{ "address": "0x55a9d7BCd53FF54B146C52Ec52b94C183636DA93", "abi": [ { "inputs": [], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "indexed": false, "internalType": "uint96", "name": "priceNumerator", "type": "uint96" }, { "indexed": false, "internalType": "uint96", "name": "priceDenominator", "type": "uint96" } ], "name": "AuctionCleared", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "indexed": true, "internalType": "uint64", "name": "userId", "type": "uint64" }, { "indexed": false, "internalType": "uint96", "name": "sellAmount", "type": "uint96" }, { "indexed": false, "internalType": "uint96", "name": "buyAmount", "type": "uint96" } ], "name": "CancellationSellOrder", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "indexed": true, "internalType": "uint64", "name": "userId", "type": "uint64" }, { "indexed": false, "internalType": "uint96", "name": "buyAmount", "type": "uint96" }, { "indexed": false, "internalType": "uint96", "name": "sellAmount", "type": "uint96" } ], "name": "ClaimedFromOrder", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "indexed": true, "internalType": "contract IERC20", "name": "_auctioningToken", "type": "address" }, { "indexed": true, "internalType": "contract IERC20", "name": "_biddingToken", "type": "address" } ], "name": "NewAuction", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "indexed": true, "internalType": "uint64", "name": "userId", "type": "uint64" }, { "indexed": false, "internalType": "uint96", "name": "buyAmount", "type": "uint96" }, { "indexed": false, "internalType": "uint96", "name": "sellAmount", "type": "uint96" } ], "name": "NewSellOrder", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "user", "type": "address" }, { "indexed": false, "internalType": "uint64", "name": "userId", "type": "uint64" } ], "name": "UserRegistration", "type": "event" }, { "inputs": [], "name": "FEE_DENOMINATOR", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "auctionCounter", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "name": "auctionData", "outputs": [ { "internalType": "contract IERC20", "name": "auctioningToken", "type": "address" }, { "internalType": "contract IERC20", "name": "biddingToken", "type": "address" }, { "internalType": "uint256", "name": "auctionEndDate", "type": "uint256" }, { "internalType": "bytes32", "name": "initialAuctionOrder", "type": "bytes32" }, { "internalType": "uint256", "name": "minimumBiddingAmount", "type": "uint256" }, { "internalType": "uint256", "name": "interimSumBidAmount", "type": "uint256" }, { "internalType": "bytes32", "name": "interimOrder", "type": "bytes32" }, { "internalType": "bytes32", "name": "clearingPriceOrder", "type": "bytes32" }, { "internalType": "uint96", "name": "volumeClearingPriceOrder", "type": "uint96" }, { "internalType": "uint256", "name": "feeNumerator", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "internalType": "bytes32[]", "name": "_sellOrders", "type": "bytes32[]" }, { "internalType": "bytes32[]", "name": "_prevSellOrders", "type": "bytes32[]" }, { "internalType": "bytes32[]", "name": "_fallbackPrevSellOrders", "type": "bytes32[]" } ], "name": "cancelSellOrders", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "internalType": "bytes32[]", "name": "orders", "type": "bytes32[]" }, { "internalType": "bytes32[]", "name": "previousOrders", "type": "bytes32[]" } ], "name": "claimFromParticipantOrder", "outputs": [ { "internalType": "uint256", "name": "sumAuctioningTokenAmount", "type": "uint256" }, { "internalType": "uint256", "name": "sumBiddingTokenAmount", "type": "uint256" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "internalType": "bytes32", "name": "order", "type": "bytes32" } ], "name": "containsOrder", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "feeNumerator", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "feeReceiverUserId", "outputs": [ { "internalType": "uint64", "name": "", "type": "uint64" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "auctionId", "type": "uint256" } ], "name": "getSecondsRemainingInBatch", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "user", "type": "address" } ], "name": "getUserId", "outputs": [ { "internalType": "uint64", "name": "userId", "type": "uint64" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "contract IERC20", "name": "_auctioningToken", "type": "address" }, { "internalType": "contract IERC20", "name": "_biddingToken", "type": "address" }, { "internalType": "uint256", "name": "duration", "type": "uint256" }, { "internalType": "uint96", "name": "_auctionedSellAmount", "type": "uint96" }, { "internalType": "uint96", "name": "_minBuyAmount", "type": "uint96" }, { "internalType": "uint256", "name": "minimumBiddingAmount", "type": "uint256" } ], "name": "initiateAuction", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "numUsers", "outputs": [ { "internalType": "uint64", "name": "", "type": "uint64" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "internalType": "uint96[]", "name": "_minBuyAmounts", "type": "uint96[]" }, { "internalType": "uint96[]", "name": "_sellAmounts", "type": "uint96[]" }, { "internalType": "bytes32[]", "name": "_prevSellOrders", "type": "bytes32[]" }, { "internalType": "bytes32[]", "name": "_fallbackPrevSellOrders", "type": "bytes32[]" } ], "name": "placeSellOrders", "outputs": [ { "internalType": "uint64", "name": "userId", "type": "uint64" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "internalType": "uint256", "name": "iterationSteps", "type": "uint256" } ], "name": "precalculateSellAmountSum", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "user", "type": "address" } ], "name": "registerUser", "outputs": [ { "internalType": "uint64", "name": "userId", "type": "uint64" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "name": "sellOrders", "outputs": [ { "internalType": "uint256", "name": "size", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "newFeeNumerator", "type": "uint256" }, { "internalType": "address", "name": "newfeeReceiverAddress", "type": "address" } ], "name": "setFeeParameters", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "auctionId", "type": "uint256" }, { "internalType": "bytes32", "name": "price", "type": "bytes32" } ], "name": "verifyPrice", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "transactionHash": "0x5501f0ba00cc321ea8b7dd8ecb2e064fbe4625eb45c20c1e379d4d31a250c636", "receipt": { "to": null, "from": "0xfB696e9E9e5038DDc78592082689B149AB3a19d5", "contractAddress": "0x55a9d7BCd53FF54B146C52Ec52b94C183636DA93", "transactionIndex": 5, "gasUsed": "4395340", "logsBloom": "0x00000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000800000000400000000020000000000000000000800000000080000000000000000000000400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000020000000000000000000000000000000000000001000000000004000000000000000", "blockHash": "0xd25d10afb0e4f80d1a0ee6e708de016a3f17dd599fd7a046d75a0d5e71143e68", "transactionHash": "0x5501f0ba00cc321ea8b7dd8ecb2e064fbe4625eb45c20c1e379d4d31a250c636", "logs": [ { "transactionIndex": 5, "blockNumber": 7782307, "transactionHash": "0x5501f0ba00cc321ea8b7dd8ecb2e064fbe4625eb45c20c1e379d4d31a250c636", "address": "0x55a9d7BCd53FF54B146C52Ec52b94C183636DA93", "topics": [ "0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0", "0x0000000000000000000000000000000000000000000000000000000000000000", "0x000000000000000000000000fb696e9e9e5038ddc78592082689b149ab3a19d5" ], "data": "0x", "logIndex": 7, "blockHash": "0xd25d10afb0e4f80d1a0ee6e708de016a3f17dd599fd7a046d75a0d5e71143e68" } ], "blockNumber": 