arc_dx

{ "contractName": "ERC827Token", "abi": [ { "constant": false, "inputs": [ { "name": "_spender", "type": "address" }, { "name": "_value", "type": "uint256" } ], "name": "approve", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "totalSupply", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_from", "type": "address" }, { "name": "_to", "type": "address" }, { "name": "_value", "type": "uint256" } ], "name": "transferFrom", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_spender", "type": "address" }, { "name": "_subtractedValue", "type": "uint256" } ], "name": "decreaseApproval", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "_owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_to", "type": "address" }, { "name": "_value", "type": "uint256" } ], "name": "transfer", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_spender", "type": "address" }, { "name": "_addedValue", "type": "uint256" } ], "name": "increaseApproval", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "_owner", "type": "address" }, { "name": "_spender", "type": "address" } ], "name": "allowance", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "owner", "type": "address" }, { "indexed": true, "name": "spender", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "from", "type": "address" }, { "indexed": true, "name": "to", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "constant": false, "inputs": [ { "name": "_spender", "type": "address" }, { "name": "_value", "type": "uint256" }, { "name": "_data", "type": "bytes" } ], "name": "approveAndCall", "outputs": [ { "name": "", "type": "bool" } ], "payable": true, "stateMutability": "payable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_to", "type": "address" }, { "name": "_value", "type": "uint256" }, { "name": "_data", "type": "bytes" } ], "name": "transferAndCall", "outputs": [ { "name": "", "type": "bool" } ], "payable": true, "stateMutability": "payable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_from", "type": "address" }, { "name": "_to", "type": "address" }, { "name": "_value", "type": "uint256" }, { "name": "_data", "type": "bytes" } ], "name": "transferFromAndCall", "outputs": [ { "name": "", "type": "bool" } ], "payable": true, "stateMutability": "payable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_spender", "type": "address" }, { "name": "_addedValue", "type": "uint256" }, { "name": "_data", "type": "bytes" } ], "name": "increaseApprovalAndCall", "outputs": [ { "name": "", "type": "bool" } ], "payable": true, "stateMutability": "payable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_spender", "type": "address" }, { "name": "_subtractedValue", "type": "uint256" }, { "name": "_data", "type": "bytes" } ], "name": "decreaseApprovalAndCall", "outputs": [ { "name": "", "type": "bool" } ], "payable": true, "stateMutability": "payable", "type": "function" } ], "bytecode": 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"source": "/* solium-disable security/no-low-level-calls */\n\npragma solidity ^0.4.25;\n\nimport \"./ERC827.sol\";\nimport \"openzeppelin-solidity/contracts/token/ERC20/StandardToken.sol\";\n\n\n/**\n * @title ERC827, an extension of ERC20 token standard\n *\n * @dev Implementation the ERC827, following the ERC20 standard with extra\n * methods to transfer value and data and execute calls in transfers and\n * approvals. Uses OpenZeppelin StandardToken.\n */\ncontract ERC827Token is ERC827, StandardToken {\n\n /**\n * @dev Addition to ERC20 token methods. It allows to\n * approve the transfer of value and execute a call with the sent data.\n * Beware that changing an allowance with this method brings the risk that\n * someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race condition\n * is to first reduce the spender's allowance to 0 and set the desired value\n * afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n * @param _spender The address that will spend the funds.\n * @param _value The amount of tokens to be spent.\n * @param _data ABI-encoded contract call to call `_spender` address.\n * @return true if the call function was executed successfully\n */\n function approveAndCall(\n address _spender,\n uint256 _value,\n bytes _data\n )\n public\n payable\n returns (bool)\n {\n require(_spender != address(this));\n\n super.approve(_spender, _value);\n\n // solium-disable-next-line security/no-call-value\n require(_spender.call.value(msg.value)(_data));\n\n return true;\n }\n\n /**\n * @dev Addition to ERC20 token methods. Transfer tokens to a specified\n * address and execute a call with the sent data on the same transaction\n * @param _to address The address which you want to transfer to\n * @param _value uint256 the amout of tokens to be transfered\n * @param _data ABI-encoded contract call to call `_to` address.