{ "id": "bb4d52cffb65208c2aecf4dbe1518db0", "_format": "hh-sol-build-info-1", "solcVersion": "0.6.10", "solcLongVersion": "0.6.10+commit.00c0fcaf", "input": { "language": "Solidity", "sources": { "contracts/protocol/integration/exchange/OneInchExchangeAdapter.sol": { "content": "/*\n Copyright 2020 Set Labs Inc.\n\n Licensed under the Apache License, Version 2.0 (the \"License\");\n you may not use this file except in compliance with the License.\n You may obtain a copy of the License at\n\n http://www.apache.org/licenses/LICENSE-2.0\n\n Unless required by applicable law or agreed to in writing, software\n distributed under the License is distributed on an \"AS IS\" BASIS,\n WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n See the License for the specific language governing permissions and\n limitations under the License.\n\n SPDX-License-Identifier: Apache License, Version 2.0\n*/\n\npragma solidity 0.6.10;\npragma experimental \"ABIEncoderV2\";\n\n/**\n * @title OneInchExchangeAdapter\n * @author Set Protocol\n *\n * Exchange adapter for 1Inch exchange that returns data for trades\n */\n\ncontract OneInchExchangeAdapter {\n\n /* ============ State Variables ============ */\n \n // Address of 1Inch approve token address\n address public oneInchApprovalAddress;\n\n // Address of 1Inch exchange address\n address public oneInchExchangeAddress;\n\n // Bytes to check 1Inch function signature\n bytes4 public oneInchFunctionSignature;\n\n /* ============ Constructor ============ */\n\n /**\n * Set state variables\n *\n * @param _oneInchApprovalAddress Address of 1inch approval contract\n * @param _oneInchExchangeAddress Address of 1inch exchange contract\n * @param _oneInchFunctionSignature Bytes of 1inch function signature\n */\n constructor(\n address _oneInchApprovalAddress,\n address _oneInchExchangeAddress,\n bytes4 _oneInchFunctionSignature\n )\n public\n {\n oneInchApprovalAddress = _oneInchApprovalAddress;\n oneInchExchangeAddress = _oneInchExchangeAddress;\n oneInchFunctionSignature = _oneInchFunctionSignature;\n }\n\n /* ============ External Getter Functions ============ */\n\n /**\n * Return 1inch calldata which is already generated from the 1inch API\n *\n * @param _sourceToken Address of source token to be sold\n * @param _destinationToken Address of destination token to buy\n * @param _sourceQuantity Amount of source token to sell\n * @param _minDestinationQuantity Min amount of destination token to buy\n * @param _data Arbitrage bytes containing trade call data\n *\n * @return address Target contract address\n * @return uint256 Call value\n * @return bytes Trade calldata\n */\n function getTradeCalldata(\n address _sourceToken,\n address _destinationToken,\n address /* _destinationAddress */,\n uint256 _sourceQuantity,\n uint256 _minDestinationQuantity,\n bytes memory _data\n )\n external\n view\n returns (address, uint256, bytes memory)\n { \n bytes4 signature;\n address fromToken;\n address toToken;\n uint256 fromTokenAmount;\n uint256 minReturnAmount;\n\n // Parse 1inch calldata and validate parameters match expected inputs\n // solium-disable-next-line security/no-inline-assembly\n assembly {\n signature := mload(add(_data, 32))\n fromToken := mload(add(_data, 36))\n toToken := mload(add(_data, 68))\n fromTokenAmount := mload(add(_data, 100))\n minReturnAmount := mload(add(_data, 132))\n }\n\n require(\n signature == oneInchFunctionSignature,\n \"Not One Inch Swap Function\"\n );\n\n require(\n fromToken == _sourceToken,\n \"Invalid send token\"\n );\n\n require(\n toToken == _destinationToken,\n \"Invalid receive token\"\n );\n\n require(\n fromTokenAmount == _sourceQuantity,\n \"Source quantity mismatch\"\n );\n\n require(\n minReturnAmount >= _minDestinationQuantity,\n \"Min destination quantity mismatch\"\n );\n\n return (oneInchExchangeAddress, 0, _data);\n }\n\n /**\n * Returns the address to approve source tokens to for trading. This is the TokenTaker address\n *\n * @return address Address of the contract to approve tokens to\n */\n function getSpender()\n external\n view\n returns (address)\n {\n return oneInchApprovalAddress;\n }\n}" } }, "settings": { "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "abi", "evm.bytecode", "evm.deployedBytecode", "evm.methodIdentifiers" ], "": [ "ast" ] } } } }, "output": { "contracts": { "contracts/protocol/integration/exchange/OneInchExchangeAdapter.sol": { "OneInchExchangeAdapter": { "abi": [ { "inputs": [ { "internalType": "address", "name": "_oneInchApprovalAddress", "type": "address" }, { "internalType": "address", "name": "_oneInchExchangeAddress", "type": "address" }, { "internalType": "bytes4", "name": "_oneInchFunctionSignature", "type": "bytes4" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "inputs": [], "name": "getSpender", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "_sourceToken", "type": "address" }, { "internalType": "address", "name": "_destinationToken", "type": "address" }, { "internalType": "address", "name": "", "type": "address" }, { "internalType": "uint256", "name": "_sourceQuantity", "type": "uint256" }, { "internalType": "uint256", "name": "_minDestinationQuantity", "type": "uint256" }, { "internalType": "bytes", "name": "_data", "type": "bytes" } ], "name": "getTradeCalldata", "outputs": [ { "internalType": "address", "name": "", "type": "address" }, { "internalType": "uint256", "name": "", "type": "uint256" }, { "internalType": "bytes", "name": "", "type": "bytes" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "oneInchApprovalAddress", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "oneInchExchangeAddress", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "oneInchFunctionSignature", "outputs": [ { "internalType": "bytes4", "name": "", "type": "bytes4" } ], "stateMutability": "view", "type": "function" } ], "evm": { "bytecode": { "linkReferences": {}, "object": 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}, "methodIdentifiers": { "getSpender()": "334fc289", "getTradeCalldata(address,address,address,uint256,uint256,bytes)": "e171fcab", "oneInchApprovalAddress()": "64a6c866", "oneInchExchangeAddress()": "c7868ace", "oneInchFunctionSignature()": "69fd2631" } } } } }, "sources": { "contracts/protocol/integration/exchange/OneInchExchangeAdapter.sol": { "ast": { "absolutePath": "contracts/protocol/integration/exchange/OneInchExchangeAdapter.sol", "exportedSymbols": { "OneInchExchangeAdapter": [ 121 ] }, "id": 122, "license": "Apache License", "nodeType": "SourceUnit", "nodes": [ { "id": 1, "literals": [ "solidity", "0.6", ".10" ], "nodeType": "PragmaDirective", "src": "655:23:0" }, { "id": 2, "literals": [ "experimental", "ABIEncoderV2" ], "nodeType": "PragmaDirective", "src": "679:35:0" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": { "id": 3, "nodeType": "StructuredDocumentation", "src": "716:135:0", "text": " @title 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