{ "contractName": "ERC20", "abi": [ { "anonymous": false, "inputs": [ { "indexed": true, "name": "from", "type": "address" }, { "indexed": true, "name": "to", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "owner", "type": "address" }, { "indexed": true, "name": "spender", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "constant": true, "inputs": [], "name": "totalSupply", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "owner", "type": "address" }, { "name": "spender", "type": "address" } ], "name": "allowance", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "to", "type": "address" }, { "name": "value", "type": "uint256" } ], "name": "transfer", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "spender", "type": "address" }, { "name": "value", "type": "uint256" } ], "name": "approve", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "from", "type": "address" }, { "name": "to", "type": "address" }, { "name": "value", "type": "uint256" } ], "name": "transferFrom", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "spender", "type": "address" }, { "name": "addedValue", "type": "uint256" } ], "name": "increaseAllowance", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "spender", "type": "address" }, { "name": "subtractedValue", "type": "uint256" } ], "name": "decreaseAllowance", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "bytecode": 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"source": "pragma solidity ^0.5.0;\nimport \"../utils/SafeMath.sol\";\n\n\n/**\n * @title Standard ERC20 token\n *\n * @dev Implementation of the basic standard token.\n * https://eips.ethereum.org/EIPS/eip-20\n * Originally based on code by FirstBlood:\n * https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol\n *\n * This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for\n * all accounts just by listening to said events. Note that this isn't required by the specification, and other\n * compliant implementations may not do it.\n */\ncontract ERC20 {\n using SafeMath for uint256;\n\n mapping (address => uint256) internal _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 uint256 internal _totalSupply;\n\n /**\n * @dev Total number of tokens in existence\n */\n function totalSupply() public view returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev Gets the balance of the specified address.\n * @param owner The address to query the balance of.\n * @return A uint256 representing the amount owned by the passed address.\n */\n function balanceOf(address owner) public view returns (uint256) {\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 to 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 _transfer(msg.sender, 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 * 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 _approve(msg.sender, spender, value);\n return true;\n }\n\n /**\n * @dev Transfer tokens from one address to another.\n * Note that while this function emits an Approval event, this is not required as per the specification,\n * and other compliant implementations may not emit the event.\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 _transfer(from, to, value);\n _approve(from, msg.sender, _allowed[from][msg.sender].sub(value));\n return true;\n }\n\n /**\n * @dev Increase the amount of tokens that an owner allowed to a spender.\n * approve should be called when _allowed[msg.sender][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 * Emits an Approval event.\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 increaseAllowance(address spender, uint256 addedValue) public returns (bool) {\n _approve(msg.sender, spender, _allowed[msg.sender][spender].add(addedValue));\n return true;\n }\n\n /**\n * @dev Decrease the amount of tokens that an owner allowed to a spender.\n * approve should be called when _allowed[msg.sender][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 * Emits an Approval event.\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 decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {\n _approve(msg.sender, spender, _allowed[msg.sender][spender].sub(subtractedValue));\n return true;\n }\n\n /**\n * @dev Transfer token for a specified addresses\n * @param from The address to transfer from.\n * @param to The address to transfer to.\n * @param value The amount to be transferred.\n */\n function _transfer(address from, address to, uint256 value) internal {\n require(to != address(0));\n\n _balances[from] = _balances[from].sub(value);\n _balances[to] = _balances[to].add(value);\n emit Transfer(from, to, value);\n }\n\n /**\n * @dev Internal function that mints an amount of the token and assigns it to\n * an account. This encapsulates the modification of balances such that the\n * proper events are emitted.\n * @param account The account that will receive the created tokens.\n * @param value The amount that will be created.\n */\n function _mint(address account, uint256 value) internal {\n require(account != address(0));\n\n _totalSupply = _totalSupply.add(value);\n _balances[account] = _balances[account].add(value);\n emit Transfer(address(0), account, value);\n }\n\n /**\n * @dev Internal function that burns an amount of the token of a given\n * account.\n * @param account The account whose tokens will be burnt.\n * @param value The amount that will be burnt.\n */\n function _burn(address account, uint256 value) internal {\n require(account != address(0));\n\n _totalSupply = _totalSupply.sub(value);\n _balances[account] = _balances[account].sub(value);\n emit Transfer(account, address(0), value);\n }\n\n /**\n * @dev Approve an address to spend another addresses' tokens.\n * @param owner The address that owns the tokens.\n * @param spender The address that will spend the tokens.\n * @param value The number of tokens that can be spent.\n */\n function _approve(address owner, address spender, uint256 value) internal {\n require(spender != address(0));\n require(owner != address(0));\n\n _allowed[owner][spender] = value;\n emit Approval(owner, spender, value);\n }\n\n /**\n * @dev Internal function that burns an amount of the token of a given\n * account, deducting from the sender's allowance for said account. Uses the\n * internal burn function.\n * Emits an Approval event (reflecting the reduced allowance).\n * @param account The account whose tokens will be burnt.\n * @param value The amount that will be burnt.\n */\n function _burnFrom(address account, uint256 value) internal {\n _burn(account, value);\n _approve(account, msg.sender, _allowed[account][msg.sender].sub(value));\n }\n}\n", "sourcePath": "/home/binyu/Desktop/Synthetix/prod/swap-solidity/contracts/tokens/ERC20.sol", "ast": { "absolutePath": "/home/binyu/Desktop/Synthetix/prod/swap-solidity/contracts/tokens/ERC20.sol", "exportedSymbols": { "ERC20": [ 3661 ] }, "id": 3662, "nodeType": "SourceUnit", "nodes": [ { "id": 3267, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:9" }, { "absolutePath": "/home/binyu/Desktop/Synthetix/prod/swap-solidity/contracts/utils/SafeMath.sol", "file": "../utils/SafeMath.sol", "id": 3268, "nodeType": "ImportDirective", "scope": 3662, "sourceUnit": 5895, "src": "24:31:9", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "@title Standard ERC20 token\n * @dev Implementation of the basic standard token.\nhttps://eips.ethereum.org/EIPS/eip-20\nOriginally based on code by FirstBlood:\nhttps://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol\n * This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for\nall accounts just by listening to said events. Note that this isn't required by the specification, and other\ncompliant implementations may not do it.", "fullyImplemented": true, "id": 3661, "linearizedBaseContracts": [ 3661 ], "name": "ERC20", "nodeType": "ContractDefinition", "nodes": [ { "id": 3271, "libraryName": { "contractScope": null, "id": 3269, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5894, "src": "627:8:9", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$5894", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "621:27:9", "typeName": { "id": 3270, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "640:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "constant": false, "id": 3275, "name": "_balances", "nodeType": "VariableDeclaration", "scope": 3661, "src": "652:47:9", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "typeName": { "id": 3274, "keyType": { "id": 3272, "name": "address", "nodeType": "ElementaryTypeName", "src": "661:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "652:28:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 3273, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "672:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3281, "name": "_allowed", "nodeType": "VariableDeclaration", "scope": 3661, "src": "703:67:9", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" }, "typeName": { "id": 3280, "keyType": { "id": 3276, "name": "address", "nodeType": "ElementaryTypeName", "src": "712:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "703:49:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" }, "valueType": { "id": 3279, "keyType": { "id": 3277, "name": "address", "nodeType": "ElementaryTypeName", "src": "732:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "723:28:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 3278, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "743:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } } }, "value": null, "visibility": "internal" }, { "anonymous": false, "documentation": null, "id": 3289, "name": "Transfer", "nodeType": "EventDefinition", "parameters": { "id": 3288, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3283, "indexed": true, "name": "from", "nodeType": "VariableDeclaration", "scope": 3289, "src": "792:20:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3282, "name": "address", "nodeType": "ElementaryTypeName", "src": "792:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3285, "indexed": true, "name": "to", "nodeType": "VariableDeclaration", "scope": 3289, "src": "814:18:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3284, "name": "address", "nodeType": "ElementaryTypeName", "src": "814:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3287, "indexed": false, "name": "value", "nodeType": "VariableDeclaration", "scope": 3289, "src": "834:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3286, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "834:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "791:57:9" }, "src": "777:72:9" }, { "anonymous": false, "documentation": null, "id": 3297, "name": "Approval", "nodeType": "EventDefinition", "parameters": { "id": 3296, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3291, "indexed": true, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3297, "src": "867:21:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3290, "name": "address", "nodeType": "ElementaryTypeName", "src": "867:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3293, "indexed": true, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3297, "src": "890:23:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3292, "name": "address", "nodeType": "ElementaryTypeName", "src": "890:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3295, "indexed": false, "name": "value", "nodeType": "VariableDeclaration", "scope": 3297, "src": "915:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3294, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "915:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "866:63:9" }, "src": "852:78:9" }, { "constant": false, "id": 3299, "name": "_totalSupply", "nodeType": "VariableDeclaration", "scope": 3661, "src": "934:29:9", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3298, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "934:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "body": { "id": 3306, "nodeType": "Block", "src": "1081:30:9", "statements": [ { "expression": { "argumentTypes": null, "id": 3304, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "1094:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 3303, "id": 3305, "nodeType": "Return", "src": "1087:19:9" } ] }, "documentation": "@dev Total number of tokens in existence", "id": 3307, "implemented": true, "kind": "function", "modifiers": [], "name": "totalSupply", "nodeType": "FunctionDefinition", "parameters": { "id": 3300, "nodeType": "ParameterList", "parameters": [], "src": "1048:2:9" }, "returnParameters": { "id": 3303, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3302, "name": "", "nodeType": "VariableDeclaration", "scope": 3307, "src": "1072:7:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3301, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1072:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1071:9:9" }, "scope": 3661, "src": "1028:83:9", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 3318, "nodeType": "Block", "src": "1379:34:9", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3314, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "1392:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3316, "indexExpression": { "argumentTypes": null, "id": 3315, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3309, "src": "1402:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1392:16:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 3313, "id": 3317, "nodeType": "Return", "src": "1385:23:9" } ] }, "documentation": "@dev Gets the balance of the specified address.