5627a1902b
--- don't change below this line --- ENG-4033 Took 52 minutes Took 3 minutes Took 5 minutes Took 36 seconds Took 2 minutes Took 30 seconds
38 lines
1.5 KiB
Solidity
38 lines
1.5 KiB
Solidity
// SPDX-License-Identifier: UNLICENSED
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pragma solidity ^0.8.28;
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import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
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pragma abicoder v2;
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interface ISwapExecutor {
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/**
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* @notice Performs a swap on a liquidity pool.
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* @dev This method can either take the amount of the input token or the amount
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* of the output token that we would like to swap. If called with the amount of
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* the input token, the amount of the output token will be returned, and vice
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* versa. Whether it is the input or output that is given, is encoded in the data
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* parameter.
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*
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* Note Part of the informal interface is that the executor supports sending the received
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* tokens to a receiver address. If the underlying smart contract does not provide this
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* functionality consider adding an additional transfer in the implementation.
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*
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* This function is marked as `payable` to accommodate delegatecalls, which can forward
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* a potential `msg.value` to it.
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*
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* @param givenAmount The amount of either the input token or output token to swap.
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* @param data Data that holds information necessary to perform the swap.
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* @return calculatedAmount The amount of either the input token or output token
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* swapped, depending on the givenAmount inputted.
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*/
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function swap(uint256 givenAmount, bytes calldata data)
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external
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returns (uint256 calculatedAmount);
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}
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interface ISwapExecutorErrors {
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error InvalidParameterLength(uint256);
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error UnknownCurveType(uint8);
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}
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