93678d9d19
Because we don't know the size of hook data, it needs to be at the end of the protocol data. But we also don't know the size of the intermediary swaps. To solve this, we are now ple encoding the intermediary swaps and only then appending the hook data Took 2 hours 50 minutes Took 40 seconds
60 lines
1.6 KiB
Solidity
60 lines
1.6 KiB
Solidity
// SPDX-License-Identifier: BUSL-1.1
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pragma solidity ^0.8.26;
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import "@src/executors/UniswapV4Executor.sol";
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library UniswapV4Utils {
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function encodeExactInput(
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address tokenIn,
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address tokenOut,
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bool zeroForOne,
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RestrictTransferFrom.TransferType transferType,
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address receiver,
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address hook,
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bytes memory hookData,
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UniswapV4Executor.UniswapV4Pool[] memory pools
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) public pure returns (bytes memory) {
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require(pools.length > 0, "Must have at least one pool");
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bytes memory firstPool = abi.encodePacked(
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pools[0].intermediaryToken,
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bytes3(pools[0].fee),
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pools[0].tickSpacing
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);
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bytes[] memory encodedExtraPools = new bytes[](pools.length - 1);
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for (uint256 i = 1; i < pools.length; i++) {
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encodedExtraPools[i - 1] = abi.encodePacked(
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pools[i].intermediaryToken,
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bytes3(pools[i].fee),
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pools[i].tickSpacing
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);
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}
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return abi.encodePacked(
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tokenIn,
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tokenOut,
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zeroForOne,
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transferType,
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receiver,
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hook,
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firstPool,
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pleEncode(encodedExtraPools),
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hookData
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);
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}
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function pleEncode(bytes[] memory data)
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public
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pure
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returns (bytes memory encoded)
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{
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for (uint256 i = 0; i < data.length; i++) {
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encoded = bytes.concat(
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encoded,
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abi.encodePacked(bytes2(uint16(data[i].length)), data[i])
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);
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}
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}
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}
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