\n@param owner The address to query the balance of.\n@return A uint256 representing the amount owned by the passed address.", "id": 3319, "implemented": true, "kind": "function", "modifiers": [], "name": "balanceOf", "nodeType": "FunctionDefinition", "parameters": { "id": 3310, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3309, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3319, "src": "1334:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3308, "name": "address", "nodeType": "ElementaryTypeName", "src": "1334:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1333:15:9" }, "returnParameters": { "id": 3313, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3312, "name": "", "nodeType": "VariableDeclaration", "scope": 3319, "src": "1370:7:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3311, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1370:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1369:9:9" }, "scope": 3661, "src": "1315:98:9", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 3334, "nodeType": "Block", "src": "1816:42:9", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3328, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "1829:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3330, "indexExpression": { "argumentTypes": null, "id": 3329, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3321, "src": "1838:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1829:15:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3332, "indexExpression": { "argumentTypes": null, "id": 3331, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3323, "src": "1845:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1829:24:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 3327, "id": 3333, "nodeType": "Return", "src": "1822:31:9" } ] }, "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": 3335, "implemented": true, "kind": "function", "modifiers": [], "name": "allowance", "nodeType": "FunctionDefinition", "parameters": { "id": 3324, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3321, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3335, "src": "1754:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3320, "name": "address", "nodeType": "ElementaryTypeName", "src": "1754:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3323, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3335, "src": "1769:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3322, "name": "address", "nodeType": "ElementaryTypeName", "src": "1769:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1753:32:9" }, "returnParameters": { "id": 3327, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3326, "name": "", "nodeType": "VariableDeclaration", "scope": 3335, "src": "1807:7:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3325, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1807:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1806:9:9" }, "scope": 3661, "src": "1735:123:9", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 3353, "nodeType": "Block", "src": "2084:60:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3345, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "2100:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3346, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2100:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3347, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3337, "src": "2112:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3348, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3339, "src": "2116:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3344, "name": "_transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3508, "src": "2090:9:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3349, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2090:32:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3350, "nodeType": "ExpressionStatement", "src": "2090:32:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3351, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "2135:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3343, "id": 3352, "nodeType": "Return", "src": "2128:11:9" } ] }, "documentation": "@dev Transfer token to a specified address\n@param to The address to transfer to.\n@param value The amount to be transferred.", "id": 3354, "implemented": true, "kind": "function", "modifiers": [], "name": "transfer", "nodeType": "FunctionDefinition", "parameters": { "id": 3340, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3337, "name": "to", "nodeType": "VariableDeclaration", "scope": 3354, "src": "2035:10:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3336, "name": "address", "nodeType": "ElementaryTypeName", "src": "2035:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3339, "name": "value", "nodeType": "VariableDeclaration", "scope": 3354, "src": "2047:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3338, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2047:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2034:27:9" }, "returnParameters": { "id": 3343, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3342, "name": "", "nodeType": "VariableDeclaration", "scope": 3354, "src": "2078:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3341, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2078:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2077:6:9" }, "scope": 3661, "src": "2017:127:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3372, "nodeType": "Block", "src": "2839:64:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3364, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "2854:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3365, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2854:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3366, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3356, "src": "2866:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3367, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3358, "src": "2875:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3363, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "2845:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3368, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2845:36:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3369, "nodeType": "ExpressionStatement", "src": "2845:36:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3370, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "2894:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3362, "id": 3371, "nodeType": "Return", "src": "2887:11:9" } ] }, "documentation": "@dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.\nBeware 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": 3373, "implemented": true, "kind": "function", "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 3359, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3356, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3373, "src": "2785:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3355, "name": "address", "nodeType": "ElementaryTypeName", "src": "2785:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3358, "name": "value", "nodeType": "VariableDeclaration", "scope": 3373, "src": "2802:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3357, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2802:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2784:32:9" }, "returnParameters": { "id": 3362, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3361, "name": "", "nodeType": "VariableDeclaration", "scope": 3373, "src": "2833:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3360, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2833:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2832:6:9" }, "scope": 3661, "src": "2768:135:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3407, "nodeType": "Block", "src": "3440:125:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3385, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3375, "src": "3456:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3386, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3377, "src": "3462:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3387, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3379, "src": "3466:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3384, "name": "_transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3508, "src": "3446:9:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3388, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3446:26:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3389, "nodeType": "ExpressionStatement", "src": "3446:26:9" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3391, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3375, "src": "3487:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3392, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "3493:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3393, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3493:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3401, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3379, "src": "3536:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3394, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "3505:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3396, "indexExpression": { "argumentTypes": null, "id": 3395, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3375, "src": "3514:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3505:14:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3399, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3397, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "3520:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3398, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3520:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3505:26:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3400, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "3505:30:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3402, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3505:37:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3390, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "3478:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3403, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3478:65:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3404, "nodeType": "ExpressionStatement", "src": "3478:65:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3405, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "3556:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3383, "id": 3406, "nodeType": "Return", "src": "3549:11:9" } ] }, "documentation": "@dev Transfer tokens from one address to another.