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"source": "pragma solidity ^0.4.18;\n\n/**\n * @title ERC20 interface\n * @dev see https://github.com/ethereum/EIPs/issues/20\n */\ninterface IERC20 {\n function balanceOf(address _owner) public view returns (uint256);\n function allowance(address _owner, address _spender) public view returns (uint256);\n function transfer(address _to, uint256 _value) public returns (bool);\n function transferFrom(address _from, address _to, uint256 _value) public returns (bool);\n function approve(address _spender, uint256 _value) public returns (bool);\n event Transfer(address indexed from, address indexed to, uint256 value);\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n\n/*\nCopyright (c) 2016 Smart Contract Solutions, Inc.\n\nPermission is hereby granted, free of charge, to any person obtaining\na copy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to\npermit persons to whom the Software is furnished to do so, subject to\nthe following conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\nIN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\nCLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\nTORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\nSOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n*/\n\n/**\n * @title SafeMath\n * @dev Math operations with safety checks that throw on error\n */\nlibrary SafeMath {\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n uint256 c = a * b;\n assert(c / a == b);\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // assert(b > 0); // Solidity automatically throws when dividing by 0\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n assert(b <= a);\n return a - b;\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n assert(c >= a);\n return c;\n }\n}\n\n/**\n * @title Standard ERC20 token\n *\n * @dev Implementation of the basic standard token.\n * @dev https://github.com/ethereum/EIPs/issues/20\n */\ncontract PolyToken is IERC20 {\n using SafeMath for uint256;\n\n // Poly Token parameters\n string public name = 'Polymath';\n string public symbol = 'POLY';\n uint8 public constant decimals = 18;\n uint256 public constant decimalFactor = 10 ** uint256(decimals);\n uint256 public constant totalSupply = 1000000000 * decimalFactor;\n mapping (address => uint256) balances;\n mapping (address => mapping (address => uint256)) internal allowed;\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Constructor for Poly creation\n * @dev Assigns the totalSupply to the PolyDistribution contract\n */\n function PolyToken(address _polyDistributionContractAddress) public {\n require(_polyDistributionContractAddress != address(0));\n balances[_polyDistributionContractAddress] = totalSupply;\n Transfer(address(0), _polyDistributionContractAddress, totalSupply);\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param _owner The address to query the the balance of.\n * @return An uint256 representing the amount owned by the passed address.\n */\n function balanceOf(address _owner) public view returns (uint256 balance) {\n return balances[_owner];\n }\n\n /**\n * @dev Function to check the amount of tokens that an owner allowed to a spender.\n * @param _owner address The address which owns the funds.\n * @param _spender address The address which will spend the funds.\n * @return A uint256 specifying the amount of tokens still available for the spender.\n */\n function allowance(address _owner, address _spender) public view returns (uint256) {\n return allowed[_owner][_spender];\n }\n\n /**\n * @dev transfer token for a specified address\n * @param _to The address to transfer to.\n * @param _value The amount to be transferred.\n */\n function transfer(address _to, uint256 _value) public returns (bool) {\n require(_to != address(0));\n require(_value <= balances[msg.sender]);\n\n // SafeMath.sub will throw if there is not enough balance.\n balances[msg.sender] = balances[msg.sender].sub(_value);\n balances[_to] = balances[_to].add(_value);\n Transfer(msg.sender, _to, _value);\n return true;\n }\n\n /**\n * @dev Transfer tokens from one address to another\n * @param _from address The address which you want to send tokens from\n * @param _to address The address which you want to transfer to\n * @param _value uint256 the amount of tokens to be transferred\n */\n function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {\n require(_to != address(0));\n require(_value <= balances[_from]);\n require(_value <= allowed[_from][msg.sender]);\n\n balances[_from] = balances[_from].sub(_value);\n balances[_to] = balances[_to].add(_value);\n allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);\n Transfer(_from, _to, _value);\n return true;\n }\n\n /**\n * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.\n *\n * Beware that changing an allowance with this method brings the risk that someone may use both the old\n * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this\n * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n * @param _spender The address which will spend the funds.\n * @param _value The amount of tokens to be spent.\n */\n function approve(address _spender, uint256 _value) public returns (bool) {\n allowed[msg.sender][_spender] = _value;\n Approval(msg.sender, _spender, _value);\n return true;\n }\n\n /**\n * @dev Increase the amount of tokens that an owner allowed to a spender.\n *\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 */\n function increaseApproval(address _spender, uint _addedValue) public returns (bool) {\n allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);\n Approval(msg.sender, _spender, allowed[msg.sender][_spender]);\n return true;\n }\n\n /**\n * @dev Decrease the amount of tokens that an owner allowed to a spender.\n *\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 */\n function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {\n uint oldValue = allowed[msg.sender][_spender];\n if (_subtractedValue > oldValue) {\n allowed[msg.sender][_spender] = 0;\n } else {\n allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);\n }\n Approval(msg.sender, _spender, allowed[msg.sender][_spender]);\n return true;\n }\n\n}", "sourcePath": "/Users/satyamagrawal/Repositories/testing-package/polymath-core/contracts/helpers/PolyToken.sol", "ast": { "absolutePath": "/Users/satyamagrawal/Repositories/testing-package/polymath-core/contracts/helpers/PolyToken.sol", "exportedSymbols": { "IERC20": [ 8983 ], "PolyToken": [ 9463 ], 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"typeString": "address" } }, { "argumentTypes": null, "id": 9154, "name": "_polyDistributionContractAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9133, "src": "3652:32:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9155, "name": "totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9105, "src": "3686:11:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9150, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [ 9123 ], "referencedDeclaration": 9123, "src": "3631:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9156, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3631:67:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9157, "nodeType": "ExpressionStatement", "src": "3631:67:10" } ] }, "documentation": "@dev Constructor for Poly creation\n@dev Assigns the totalSupply to the PolyDistribution contract", "id": 9159, "implemented": true, "isConstructor": true, "isDeclaredConst": false, "modifiers": [], "name": "PolyToken", "nodeType": "FunctionDefinition", "parameters": { "id": 9134, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9133, "name": "_polyDistributionContractAddress", "nodeType": "VariableDeclaration", "scope": 9159, "src": "3453:40:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9132, "name": "address", "nodeType": "ElementaryTypeName", "src": "3453:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "3452:42:10" }, "payable": false, "returnParameters": { "id": 9135, "nodeType": "ParameterList", "parameters": [], "src": "3502:0:10" }, "scope": 9463, "src": "3434:269:10", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 9170, "nodeType": "Block", "src": "3978:34:10", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9166, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "3991:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9168, "indexExpression": { "argumentTypes": null, "id": 9167, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9161, "src": "4000:6:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3991:16:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 9165, "id": 9169, "nodeType": "Return", "src": "3984:23:10" } ] }, "documentation": "@dev Gets the balance of the specified address.