7782307, "cumulativeGasUsed": "5044658", "status": 1, "byzantium": true }, "args": [], "solcInputHash": "83e6ba0f85a932b060a11bdaadd92899", "metadata": "{\"compiler\":{\"version\":\"0.6.12+commit.27d51765\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint96\",\"name\":\"priceNumerator\",\"type\":\"uint96\"},{\"indexed\":false,\"internalType\":\"uint96\",\"name\":\"priceDenominator\",\"type\":\"uint96\"}],\"name\":\"AuctionCleared\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"indexed\":true,\"internalType\":\"uint64\",\"name\":\"userId\",\"type\":\"uint64\"},{\"indexed\":false,\"internalType\":\"uint96\",\"name\":\"sellAmount\",\"type\":\"uint96\"},{\"indexed\":false,\"internalType\":\"uint96\",\"name\":\"buyAmount\",\"type\":\"uint96\"}],\"name\":\"CancellationSellOrder\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"indexed\":true,\"internalType\":\"uint64\",\"name\":\"userId\",\"type\":\"uint64\"},{\"indexed\":false,\"internalType\":\"uint96\",\"name\":\"buyAmount\",\"type\":\"uint96\"},{\"indexed\":false,\"internalType\":\"uint96\",\"name\":\"sellAmount\",\"type\":\"uint96\"}],\"name\":\"ClaimedFromOrder\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"indexed\":true,\"internalType\":\"contract IERC20\",\"name\":\"_auctioningToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"contract IERC20\",\"name\":\"_biddingToken\",\"type\":\"address\"}],\"name\":\"NewAuction\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"indexed\":true,\"internalType\":\"uint64\",\"name\":\"userId\",\"type\":\"uint64\"},{\"indexed\":false,\"internalType\":\"uint96\",\"name\":\"buyAmount\",\"type\":\"uint96\"},{\"indexed\":false,\"internalType\":\"uint96\",\"name\":\"sellAmount\",\"type\":\"uint96\"}],\"name\":\"NewSellOrder\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"user\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint64\",\"name\":\"userId\",\"type\":\"uint64\"}],\"name\":\"UserRegistration\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"FEE_DENOMINATOR\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"auctionCounter\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"auctionData\",\"outputs\":[{\"internalType\":\"contract IERC20\",\"name\":\"auctioningToken\",\"type\":\"address\"},{\"internalType\":\"contract IERC20\",\"name\":\"biddingToken\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"auctionEndDate\",\"type\":\"uint256\"},{\"internalType\":\"bytes32\",\"name\":\"initialAuctionOrder\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"minimumBiddingAmount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"interimSumBidAmount\",\"type\":\"uint256\"},{\"internalType\":\"bytes32\",\"name\":\"interimOrder\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"clearingPriceOrder\",\"type\":\"bytes32\"},{\"internalType\":\"uint96\",\"name\":\"volumeClearingPriceOrder\",\"type\":\"uint96\"},{\"internalType\":\"uint256\",\"name\":\"feeNumerator\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"internalType\":\"bytes32[]\",\"name\":\"_sellOrders\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"_prevSellOrders\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"_fallbackPrevSellOrders\",\"type\":\"bytes32[]\"}],\"name\":\"cancelSellOrders\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"internalType\":\"bytes32[]\",\"name\":\"orders\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"previousOrders\",\"type\":\"bytes32[]\"}],\"name\":\"claimFromParticipantOrder\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"sumAuctioningTokenAmount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"sumBiddingTokenAmount\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"internalType\":\"bytes32\",\"name\":\"order\",\"type\":\"bytes32\"}],\"name\":\"containsOrder\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeNumerator\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeReceiverUserId\",\"outputs\":[{\"internalType\":\"uint64\",\"name\":\"\",\"type\":\"uint64\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"}],\"name\":\"getSecondsRemainingInBatch\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"user\",\"type\":\"address\"}],\"name\":\"getUserId\",\"outputs\":[{\"internalType\":\"uint64\",\"name\":\"userId\",\"type\":\"uint64\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contract IERC20\",\"name\":\"_auctioningToken\",\"type\":\"address\"},{\"internalType\":\"contract IERC20\",\"name\":\"_biddingToken\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"duration\",\"type\":\"uint256\"},{\"internalType\":\"uint96\",\"name\":\"_auctionedSellAmount\",\"type\":\"uint96\"},{\"internalType\":\"uint96\",\"name\":\"_minBuyAmount\",\"type\":\"uint96\"},{\"internalType\":\"uint256\",\"name\":\"minimumBiddingAmount\",\"type\":\"uint256\"}],\"name\":\"initiateAuction\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"numUsers\",\"outputs\":[{\"internalType\":\"uint64\",\"name\":\"\",\"type\":\"uint64\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"internalType\":\"uint96[]\",\"name\":\"_minBuyAmounts\",\"type\":\"uint96[]\"},{\"internalType\":\"uint96[]\",\"name\":\"_sellAmounts\",\"type\":\"uint96[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"_prevSellOrders\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"_fallbackPrevSellOrders\",\"type\":\"bytes32[]\"}],\"name\":\"placeSellOrders\",\"outputs\":[{\"internalType\":\"uint64\",\"name\":\"userId\",\"type\":\"uint64\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"iterationSteps\",\"type\":\"uint256\"}],\"name\":\"precalculateSellAmountSum\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"user\",\"type\":\"address\"}],\"name\":\"registerUser\",\"outputs\":[{\"internalType\":\"uint64\",\"name\":\"userId\",\"type\":\"uint64\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"sellOrders\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"size\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"newFeeNumerator\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"newfeeReceiverAddress\",\"type\":\"address\"}],\"name\":\"setFeeParameters\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"auctionId\",\"type\":\"uint256\"},{\"internalType\":\"bytes32\",\"name\":\"price\",\"type\":\"bytes32\"}],\"name\":\"verifyPrice\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"owner()\":{\"details\":\"Returns the address of the current owner.\"},\"renounceOwnership()\":{\"details\":\"Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.\"},\"transferOwnership(address)\":{\"details\":\"Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/EasyAuction.sol\":\"EasyAuction\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/GSN/Context.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/*\\n * @dev Provides information about the current execution context, including the\\n * sender of the transaction and its data. While these are generally available\\n * via msg.sender and msg.data, they should not be accessed in such a direct\\n * manner, since when dealing with GSN meta-transactions the account sending and\\n * paying for execution may not be the actual sender (as far as an application\\n * is concerned).\\n *\\n * This contract is only required for intermediate, library-like contracts.