\nNote that while this function emits an Approval event, this is not required as per the specification,\nand other compliant implementations may not emit the event.\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": 3408, "implemented": true, "kind": "function", "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 3380, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3375, "name": "from", "nodeType": "VariableDeclaration", "scope": 3408, "src": "3377:12:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3374, "name": "address", "nodeType": "ElementaryTypeName", "src": "3377:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3377, "name": "to", "nodeType": "VariableDeclaration", "scope": 3408, "src": "3391:10:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3376, "name": "address", "nodeType": "ElementaryTypeName", "src": "3391:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3379, "name": "value", "nodeType": "VariableDeclaration", "scope": 3408, "src": "3403:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3378, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3403:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3376:41:9" }, "returnParameters": { "id": 3383, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3382, "name": "", "nodeType": "VariableDeclaration", "scope": 3408, "src": "3434:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3381, "name": "bool", "nodeType": "ElementaryTypeName", "src": "3434:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "3433:6:9" }, "scope": 3661, "src": "3355:210:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3434, "nodeType": "Block", "src": "4152:104:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3418, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "4167:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3419, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4167:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3420, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3410, "src": "4179:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3428, "name": "addedValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3412, "src": "4222:10:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3421, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "4188:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3424, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3422, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "4197:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3423, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4197:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4188:20:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3426, "indexExpression": { "argumentTypes": null, "id": 3425, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3410, "src": "4209:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4188:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3427, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 5872, "src": "4188:33:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3429, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4188:45:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3417, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "4158:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3430, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4158:76:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3431, "nodeType": "ExpressionStatement", "src": "4158:76:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3432, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "4247:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3416, "id": 3433, "nodeType": "Return", "src": "4240:11:9" } ] }, "documentation": "@dev Increase the amount of tokens that an owner allowed to a spender.\napprove should be called when _allowed[msg.sender][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\nEmits an Approval event.\n@param spender The address which will spend the funds.\n@param addedValue The amount of tokens to increase the allowance by.", "id": 3435, "implemented": true, "kind": "function", "modifiers": [], "name": "increaseAllowance", "nodeType": "FunctionDefinition", "parameters": { "id": 3413, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3410, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3435, "src": "4093:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3409, "name": "address", "nodeType": "ElementaryTypeName", "src": "4093:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3412, "name": "addedValue", "nodeType": "VariableDeclaration", "scope": 3435, "src": "4110:18:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3411, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4110:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4092:37:9" }, "returnParameters": { "id": 3416, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3415, "name": "", "nodeType": "VariableDeclaration", "scope": 3435, "src": "4146:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3414, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4146:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4145:6:9" }, "scope": 3661, "src": "4066:190:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3461, "nodeType": "Block", "src": "4853:109:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3445, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "4868:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3446, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4868:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3447, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3437, "src": "4880:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3455, "name": "subtractedValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3439, "src": "4923:15:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3448, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "4889:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3451, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3449, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "4898:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3450, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4898:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4889:20:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3453, "indexExpression": { "argumentTypes": null, "id": 3452, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3437, "src": "4910:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4889:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3454, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "4889:33:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3456, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4889:50:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3444, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "4859:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3457, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4859:81:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3458, "nodeType": "ExpressionStatement", "src": "4859:81:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3459, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "4953:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3443, "id": 3460, "nodeType": "Return", "src": "4946:11:9" } ] }, "documentation": "@dev Decrease the amount of tokens that an owner allowed to a spender.\napprove should be called when _allowed[msg.sender][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\nEmits an Approval event.\n@param spender The address which will spend the funds.\n@param subtractedValue The amount of tokens to decrease the allowance by.", "id": 3462, "implemented": true, "kind": "function", "modifiers": [], "name": "decreaseAllowance", "nodeType": "FunctionDefinition", "parameters": { "id": 3440, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3437, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3462, "src": "4789:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3436, "name": "address", "nodeType": "ElementaryTypeName", "src": "4789:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3439, "name": "subtractedValue", "nodeType": "VariableDeclaration", "scope": 3462, "src": "4806:23:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3438, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4806:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4788:42:9" }, "returnParameters": { "id": 3443, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3442, "name": "", "nodeType": "VariableDeclaration", "scope": 3462, "src": "4847:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3441, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4847:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4846:6:9" }, "scope": 3661, "src": "4762:200:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3507, "nodeType": "Block", "src": "5241:169:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3476, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3472, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3466, "src": "5255:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3474, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5269:1:9", "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": 3473, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5261:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3475, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5261:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "5255:16:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3471, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "5247:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3477, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5247:25:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3478, "nodeType": "ExpressionStatement", "src": "5247:25:9" }, { "expression": { "argumentTypes": null, "id": 3488, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3479, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5279:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3481, "indexExpression": { "argumentTypes": null, "id": 3480, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3464, "src": "5289:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5279:15:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3486, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3468, "src": "5317:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3482, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5297:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3484, "indexExpression": { "argumentTypes": null, "id": 3483, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3464, "src": "5307:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5297:15:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3485, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "5297:19:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3487, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5297:26:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5279:44:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3489, "nodeType": "ExpressionStatement", "src": "5279:44:9" }, { "expression": { "argumentTypes": null, "id": 3499, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3490, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5329:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3492, "indexExpression": { "argumentTypes": null, "id": 3491, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3466, "src": "5339:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5329:13:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3497, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3468, "src": "5363:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3493, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5345:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3495, "indexExpression": { "argumentTypes": null, "id": 3494, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3466, "src": "5355:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5345:13:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3496, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 5872, "src": "5345:17:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3498, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5345:24:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5329:40:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3500, "nodeType": "ExpressionStatement", "src": "5329:40:9" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3502, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3464, "src": "5389:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3503, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3466, "src": "5395:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3504, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3468, "src": "5399:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3501, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3289, "src": "5380:8:9", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3505, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5380:25:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3506, "nodeType": "EmitStatement", "src": "5375:30:9" } ] }, "documentation": "@dev Transfer token for a specified addresses\n@param from The address to transfer from.