\n@param _owner The address to query the the balance of.\n@return An uint256 representing the amount owned by the passed address.", "id": 9171, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "balanceOf", "nodeType": "FunctionDefinition", "parameters": { "id": 9162, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9161, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 9171, "src": "3924:14:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9160, "name": "address", "nodeType": "ElementaryTypeName", "src": "3924:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "3923:16:10" }, "payable": false, "returnParameters": { "id": 9165, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9164, "name": "balance", "nodeType": "VariableDeclaration", "scope": 9171, "src": "3961:15:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9163, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3961:7:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3960:17:10" }, "scope": 9463, "src": "3905:107:10", "stateMutability": "view", "superFunction": 8928, "visibility": "public" }, { "body": { "id": 9186, "nodeType": "Block", "src": "4414:43:10", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9180, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "4427:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9182, "indexExpression": { "argumentTypes": null, "id": 9181, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9173, "src": "4435:6:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4427:15:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9184, "indexExpression": { "argumentTypes": null, "id": 9183, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9175, "src": "4443:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4427:25:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 9179, "id": 9185, "nodeType": "Return", "src": "4420:32:10" } ] }, "documentation": "@dev Function to check the amount of tokens that an owner allowed to a spender.\n@param _owner address The address which owns the funds.\n@param _spender address The address which will spend the funds.\n@return A uint256 specifying the amount of tokens still available for the spender.", "id": 9187, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "allowance", "nodeType": "FunctionDefinition", "parameters": { "id": 9176, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9173, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 9187, "src": "4350:14:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9172, "name": "address", "nodeType": "ElementaryTypeName", "src": "4350:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9175, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 9187, "src": "4366:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9174, "name": "address", "nodeType": "ElementaryTypeName", "src": "4366:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "4349:34:10" }, "payable": false, "returnParameters": { "id": 9179, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9178, "name": "", "nodeType": "VariableDeclaration", "scope": 9187, "src": "4405:7:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9177, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4405:7:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4404:9:10" }, "scope": 9463, "src": "4331:126:10", "stateMutability": "view", "superFunction": 8937, "visibility": "public" }, { "body": { "id": 9246, "nodeType": "Block", "src": "4680:310:10", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 9201, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 9197, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9189, "src": "4694:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 9199, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4709:1:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 9198, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4701:7:10", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 9200, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4701:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "4694:17:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 9196, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 23134, 23135 ], "referencedDeclaration": 23134, "src": "4686:7:10", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 9202, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4686:26:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9203, "nodeType": "ExpressionStatement", "src": "4686:26:10" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 9210, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 9205, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9191, "src": "4726:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<=", "rightExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9206, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4736:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9209, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9207, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "4745:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9208, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4745:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4736:20:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4726:30:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 9204, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 23134, 23135 ], "referencedDeclaration": 23134, "src": "4718:7:10", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 9211, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4718:39:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9212, "nodeType": "ExpressionStatement", "src": "4718:39:10" }, { "expression": { "argumentTypes": null, "id": 9224, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9213, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4827:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9216, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9214, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "4836:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9215, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4836:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4827:20:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9222, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9191, "src": "4875:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9217, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4850:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9220, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9218, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "4859:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9219, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4859:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4850:20:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9221, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 9054, "src": "4850:24:10", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 9223, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4850:32:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4827:55:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9225, "nodeType": "ExpressionStatement", "src": "4827:55:10" }, { "expression": { "argumentTypes": null, "id": 9235, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9226, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4888:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9228, "indexExpression": { "argumentTypes": null, "id": 