\n * @return true if the call function was executed successfully\n */\n function transferAndCall(\n address _to,\n uint256 _value,\n bytes _data\n )\n public\n payable\n returns (bool)\n {\n require(_to != address(this));\n\n super.transfer(_to, _value);\n\n // solium-disable-next-line security/no-call-value\n require(_to.call.value(msg.value)(_data));\n return true;\n }\n\n /**\n * @dev Addition to ERC20 token methods. Transfer tokens from one address to\n * another and make a contract call on the same transaction\n * @param _from The address which you want to send tokens from\n * @param _to The address which you want to transfer to\n * @param _value The amout of tokens to be transferred\n * @param _data ABI-encoded contract call to call `_to` address.\n * @return true if the call function was executed successfully\n */\n function transferFromAndCall(\n address _from,\n address _to,\n uint256 _value,\n bytes _data\n )\n public payable returns (bool)\n {\n require(_to != address(this));\n\n super.transferFrom(_from, _to, _value);\n\n // solium-disable-next-line security/no-call-value\n require(_to.call.value(msg.value)(_data));\n return true;\n }\n\n /**\n * @dev Addition to StandardToken methods. Increase the amount of tokens that\n * an owner allowed to a spender and execute a call with the sent data.\n * approve should be called when allowed[_spender] == 0. To increment\n * allowed value is better to use this function to avoid 2 calls (and wait until\n * the first transaction is mined)\n * From MonolithDAO Token.sol\n * @param _spender The address which will spend the funds.\n * @param _addedValue The amount of tokens to increase the allowance by.\n * @param _data ABI-encoded contract call to call `_spender` address.\n */\n function increaseApprovalAndCall(\n address _spender,\n uint _addedValue,\n bytes _data\n )\n public\n payable\n returns (bool)\n {\n require(_spender != address(this));\n\n super.increaseApproval(_spender, _addedValue);\n\n // solium-disable-next-line security/no-call-value\n require(_spender.call.value(msg.value)(_data));\n\n return true;\n }\n\n /**\n * @dev Addition to StandardToken methods. Decrease the amount of tokens that\n * an owner allowed to a spender and execute a call with the sent data.\n * approve should be called when allowed[_spender] == 0. To decrement\n * allowed value is better to use this function to avoid 2 calls (and wait until\n * the first transaction is mined)\n * From MonolithDAO Token.sol\n * @param _spender The address which will spend the funds.\n * @param _subtractedValue The amount of tokens to decrease the allowance by.\n * @param _data ABI-encoded contract call to call `_spender` address.\n */\n function decreaseApprovalAndCall(\n address _spender,\n uint _subtractedValue,\n bytes _data\n )\n public\n payable\n returns (bool)\n {\n require(_spender != address(this));\n\n super.decreaseApproval(_spender, _subtractedValue);\n\n // solium-disable-next-line security/no-call-value\n require(_spender.call.value(msg.value)(_data));\n\n return true;\n }\n\n}\n", "sourcePath": "/Users/oren/daostack/daostack2/daostack/contracts/token/ERC827/ERC827Token.sol", "ast": { "absolutePath": "/Users/oren/daostack/daostack2/daostack/contracts/token/ERC827/ERC827Token.sol", "exportedSymbols": { "ERC827Token": [ 7074 ] }, "id": 7075, "nodeType": "SourceUnit", "nodes": [ { "id": 6864, "literals": [ "solidity", "^", "0.4", ".25" ], "nodeType": "PragmaDirective", "src": "50:24:25" }, { "absolutePath": "/Users/oren/daostack/daostack2/daostack/contracts/token/ERC827/ERC827.sol", "file": "./ERC827.sol", "id": 6865, "nodeType": "ImportDirective", "scope": 7075, "sourceUnit": 6863, "src": "76:22:25", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC20/StandardToken.sol", "file": "openzeppelin-solidity/contracts/token/ERC20/StandardToken.sol", "id": 6866, "nodeType": "ImportDirective", "scope": 7075, "sourceUnit": 21535, "src": "99:71:25", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 6867, "name": "ERC827", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6862, "src": "458:6:25", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC827_$6862", "typeString": "contract ERC827" } }, "id": 6868, "nodeType": "InheritanceSpecifier", "src": "458:6:25" }, { "arguments": null, "baseName": { "contractScope": null, "id": 6869, "name": "StandardToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 21534, "src": "466:13:25", "typeDescriptions": { "typeIdentifier": "t_contract$_StandardToken_$21534", "typeString": "contract StandardToken" } }, "id": 6870, "nodeType": "InheritanceSpecifier", "src": "466:13:25" } ], "contractDependencies": [ 6862, 20973, 21087, 21119, 21534 ], "contractKind": "contract", "documentation": "@title ERC827, an extension of ERC20 token standard\n * @dev Implementation the ERC827, following the ERC20 standard with extra\nmethods to transfer value and data and execute calls in transfers and\napprovals. Uses OpenZeppelin StandardToken.", "fullyImplemented": true, "id": 7074, "linearizedBaseContracts": [ 7074, 21534, 20973, 6862, 21087, 21119 ], "name": "ERC827Token", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 6909, "nodeType": "Block", "src": "1422:231:25", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 6886, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 6882, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6872, "src": "1440:8:25", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6884, "name": "this", "nodeType": "Identifier", 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