@valueswap/v2-periphery

{ "contractName": "ValueswapV2Migrator", "abi": [ { "inputs": [ { "internalType": "address", "name": "_factoryV1", "type": "address" }, { "internalType": "address", "name": "_router", "type": "address" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "stateMutability": "payable", "type": "receive" }, { "inputs": [ { "internalType": "address", "name": "token", "type": "address" }, { "internalType": "uint256", "name": "amountTokenMin", "type": "uint256" }, { "internalType": "uint256", "name": "amountETHMin", "type": "uint256" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "deadline", "type": "uint256" } ], "name": "migrate", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.6.6+commit.6c089d02\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_factoryV1\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_router\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"token\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amountTokenMin\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amountETHMin\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"deadline\",\"type\":\"uint256\"}],\"name\":\"migrate\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"stateMutability\":\"payable\",\"type\":\"receive\"}],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/Users/second/Documents/work/valueswap-v2-periphery/contracts/ValueswapV2Migrator.sol\":\"ValueswapV2Migrator\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":999999},\"remappings\":[]},\"sources\":{\"/Users/second/Documents/work/valueswap-v2-periphery/contracts/ValueswapV2Migrator.sol\":{\"keccak256\":\"0x76f65b39696b6b4b8a2fabfc865f7d06ffdc9a2f2fc7719aa8dad545ea9ddac7\",\"urls\":[\"bzz-raw://a123de3cddc8b59fdb82e9b7574bcfd01a78177ebefd380b8ff04daf4dac77a2\",\"dweb:/ipfs/QmS3TkLJDZAf3EnYkqs3WTDw3MZ2huqibhTAaPrxZbBjn6\"]},\"/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/IERC20.sol\":{\"keccak256\":\"0x61db17aebc5d812c7002d15c1da954065e56abe49d64b14c034abe5604d70eb3\",\"urls\":[\"bzz-raw://b006685e753f9120469f10b09c159f222d4cb8b507a6c1f0c14ed50c883ebe66\",\"dweb:/ipfs/QmSyY7iTugbczPwfGK67etiyPULenYGzzRYbt8aabwwkUb\"]},\"/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/IValueswapV2Migrator.sol\":{\"keccak256\":\"0x892e70808b5263f38b7f68c4f0f23766a35a4cb90ab47c215e9edc4992fd7989\",\"urls\":[\"bzz-raw://cf94d37f8cdc877097a6ed46a7452ab49c944d5ef1f2665bc96e50b5c6800fe3\",\"dweb:/ipfs/QmNicJzwH45Y8JPMZ6jjZ7DPi1fSKWq2d6BvYofFSUUcTH\"]},\"/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/IValueswapV2Router01.sol\":{\"keccak256\":\"0x36353f46a62274a8eba493ea0bed9284da4f97e30025def7688d84de95552826\",\"urls\":[\"bzz-raw://e258df9bf935cb183c593417f96967ffcb32e438d834a6840cc8c51ab61dfce8\",\"dweb:/ipfs/QmWqucAgec2mSqtMzMDFSaJWQFUByvw1L6oodDZEwYm5vk\"]},\"/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/V1/IValueswapV1Exchange.sol\":{\"keccak256\":\"0x18347987e5ec9f2db6d046221e16425bbbd2b615f7d857e581eaa3c4622a299e\",\"urls\":[\"bzz-raw://152e46b593cc84f238a26ac798a240a104f83473db87528a1dd90f4624dd70b9\",\"dweb:/ipfs/QmVCrpGsk4cmvLBN56tdcdtaZojFFkwsNrKWw9oZSjRkAT\"]},\"/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/V1/IValueswapV1Factory.sol\":{\"keccak256\":\"0x97cf41f192263151cb96dc3c80d52b155ab550df4814fa66fe7fef808fd2ffab\",\"urls\":[\"bzz-raw://1d67f84c9bcb570a8aaaeb2108a81a454b4516bc67fabfec93f701db30eed84e\",\"dweb:/ipfs/QmYHtYT7E3ftKLdQbCciwjgSipYxt4sr8VVhPyDmLZfC1g\"]},\"@valueswap/lib/contracts/libraries/TransferHelper.sol\":{\"keccak256\":\"0xaff99b54915f57e2a4e71b8d15afd4ee425410e5a6f45c07517ae1beb806f8bd\",\"urls\":[\"bzz-raw://15432ec031f4cfa6709921289e198b030a0c5eac75b5a3e0eb64827a2b3b5595\",\"dweb:/ipfs/QmZvR1KuuDvuzXFiADCngTKyMCTy31uhq9U6CazP59B55j\"]}},\"version\":1}", 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"source": "pragma solidity =0.6.6;\n\nimport '@valueswap/lib/contracts/libraries/TransferHelper.sol';\n\nimport './interfaces/IValueswapV2Migrator.sol';\nimport './interfaces/V1/IValueswapV1Factory.sol';\nimport './interfaces/V1/IValueswapV1Exchange.sol';\nimport './interfaces/IValueswapV2Router01.sol';\nimport './interfaces/IERC20.sol';\n\ncontract