9227, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9189, "src": "4897:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4888:13:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9233, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9191, "src": "4922:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9229, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4904:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9231, "indexExpression": { "argumentTypes": null, "id": 9230, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9189, "src": "4913:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4904:13:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9232, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 9078, "src": "4904:17:10", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 9234, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4904:25:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4888:41:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9236, 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"overloadedDeclarations": [], "referencedDeclaration": 9191, "src": "4961:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9237, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [ 9123 ], "referencedDeclaration": 9123, "src": "4935:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9242, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4935:33:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9243, "nodeType": 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(address,address,uint256)" } }, "id": 9328, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5654:28:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9329, "nodeType": "ExpressionStatement", "src": "5654:28:10" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 9330, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "5695:4:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 9257, "id": 9331, "nodeType": "Return", "src": "5688:11:10" } ] }, "documentation": "@dev Transfer tokens from one address to another\n@param _from address The address which you want to send tokens from\n@param _to address The address which you want to transfer to\n@param _value uint256 the amount of tokens to be transferred", "id": 9333, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 9254, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9249, "name": "_from", "nodeType": "VariableDeclaration", "scope": 9333, "src": "5287:13:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9248, "name": "address", "nodeType": "ElementaryTypeName", "src": "5287:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9251, "name": "_to", "nodeType": "VariableDeclaration", "scope": 9333, "src": "5302:11:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9250, "name": "address", "nodeType": "ElementaryTypeName", "src": "5302:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9253, "name": "_value", "nodeType": "VariableDeclaration", "scope": 9333, "src": "5315:14:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9252, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5315:7:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5286:44:10" }, "payable": false, "returnParameters": { "id": 9257, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9256, "name": "", "nodeType": "VariableDeclaration", "scope": 9333, "src": "5347:4:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 9255, "name": "bool", "nodeType": "ElementaryTypeName", "src": "5347:4:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "5346:6:10" }, "scope": 9463, "src": "5265:439:10", "stateMutability": "nonpayable", "superFunction": 8957, "visibility": "public" }, { "body": { "id": 9360, "nodeType": "Block", "src": "6400:110:10", "statements": [ { "expression": { "argumentTypes": null, "id": 9349, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9342, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "6406:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9346, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9343, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "6414:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9344, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6414:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6406:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9347, "indexExpression": { "argumentTypes": null, "id": 9345, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9335, "src": "6426:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6406:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 9348, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9337, "src": "6438:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6406:38:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9350, "nodeType": "ExpressionStatement", "src": "6406:38:10" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9352, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "6459:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9353, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6459:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9354, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9335, "src": "6471:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9355, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9337, "src": "6481:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9351, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [ 9131 ], "referencedDeclaration": 9131, "src": "6450:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9356, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6450:38:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9357, "nodeType": "ExpressionStatement", "src": "6450:38:10" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 9358, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "6501:4:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 9341, "id": 9359, "nodeType": "Return", "src": "6494:11:10" } ] }, "documentation": "@dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.\n * Beware that changing an allowance with this method brings the risk that someone may use both the old\nand the new allowance by unfortunate transaction ordering. One possible solution to mitigate this\nrace condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:\nhttps://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n@param _spender The address which will spend the funds.\n@param _value The amount of tokens to be spent.", "id": 9361, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 9338, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9335, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 9361, "src": "6344:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9334, "name": "address", "nodeType": "ElementaryTypeName", "src": "6344:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9337, "name": "_value", "nodeType": "VariableDeclaration", "scope": 9361, "src": "6362:14:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9336, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6362:7:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6343:34:10" }, "payable": false, "returnParameters": { "id": 9341, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9340, "name": "", "nodeType": "VariableDeclaration", "scope": 9361, "src": "6394:4:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 9339, "name": "bool", "nodeType": "ElementaryTypeName", "src": "6394:4:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "6393:6:10" }, "scope": 9463, "src": "6327:183:10", "stateMutability": "nonpayable", "superFunction": 8966, "visibility": "public" }, { "body": { "id": 9401, "nodeType": "Block", "src": "7051:173:10", "statements": [ { "expression": { "argumentTypes": null, "id": 