\n@param to The address to transfer to.\n@param value The amount to be transferred.", "id": 3508, "implemented": true, "kind": "function", "modifiers": [], "name": "_transfer", "nodeType": "FunctionDefinition", "parameters": { "id": 3469, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3464, "name": "from", "nodeType": "VariableDeclaration", "scope": 3508, "src": "5191:12:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3463, "name": "address", "nodeType": "ElementaryTypeName", "src": "5191:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3466, "name": "to", "nodeType": "VariableDeclaration", "scope": 3508, "src": "5205:10:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3465, "name": "address", "nodeType": "ElementaryTypeName", "src": "5205:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3468, "name": "value", "nodeType": "VariableDeclaration", "scope": 3508, "src": "5217:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3467, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5217:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5190:41:9" }, "returnParameters": { "id": 3470, "nodeType": "ParameterList", "parameters": [], "src": "5241:0:9" }, "scope": 3661, "src": "5172:238:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3549, "nodeType": "Block", "src": "5799:189:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3520, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3516, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3510, "src": "5813:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3518, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5832:1:9", "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": 3517, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5824:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3519, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5824:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "5813:21:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3515, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "5805:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3521, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5805:30:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3522, "nodeType": "ExpressionStatement", "src": "5805:30:9" }, { "expression": { "argumentTypes": null, "id": 3528, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3523, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "5842:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3526, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3512, "src": "5874:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3524, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "5857:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3525, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 5872, "src": "5857:16:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3527, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5857:23:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5842:38:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3529, "nodeType": "ExpressionStatement", "src": "5842:38:9" }, { "expression": { "argumentTypes": null, "id": 3539, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3530, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5886:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3532, "indexExpression": { "argumentTypes": null, "id": 3531, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3510, "src": "5896:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5886:18:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3537, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3512, "src": "5930:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3533, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5907:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3535, "indexExpression": { "argumentTypes": null, "id": 3534, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3510, "src": "5917:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5907:18:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3536, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 5872, "src": "5907:22:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3538, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5907:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5886:50:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3540, "nodeType": "ExpressionStatement", "src": "5886:50:9" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3543, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5964:1:9", "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": 3542, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5956:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3544, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5956:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3545, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3510, "src": "5968:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3546, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3512, "src": "5977:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3541, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3289, "src": "5947:8:9", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3547, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5947:36:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3548, "nodeType": "EmitStatement", "src": "5942:41:9" } ] }, "documentation": "@dev Internal function that mints an amount of the token and assigns it to\nan account. This encapsulates the modification of balances such that the\nproper events are emitted.\n@param account The account that will receive the created tokens.\n@param value The amount that will be created.", "id": 3550, "implemented": true, "kind": "function", "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "parameters": { "id": 3513, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3510, "name": "account", "nodeType": "VariableDeclaration", "scope": 3550, "src": "5758:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3509, "name": "address", "nodeType": "ElementaryTypeName", "src": "5758:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3512, "name": "value", "nodeType": "VariableDeclaration", "scope": 3550, "src": "5775:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3511, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5775:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5757:32:9" }, "returnParameters": { "id": 3514, "nodeType": "ParameterList", "parameters": [], "src": "5799:0:9" }, "scope": 3661, "src": "5743:245:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3591, "nodeType": "Block", "src": "6261:189:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3562, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3558, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3552, "src": "6275:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3560, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6294:1:9", "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": 3559, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6286:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3561, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6286:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "6275:21:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3557, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "6267:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3563, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6267:30:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3564, "nodeType": "ExpressionStatement", "src": "6267:30:9" }, { "expression": { "argumentTypes": null, "id": 3570, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3565, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "6304:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3568, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3554, "src": "6336:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3566, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "6319:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3567, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "6319:16:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3569, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6319:23:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6304:38:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3571, "nodeType": "ExpressionStatement", "src": "6304:38:9" }, { "expression": { "argumentTypes": null, "id": 3581, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3572, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "6348:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3574, "indexExpression": { "argumentTypes": null, "id": 3573, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3552, "src": "6358:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6348:18:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3579, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3554, "src": "6392:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3575, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "6369:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3577, "indexExpression": { "argumentTypes": null, "id": 3576, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3552, "src": "6379:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6369:18:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3578, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "6369:22:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3580, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6369:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6348:50:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3582, "nodeType": "ExpressionStatement", "src": "6348:50:9" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3584, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3552, "src": "6418:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3586, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6435:1:9", "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": 3585, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6427:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3587, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6427:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3588, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3554, "src": "6439:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3583, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3289, "src": "6409:8:9", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3589, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6409:36:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3590, "nodeType": "EmitStatement", "src": "6404:41:9" } ] }, "documentation": "@dev Internal function that burns an amount of the token of a given\naccount.