38 lines
1.5 KiB
Solidity
38 lines
1.5 KiB
Solidity
// SPDX-License-Identifier: GPL-3.0-or-later
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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pragma solidity >=0.7.0 <0.9.0;
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// Inspired by Aave Protocol's IFlashLoanReceiver.
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import "../solidity-utils/openzeppelin/IERC20.sol";
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interface IFlashLoanRecipient {
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/**
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* @dev When `flashLoan` is called on the Vault, it invokes the `receiveFlashLoan` hook on the recipient.
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*
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* At the time of the call, the Vault will have transferred `amounts` for `tokens` to the recipient. Before this
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* call returns, the recipient must have transferred `amounts` plus `feeAmounts` for each token back to the
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* Vault, or else the entire flash loan will revert.
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*
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* `userData` is the same value passed in the `IVault.flashLoan` call.
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*/
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function receiveFlashLoan(
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IERC20[] memory tokens,
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uint256[] memory amounts,
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uint256[] memory feeAmounts,
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bytes memory userData
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) external;
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}
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