9385, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9370, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7057:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9374, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9371, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7065:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9372, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7065:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7057:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9375, "indexExpression": { "argumentTypes": null, "id": 9373, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9363, "src": "7077:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "7057:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9383, "name": "_addedValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9365, "src": "7123:11:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9376, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7089:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9379, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9377, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7097:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9378, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7097:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7089:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9381, "indexExpression": { "argumentTypes": null, "id": 9380, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9363, "src": "7109:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7089:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9382, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 9078, "src": "7089:33:10", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 9384, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7089:46:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7057:78:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9386, "nodeType": "ExpressionStatement", "src": "7057:78:10" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9388, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7150:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9389, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7150:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9390, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9363, "src": "7162:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9391, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7172:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9394, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9392, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7180:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9393, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7180:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7172:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9396, "indexExpression": { "argumentTypes": null, "id": 9395, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9363, "src": "7192:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7172:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9387, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [ 9131 ], "referencedDeclaration": 9131, "src": "7141:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9397, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7141:61:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9398, "nodeType": "ExpressionStatement", "src": "7141:61:10" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 9399, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "7215:4:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 9369, "id": 9400, "nodeType": "Return", "src": "7208:11:10" } ] }, "documentation": "@dev Increase the amount of tokens that an owner allowed to a spender.\n * approve should be called when allowed[_spender] == 0. To increment\nallowed value is better to use this function to avoid 2 calls (and wait until\nthe first transaction is mined)\nFrom 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.", "id": 9402, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "increaseApproval", "nodeType": "FunctionDefinition", "parameters": { "id": 9366, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9363, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 9402, "src": "6993:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9362, "name": "address", "nodeType": "ElementaryTypeName", "src": "6993:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, 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"typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "7044:6:10" }, "scope": 9463, "src": "6967:257:10", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 9461, "nodeType": "Block", "src": "7775:309:10", "statements": [ { "assignments": [ 9412 ], "declarations": [ { "constant": false, "id": 9412, "name": "oldValue", "nodeType": "VariableDeclaration", "scope": 9462, "src": "7781:13:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9411, "name": "uint", "nodeType": "ElementaryTypeName", "src": "7781:4:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 9419, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9413, "name": "allowed", 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To decrement\nallowed value is better to use this function to avoid 2 calls (and wait until\nthe first transaction is mined)\nFrom 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.", "id": 9462, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "decreaseApproval", "nodeType": "FunctionDefinition", "parameters": { "id": 9407, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9404, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 9462, "src": "7712:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9403, "name": "address", "nodeType": "ElementaryTypeName", "src": "7712:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": 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"isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9144, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "3569:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9146, "indexExpression": { "argumentTypes": null, "id": 9145, "name": "_polyDistributionContractAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9133, "src": "3578:32:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3569:42:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 9147, "name": "totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9105, "src": "3614:11:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3569:56:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9149, "nodeType": "ExpressionStatement", "src": "3569:56:10" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 9152, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3648:1:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 9151, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3640:7:10", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 9153, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3640:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9154, "name": "_polyDistributionContractAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9133, "src": "3652:32:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9155, "name": "totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9105, "src": "3686:11:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9150, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [ 9123 ], "referencedDeclaration": 9123, "src": "3631:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9156, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3631:67:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9157, "nodeType": "ExpressionStatement", "src": "3631:67:10" } ] }, "documentation": "@dev Constructor for Poly creation\n@dev Assigns the totalSupply to the PolyDistribution contract", "id": 9159, "implemented": true, "isConstructor": true, "isDeclaredConst": false, "modifiers": [], "name": "PolyToken", "nodeType": "FunctionDefinition", "parameters": { "id": 9134, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9133, "name": "_polyDistributionContractAddress", "nodeType": "VariableDeclaration", "scope": 9159, "src": "3453:40:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9132, "name": "address", "nodeType": "ElementaryTypeName", "src": "3453:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "3452:42:10" }, "payable": false, "returnParameters": { "id": 9135, "nodeType": "ParameterList", "parameters": [], "src": "3502:0:10" }, "scope": 9463, "src": "3434:269:10", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 9170, "nodeType": "Block", "src": "3978:34:10", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9166, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "3991:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9168, "indexExpression": { "argumentTypes": null, "id": 9167, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9161, "src": "4000:6:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3991:16:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 9165, "id": 9169, "nodeType": "Return", "src": "3984:23:10" } ] }, "documentation": "@dev Gets the balance of the specified address.