\n@param account The account whose tokens will be burnt.\n@param value The amount that will be burnt.", "id": 3592, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 3555, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3552, "name": "account", "nodeType": "VariableDeclaration", "scope": 3592, "src": "6220:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3551, "name": "address", "nodeType": "ElementaryTypeName", "src": "6220:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3554, "name": "value", "nodeType": "VariableDeclaration", "scope": 3592, "src": "6237:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3553, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6237:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6219:32:9" }, "returnParameters": { "id": 3556, "nodeType": "ParameterList", "parameters": [], "src": "6261:0:9" }, "scope": 3661, "src": "6205:245:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3631, "nodeType": "Block", "src": "6780:156:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3606, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3602, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3596, "src": "6794:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3604, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6813:1:9", "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": 3603, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6805:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3605, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6805:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "6794:21:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3601, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "6786:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3607, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6786:30:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3608, "nodeType": "ExpressionStatement", "src": "6786:30:9" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3614, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3610, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3594, "src": "6830:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3612, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6847:1:9", "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": 3611, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6839:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3613, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6839:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "6830:19:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3609, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "6822:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3615, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6822:28:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3616, "nodeType": "ExpressionStatement", "src": "6822:28:9" }, { "expression": { "argumentTypes": null, "id": 3623, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3617, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "6857:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3620, "indexExpression": { "argumentTypes": null, "id": 3618, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3594, "src": "6866:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6857:15:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3621, "indexExpression": { "argumentTypes": null, "id": 3619, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3596, "src": "6873:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6857:24:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3622, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3598, "src": "6884:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6857:32:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3624, "nodeType": "ExpressionStatement", "src": "6857:32:9" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3626, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3594, "src": "6909:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3627, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3596, "src": "6916:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3628, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3598, "src": "6925:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3625, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3297, "src": "6900:8:9", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3629, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6900:31:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3630, "nodeType": "EmitStatement", "src": "6895:36:9" } ] }, "documentation": "@dev Approve an address to spend another addresses' tokens.\n@param owner The address that owns the tokens.\n@param spender The address that will spend the tokens.\n@param value The number of tokens that can be spent.", "id": 3632, "implemented": true, "kind": "function", "modifiers": [], "name": "_approve", "nodeType": "FunctionDefinition", "parameters": { "id": 3599, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3594, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3632, "src": "6724:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3593, "name": "address", "nodeType": "ElementaryTypeName", "src": "6724:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3596, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3632, "src": "6739:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3595, "name": "address", "nodeType": "ElementaryTypeName", "src": "6739:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3598, "name": "value", "nodeType": "VariableDeclaration", "scope": 3632, "src": "6756:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3597, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6756:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6723:47:9" }, "returnParameters": { "id": 3600, "nodeType": "ParameterList", "parameters": [], "src": "6780:0:9" }, "scope": 3661, "src": "6706:230:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3659, "nodeType": "Block", "src": "7374:109:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3640, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3634, "src": "7386:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3641, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3636, "src": "7395:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3639, "name": "_burn", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3592, "src": "7380:5:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3642, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7380:21:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3643, "nodeType": "ExpressionStatement", "src": "7380:21:9" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3645, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3634, "src": "7416:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3646, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "7425:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3647, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7425:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3655, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3636, "src": "7471:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3648, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "7437:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3650, "indexExpression": { "argumentTypes": null, "id": 3649, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3634, "src": "7446:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7437:17:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3653, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3651, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "7455:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3652, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7455:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7437:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3654, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "7437:33:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3656, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7437:40:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3644, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "7407:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3657, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7407:71:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3658, "nodeType": "ExpressionStatement", "src": "7407:71:9" } ] }, "documentation": "@dev Internal function that burns an amount of the token of a given\naccount, deducting from the sender's allowance for said account. Uses the\ninternal burn function.\nEmits an Approval event (reflecting the reduced allowance).\n@param account The account whose tokens will be burnt.\n@param value The amount that will be burnt.", "id": 3660, "implemented": true, "kind": "function", "modifiers": [], "name": "_burnFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 3637, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3634, "name": "account", "nodeType": "VariableDeclaration", "scope": 3660, "src": "7333:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3633, "name": "address", "nodeType": "ElementaryTypeName", "src": "7333:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3636, "name": "value", "nodeType": "VariableDeclaration", "scope": 3660, "src": "7350:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3635, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7350:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "7332:32:9" }, "returnParameters": { "id": 3638, "nodeType": "ParameterList", "parameters": [], "src": "7374:0:9" }, "scope": 3661, "src": "7314:169:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" } ], "scope": 3662, "src": "602:6883:9" } ], "src": "0:7486:9" }, "legacyAST": { "absolutePath": "/home/binyu/Desktop/Synthetix/prod/swap-solidity/contracts/tokens/ERC20.sol", "exportedSymbols": { "ERC20": [ 3661 ] }, "id": 3662, "nodeType": "SourceUnit", "nodes": [ { "id": 3267, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:9" }, { "absolutePath": "/home/binyu/Desktop/Synthetix/prod/swap-solidity/contracts/utils/SafeMath.sol", "file": "../utils/SafeMath.sol", "id": 3268, "nodeType": "ImportDirective", "scope": 3662, "sourceUnit": 5895, "src": "24:31:9", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "@title Standard ERC20 token\n * @dev Implementation of the basic standard token.