /// @param eulerSwap The EulerSwap contract address to execute the swap through
    /// @param tokenIn The address of the input token being swapped
    /// @param tokenOut The address of the output token being received
    /// @param amountIn The amount of input tokens to swap
    /// @param amountOut The amount of output tokens to receive
    /// @param receiver The address that should receive the swap output
    function swap(
        IEulerSwap eulerSwap,
        address tokenIn,
        address tokenOut,
        uint256 amountIn,
        uint256 amountOut,
        address receiver
    ) internal {
        uint256 balanceBefore = IERC20(tokenOut).balanceOf(receiver);

        IERC20(tokenIn).safeTransferFrom(msg.sender, address(eulerSwap), amountIn);

        bool isAsset0In = tokenIn < tokenOut;
        (isAsset0In) ? eulerSwap.swap(0, amountOut, receiver, "") : eulerSwap.swap(amountOut, 0, receiver, "");

        require(IERC20(tokenOut).balanceOf(receiver) == balanceBefore + amountOut, UnexpectedAmountOut());
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}
"
    },
    "lib/euler-swap/src/interfaces/IEulerSwapPeriphery.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

interface IEulerSwapPeriphery {
    /// @notice Swap `amountIn` of `tokenIn` for `tokenOut`, with at least `amountOutMin` received.
    /// Output tokens are sent to `receiver`. The swap will fail after `deadline` (unless `deadline` is 0).
    /// IMPORTANT: `eulerSwap` must be a trusted contract, for example created by a trusted factory.
    function swapExactIn(
        address eulerSwap,
        address tokenIn,
        address tokenOut,
        uint256 amountIn,
        address receiver,
        uint256 amountOutMin,
        uint256 deadline
    ) external;

    /// @notice Swap `amountOut` of `tokenOut` for `tokenIn`, with at most `amountInMax` paid.
    /// Output tokens are sent to `receiver`. The swap will fail after `deadline` (unless `deadline` is 0).
    /// IMPORTANT: `eulerSwap` must be a trusted contract, for example created by a trusted factory.
    function swapExactOut(
        address eulerSwap,
        address tokenIn,
        address tokenOut,
        uint256 amountOut,
        address receiver,
        uint256 amountInMax,
        uint256 deadline
    ) external;

    /// @notice How much `tokenOut` can I get for `amountIn` of `tokenIn`?
    function quoteExactInput(address eulerSwap, address tokenIn, address tokenOut, uint256 amountIn)
        external
        view
        returns (uint256);

    /// @notice How much `tokenIn` do I need to get `amountOut` of `tokenOut`?
    function quoteExactOutput(address eulerSwap, address tokenIn, address tokenOut, uint256 amountOut)
        external
        view
        returns (uint256);

    /// @notice Upper-bounds on the amounts of each token that this pool can currently support swaps for.
    /// @return limitIn Max amount of `tokenIn` that can be sold.
    /// @return limitOut Max amount of `tokenOut` that can be bought.
    function getLimits(address eulerSwap, address tokenIn, address tokenOut)
        external
        view
        returns (uint256 limitIn, uint256 limitOut);
}
"
    },
    "lib/euler-swap/src/interfaces/IEulerSwap.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

interface IEulerSwap {
    /// @dev Constant pool parameters, loaded from trailing calldata.
    struct StaticParams {
        address supplyVault0;
        address supplyVault1;
        address borrowVault0;
        address borrowVault1;
        address eulerAccount;
        address feeRecipient;
    }

    /// @dev Reconfigurable pool parameters, loaded from storage.
    struct DynamicParams {
        uint112 equilibriumReserve0;
        uint112 equilibriumReserve1;
        uint112 minReserve0;
        uint112 minReserve1;
        uint80 priceX;
        uint80 priceY;
        uint64 concentrationX;
        uint64 concentrationY;
        uint64 fee0;
        uint64 fee1;
        uint40 expiration;
        uint8 swapHookedOperations;
        address swapHook;
    }

    /// @dev Starting configuration of pool storage.
    struct InitialState {
        uint112 reserve0;
        uint112 reserve1;
    }

    /// @notice Performs initial activation setup, such as approving vaults to access the
    /// EulerSwap instance's tokens, enabling vaults as collateral, setting up Uniswap
    /// hooks, etc. This should only be invoked by the factory.
    function activate(DynamicParams calldata dynamicParams, InitialState calldata initialState) external;

    /// @notice Installs or uninstalls a manager. Managers can reconfigure the dynamic EulerSwap parameters.
    /// Only callable by the owner (eulerAccount).
    /// @param manager Address to install/uninstall
    /// @param installed Whether the manager should be installed or uninstalled
    function setManager(address manager, bool installed) external;

    /// @notice Addresses configured as managers. Managers can reconfigure the pool parameters.
    /// @param manager Address to check
    /// @return installed Whether the address is currently a manager of this pool
    function managers(address manager) external view returns (bool installed);