\n@param _owner The address to query the the balance of.\n@return An uint256 representing the amount owned by the passed address.", "id": 9171, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "balanceOf", "nodeType": "FunctionDefinition", "parameters": { "id": 9162, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9161, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 9171, "src": "3924:14:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9160, "name": "address", "nodeType": "ElementaryTypeName", "src": "3924:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "3923:16:10" }, "payable": false, "returnParameters": { "id": 9165, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9164, "name": "balance", "nodeType": "VariableDeclaration", "scope": 9171, "src": "3961:15:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9163, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3961:7:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3960:17:10" }, "scope": 9463, "src": "3905:107:10", "stateMutability": "view", "superFunction": 8928, "visibility": "public" }, { "body": { "id": 9186, "nodeType": "Block", "src": "4414:43:10", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9180, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "4427:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9182, "indexExpression": { "argumentTypes": null, "id": 9181, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9173, "src": "4435:6:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4427:15:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9184, "indexExpression": { "argumentTypes": null, "id": 9183, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9175, "src": "4443:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4427:25:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 9179, "id": 9185, "nodeType": "Return", "src": "4420:32:10" } ] }, "documentation": "@dev Function to check the amount of tokens that an owner allowed to a spender.\n@param _owner address The address which owns the funds.\n@param _spender address The address which will spend the funds.\n@return A uint256 specifying the amount of tokens still available for the spender.", "id": 9187, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "allowance", "nodeType": "FunctionDefinition", "parameters": { "id": 9176, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9173, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 9187, "src": "4350:14:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9172, "name": "address", "nodeType": "ElementaryTypeName", "src": "4350:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9175, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 9187, "src": "4366:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9174, "name": "address", "nodeType": "ElementaryTypeName", "src": "4366:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "4349:34:10" }, "payable": false, "returnParameters": { "id": 9179, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9178, "name": "", "nodeType": "VariableDeclaration", "scope": 9187, "src": "4405:7:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9177, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4405:7:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4404:9:10" }, "scope": 9463, "src": "4331:126:10", "stateMutability": "view", "superFunction": 8937, "visibility": "public" }, { "body": { "id": 9246, "nodeType": "Block", "src": "4680:310:10", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 9201, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 9197, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9189, "src": "4694:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 9199, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4709:1:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 9198, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4701:7:10", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 9200, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4701:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "4694:17:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 9196, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 23134, 23135 ], "referencedDeclaration": 23134, "src": "4686:7:10", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 9202, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4686:26:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9203, "nodeType": "ExpressionStatement", "src": "4686:26:10" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 9210, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 9205, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9191, "src": "4726:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<=", "rightExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9206, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4736:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9209, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9207, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "4745:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9208, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4745:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4736:20:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4726:30:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 9204, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 23134, 23135 ], "referencedDeclaration": 23134, "src": "4718:7:10", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 9211, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4718:39:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9212, "nodeType": "ExpressionStatement", "src": "4718:39:10" }, { "expression": { "argumentTypes": null, "id": 9224, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9213, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4827:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9216, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9214, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "4836:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9215, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4836:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4827:20:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9222, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9191, "src": "4875:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9217, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4850:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9220, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9218, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "4859:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9219, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4859:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4850:20:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9221, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 9054, "src": "4850:24:10", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 