\nhttps://eips.ethereum.org/EIPS/eip-20\nOriginally based on code by FirstBlood:\nhttps://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol\n * This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for\nall accounts just by listening to said events. Note that this isn't required by the specification, and other\ncompliant implementations may not do it.", "fullyImplemented": true, "id": 3661, "linearizedBaseContracts": [ 3661 ], "name": "ERC20", "nodeType": "ContractDefinition", "nodes": [ { "id": 3271, "libraryName": { "contractScope": null, "id": 3269, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5894, "src": "627:8:9", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$5894", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "621:27:9", "typeName": { "id": 3270, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "640:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "constant": false, "id": 3275, "name": "_balances", "nodeType": "VariableDeclaration", "scope": 3661, "src": "652:47:9", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "typeName": { "id": 3274, "keyType": { "id": 3272, "name": "address", "nodeType": "ElementaryTypeName", "src": "661:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "652:28:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 3273, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "672:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3281, "name": "_allowed", "nodeType": "VariableDeclaration", "scope": 3661, "src": "703:67:9", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" }, "typeName": { "id": 3280, "keyType": { "id": 3276, "name": "address", "nodeType": "ElementaryTypeName", "src": "712:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "703:49:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" }, "valueType": { "id": 3279, "keyType": { "id": 3277, "name": "address", "nodeType": "ElementaryTypeName", "src": "732:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "723:28:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 3278, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "743:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } } }, "value": null, "visibility": "internal" }, { "anonymous": false, "documentation": null, "id": 3289, "name": "Transfer", "nodeType": "EventDefinition", "parameters": { "id": 3288, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3283, "indexed": true, "name": "from", "nodeType": "VariableDeclaration", "scope": 3289, "src": "792:20:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3282, "name": "address", "nodeType": "ElementaryTypeName", "src": "792:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3285, "indexed": true, "name": "to", "nodeType": "VariableDeclaration", "scope": 3289, "src": "814:18:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", 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3315, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3309, "src": "1402:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1392:16:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 3313, "id": 3317, "nodeType": "Return", "src": "1385:23:9" } ] }, "documentation": "@dev Gets the balance of the specified address.\n@param owner The address to query the balance of.\n@return A uint256 representing the amount owned by the passed address.", "id": 3319, "implemented": true, "kind": "function", "modifiers": [], "name": "balanceOf", "nodeType": "FunctionDefinition", "parameters": { "id": 3310, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3309, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3319, "src": "1334:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3308, "name": "address", "nodeType": "ElementaryTypeName", "src": "1334:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1333:15:9" }, "returnParameters": { "id": 3313, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3312, "name": "", "nodeType": "VariableDeclaration", "scope": 3319, "src": "1370:7:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3311, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1370:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1369:9:9" }, "scope": 3661, "src": "1315:98:9", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 3334, "nodeType": "Block", "src": "1816:42:9", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3328, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "1829:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3330, "indexExpression": { "argumentTypes": null, "id": 3329, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3321, "src": "1838:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1829:15:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3332, "indexExpression": { "argumentTypes": null, "id": 3331, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3323, "src": "1845:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1829:24:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 3327, "id": 3333, "nodeType": "Return", "src": "1822:31:9" } ] }, "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": 3335, "implemented": true, "kind": "function", "modifiers": [], "name": "allowance", "nodeType": "FunctionDefinition", "parameters": { "id": 3324, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3321, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3335, "src": "1754:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3320, "name": "address", "nodeType": "ElementaryTypeName", "src": "1754:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3323, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3335, "src": "1769:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3322, "name": "address", "nodeType": "ElementaryTypeName", "src": "1769:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1753:32:9" }, "returnParameters": { "id": 3327, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3326, "name": "", "nodeType": "VariableDeclaration", "scope": 3335, "src": "1807:7:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3325, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1807:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1806:9:9" }, "scope": 3661, "src": "1735:123:9", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 3353, "nodeType": "Block", "src": "2084:60:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3345, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "2100:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3346, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2100:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3347, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3337, "src": "2112:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3348, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3339, "src": "2116:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3344, "name": "_transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3508, "src": "2090:9:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3349, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2090:32:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3350, "nodeType": "ExpressionStatement", "src": "2090:32:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3351, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "2135:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3343, "id": 3352, "nodeType": "Return", "src": "2128:11:9" } ] }, "documentation": "@dev Transfer token to a specified address\n@param to The address to transfer to.\n@param value The amount to be transferred.", "id": 3354, "implemented": true, "kind": "function", "modifiers": [], "name": "transfer", "nodeType": "FunctionDefinition", "parameters": { "id": 3340, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3337, "name": "to", "nodeType": "VariableDeclaration", "scope": 3354, "src": "2035:10:9", 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3342, "name": "", "nodeType": "VariableDeclaration", "scope": 3354, "src": "2078:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3341, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2078:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2077:6:9" }, "scope": 3661, "src": "2017:127:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3372, "nodeType": "Block", "src": "2839:64:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3364, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "2854:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3365, 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} ], "id": 3363, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "2845:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3368, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2845:36:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3369, "nodeType": "ExpressionStatement", "src": "2845:36:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3370, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "2894:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, 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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": 3373, "implemented": true, "kind": "function", "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 3359, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3356, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3373, "src": "2785:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3355, "name": "address", "nodeType": "ElementaryTypeName", "src": "2785:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, 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"typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2832:6:9" }, "scope": 3661, "src": "2768:135:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3407, "nodeType": "Block", "src": "3440:125:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3385, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3375, "src": "3456:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3386, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3377, "src": "3462:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3387, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3379, "src": "3466:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3384, "name": "_transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3508, "src": "3446:9:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3388, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3446:26:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3389, "nodeType": "ExpressionStatement", "src": "3446:26:9" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3391, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3375, "src": "3487:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3392, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "3493:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3393, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3493:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3401, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3379, "src": "3536:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3394, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "3505:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3396, "indexExpression": { "argumentTypes": null, "id": 3395, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3375, "src": "3514:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3505:14:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3399, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3397, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "3520:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3398, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3520:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3505:26:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3400, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "3505:30:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3402, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3505:37:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3390, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "3478:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3403, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3478:65:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3404, "nodeType": "ExpressionStatement", "src": "3478:65:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3405, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "3556:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3383, "id": 3406, "nodeType": "Return", "src": "3549:11:9" } ] }, "documentation": "@dev Transfer tokens from one address to another.\nNote that while this function emits an Approval event, this is not required as per the specification,\nand other compliant implementations may not emit the event.