Files
tycho-execution/foundry/src/executors/TokenTransfer.sol
TAMARA LIPOWSKI 30dc3f7682 chore: renamings for clarity
- Also added a check for length in the Curve executor.
2025-04-23 12:31:41 +01:00

71 lines
2.8 KiB
Solidity

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.26;
import "@interfaces/IExecutor.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@permit2/src/interfaces/IAllowanceTransfer.sol";
error TokenTransfer__AddressZero();
contract TokenTransfer {
using SafeERC20 for IERC20;
IAllowanceTransfer public immutable permit2;
enum TransferType {
// Assume funds are in the TychoRouter - transfer into the pool
TRANSFER_TO_PROTOCOL,
// Assume funds are in msg.sender's wallet - transferFrom into the pool
TRANSFER_FROM_TO_PROTOCOL,
// Assume funds are in msg.sender's wallet - permit2TransferFrom into the pool
TRANSFER_PERMIT2_TO_PROTOCOL,
// Assume funds are in msg.sender's wallet - but the pool requires it to be
// in the router contract when calling swap - transferFrom into the router
// contract
TRANSFER_FROM_TO_ROUTER,
// Assume funds are in msg.sender's wallet - but the pool requires it to be
// in the router contract when calling swap - transferFrom into the router
// contract using permit2
TRANSFER_PERMIT2_TO_ROUTER,
// Assume funds have already been transferred into the pool. Do nothing.
NONE
}
constructor(address _permit2) {
if (_permit2 == address(0)) {
revert TokenTransfer__AddressZero();
}
permit2 = IAllowanceTransfer(_permit2);
}
function _transfer(
address tokenIn,
address sender,
address receiver,
uint256 amount,
TransferType transferType
) internal {
if (transferType == TransferType.TRANSFER_TO_PROTOCOL) {
if (tokenIn == address(0)) {
payable(receiver).transfer(amount);
} else {
IERC20(tokenIn).safeTransfer(receiver, amount);
}
} else if (transferType == TransferType.TRANSFER_FROM_TO_PROTOCOL) {
// slither-disable-next-line arbitrary-send-erc20
IERC20(tokenIn).safeTransferFrom(sender, receiver, amount);
} else if (transferType == TransferType.TRANSFER_PERMIT2_TO_PROTOCOL) {
// Permit2.permit is already called from the TychoRouter
permit2.transferFrom(sender, receiver, uint160(amount), tokenIn);
} else if (transferType == TransferType.TRANSFER_FROM_TO_ROUTER) {
// slither-disable-next-line arbitrary-send-erc20
IERC20(tokenIn).safeTransferFrom(sender, address(this), amount);
} else if (transferType == TransferType.TRANSFER_PERMIT2_TO_ROUTER) {
// Permit2.permit is already called from the TychoRouter
permit2.transferFrom(
sender, address(this), uint160(amount), tokenIn
);
}
}
}