{ "contractName": "TokenPriceDataFeed", "abi": [ { "constant": true, "inputs": [ { "name": "startIndex", "type": "uint256" }, { "name": "endIndex", "type": "uint256" } ], "name": "medianizeByIndices", "outputs": [ { "name": "medianValue", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "_date", "type": "uint256" } ], "name": "dateHasResult", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "dataSource", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "token2", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "exchangeAdapter", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "_index", "type": "uint256" } ], "name": "resultByIndex", "outputs": [ { "name": "", "type": "bytes32" }, { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "latestResult", "outputs": [ { "name": "", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "latestResultDate", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_result", "type": "bytes32" }, { "name": "_date", "type": "uint256" } ], "name": "setResult", "outputs": [ { "name": "index", "type": "uint256" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "_date", "type": "uint256" } ], "name": "resultByDate", "outputs": [ { "name": "", "type": "bytes32" }, { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "totalResults", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "startDate", "type": "uint256" }, { "name": "endDate", "type": "uint256" } ], "name": "medianizeByTimeframe", "outputs": [ { "name": "medianValue", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "token1", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "_index", "type": "uint256" } ], "name": "indexHasResult", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "_result", "type": "bytes32" }, { "indexed": false, "name": "_date", "type": "uint256" }, { "indexed": false, "name": "_index", "type": "uint256" }, { "indexed": false, "name": "_sender", "type": "address" } ], "name": "ResultSet", "type": "event" }, { "constant": false, "inputs": [ { "name": "_token1", "type": "address" }, { "name": "_token2", "type": "address" }, { "name": "_exchangeAdapter", "type": "address" } ], "name": "initialize", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_dataSource", "type": "address" } ], "name": "initialize", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [], "name": "logResult", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "viewCurrentResult", "outputs": [ { "name": "", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "bytecode": 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"source": "pragma solidity >=0.4.24;\n\nimport \"./TimeMedianDataFeed.sol\";\nimport \"../ExchangeAdapters/IExchangeAdapter.sol\";\n\ncontract TokenPriceDataFeed is TimeMedianDataFeed {\n address public token1;\n address public token2;\n IExchangeAdapter public exchangeAdapter;\n\n function initialize(\n address _token1,\n address _token2,\n IExchangeAdapter _exchangeAdapter\n )\n public\n {\n require(_exchangeAdapter.tokenPairExists(_token1, _token2), 'token pair does not exist');\n\n token1 = _token1;\n token2 = _token2;\n exchangeAdapter = _exchangeAdapter;\n\n // set dataSource to `this` so setResult can only be called from this contract\n DataFeedOracleBase.initialize(address(this));\n }\n\n /**\n * @dev logs current exchange price in dataFeed at current block timestamp\n */\n function logResult() public {\n uint price = exchangeAdapter.getPriceForTokenPair(token1, token2);\n TimeMedianDataFeed(this).setResult(bytes32(price), uint256(block.timestamp));\n }\n\n /**\n * @dev returns the value of the current price according to the exchange\n */\n function viewCurrentResult() public view returns (bytes32) {\n return bytes32(exchangeAdapter.getPriceForTokenPair(token1, token2));\n }\n}\n", "sourcePath": "/Users/mfcalvanese/dev/eth/token-price-oracles/contracts/DataFeeds/TokenPriceDataFeed.sol", "ast": { "absolutePath": "/Users/mfcalvanese/dev/eth/token-price-oracles/contracts/DataFeeds/TokenPriceDataFeed.sol", "exportedSymbols": { "TokenPriceDataFeed": [ 505 ] }, "id": 506, "nodeType": "SourceUnit", "nodes": [ { "id": 416, "literals": [ "solidity", ">=", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:25:1" }, { "absolutePath": "/Users/mfcalvanese/dev/eth/token-price-oracles/contracts/DataFeeds/TimeMedianDataFeed.sol", "file": "./TimeMedianDataFeed.sol", "id": 417, "nodeType": "ImportDirective", "scope": 506, "sourceUnit": 415, "src": "27:34:1", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": 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