\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": 3408, "implemented": true, "kind": "function", "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 3380, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3375, "name": "from", "nodeType": "VariableDeclaration", "scope": 3408, "src": "3377:12:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3374, "name": "address", "nodeType": "ElementaryTypeName", "src": "3377:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3377, "name": "to", "nodeType": "VariableDeclaration", "scope": 3408, "src": "3391:10:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3376, "name": "address", "nodeType": "ElementaryTypeName", "src": "3391:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3379, "name": "value", "nodeType": "VariableDeclaration", "scope": 3408, "src": "3403:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3378, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3403:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3376:41:9" }, "returnParameters": { "id": 3383, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3382, "name": "", "nodeType": "VariableDeclaration", "scope": 3408, "src": "3434:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3381, "name": "bool", "nodeType": "ElementaryTypeName", "src": "3434:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "3433:6:9" }, "scope": 3661, "src": "3355:210:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3434, "nodeType": "Block", "src": "4152:104:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3418, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "4167:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3419, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4167:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3420, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3410, "src": "4179:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3428, "name": "addedValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3412, "src": "4222:10:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3421, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "4188:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3424, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3422, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "4197:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3423, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4197:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4188:20:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3426, "indexExpression": { "argumentTypes": null, "id": 3425, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3410, "src": "4209:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4188:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3427, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 5872, "src": "4188:33:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3429, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4188:45:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3417, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "4158:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3430, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4158:76:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3431, "nodeType": "ExpressionStatement", "src": "4158:76:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3432, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "4247:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3416, "id": 3433, "nodeType": "Return", "src": "4240:11:9" } ] }, "documentation": "@dev Increase the amount of tokens that an owner allowed to a spender.\napprove should be called when _allowed[msg.sender][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\nEmits an Approval event.\n@param spender The address which will spend the funds.\n@param addedValue The amount of tokens to increase the allowance by.", "id": 3435, "implemented": true, "kind": "function", "modifiers": [], "name": "increaseAllowance", "nodeType": "FunctionDefinition", "parameters": { "id": 3413, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3410, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3435, "src": "4093:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3409, "name": "address", "nodeType": "ElementaryTypeName", "src": "4093:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3412, "name": "addedValue", "nodeType": "VariableDeclaration", "scope": 3435, "src": "4110:18:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3411, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4110:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4092:37:9" }, "returnParameters": { "id": 3416, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3415, "name": "", "nodeType": "VariableDeclaration", "scope": 3435, "src": "4146:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3414, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4146:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4145:6:9" }, "scope": 3661, "src": "4066:190:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3461, "nodeType": "Block", "src": "4853:109:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3445, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "4868:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3446, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4868:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3447, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3437, "src": "4880:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3455, "name": "subtractedValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3439, "src": "4923:15:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3448, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "4889:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3451, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3449, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "4898:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3450, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4898:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4889:20:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3453, "indexExpression": { "argumentTypes": null, "id": 3452, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3437, "src": "4910:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4889:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3454, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "4889:33:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3456, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4889:50:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3444, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "4859:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3457, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4859:81:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3458, "nodeType": "ExpressionStatement", "src": "4859:81:9" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3459, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "4953:4:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3443, "id": 3460, "nodeType": "Return", "src": "4946:11:9" } ] }, "documentation": "@dev Decrease the amount of tokens that an owner allowed to a spender.\napprove should be called when _allowed[msg.sender][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\nEmits an Approval event.\n@param spender The address which will spend the funds.\n@param subtractedValue The amount of tokens to decrease the allowance by.", "id": 3462, "implemented": true, "kind": "function", "modifiers": [], "name": "decreaseAllowance", "nodeType": "FunctionDefinition", "parameters": { "id": 3440, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3437, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3462, "src": "4789:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3436, "name": "address", "nodeType": "ElementaryTypeName", "src": "4789:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3439, "name": "subtractedValue", "nodeType": "VariableDeclaration", "scope": 3462, "src": "4806:23:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3438, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4806:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4788:42:9" }, "returnParameters": { "id": 3443, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3442, "name": "", "nodeType": "VariableDeclaration", "scope": 3462, "src": "4847:4:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3441, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4847:4:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4846:6:9" }, "scope": 3661, "src": "4762:200:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3507, "nodeType": "Block", "src": "5241:169:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3476, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3472, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3466, "src": "5255:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3474, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5269:1:9", "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": 3473, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5261:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3475, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5261:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "5255:16:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3471, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "5247:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3477, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5247:25:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3478, "nodeType": "ExpressionStatement", "src": "5247:25:9" }, { "expression": { "argumentTypes": null, "id": 3488, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3479, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5279:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3481, "indexExpression": { "argumentTypes": null, "id": 3480, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3464, "src": "5289:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5279:15:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3486, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3468, "src": "5317:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3482, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5297:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3484, "indexExpression": { "argumentTypes": null, "id": 3483, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3464, "src": "5307:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5297:15:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3485, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "5297:19:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3487, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5297:26:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5279:44:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3489, "nodeType": "ExpressionStatement", "src": "5279:44:9" }, { "expression": { "argumentTypes": null, "id": 3499, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3490, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5329:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3492, "indexExpression": { "argumentTypes": null, "id": 3491, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3466, "src": "5339:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5329:13:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3497, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3468, "src": "5363:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3493, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5345:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3495, "indexExpression": { "argumentTypes": null, "id": 3494, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3466, "src": "5355:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5345:13:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3496, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 5872, "src": "5345:17:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3498, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5345:24:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5329:40:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3500, "nodeType": "ExpressionStatement", "src": "5329:40:9" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3502, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3464, "src": "5389:4:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3503, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3466, "src": "5395:2:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3504, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3468, "src": "5399:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3501, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3289, "src": "5380:8:9", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3505, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5380:25:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3506, "nodeType": "EmitStatement", "src": "5375:30:9" } ] }, "documentation": "@dev Transfer token for a specified addresses\n@param from The address to transfer from.