\\n */\\nabstract contract Context {\\n function _msgSender() internal view virtual returns (address payable) {\\n return msg.sender;\\n }\\n\\n function _msgData() internal view virtual returns (bytes memory) {\\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\\n return msg.data;\\n }\\n}\\n\",\"keccak256\":\"0x8d3cb350f04ff49cfb10aef08d87f19dcbaecc8027b0bed12f3275cd12f38cf0\",\"license\":\"MIT\"},\"@openzeppelin/contracts/access/Ownable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\nimport \\\"../GSN/Context.sol\\\";\\n/**\\n * @dev Contract module which provides a basic access control mechanism, where\\n * there is an account (an owner) that can be granted exclusive access to\\n * specific functions.\\n *\\n * By default, the owner account will be the one that deploys the contract. This\\n * can later be changed with {transferOwnership}.\\n *\\n * This module is used through inheritance. It will make available the modifier\\n * `onlyOwner`, which can be applied to your functions to restrict their use to\\n * the owner.\\n */\\nabstract contract Ownable is Context {\\n address private _owner;\\n\\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\\n\\n /**\\n * @dev Initializes the contract setting the deployer as the initial owner.\\n */\\n constructor () internal {\\n address msgSender = _msgSender();\\n _owner = msgSender;\\n emit OwnershipTransferred(address(0), msgSender);\\n }\\n\\n /**\\n * @dev Returns the address of the current owner.\\n */\\n function owner() public view returns (address) {\\n return _owner;\\n }\\n\\n /**\\n * @dev Throws if called by any account other than the owner.\\n */\\n modifier onlyOwner() {\\n require(_owner == _msgSender(), \\\"Ownable: caller is not the owner\\\");\\n _;\\n }\\n\\n /**\\n * @dev Leaves the contract without owner. It will not be possible to call\\n * `onlyOwner` functions anymore. Can only be called by the current owner.\\n *\\n * NOTE: Renouncing ownership will leave the contract without an owner,\\n * thereby removing any functionality that is only available to the owner.\\n */\\n function renounceOwnership() public virtual onlyOwner {\\n emit OwnershipTransferred(_owner, address(0));\\n _owner = address(0);\\n }\\n\\n /**\\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\\n * Can only be called by the current owner.\\n */\\n function transferOwnership(address newOwner) public virtual onlyOwner {\\n require(newOwner != address(0), \\\"Ownable: new owner is the zero address\\\");\\n emit OwnershipTransferred(_owner, newOwner);\\n _owner = newOwner;\\n }\\n}\\n\",\"keccak256\":\"0xf7c39c7e6d06ed3bda90cfefbcbf2ddc32c599c3d6721746546ad64946efccaa\",\"license\":\"MIT\"},\"@openzeppelin/contracts/math/Math.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @dev Standard math utilities missing in the Solidity language.\\n */\\nlibrary Math {\\n /**\\n * @dev Returns the largest of two numbers.\\n */\\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\\n return a >= b ? a : b;\\n }\\n\\n /**\\n * @dev Returns the smallest of two numbers.\\n */\\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\\n return a < b ? a : b;\\n }\\n\\n /**\\n * @dev Returns the average of two numbers. The result is rounded towards\\n * zero.\\n */\\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\\n // (a + b) / 2 can overflow, so we distribute\\n return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);\\n }\\n}\\n\",\"keccak256\":\"0x363bd3b45201f07c9b71c2edc96533468cf14a3d029fabd82fddceb1eb3ebd9c\",\"license\":\"MIT\"},\"@openzeppelin/contracts/math/SafeMath.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\\n * checks.\\n *\\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\\n * in bugs, because programmers usually assume that an overflow raises an\\n * error, which is the standard behavior in high level programming languages.\\n * `SafeMath` restores this intuition by reverting the transaction when an\\n * operation overflows.\\n *\\n * Using this library instead of the unchecked operations eliminates an entire\\n * class of bugs, so it's recommended to use it always.\\n */\\nlibrary SafeMath {\\n /**\\n * @dev Returns the addition of two unsigned integers, reverting on\\n * overflow.\\n *\\n * Counterpart to Solidity's `+` operator.\\n *\\n * Requirements:\\n *\\n * - Addition cannot overflow.\\n */\\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\\n uint256 c = a + b;\\n require(c >= a, \\\"SafeMath: addition overflow\\\");\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the subtraction of two unsigned integers, reverting on\\n * overflow (when the result is negative).\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n *\\n * - Subtraction cannot overflow.\\n */\\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\\n return sub(a, b, \\\"SafeMath: subtraction overflow\\\");\\n }\\n\\n /**\\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\\n * overflow (when the result is negative).\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n *\\n * - Subtraction cannot overflow.\\n */\\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b <= a, errorMessage);\\n uint256 c = a - b;\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the multiplication of two unsigned integers, reverting on\\n * overflow.\\n *\\n * Counterpart to Solidity's `*` operator.\\n *\\n * Requirements:\\n *\\n * - Multiplication cannot overflow.\\n */\\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\\n // benefit is lost if 'b' is also tested.\\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\\n if (a == 0) {\\n return 0;\\n }\\n\\n uint256 c = a * b;\\n require(c / a == b, \\\"SafeMath: multiplication overflow\\\");\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the integer division of two unsigned integers. Reverts on\\n * division by zero. The result is rounded towards zero.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\\n return div(a, b, \\\"SafeMath: division by zero\\\");\\n }\\n\\n /**\\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\\n * division by zero. The result is rounded towards zero.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b > 0, errorMessage);\\n uint256 c = a / b;\\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\\n * Reverts when dividing by zero.\\n *\\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\\n * opcode (which leaves remaining gas untouched) while Solidity uses an\\n * invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\\n return mod(a, b, \\\"SafeMath: modulo by zero\\\");\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\\n * Reverts with custom message when dividing by zero.\\n *\\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\\n * opcode (which leaves remaining gas untouched) while Solidity uses an\\n * invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n *\\n * - The divisor cannot be zero.\\n */\\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b != 0, errorMessage);\\n return a % b;\\n }\\n}\\n\",\"keccak256\":\"0x3b21f2c8d626de3b9925ae33e972d8bf5c8b1bffb3f4ee94daeed7d0679036e6\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 standard as defined in the EIP.\\n */\\ninterface IERC20 {\\n /**\\n * @dev Returns the amount of tokens in existence.\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @dev Returns the amount of tokens owned by `account`.\\n */\\n function balanceOf(address account) external view returns (uint256);\\n\\n /**\\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transfer(address recipient, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Returns the remaining number of tokens that `spender` will be\\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\\n * zero by default.\\n *\\n * This value changes when {approve} or {transferFrom} are called.