ValueswapV2Migrator is IValueswapV2Migrator {\n IValueswapV1Factory immutable factoryV1;\n IValueswapV2Router01 immutable router;\n\n constructor(address _factoryV1, address _router) public {\n factoryV1 = IValueswapV1Factory(_factoryV1);\n router = IValueswapV2Router01(_router);\n }\n\n // needs to accept ETH from any v1 exchange and the router. ideally this could be enforced, as in the router,\n // but it's not possible because it requires a call to the v1 factory, which takes too much gas\n receive() external payable {}\n\n function migrate(address token, uint amountTokenMin, uint amountETHMin, address to, uint deadline)\n external\n override\n {\n IValueswapV1Exchange exchangeV1 = IValueswapV1Exchange(factoryV1.getExchange(token));\n uint liquidityV1 = exchangeV1.balanceOf(msg.sender);\n require(exchangeV1.transferFrom(msg.sender, address(this), liquidityV1), 'TRANSFER_FROM_FAILED');\n (uint amountETHV1, uint amountTokenV1) = exchangeV1.removeLiquidity(liquidityV1, 1, 1, uint(-1));\n TransferHelper.safeApprove(token, address(router), amountTokenV1);\n (uint amountTokenV2, uint amountETHV2,) = router.addLiquidityETH{value: amountETHV1}(\n token,\n amountTokenV1,\n amountTokenMin,\n amountETHMin,\n to,\n deadline\n );\n if (amountTokenV1 > amountTokenV2) {\n TransferHelper.safeApprove(token, address(router), 0); // be a good blockchain citizen, reset allowance to 0\n TransferHelper.safeTransfer(token, msg.sender, amountTokenV1 - amountTokenV2);\n } else if (amountETHV1 > amountETHV2) {\n // addLiquidityETH guarantees that all of amountETHV1 or amountTokenV1 will be used, hence this else is safe\n TransferHelper.safeTransferETH(msg.sender, amountETHV1 - amountETHV2);\n }\n }\n}\n", "sourcePath": "/Users/second/Documents/work/valueswap-v2-periphery/contracts/ValueswapV2Migrator.sol", "ast": { "absolutePath": "/Users/second/Documents/work/valueswap-v2-periphery/contracts/ValueswapV2Migrator.sol", "exportedSymbols": { "ValueswapV2Migrator": [ 202 ] }, "id": 203, "nodeType": "SourceUnit", "nodes": [ { "id": 34, "literals": [ "solidity", "=", "0.6", ".6" ], "nodeType": "PragmaDirective", "src": "0:23:1" }, { "absolutePath": "@valueswap/lib/contracts/libraries/TransferHelper.sol", "file": "@valueswap/lib/contracts/libraries/TransferHelper.sol", "id": 35, "nodeType": "ImportDirective", "scope": 203, "sourceUnit": 9040, "src": "25:63:1", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/IValueswapV2Migrator.sol", "file": "./interfaces/IValueswapV2Migrator.sol", "id": 36, "nodeType": "ImportDirective", "scope": 203, "sourceUnit": 5025, "src": "90:47:1", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/V1/IValueswapV1Factory.sol", "file": "./interfaces/V1/IValueswapV1Factory.sol", "id": 37, "nodeType": "ImportDirective", "scope": 203, "sourceUnit": 5507, "src": "138:49:1", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/V1/IValueswapV1Exchange.sol", "file": "./interfaces/V1/IValueswapV1Exchange.sol", "id": 38, "nodeType": "ImportDirective", "scope": 203, "sourceUnit": 5497, "src": "188:50:1", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/IValueswapV2Router01.sol", "file": "./interfaces/IValueswapV2Router01.sol", "id": 39, "nodeType": "ImportDirective", "scope": 203, "sourceUnit": 5333, "src": "239:47:1", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/second/Documents/work/valueswap-v2-periphery/contracts/interfaces/IERC20.sol", "file": "./interfaces/IERC20.sol", "id": 40, "nodeType": "ImportDirective", "scope": 203, "sourceUnit": 5009, "src": "287:33:1", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 41, "name": "IValueswapV2Migrator", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5024, "src": "354:20:1", "typeDescriptions": { "typeIdentifier": "t_contract$_IValueswapV2Migrator_$5024", "typeString": "contract IValueswapV2Migrator" } }, "id": 42, "nodeType": "InheritanceSpecifier", "src": "354:20:1" } ], "contractDependencies": [ 5024 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 202, "linearizedBaseContracts": [ 202, 5024 ], "name": "ValueswapV2Migrator", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 44, 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