    /// @notice Reconfigured the pool's parameters. Only callable by the owner (eulerAccount)
    /// or a manager.
    function reconfigure(DynamicParams calldata dParams, InitialState calldata initialState) external;

    /// @notice Retrieves the pool's static parameters.
    function getStaticParams() external view returns (StaticParams memory);

    /// @notice Retrieves the pool's dynamic parameters.
    function getDynamicParams() external view returns (DynamicParams memory);

    /// @notice Retrieves the underlying assets supported by this pool.
    function getAssets() external view returns (address asset0, address asset1);

    /// @notice Retrieves the current reserves from storage, along with the pool's lock status.
    /// @return reserve0 The amount of asset0 in the pool
    /// @return reserve1 The amount of asset1 in the pool
    /// @return status The status of the pool (0 = unactivated, 1 = unlocked, 2 = locked)
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 status);

    /// @notice Whether or not this EulerSwap instance is installed as an operator of
    /// the eulerAccount in the EVC.
    function isInstalled() external view returns (bool installed);

    /// @notice Generates a quote for how much a given size swap will cost.
    /// @param tokenIn The input token that the swapper SENDS
    /// @param tokenOut The output token that the swapper GETS
    /// @param amount The quantity of input or output tokens, for exact input and exact output swaps respectively
    /// @param exactIn True if this is an exact input swap, false if exact output
    /// @return The quoted quantity of output or input tokens, for exact input and exact output swaps respectively
    function computeQuote(address tokenIn, address tokenOut, uint256 amount, bool exactIn)
        external
        view
        returns (uint256);

    /// @notice Upper-bounds on the amounts of each token that this pool can currently support swaps for.
    /// @return limitIn Max amount of `tokenIn` that can be sold.
    /// @return limitOut Max amount of `tokenOut` that can be bought.
    function getLimits(address tokenIn, address tokenOut) external view returns (uint256 limitIn, uint256 limitOut);

    /// @notice Optimistically sends the requested amounts of tokens to the `to`
    /// address, invokes `eulerSwapCall` callback on `to` (if `data` was provided),
    /// and then verifies that a sufficient amount of tokens were transferred to
    /// satisfy the swapping curve invariant.
    function swap(uint256 amount0Out, uint256 amount1Out, address to, bytes calldata data) external;
}
"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}
"
    },
    "lib/openzeppelin-contracts/contracts/interfaces/IERC1363.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC1363.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}
"
    },
    "lib/openzeppelin-contracts/contracts/utils/Address.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Address.sol)

pragma solidity ^0.8.20;

import {Errors} from "./Errors.sol";

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert Errors.InsufficientBalance(address(this).balance, amount);
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert Errors.FailedCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {Errors.FailedCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert Errors.InsufficientBalance(address(this).balance, value);
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {Errors.FailedCall}) in case
     * of an unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {Errors.FailedCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {Errors.FailedCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            assembly ("memory-safe") {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert Errors.FailedCall();
        }
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";
"
    },
    "lib/openzeppelin-contracts/contracts/interfaces/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../utils/introspection/IERC165.sol";
"
    },
    "lib/openzeppelin-contracts/contracts/utils/Errors.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Errors.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of common custom errors used in multiple contracts
 *
 * IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
 * It is recommended to avoid relying on the error API for critical functionality.
 *
 * _Available since v5.1._
 */
library Errors {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error InsufficientBalance(uint256 balance, uint256 needed);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedCall();

    /**
     * @dev The deployment failed.
     */
    error FailedDeployment();