\\n */\\n function allowance(address owner, address spender) external view returns (uint256);\\n\\n /**\\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\\n * that someone may use both the old and the new allowance by unfortunate\\n * transaction ordering. One possible solution to mitigate this race\\n * condition is to first reduce the spender's allowance to 0 and set the\\n * desired value afterwards:\\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n *\\n * Emits an {Approval} event.\\n */\\n function approve(address spender, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\\n * allowance mechanism. `amount` is then deducted from the caller's\\n * allowance.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\\n * another (`to`).\\n *\\n * Note that `value` may be zero.\\n */\\n event Transfer(address indexed from, address indexed to, uint256 value);\\n\\n /**\\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\\n * a call to {approve}. `value` is the new allowance.\\n */\\n event Approval(address indexed owner, address indexed spender, uint256 value);\\n}\\n\",\"keccak256\":\"0x5f02220344881ce43204ae4a6281145a67bc52c2bb1290a791857df3d19d78f5\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/SafeERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\nimport \\\"./IERC20.sol\\\";\\nimport \\\"../../math/SafeMath.sol\\\";\\nimport \\\"../../utils/Address.sol\\\";\\n\\n/**\\n * @title SafeERC20\\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\\n * contract returns false). Tokens that return no value (and instead revert or\\n * throw on failure) are also supported, non-reverting calls are assumed to be\\n * successful.\\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\\n */\\nlibrary SafeERC20 {\\n using SafeMath for uint256;\\n using Address for address;\\n\\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\\n }\\n\\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\\n }\\n\\n /**\\n * @dev Deprecated. This function has issues similar to the ones found in\\n * {IERC20-approve}, and its usage is discouraged.\\n *\\n * Whenever possible, use {safeIncreaseAllowance} and\\n * {safeDecreaseAllowance} instead.\\n */\\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\\n // safeApprove should only be called when setting an initial allowance,\\n // or when resetting it to zero. To increase and decrease it, use\\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\\n // solhint-disable-next-line max-line-length\\n require((value == 0) || (token.allowance(address(this), spender) == 0),\\n \\\"SafeERC20: approve from non-zero to non-zero allowance\\\"\\n );\\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\\n }\\n\\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\\n uint256 newAllowance = token.allowance(address(this), spender).add(value);\\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\\n }\\n\\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\\n uint256 newAllowance = token.allowance(address(this), spender).sub(value, \\\"SafeERC20: decreased allowance below zero\\\");\\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\\n }\\n\\n /**\\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\\n * on the return value: the return value is optional (but if data is returned, it must not be false).\\n * @param token The token targeted by the call.\\n * @param data The call data (encoded using abi.encode or one of its variants).\\n */\\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\\n // the target address contains contract code and also asserts for success in the low-level call.\\n\\n bytes memory returndata = address(token).functionCall(data, \\\"SafeERC20: low-level call failed\\\");\\n if (returndata.length > 0) { // Return data is optional\\n // solhint-disable-next-line max-line-length\\n require(abi.decode(returndata, (bool)), \\\"SafeERC20: ERC20 operation did not succeed\\\");\\n }\\n }\\n}\\n\",\"keccak256\":\"0xf12dfbe97e6276980b83d2830bb0eb75e0cf4f3e626c2471137f82158ae6a0fc\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Address.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.2 <0.8.0;\\n\\n/**\\n * @dev Collection of functions related to the address type\\n */\\nlibrary Address {\\n /**\\n * @dev Returns true if `account` is a contract.\\n *\\n * [IMPORTANT]\\n * ====\\n * It is unsafe to assume that an address for which this function returns\\n * false is an externally-owned account (EOA) and not a contract.\\n *\\n * Among others, `isContract` will return false for the following\\n * types of addresses:\\n *\\n * - an externally-owned account\\n * - a contract in construction\\n * - an address where a contract will be created\\n * - an address where a contract lived, but was destroyed\\n * ====\\n */\\n function isContract(address account) internal view returns (bool) {\\n // This method relies on extcodesize, which returns 0 for contracts in\\n // construction, since the code is only stored at the end of the\\n // constructor execution.\\n\\n uint256 size;\\n // solhint-disable-next-line no-inline-assembly\\n assembly { size := extcodesize(account) }\\n return size > 0;\\n }\\n\\n /**\\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\\n * `recipient`, forwarding all available gas and reverting on errors.\\n *\\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\\n * imposed by `transfer`, making them unable to receive funds via\\n * `transfer`. {sendValue} removes this limitation.\\n *\\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\\n *\\n * IMPORTANT: because control is transferred to `recipient`, care must be\\n * taken to not create reentrancy vulnerabilities. Consider using\\n * {ReentrancyGuard} or the\\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\\n */\\n function sendValue(address payable recipient, uint256 amount) internal {\\n require(address(this).balance >= amount, \\\"Address: insufficient balance\\\");\\n\\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\\n (bool success, ) = recipient.call{ value: amount }(\\\"\\\");\\n require(success, \\\"Address: unable to send value, recipient may have reverted\\\");\\n }\\n\\n /**\\n * @dev Performs a Solidity function call using a low level `call`. A\\n * plain`call` is an unsafe replacement for a function call: use this\\n * function instead.\\n *\\n * If `target` reverts with a revert reason, it is bubbled up by this\\n * function (like regular Solidity function calls).\\n *\\n * Returns the raw returned data. To convert to the expected return value,\\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\\n *\\n * Requirements:\\n *\\n * - `target` must be a contract.\\n * - calling `target` with `data` must not revert.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\\n return functionCall(target, data, \\\"Address: low-level call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\\n * `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, 0, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but also transferring `value` wei to `target`.\\n *\\n * Requirements:\\n *\\n * - the calling contract must have an ETH balance of at least `value`.\\n * - the called Solidity function must be `payable`.