76aa419320
- CCIP/trustless bridge contracts, GRU tokens, DEX/PMM tests, reserve vault. - Token-aggregation service routes, planner, chain config, relay env templates. - Config snapshots and multi-chain deployment markdown updates. - gitignore services/btc-intake/dist/ (tsc output); do not track dist. Run forge build && forge test before deploy (large solc graph). Made-with: Cursor
34 lines
1.1 KiB
Solidity
34 lines
1.1 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.20;
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import {IERC3156FlashBorrower} from "@openzeppelin/contracts/interfaces/IERC3156FlashBorrower.sol";
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import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
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/**
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* @title MinimalERC3156FlashBorrower
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* @notice Repays vault via ERC-20 transfer in `onFlashLoan`. Pre-fund this contract with at least `flashFee` of the loan token before calling `flashLoan` (vault sends `amount` only before the callback).
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*/
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contract MinimalERC3156FlashBorrower is IERC3156FlashBorrower {
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bytes32 private constant _RETURN_VALUE = keccak256("ERC3156FlashBorrower.onFlashLoan");
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address public immutable trustedLender;
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error UntrustedLender();
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constructor(address trustedLender_) {
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trustedLender = trustedLender_;
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}
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function onFlashLoan(
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address,
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address token,
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uint256 amount,
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uint256 fee,
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bytes calldata
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) external override returns (bytes32) {
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if (msg.sender != trustedLender) revert UntrustedLender();
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IERC20(token).transfer(msg.sender, amount + fee);
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return _RETURN_VALUE;
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}
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}
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