    /**
     * @dev A necessary precompile is missing.
     */
    error MissingPrecompile(address);
}
"
    },
    "lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
"
    }
  },
  "settings": {
    "remappings": [
      "lib/euler-price-oracle:@openzeppelin/contracts/=lib/euler-price-oracle/lib/openzeppelin-contracts/contracts/",
      "lib/euler-earn:@openzeppelin/=lib/euler-earn/lib/openzeppelin-contracts/",
      "lib/euler-earn:@openzeppelin-upgradeable/=lib/euler-earn/lib/openzeppelin-contracts-upgradeable/contracts/",
      "lib/euler-earn:ethereum-vault-connector/=lib/euler-earn/lib/ethereum-vault-connector/src/",
      "lib/layerzero-devtools/packages/oft-evm/contracts:@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts/contracts/",
      "lib/layerzero-devtools/packages/oft-evm-upgradeable/contracts:@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
      "lib/layerzero-devtools/packages/oapp-evm-upgradeable/contracts:@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
      "@layerzerolabs/oft-evm/=lib/layerzero-devtools/packages/oft-evm/",
      "@layerzerolabs/oapp-evm/=lib/layerzero-devtools/packages/oapp-evm/",
      "@layerzerolabs/oapp-evm-upgradeable/=lib/layerzero-devtools/packages/oapp-evm-upgradeable/",
      "@layerzerolabs/lz-evm-protocol-v2/=lib/layerzero-v2/packages/layerzero-v2/evm/protocol/",
      "@layerzerolabs/lz-evm-messagelib-v2/=lib/layerzero-v2/packages/layerzero-v2/evm/messagelib/",
      "@layerzerolabs/lz-evm-oapp-v2/=lib/layerzero-v2/packages/layerzero-v2/evm/oapp/",
      "openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/",
      "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
      "lib/fee-flow/src:solmate/=lib/fee-flow/lib/solmate/src/",
      "lib/fee-flow/utils:solmate/=lib/fee-flow/lib/solmate/utils/",
      "lib/fee-flow/tokens:solmate/=lib/fee-flow/lib/solmate/tokens/",
      "lib/euler-swap:solmate/=lib/euler-swap/lib/v4-periphery/lib/v4-core/lib/solmate/src/",
      "ethereum-vault-connector/=lib/ethereum-vault-connector/src/",
      "evc/=lib/ethereum-vault-connector/src/",
      "evk/=lib/euler-vault-kit/src/",
      "evk-test/=lib/euler-vault-kit/test/",
      "euler-price-oracle/=lib/euler-price-oracle/src/",
      "euler-price-oracle-test/=lib/euler-price-oracle/test/",
      "fee-flow/=lib/fee-flow/src/",
      "reward-streams/=lib/reward-streams/src/",
      "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
      "euler-earn/=lib/euler-earn/src/",
      "layerzero/oft-evm/=lib/layerzero-devtools/packages/oft-evm/contracts/",
      "layerzero/oft-evm-upgradeable/=lib/layerzero-devtools/packages/oft-evm-upgradeable/contracts/",
      "solidity-bytes-utils/=lib/solidity-bytes-utils/",
      "@ensdomains/=lib/euler-swap/lib/v4-periphery/lib/v4-core/node_modules/@ensdomains/",
      "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
      "@pendle/core-v2/=lib/euler-price-oracle/lib/pendle-core-v2-public/contracts/",
      "@pyth/=lib/euler-price-oracle/lib/pyth-sdk-solidity/",
      "@redstone/evm-connector/=lib/euler-price-oracle/lib/redstone-oracles-monorepo/packages/evm-connector/contracts/",
      "@solady/=lib/euler-price-oracle/lib/solady/src/",
      "@uniswap/v3-core/=lib/euler-price-oracle/lib/v3-core/",
      "@uniswap/v3-periphery/=lib/euler-price-oracle/lib/v3-periphery/",
      "@uniswap/v4-core/=lib/euler-swap/lib/v4-periphery/lib/v4-core/",
      "ds-test/=lib/ethereum-vault-connector/lib/forge-std/lib/ds-test/src/",
      "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
      "euler-swap/=lib/euler-swap/",
      "euler-vault-kit/=lib/euler-vault-kit/",
      "forge-gas-snapshot/=lib/euler-vault-kit/lib/permit2/lib/forge-gas-snapshot/src/",
      "forge-std/=lib/forge-std/src/",
      "halmos-cheatcodes/=lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/",
      "hardhat/=lib/euler-swap/lib/v4-periphery/lib/v4-core/node_modules/hardhat/",
      "layerzero-devtools/=lib/layerzero-devtools/packages/toolbox-foundry/src/",
      "layerzero-v2/=lib/layerzero-v2/",
      "openzeppelin/=lib/ethereum-vault-connector/lib/openzeppelin-contracts/contracts/",
      "pendle-core-v2-public/=lib/euler-price-oracle/lib/pendle-core-v2-public/contracts/",
      "permit2/=lib/euler-vault-kit/lib/permit2/",
      "pyth-sdk-solidity/=lib/euler-price-oracle/lib/pyth-sdk-solidity/",
      "redstone-oracles-monorepo/=lib/euler-price-oracle/lib/",
      "solady/=lib/euler-price-oracle/lib/solady/src/",
      "solmate/=lib/fee-flow/lib/solmate/src/",
      "v3-core/=lib/euler-price-oracle/lib/v3-core/contracts/",
      "v3-periphery/=lib/euler-price-oracle/lib/v3-periphery/contracts/",
      "v4-core/=lib/euler-swap/lib/v4-periphery/lib/v4-core/src/",
      "v4-periphery/=lib/euler-swap/lib/v4-periphery/"
    ],
    "optimizer": {
      "enabled": true,
      "runs": 2500
    },
    "metadata": {
      "useLiteralContent": false,
      "bytecodeHash": "ipfs",
      "appendCBOR": true
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "evmVersion": "cancun",
    "viaIR": false
  }
}}

Tags:
ERC20, ERC165, Proxy, Swap, Upgradeable, Factory, Oracle|addr:0xd3a349ee0a21ea0a7e9513ac236ae614b5fd513e|verified:true|block:23697907|tx:0xcd06e409f36a991ec4da45bae57e7dc4708f035a60870c88b29a293405a3465b|first_check:1761924257

Submitted on: 2025-10-31 16:24:18

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