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, value, \\\"Address: low-level call with value failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\\n * with `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\\n require(address(this).balance >= value, \\\"Address: insufficient balance for call\\\");\\n require(isContract(target), \\\"Address: call to non-contract\\\");\\n\\n // solhint-disable-next-line avoid-low-level-calls\\n (bool success, bytes memory returndata) = target.call{ value: value }(data);\\n return _verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\\n return functionStaticCall(target, data, \\\"Address: low-level static call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {\\n require(isContract(target), \\\"Address: static call to non-contract\\\");\\n\\n // solhint-disable-next-line avoid-low-level-calls\\n (bool success, bytes memory returndata) = target.staticcall(data);\\n return _verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {\\n if (success) {\\n return returndata;\\n } else {\\n // Look for revert reason and bubble it up if present\\n if (returndata.length > 0) {\\n // The easiest way to bubble the revert reason is using memory via assembly\\n\\n // solhint-disable-next-line no-inline-assembly\\n assembly {\\n let returndata_size := mload(returndata)\\n revert(add(32, returndata), returndata_size)\\n }\\n } else {\\n revert(errorMessage);\\n }\\n }\\n }\\n}\\n\",\"keccak256\":\"0xa6a15ddddcbf29d2922a1e0d4151b5d2d33da24b93cc9ebc12390e0d855532f8\",\"license\":\"MIT\"},\"contracts/EasyAuction.sol\":{\"content\":\"// SPDX-License-Identifier: LGPL-3.0-or-newer\\npragma solidity >=0.6.8;\\nimport \\\"@openzeppelin/contracts/token/ERC20/IERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC20/SafeERC20.sol\\\";\\nimport \\\"./libraries/IterableOrderedOrderSet.sol\\\";\\nimport \\\"@openzeppelin/contracts/math/Math.sol\\\";\\nimport \\\"@openzeppelin/contracts/math/SafeMath.sol\\\";\\nimport \\\"./libraries/IdToAddressBiMap.sol\\\";\\nimport \\\"./libraries/SafeCast.sol\\\";\\nimport \\\"@openzeppelin/contracts/access/Ownable.sol\\\";\\n\\ncontract EasyAuction is Ownable {\\n using SafeERC20 for IERC20;\\n using SafeMath for uint64;\\n using SafeMath for uint96;\\n using SafeMath for uint256;\\n using SafeCast for uint256;\\n using IterableOrderedOrderSet for IterableOrderedOrderSet.Data;\\n using IterableOrderedOrderSet for bytes32;\\n using IdToAddressBiMap for IdToAddressBiMap.Data;\\n\\n modifier atStageOrderPlacement(uint256 auctionId) {\\n require(\\n block.timestamp < auctionData[auctionId].auctionEndDate,\\n \\\"no longer in order placement phase\\\"\\n );\\n _;\\n }\\n\\n modifier atStageSolutionSubmission(uint256 auctionId) {\\n require(\\n block.timestamp > auctionData[auctionId].auctionEndDate &&\\n auctionData[auctionId].clearingPriceOrder == bytes32(0),\\n \\\"Auction not in solution submission phase\\\"\\n );\\n _;\\n }\\n\\n modifier atStageFinished(uint256 auctionId) {\\n require(\\n auctionData[auctionId].clearingPriceOrder != bytes32(0),\\n \\\"Auction not yet finished\\\"\\n );\\n _;\\n }\\n\\n event NewSellOrder(\\n uint256 indexed auctionId,\\n uint64 indexed userId,\\n uint96 buyAmount,\\n uint96 sellAmount\\n );\\n event CancellationSellOrder(\\n uint256 indexed auctionId,\\n uint64 indexed userId,\\n uint96 sellAmount,\\n uint96 buyAmount\\n );\\n event ClaimedFromOrder(\\n uint256 indexed auctionId,\\n uint64 indexed userId,\\n uint96 buyAmount,\\n uint96 sellAmount\\n );\\n event NewAuction(\\n uint256 indexed auctionId,\\n IERC20 indexed _auctioningToken,\\n IERC20 indexed _biddingToken\\n );\\n event AuctionCleared(\\n uint256 indexed auctionId,\\n uint96 priceNumerator,\\n uint96 priceDenominator\\n );\\n event UserRegistration(address indexed user, uint64 userId);\\n\\n struct AuctionData {\\n IERC20 auctioningToken;\\n IERC20 biddingToken;\\n uint256 auctionEndDate;\\n bytes32 initialAuctionOrder;\\n uint256 minimumBiddingAmount;\\n uint256 interimSumBidAmount;\\n bytes32 interimOrder;\\n bytes32 clearingPriceOrder;\\n uint96 volumeClearingPriceOrder;\\n uint256 feeNumerator;\\n }\\n mapping(uint256 => IterableOrderedOrderSet.Data) public sellOrders;\\n mapping(uint256 => AuctionData) public auctionData;\\n IdToAddressBiMap.Data private registeredUsers;\\n uint64 public numUsers;\\n uint256 public auctionCounter;\\n\\n constructor() public Ownable() {}\\n\\n uint256 public feeNumerator = 0;\\n uint256 public constant FEE_DENOMINATOR = 1000;\\n uint64 public feeReceiverUserId = 0;\\n\\n function setFeeParameters(\\n uint256 newFeeNumerator,\\n address newfeeReceiverAddress\\n ) public onlyOwner() {\\n require(\\n newFeeNumerator <= 15,\\n \\\"Fee is not allowed to be set higher than 1.5%\\\"\\n );\\n // caution: for currently running auctions, the feeReceiverUserId is changing as well.\\n feeReceiverUserId = getUserId(newfeeReceiverAddress);\\n feeNumerator = newFeeNumerator;\\n }\\n\\n function initiateAuction(\\n IERC20 _auctioningToken,\\n IERC20 _biddingToken,\\n uint256 duration,\\n uint96 _auctionedSellAmount,\\n uint96 _minBuyAmount,\\n uint256 minimumBiddingAmount\\n ) public returns (uint256) {\\n uint64 userId = getUserId(msg.sender);\\n\\n // withdraws sellAmount + fees\\n _auctioningToken.safeTransferFrom(\\n msg.sender,\\n address(this),\\n _auctionedSellAmount.mul(FEE_DENOMINATOR.add(feeNumerator)).div(\\n FEE_DENOMINATOR\\n )\\n );\\n require(\\n minimumBiddingAmount > 0,\\n \\\"minimumBiddingAmount is not allowed to be zero\\\"\\n );\\n auctionCounter++;\\n auctionData[auctionCounter] = AuctionData(\\n _auctioningToken,\\n _biddingToken,\\n block.timestamp + duration,\\n IterableOrderedOrderSet.encodeOrder(\\n userId,\\n _minBuyAmount,\\n _auctionedSellAmount\\n ),\\n minimumBiddingAmount,\\n 0,\\n bytes32(0),\\n bytes32(0),\\n 0,\\n feeNumerator\\n );\\n emit NewAuction(auctionCounter, _auctioningToken, _biddingToken);\\n return auctionCounter;\\n }\\n\\n function placeSellOrders(\\n uint256 auctionId,\\n uint96[] memory _minBuyAmounts,\\n uint96[] memory _sellAmounts,\\n bytes32[] memory _prevSellOrders,\\n bytes32[] memory _fallbackPrevSellOrders\\n ) public atStageOrderPlacement(auctionId) returns (uint64 userId) {\\n {\\n // Run verifications of all orders\\n (\\n ,\\n uint96 buyAmountOfInitialAuctionOrder,\\n uint96 sellAmountOfInitialAuctionOrder\\n ) = auctionData[auctionId].initialAuctionOrder.decodeOrder();\\n for (uint256 i = 0; i < _minBuyAmounts.length; i++) {\\n require(\\n _minBuyAmounts[i].mul(buyAmountOfInitialAuctionOrder) <\\n sellAmountOfInitialAuctionOrder.mul(_sellAmounts[i]),\\n \\\"limit price not better than mimimal offer\\\"\\n );\\n // orders should have a minimum bid size in order to limit the gas\\n // required to compute the final price of the auction.\\n require(\\n _sellAmounts[i] >\\n auctionData[auctionId].minimumBiddingAmount,\\n \\\"order too small\\\"\\n );\\n }\\n }\\n uint256 sumOfSellAmounts = 0;\\n userId = getUserId(msg.sender);\\n for (uint256 i = 0; i < _minBuyAmounts.length; i++) {\\n bool success =\\n sellOrders[auctionId].insertWithHighSuccessRate(\\n IterableOrderedOrderSet.encodeOrder(\\n userId,\\n _minBuyAmounts[i],\\n _sellAmounts[i]\\n ),\\n _prevSellOrders[i],\\n _fallbackPrevSellOrders[i]\\n );\\n if (success) {\\n sumOfSellAmounts = sumOfSellAmounts.add(_sellAmounts[i]);\\n emit NewSellOrder(\\n auctionId,\\n userId,\\n _minBuyAmounts[i],\\n _sellAmounts[i]\\n );\\n }\\n }\\n auctionData[auctionId].biddingToken.safeTransferFrom(\\n msg.sender,\\n address(this),\\n sumOfSellAmounts\\n );\\n }\\n\\n function cancelSellOrders(\\n uint256 auctionId,\\n bytes32[] memory _sellOrders,\\n bytes32[] memory _prevSellOrders,\\n bytes32[] memory _fallbackPrevSellOrders\\n ) public atStageOrderPlacement(auctionId) {\\n uint64 userId = getUserId(msg.sender);\\n uint256 claimableAmount = 0;\\n for (uint256 i = 0; i < _sellOrders.length; i++) {\\n bool success =\\n sellOrders[auctionId].removeWithHighSuccessRate(\\n _sellOrders[i],\\n _prevSellOrders[i],\\n _fallbackPrevSellOrders[i]\\n );\\n if (success) {\\n (\\n uint64 userIdOfIter,\\n uint96 buyAmountOfIter,\\n uint96 sellAmountOfIter\\n ) = _sellOrders[i].decodeOrder();\\n require(\\n userIdOfIter == userId,\\n \\\"Only the user can cancel his orders\\\"\\n );\\n claimableAmount = claimableAmount.add(sellAmountOfIter);\\n emit CancellationSellOrder(\\n auctionId,\\n userId,\\n buyAmountOfIter,\\n sellAmountOfIter\\n );\\n }\\n }\\n auctionData[auctionId].biddingToken.safeTransfer(\\n msg.sender,\\n claimableAmount\\n );\\n }\\n\\n function precalculateSellAmountSum(\\n uint256 auctionId,\\n uint256 iterationSteps\\n ) public atStageSolutionSubmission(auctionId) {\\n (, , uint96 auctioneerSellAmount) =\\n auctionData[auctionId].initialAuctionOrder.decodeOrder();\\n uint256 sumBidAmount = auctionData[auctionId].interimSumBidAmount;\\n bytes32 iterOrder = auctionData[auctionId].interimOrder;\\n if (iterOrder == bytes32(0)) {\\n iterOrder = IterableOrderedOrderSet.QUEUE_START;\\n }\\n\\n for (uint256 i = 0; i < iterationSteps; i++) {\\n iterOrder = sellOrders[auctionId].next(iterOrder);\\n (, , uint96 sellAmountOfIter) = iterOrder.decodeOrder();\\n sumBidAmount = sumBidAmount.add(sellAmountOfIter);\\n }\\n\\n // it is checked that not too many iteration steps were taken:\\n // require that the sum of SellAmounts times the price of the last order\\n // is not more than intially sold amount\\n (, uint96 buyAmountOfIter, uint96 sellAmountOfIter) =\\n iterOrder.decodeOrder();\\n require(\\n sumBidAmount.mul(buyAmountOfIter) <\\n auctioneerSellAmount.mul(sellAmountOfIter),\\n \\\"too many orders summed up\\\"\\n );\\n\\n auctionData[auctionId].interimSumBidAmount = sumBidAmount;\\n auctionData[auctionId].interimOrder = iterOrder;\\n }\\n\\n // @dev function verifiying the auction price\\n // @parameter price: This should either be a price encoded as an order\\n // with userId = 0, priceNumerator = buyAmount, priceDenominator = sellAmount\\n // or it should reference to the particular order settled only partially within\\n // this auction.\\n function verifyPrice(uint256 auctionId, bytes32 price)\\n public\\n atStageSolutionSubmission(auctionId)\\n {\\n (, uint96 priceNumerator, uint96 priceDenominator) =\\n price.decodeOrder();\\n (\\n uint64 auctioneerId,\\n uint96 auctioneerBuyAmount,\\n uint96 auctioneerSellAmount\\n ) = auctionData[auctionId].initialAuctionOrder.decodeOrder();\\n require(priceNumerator > 0, \\\"price must be postive\\\");\\n uint256 sumBidAmount = auctionData[auctionId].interimSumBidAmount;\\n bytes32 iterOrder = auctionData[auctionId].interimOrder;\\n if (iterOrder == bytes32(0)) {\\n iterOrder = IterableOrderedOrderSet.QUEUE_START;\\n }\\n if (sellOrders[auctionId].size > 0) {\\n iterOrder = sellOrders[auctionId].next(iterOrder);\\n while (iterOrder != price && iterOrder.smallerThan(price)) {\\n (, , uint96 sellAmountOfIter) = iterOrder.decodeOrder();\\n sumBidAmount = sumBidAmount.add(sellAmountOfIter);\\n iterOrder = sellOrders[auctionId].next(iterOrder);\\n }\\n }\\n uint256 sumBuyAmount =\\n sumBidAmount.mul(priceNumerator).div(priceDenominator);\\n if (price == iterOrder) {\\n // case 1: one sellOrder is partically filled\\n // The partially filled order is the iterOrder, if:\\n // 1) The sumBuyAmounts is not bigger than the intitial order's sell amount\\n // i.e, sellAmount >= sumBuyAmount\\n // 2) The volume of the particial order is not bigger than its sell volume\\n // i.e. auctionData[auctionId].volumeClearingPriceOrder <= sellAmountOfIter,\\n (, , uint96 sellAmountOfIter) = iterOrder.decodeOrder();\\n uint256 clearingOrderBuyAmount =\\n auctioneerSellAmount.sub(sumBuyAmount);\\n // Attention: This conversion can prevent closing auctions, if rounding down\\n // to uint96 does fail. Should not happen, unless token has more than 18 digits\\n // or prices are huge.\\n auctionData[auctionId].volumeClearingPriceOrder = (\\n clearingOrderBuyAmount.mul(priceDenominator).div(priceNumerator)\\n )\\n .toUint96();\\n require(\\n auctionData[auctionId].volumeClearingPriceOrder <=\\n sellAmountOfIter,\\n \\\"order can not be clearing order\\\"\\n );\\n auctionData[auctionId].clearingPriceOrder = iterOrder;\\n } else {\\n if (sumBuyAmount < auctioneerSellAmount) {\\n // case 2: initialAuction order is partically filled\\n // We require that the price was the initialOrderLimit price's inverse\\n // as this ensures that the for-loop iterated through all orders\\n // and all orders are considered\\n require(\\n priceNumerator.mul(auctioneerBuyAmount) ==\\n auctioneerSellAmount.mul(priceDenominator),\\n \\\"supplied price must be inverse initialOrderLimit\\\"\\n );\\n auctionData[auctionId].volumeClearingPriceOrder = sumBuyAmount\\n .toUint96();\\n auctionData[auctionId]\\n .clearingPriceOrder = IterableOrderedOrderSet.encodeOrder(\\n auctioneerId,\\n priceNumerator,\\n priceDenominator\\n );\\n } else {\\n // case 3: no order is partically filled\\n // In this case the sumBuyAmount must be equal to\\n // the sellAmount of the initialAuctionOrder, without\\n // any rounding errors.\\n // This price is always existing as we can choose\\n // priceNumerator = sellAmount and priceDenominator = sumSellAmount\\n auctionData[auctionId].clearingPriceOrder = price;\\n require(\\n sumBuyAmount == auctioneerSellAmount,\\n \\\"price is not clearing price\\\"\\n );\\n require(\\n priceNumerator.mul(auctioneerBuyAmount) <=\\n auctioneerSellAmount.mul(priceDenominator),\\n \\\"clearing price is better than initialAuctionOrder\\\"\\n );\\n }\\n }\\n\\n emit AuctionCleared(auctionId, priceNumerator, priceDenominator);\\n if (auctionData[auctionId].feeNumerator > 0) {\\n claimFees(auctionId);\\n }\\n claimAuctioneerFunds(auctionId);\\n }\\n\\n function claimFromParticipantOrder(\\n uint256 auctionId,\\n bytes32[] memory orders,\\n bytes32[] memory previousOrders\\n )\\n public\\n atStageFinished(auctionId)\\n returns (\\n uint256 sumAuctioningTokenAmount,\\n uint256 sumBiddingTokenAmount\\n )\\n {\\n AuctionData memory auction = auctionData[auctionId];\\n (, uint96 priceNumerator, uint96 priceDenominator) =\\n auction.clearingPriceOrder.decodeOrder();\\n (uint64 userId, , ) = orders[0].decodeOrder();\\n for (uint256 i = 0; i < orders.length; i++) {\\n require(\\n sellOrders[auctionId].remove(orders[i], previousOrders[i]),\\n \\\"order is no longer claimable\\\"\\n );\\n (uint64 userIdOrder, uint96 buyAmount, uint96 sellAmount) =\\n orders[i].decodeOrder();\\n require(\\n userIdOrder == userId,\\n \\\"only allowed to claim for same user\\\"\\n );\\n if (orders[i] == auction.clearingPriceOrder) {\\n sumAuctioningTokenAmount = sumAuctioningTokenAmount.add(\\n auction.volumeClearingPriceOrder.mul(priceNumerator).div(\\n priceDenominator\\n )\\n );\\n sumBiddingTokenAmount = sumBiddingTokenAmount.add(\\n sellAmount.sub(auction.volumeClearingPriceOrder)\\n );\\n } else {\\n if (orders[i].smallerThan(auction.clearingPriceOrder)) {\\n sumAuctioningTokenAmount = sumAuctioningTokenAmount.add(\\n sellAmount.mul(priceNumerator).div(priceDenominator)\\n );\\n } else {\\n sumBiddingTokenAmount = sumBiddingTokenAmount.add(\\n sellAmount\\n );\\n }\\n }\\n emit ClaimedFromOrder(auctionId, userId, buyAmount, sellAmount);\\n }\\n sendOutTokens(\\n auctionId,\\n sumAuctioningTokenAmount,\\n sumBiddingTokenAmount,\\n userId\\n );\\n }\\n\\n function claimAuctioneerFunds(uint256 auctionId)\\n internal\\n returns (uint256 auctioningTokenAmount, uint256 biddingTokenAmount)\\n {\\n (uint64 auctioneerId, uint96 buyAmount, uint96 