1dad4afb6b
- The old way was useful when we just had split swaps. Unfortunately, we now have split, sequential, and single swaps, which don't always require token indices or split percentages, so we need to decode differently for each case.
44 lines
1.2 KiB
Solidity
44 lines
1.2 KiB
Solidity
// SPDX-License-Identifier: BUSL-1.1
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pragma solidity ^0.8.26;
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library LibSwap {
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/**
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* @dev Returns arguments required to perform a single swap
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*/
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function decodeSingleSwap(bytes calldata swap)
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internal
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pure
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returns (address executor, bytes calldata protocolData)
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{
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executor = address(uint160(bytes20(swap[0:20])));
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protocolData = swap[20:];
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}
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/**
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* @dev Returns arguments required to perform a sequential swap
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*/
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function decodeSequentialSwap(bytes calldata swap)
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internal
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pure
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returns (address executor, bytes calldata protocolData)
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{
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executor = address(uint160(bytes20(swap[0:20])));
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protocolData = swap[20:];
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}
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/**
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* @dev Returns arguments required to perform a split swap
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*/
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function decodeSplitSwap(bytes calldata swap)
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internal
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pure
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returns (uint8 tokenInIndex, uint8 tokenOutIndex, uint24 split, address executor, bytes calldata protocolData)
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{
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tokenInIndex = uint8(swap[0]);
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tokenOutIndex = uint8(swap[1]);
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split = uint24(bytes3(swap[2:5]));
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executor = address(uint160(bytes20(swap[5:25])));
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protocolData = swap[25:];
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}
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}
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