9223, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4850:32:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4827:55:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9225, "nodeType": "ExpressionStatement", "src": "4827:55:10" }, { "expression": { "argumentTypes": null, "id": 9235, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9226, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4888:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9228, "indexExpression": { "argumentTypes": null, "id": 9227, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9189, "src": "4897:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4888:13:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9233, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9191, "src": "4922:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9229, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "4904:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9231, "indexExpression": { "argumentTypes": null, "id": 9230, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9189, "src": "4913:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4904:13:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9232, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 9078, "src": "4904:17:10", "typeDescriptions": { "typeIdentifier": 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"src": "4974:11:10" } ] }, "documentation": "@dev transfer token for a specified address\n@param _to The address to transfer to.\n@param _value The amount to be transferred.", "id": 9247, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "transfer", "nodeType": "FunctionDefinition", "parameters": { "id": 9192, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9189, "name": "_to", "nodeType": "VariableDeclaration", "scope": 9247, "src": "4629:11:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9188, "name": "address", "nodeType": "ElementaryTypeName", "src": "4629:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9191, "name": "_value", "nodeType": "VariableDeclaration", "scope": 9247, "src": 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"4611:379:10", "stateMutability": "nonpayable", "superFunction": 8946, "visibility": "public" }, { "body": { "id": 9332, "nodeType": "Block", "src": "5353:351:10", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 9263, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 9259, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9251, "src": "5367:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 9261, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5382:1:10", 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"t_uint256", "typeString": "uint256" } }, "id": 9295, "nodeType": "ExpressionStatement", "src": "5483:45:10" }, { "expression": { "argumentTypes": null, "id": 9305, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9296, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9109, "src": "5534:8:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9298, "indexExpression": { "argumentTypes": null, "id": 9297, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9251, "src": "5543:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5534:13:10", 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uint256))" } }, "id": 9315, "indexExpression": { "argumentTypes": null, "id": 9314, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9249, "src": "5618:5:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5610:14:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9318, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9316, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "5625:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9317, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5625:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5610:26:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9319, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 9054, "src": "5610:30:10", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 9321, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5610:38:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5581:67:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9323, "nodeType": "ExpressionStatement", "src": "5581:67:10" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9325, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9249, "src": "5663:5:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9326, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9251, "src": "5670:3:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9327, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9253, "src": "5675:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9324, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [ 9123 ], "referencedDeclaration": 9123, "src": "5654:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9328, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5654:28:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9329, "nodeType": "ExpressionStatement", "src": "5654:28:10" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 9330, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "5695:4:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 9257, "id": 9331, "nodeType": "Return", "src": "5688:11:10" } ] }, "documentation": "@dev Transfer tokens from one address to another\n@param _from address The address which you want to send tokens from\n@param _to address The address which you want to transfer to\n@param _value uint256 the amount of tokens to be transferred", "id": 9333, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 9254, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9249, "name": "_from", "nodeType": "VariableDeclaration", "scope": 9333, "src": "5287:13:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9248, "name": "address", "nodeType": "ElementaryTypeName", "src": "5287:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9251, "name": "_to", "nodeType": "VariableDeclaration", "scope": 9333, "src": "5302:11:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9250, "name": "address", "nodeType": "ElementaryTypeName", "src": "5302:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9253, "name": "_value", "nodeType": "VariableDeclaration", "scope": 9333, "src": "5315:14:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9252, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5315:7:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5286:44:10" }, "payable": false, "returnParameters": { "id": 9257, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9256, "name": "", "nodeType": "VariableDeclaration", "scope": 9333, "src": "5347:4:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 9255, "name": "bool", "nodeType": "ElementaryTypeName", "src": "5347:4:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "5346:6:10" }, "scope": 9463, "src": "5265:439:10", "stateMutability": "nonpayable", "superFunction": 8957, "visibility": "public" }, { "body": { "id": 9360, "nodeType": "Block", "src": "6400:110:10", "statements": [ { "expression": { "argumentTypes": null, "id": 9349, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9342, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "6406:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9346, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9343, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "6414:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9344, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6414:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6406:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9347, "indexExpression": { "argumentTypes": null, "id": 9345, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9335, "src": "6426:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6406:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 9348, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9337, "src": "6438:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6406:38:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9350, "nodeType": "ExpressionStatement", "src": "6406:38:10" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9352, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "6459:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9353, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6459:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9354, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9335, "src": "6471:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9355, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9337, "src": "6481:6:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9351, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [ 9131 ], "referencedDeclaration": 9131, "src": "6450:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9356, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6450:38:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9357, "nodeType": "ExpressionStatement", "src": "6450:38:10" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 9358, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "6501:4:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 9341, "id": 9359, "nodeType": "Return", "src": "6494:11:10" } ] }, "documentation": "@dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.