sellAmount) =\\n auctionData[auctionId].initialAuctionOrder.decodeOrder();\\n auctionData[auctionId].initialAuctionOrder = bytes32(0);\\n (, uint96 priceNumerator, uint96 priceDenominator) =\\n auctionData[auctionId].clearingPriceOrder.decodeOrder();\\n if (priceNumerator.mul(buyAmount) == priceDenominator.mul(sellAmount)) {\\n // In this case we have a partial match of the initialSellOrder\\n auctioningTokenAmount = sellAmount.sub(\\n auctionData[auctionId].volumeClearingPriceOrder\\n );\\n biddingTokenAmount = auctionData[auctionId]\\n .volumeClearingPriceOrder\\n .mul(priceDenominator)\\n .div(priceNumerator);\\n } else {\\n biddingTokenAmount = sellAmount.mul(priceDenominator).div(\\n priceNumerator\\n );\\n }\\n sendOutTokens(\\n auctionId,\\n auctioningTokenAmount,\\n biddingTokenAmount,\\n auctioneerId\\n );\\n }\\n\\n function claimFees(uint256 auctionId) internal {\\n (uint64 auctioneerId, uint96 buyAmount, uint96 sellAmount) =\\n auctionData[auctionId].initialAuctionOrder.decodeOrder();\\n (, uint96 priceNumerator, uint96 priceDenominator) =\\n auctionData[auctionId].clearingPriceOrder.decodeOrder();\\n uint256 feeAmount =\\n sellAmount.mul(auctionData[auctionId].feeNumerator).div(\\n FEE_DENOMINATOR\\n );\\n if (priceNumerator.mul(buyAmount) == priceDenominator.mul(sellAmount)) {\\n // In this case we have a partial match of the initialSellOrder\\n uint256 auctioningTokenAmount =\\n sellAmount.sub(auctionData[auctionId].volumeClearingPriceOrder);\\n sendOutTokens(\\n auctionId,\\n feeAmount.mul(auctioningTokenAmount).div(sellAmount),\\n 0,\\n feeReceiverUserId\\n );\\n sendOutTokens(\\n auctionId,\\n feeAmount.mul(sellAmount.sub(auctioningTokenAmount)).div(\\n sellAmount\\n ),\\n 0,\\n auctioneerId\\n );\\n } else {\\n sendOutTokens(auctionId, feeAmount, 0, feeReceiverUserId);\\n }\\n }\\n\\n function sendOutTokens(\\n uint256 auctionId,\\n uint256 auctioningTokenAmount,\\n uint256 biddingTokenAmount,\\n uint64 userId\\n ) internal {\\n address userAddress = registeredUsers.getAddressAt(userId);\\n if (auctioningTokenAmount > 0) {\\n auctionData[auctionId].auctioningToken.safeTransfer(\\n userAddress,\\n auctioningTokenAmount\\n );\\n }\\n if (biddingTokenAmount > 0) {\\n auctionData[auctionId].biddingToken.safeTransfer(\\n userAddress,\\n biddingTokenAmount\\n );\\n }\\n }\\n\\n function registerUser(address user) public returns (uint64 userId) {\\n require(\\n registeredUsers.insert(numUsers, user),\\n \\\"User already registered\\\"\\n );\\n userId = numUsers;\\n numUsers = numUsers.add(1).toUint64();\\n emit UserRegistration(user, userId);\\n }\\n\\n function getUserId(address user) public returns (uint64 userId) {\\n if (registeredUsers.hasAddress(user)) {\\n return registeredUsers.getId(user);\\n } else {\\n return registerUser(user);\\n }\\n }\\n\\n function getSecondsRemainingInBatch(uint256 auctionId)\\n public\\n view\\n returns (uint256)\\n {\\n if (auctionData[auctionId].auctionEndDate < block.timestamp) {\\n return 0;\\n }\\n return auctionData[auctionId].auctionEndDate.sub(block.timestamp);\\n }\\n\\n function containsOrder(uint256 auctionId, bytes32 order)\\n public\\n view\\n returns (bool)\\n {\\n return sellOrders[auctionId].contains(order);\\n }\\n}\\n\",\"keccak256\":\"0x8c7029f6df4d6aed63e19df235b9ed9714b9e54f9cf10c97bad43394d33ed311\",\"license\":\"LGPL-3.0-or-newer\"},\"contracts/libraries/IdToAddressBiMap.sol\":{\"content\":\"// SPDX-License-Identifier: LGPL-3.0-or-newer\\npragma solidity ^0.6.0;\\n\\nlibrary IdToAddressBiMap {\\n struct Data {\\n mapping(uint64 => address) idToAddress;\\n mapping(address => uint64) addressToId;\\n }\\n\\n function hasId(Data storage self, uint64 id) internal view returns (bool) {\\n return self.idToAddress[id + 1] != address(0);\\n }\\n\\n function hasAddress(Data storage self, address addr)\\n internal\\n view\\n returns (bool)\\n {\\n return self.addressToId[addr] != 0;\\n }\\n\\n function getAddressAt(Data storage self, uint64 id)\\n internal\\n view\\n returns (address)\\n {\\n require(hasId(self, id), \\\"Must have ID to get Address\\\");\\n return self.idToAddress[id + 1];\\n }\\n\\n function getId(Data storage self, address addr)\\n internal\\n view\\n returns (uint64)\\n {\\n require(hasAddress(self, addr), \\\"Must have Address to get ID\\\");\\n return self.addressToId[addr] - 1;\\n }\\n\\n function insert(\\n Data storage self,\\n uint64 id,\\n address addr\\n ) internal returns (bool) {\\n require(addr != address(0), \\\"Cannot insert zero address\\\");\\n require(id != uint64(-1), \\\"Cannot insert max uint64\\\");\\n // Ensure bijectivity of the mappings\\n if (\\n self.addressToId[addr] != 0 ||\\n self.idToAddress[id + 1] != address(0)\\n ) {\\n return false;\\n }\\n self.idToAddress[id + 1] = addr;\\n self.addressToId[addr] = id + 1;\\n return true;\\n }\\n}\\n\",\"keccak256\":\"0x0d404b2e03864d7a388840e30bfb6da0ddd3dd2f152097894838b72d86e30a39\",\"license\":\"LGPL-3.0-or-newer\"},\"contracts/libraries/IterableOrderedOrderSet.sol\":{\"content\":\"// SPDX-License-Identifier: LGPL-3.0-or-newer\\npragma solidity >=0.6.8;\\n\\nimport \\\"@openzeppelin/contracts/math/SafeMath.sol\\\";\\n\\nlibrary IterableOrderedOrderSet {\\n using SafeMath for uint96;\\n using IterableOrderedOrderSet for bytes32;\\n\\n // represents smallest possible value for an order under comparison of fn smallerThan()\\n bytes32 internal constant QUEUE_START =\\n 0x0000000000000000000000000000000000000000000000000000000000000001;\\n // represents highest possible value for an order under comparison of fn smallerThan()\\n bytes32 internal constant QUEUE_END =\\n 0xffffffffffffffffffffffffffffffffffffffff000000000000000000000001;\\n\\n struct Data {\\n mapping(bytes32 => bytes32) nextMap;\\n uint256 size;\\n }\\n\\n struct Order {\\n uint64 owner;\\n uint96 buyAmount;\\n uint96 sellAmount;\\n }\\n\\n function insertWithHighSuccessRate(\\n Data storage self,\\n bytes32 elementToInsert,\\n bytes32 elementBeforeNewOne,\\n bytes32 secondElementBeforeNewOne\\n ) internal returns (bool success) {\\n success = insert(self, elementToInsert, elementBeforeNewOne);\\n if (!success) {\\n success = insert(self, elementToInsert, secondElementBeforeNewOne);\\n }\\n }\\n\\n function insert(\\n Data storage self,\\n bytes32 elementToInsert,\\n bytes32 elementBeforeNewOne\\n ) internal returns (bool) {\\n (, , uint96 denominator) = decodeOrder(elementToInsert);\\n require(denominator != uint96(0), \\\"Inserting zero is not supported\\\");\\n require(\\n !(elementToInsert == QUEUE_START || elementToInsert == QUEUE_END),\\n \\\"Inserting element is not valid\\\"\\n );\\n if (contains(self, elementToInsert)) {\\n return false;\\n }\\n if (\\n !(elementBeforeNewOne == QUEUE_START ||\\n contains(self, elementBeforeNewOne))\\n ) {\\n return false;\\n }\\n bool foundposition = false;\\n if (self.size == 0) {\\n self.nextMap[QUEUE_START] = elementToInsert;\\n self.nextMap[elementToInsert] = QUEUE_END;\\n } else {\\n bytes32 elementBeforeNewOneIteration = elementBeforeNewOne;\\n while (!foundposition) {\\n if (elementBeforeNewOneIteration.smallerThan(elementToInsert)) {\\n if (\\n !self.nextMap[elementBeforeNewOneIteration].smallerThan(\\n elementToInsert\\n )\\n ) {\\n // Since we have:\\n // elementBeforeNewOneIteration\\n priceNumeratorRight.mul(priceDenominatorLeft)\\n ) return false;\\n\\n require(\\n userIdLeft != userIdRight,\\n \\\"user is not allowed to place same order twice\\\"\\n );\\n if (userIdLeft < userIdRight) {\\n return true;\\n }\\n return false;\\n }\\n\\n function first(Data storage self) internal view returns (bytes32) {\\n require(self.size > 0, \\\"Trying to get first from empty set\\\");\\n return self.nextMap[QUEUE_START];\\n }\\n\\n function next(Data storage self, bytes32 value)\\n internal\\n view\\n returns (bytes32)\\n {\\n require(\\n value != QUEUE_END,\\n \\\"Trying to get next of non-existent element\\\"\\n );\\n require(\\n self.nextMap[value] != bytes32(0),\\n \\\"Trying to get next of last element\\\"\\n );\\n return self.nextMap[value];\\n }\\n\\n function decodeOrder(bytes32 _orderData)\\n internal\\n pure\\n returns (\\n uint64 userId,\\n uint96 buyAmount,\\n uint96 sellAmount\\n )\\n {\\n userId = uint64(uint256(_orderData) / 2**192);\\n buyAmount = uint96((uint256(_orderData) % 2**192) / 2**96);\\n sellAmount = uint96((uint256(_orderData) % 2**96));\\n }\\n\\n function encodeOrder(\\n uint64 userId,\\n uint96 buyAmount,\\n uint96 sellAmount\\n ) internal pure returns (bytes32) {\\n return\\n bytes32(\\n uint256(userId) *\\n 2**192 +\\n uint256(buyAmount) *\\n 2**96 +\\n uint256(sellAmount)\\n );\\n }\\n}\\n\",\"keccak256\":\"0x01c3e4c5fe36afbad7c24521f103429d55787d012bbc4a6d439b802ee808765a\",\"license\":\"LGPL-3.0-or-newer\"},\"contracts/libraries/SafeCast.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n\\npragma solidity >=0.6.0 <0.8.0;\\n\\n/**\\n * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow\\n * checks.\\n *\\n * Logic was copied and modified from here: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/SafeCast.sol\\n */\\nlibrary SafeCast {\\n function toUint96(uint256 value) internal pure returns (uint96) {\\n require(value < 2**96, \\\"SafeCast: value doesn't fit in 96 bits\\\");\\n return uint96(value);\\n }\\n\\n function toUint64(uint256 value) internal pure returns (uint64) {\\n require(value < 2**64, \\\"SafeCast: value doesn't fit in 64 bits\\\");\\n return uint64(value);\\n }\\n}\\n\",\"keccak256\":\"0x9f12a3c511cd8ea260bc8faa7d2e4d59a823328ef07c26af506385aa3e92b200\",\"license\":\"MIT\"}},\"version\":1}", "bytecode": 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"devdoc": { "kind": "dev", "methods": { "owner()": { "details": "Returns the address of the current owner." }, "renounceOwnership()": { "details": "Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner." }, "transferOwnership(address)": { "details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner." } }, "version": 1 }, "userdoc": { "kind": "user", "methods": {}, "version": 1 }, "storageLayout": { "storage": [ { "astId": 30, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "_owner", "offset": 0, "slot": "0", "type": "t_address" }, { "astId": 1111, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "sellOrders", "offset": 0, "slot": "1", "type": "t_mapping(t_uint256,t_struct(Data)2623_storage)" }, { "astId": 1115, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "auctionData", "offset": 0, "slot": "2", "type": "t_mapping(t_uint256,t_struct(AuctionData)1107_storage)" }, { "astId": 1117, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "registeredUsers", "offset": 0, "slot": "3", "type": "t_struct(Data)2434_storage" }, { "astId": 1119, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "numUsers", "offset": 0, "slot": "5", "type": "t_uint64" }, { "astId": 1121, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "auctionCounter", "offset": 0, "slot": "6", "type": "t_uint256" }, { "astId": 1130, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "feeNumerator", "offset": 0, "slot": "7", "type": "t_uint256" }, { "astId": 1136, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "feeReceiverUserId", "offset": 0, "slot": "8", "type": "t_uint64" } ], "types": { "t_address": { "encoding": "inplace", "label": "address", "numberOfBytes": "20" }, "t_bytes32": { "encoding": "inplace", "label": "bytes32", "numberOfBytes": "32" }, "t_contract(IERC20)478": { "encoding": "inplace", "label": "contract IERC20", "numberOfBytes": "20" }, "t_mapping(t_address,t_uint64)": { "encoding": "mapping", "key": "t_address", "label": "mapping(address => uint64)", "numberOfBytes": "32", "value": "t_uint64" }, "t_mapping(t_bytes32,t_bytes32)": { "encoding": "mapping", "key": "t_bytes32", "label": "mapping(bytes32 => bytes32)", "numberOfBytes": "32", "value": "t_bytes32" }, "t_mapping(t_uint256,t_struct(AuctionData)1107_storage)": { "encoding": "mapping", "key": "t_uint256", "label": "mapping(uint256 => struct EasyAuction.AuctionData)", "numberOfBytes": "32", "value": "t_struct(AuctionData)1107_storage" }, "t_mapping(t_uint256,t_struct(Data)2623_storage)": { "encoding": "mapping", "key": "t_uint256", "label": "mapping(uint256 => struct IterableOrderedOrderSet.Data)", "numberOfBytes": "32", "value": "t_struct(Data)2623_storage" }, "t_mapping(t_uint64,t_address)": { "encoding": "mapping", "key": "t_uint64", "label": "mapping(uint64 => address)", "numberOfBytes": "32", "value": "t_address" }, "t_struct(AuctionData)1107_storage": { "encoding": "inplace", "label": "struct EasyAuction.AuctionData", "members": [ { "astId": 1088, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "auctioningToken", "offset": 0, "slot": "0", "type": "t_contract(IERC20)478" }, { "astId": 1090, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "biddingToken", "offset": 0, "slot": "1", "type": "t_contract(IERC20)478" }, { "astId": 1092, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "auctionEndDate", "offset": 0, "slot": "2", "type": "t_uint256" }, { "astId": 1094, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "initialAuctionOrder", "offset": 0, "slot": "3", "type": "t_bytes32" }, { "astId": 1096, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "minimumBiddingAmount", "offset": 0, "slot": "4", "type": "t_uint256" }, { "astId": 1098, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "interimSumBidAmount", "offset": 0, "slot": "5", "type": "t_uint256" }, { "astId": 1100, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "interimOrder", "offset": 0, "slot": "6", "type": "t_bytes32" }, { "astId": 1102, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "clearingPriceOrder", "offset": 0, "slot": "7", "type": "t_bytes32" }, { "astId": 1104, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "volumeClearingPriceOrder", "offset": 0, "slot": "8", "type": "t_uint96" }, { "astId": 1106, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "feeNumerator", "offset": 0, "slot": "9", "type": "t_uint256" } ], "numberOfBytes": "320" }, "t_struct(Data)2434_storage": { "encoding": "inplace", "label": "struct IdToAddressBiMap.Data", "members": [ { "astId": 2429, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "idToAddress", "offset": 0, "slot": "0", "type": "t_mapping(t_uint64,t_address)" }, { "astId": 2433, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "addressToId", "offset": 0, "slot": "1", "type": "t_mapping(t_address,t_uint64)" } ], "numberOfBytes": "64" }, "t_struct(Data)2623_storage": { "encoding": "inplace", "label": "struct IterableOrderedOrderSet.Data", "members": [ { "astId": 2620, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "nextMap", "offset": 0, "slot": "0", "type": "t_mapping(t_bytes32,t_bytes32)" }, { "astId": 2622, "contract": "contracts/EasyAuction.sol:EasyAuction", "label": "size", "offset": 0, "slot": "1", "type": "t_uint256" } ], "numberOfBytes": "64" }, "t_uint256": { "encoding": "inplace", "label": "uint256", "numberOfBytes": "32" }, "t_uint64": { "encoding": "inplace", "label": "uint64", "numberOfBytes": "8" }, "t_uint96": { "encoding": "inplace", "label": "uint96", "numberOfBytes": "12" } } } }