\n * Beware that changing an allowance with this method brings the risk that someone may use both the old\nand the new allowance by unfortunate transaction ordering. One possible solution to mitigate this\nrace condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:\nhttps://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n@param _spender The address which will spend the funds.\n@param _value The amount of tokens to be spent.", "id": 9361, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 9338, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9335, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 9361, "src": "6344:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9334, "name": "address", "nodeType": "ElementaryTypeName", "src": "6344:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9337, "name": "_value", "nodeType": "VariableDeclaration", "scope": 9361, "src": "6362:14:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9336, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6362:7:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6343:34:10" }, "payable": false, "returnParameters": { "id": 9341, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9340, "name": "", "nodeType": "VariableDeclaration", "scope": 9361, "src": "6394:4:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 9339, "name": "bool", "nodeType": "ElementaryTypeName", "src": "6394:4:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "6393:6:10" }, "scope": 9463, "src": "6327:183:10", "stateMutability": "nonpayable", "superFunction": 8966, "visibility": "public" }, { "body": { "id": 9401, "nodeType": "Block", "src": "7051:173:10", "statements": [ { "expression": { "argumentTypes": null, "id": 9385, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9370, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7057:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9374, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9371, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7065:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9372, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7065:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7057:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9375, "indexExpression": { "argumentTypes": null, "id": 9373, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9363, "src": "7077:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "7057:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9383, "name": "_addedValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9365, "src": "7123:11:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9376, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7089:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9379, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9377, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7097:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9378, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7097:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7089:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9381, "indexExpression": { "argumentTypes": null, "id": 9380, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9363, "src": "7109:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7089:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9382, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 9078, "src": "7089:33:10", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 9384, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7089:46:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7057:78:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9386, "nodeType": "ExpressionStatement", "src": "7057:78:10" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9388, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7150:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9389, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7150:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9390, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9363, "src": "7162:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9391, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7172:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9394, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9392, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7180:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9393, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7180:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7172:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9396, "indexExpression": { "argumentTypes": null, "id": 9395, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9363, "src": "7192:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7172:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9387, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [ 9131 ], "referencedDeclaration": 9131, "src": "7141:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9397, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7141:61:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9398, "nodeType": "ExpressionStatement", "src": "7141:61:10" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 9399, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "7215:4:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 9369, "id": 9400, "nodeType": "Return", "src": "7208:11:10" } ] }, "documentation": "@dev Increase the amount of tokens that an owner allowed to a spender.\n * approve should be called when allowed[_spender] == 0. To increment\nallowed value is better to use this function to avoid 2 calls (and wait until\nthe first transaction is mined)\nFrom 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.", "id": 9402, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "increaseApproval", "nodeType": "FunctionDefinition", "parameters": { "id": 9366, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9363, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 9402, "src": "6993:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9362, "name": "address", "nodeType": "ElementaryTypeName", "src": "6993:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9365, "name": "_addedValue", "nodeType": "VariableDeclaration", "scope": 9402, "src": "7011:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9364, "name": "uint", "nodeType": "ElementaryTypeName", "src": "7011:4:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6992:36:10" }, "payable": false, "returnParameters": { "id": 9369, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9368, "name": "", "nodeType": "VariableDeclaration", "scope": 9402, "src": "7045:4:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 9367, "name": "bool", "nodeType": "ElementaryTypeName", "src": "7045:4:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "7044:6:10" }, "scope": 9463, "src": "6967:257:10", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 9461, "nodeType": "Block", "src": "7775:309:10", "statements": [ { "assignments": [ 9412 ], "declarations": [ { "constant": false, "id": 9412, "name": "oldValue", "nodeType": "VariableDeclaration", "scope": 9462, "src": "7781:13:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9411, "name": "uint", "nodeType": "ElementaryTypeName", "src": "7781:4:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 9419, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9413, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7797:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9416, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9414, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7805:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9415, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7805:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7797:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9418, "indexExpression": { "argumentTypes": null, "id": 9417, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9404, "src": "7817:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7797:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "7781:45:10" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 9422, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 9420, "name": "_subtractedValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9406, "src": "7836:16:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "id": 9421, "name": "oldValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9412, "src": "7855:8:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7836:27:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 9445, "nodeType": "Block", "src": "7919:77:10", "statements": [ { "expression": { "argumentTypes": null, "id": 9443, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9433, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7927:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9437, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9434, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7935:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9435, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7935:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7927:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9438, "indexExpression": { "argumentTypes": null, "id": 9436, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9404, "src": "7947:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "7927:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9441, "name": "_subtractedValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9406, "src": "7972:16:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 9439, "name": "oldValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9412, "src": "7959:8:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9440, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 9054, "src": "7959:12:10", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 9442, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7959:30:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7927:62:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9444, "nodeType": "ExpressionStatement", "src": "7927:62:10" } ] }, "id": 9446, "nodeType": "IfStatement", "src": "7832:164:10", "trueBody": { "id": 9432, "nodeType": "Block", "src": "7865:48:10", "statements": [ { "expression": { "argumentTypes": null, "id": 9430, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9423, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "7873:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9427, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9424, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "7881:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9425, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7881:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7873:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9428, "indexExpression": { "argumentTypes": null, "id": 9426, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9404, "src": "7893:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "7873:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 9429, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7905:1:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "7873:33:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 9431, "nodeType": "ExpressionStatement", "src": "7873:33:10" } ] } }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9448, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "8010:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9449, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8010:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9450, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9404, "src": "8022:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 9451, "name": "allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9115, "src": "8032:7:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 9454, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9452, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23131, "src": "8040:3:10", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9453, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8040:10:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "8032:19:10", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 9456, "indexExpression": { "argumentTypes": null, "id": 9455, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9404, "src": "8052:8:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "8032:29:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9447, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [ 9131 ], "referencedDeclaration": 9131, "src": "8001:8:10", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 9457, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8001:61:10", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9458, "nodeType": "ExpressionStatement", "src": "8001:61:10" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 9459, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "8075:4:10", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 9410, "id": 9460, "nodeType": "Return", "src": "8068:11:10" } ] }, "documentation": "@dev Decrease the amount of tokens that an owner allowed to a spender.\n * approve should be called when allowed[_spender] == 0. To decrement\nallowed value is better to use this function to avoid 2 calls (and wait until\nthe first transaction is mined)\nFrom 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.", "id": 9462, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "decreaseApproval", "nodeType": "FunctionDefinition", "parameters": { "id": 9407, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9404, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 9462, "src": "7712:16:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9403, "name": "address", "nodeType": "ElementaryTypeName", "src": "7712:7:10", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9406, "name": "_subtractedValue", "nodeType": "VariableDeclaration", "scope": 9462, "src": "7730:21:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9405, "name": "uint", "nodeType": "ElementaryTypeName", "src": "7730:4:10", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "7711:41:10" }, "payable": false, "returnParameters": { "id": 9410, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9409, "name": "", "nodeType": "VariableDeclaration", "scope": 9462, "src": "7769:4:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 9408, "name": "bool", "nodeType": "ElementaryTypeName", "src": "7769:4:10", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "7768:6:10" }, "scope": 9463, "src": "7686:398:10", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" } ], "scope": 9464, "src": "2716:5371:10" } ], "src": "0:8087:10" }, "compiler": { "name": "solc", "version": "0.4.24+commit.e67f0147.Emscripten.clang" }, "networks": {}, "schemaVersion": "2.0.1", "updatedAt": "2018-08-21T09:48:12.283Z" }