\n@param to The address to transfer to.\n@param value The amount to be transferred.", "id": 3508, "implemented": true, "kind": "function", "modifiers": [], "name": "_transfer", "nodeType": "FunctionDefinition", "parameters": { "id": 3469, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3464, "name": "from", "nodeType": "VariableDeclaration", "scope": 3508, "src": "5191:12:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3463, "name": "address", "nodeType": "ElementaryTypeName", "src": "5191:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3466, "name": "to", "nodeType": "VariableDeclaration", "scope": 3508, "src": "5205:10:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3465, "name": "address", "nodeType": "ElementaryTypeName", "src": "5205:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3468, "name": "value", "nodeType": "VariableDeclaration", "scope": 3508, "src": "5217:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3467, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5217:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5190:41:9" }, "returnParameters": { "id": 3470, "nodeType": "ParameterList", "parameters": [], "src": "5241:0:9" }, "scope": 3661, "src": "5172:238:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3549, "nodeType": "Block", "src": "5799:189:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3520, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3516, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3510, "src": "5813:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3518, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5832:1:9", "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": 3517, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5824:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3519, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5824:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "5813:21:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3515, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "5805:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3521, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5805:30:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3522, "nodeType": "ExpressionStatement", "src": "5805:30:9" }, { "expression": { "argumentTypes": null, "id": 3528, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3523, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "5842:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3526, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3512, "src": "5874:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3524, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "5857:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3525, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 5872, "src": "5857:16:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3527, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5857:23:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5842:38:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3529, "nodeType": "ExpressionStatement", "src": "5842:38:9" }, { "expression": { "argumentTypes": null, "id": 3539, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3530, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5886:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3532, "indexExpression": { "argumentTypes": null, "id": 3531, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3510, "src": "5896:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5886:18:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3537, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3512, "src": "5930:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3533, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "5907:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3535, "indexExpression": { "argumentTypes": null, "id": 3534, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3510, "src": "5917:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5907:18:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3536, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 5872, "src": "5907:22:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3538, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5907:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5886:50:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3540, "nodeType": "ExpressionStatement", "src": "5886:50:9" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3543, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5964:1:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3542, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5956:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3544, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5956:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3545, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3510, "src": "5968:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3546, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3512, "src": "5977:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3541, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3289, "src": "5947:8:9", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3547, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5947:36:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3548, "nodeType": "EmitStatement", "src": "5942:41:9" } ] }, "documentation": "@dev Internal function that mints an amount of the token and assigns it to\nan account. This encapsulates the modification of balances such that the\nproper events are emitted.\n@param account The account that will receive the created tokens.\n@param value The amount that will be created.", "id": 3550, "implemented": true, "kind": "function", "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "parameters": { "id": 3513, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3510, "name": "account", "nodeType": "VariableDeclaration", "scope": 3550, "src": "5758:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3509, "name": "address", "nodeType": "ElementaryTypeName", "src": "5758:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3512, "name": "value", "nodeType": "VariableDeclaration", "scope": 3550, "src": "5775:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3511, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5775:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5757:32:9" }, "returnParameters": { "id": 3514, "nodeType": "ParameterList", "parameters": [], "src": "5799:0:9" }, "scope": 3661, "src": "5743:245:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3591, "nodeType": "Block", "src": "6261:189:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3562, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3558, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3552, "src": "6275:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3560, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6294:1:9", "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": 3559, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6286:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3561, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6286:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "6275:21:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3557, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "6267:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3563, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6267:30:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3564, "nodeType": "ExpressionStatement", "src": "6267:30:9" }, { "expression": { "argumentTypes": null, "id": 3570, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3565, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "6304:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3568, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3554, "src": "6336:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3566, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3299, "src": "6319:12:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3567, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "6319:16:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3569, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6319:23:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6304:38:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3571, "nodeType": "ExpressionStatement", "src": "6304:38:9" }, { "expression": { "argumentTypes": null, "id": 3581, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3572, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "6348:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3574, "indexExpression": { "argumentTypes": null, "id": 3573, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3552, "src": "6358:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6348:18:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3579, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3554, "src": "6392:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3575, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "6369:9:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3577, "indexExpression": { "argumentTypes": null, "id": 3576, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3552, "src": "6379:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6369:18:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3578, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "6369:22:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3580, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6369:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6348:50:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3582, "nodeType": "ExpressionStatement", "src": "6348:50:9" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3584, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3552, "src": "6418:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3586, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6435:1:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3585, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6427:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3587, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6427:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 3588, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3554, "src": "6439:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3583, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3289, "src": "6409:8:9", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3589, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6409:36:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3590, "nodeType": "EmitStatement", "src": "6404:41:9" } ] }, "documentation": "@dev Internal function that burns an amount of the token of a given\naccount.\n@param account The account whose tokens will be burnt.\n@param value The amount that will be burnt.", "id": 3592, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 3555, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3552, "name": "account", "nodeType": "VariableDeclaration", "scope": 3592, "src": "6220:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3551, "name": "address", "nodeType": "ElementaryTypeName", "src": "6220:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3554, "name": "value", "nodeType": "VariableDeclaration", "scope": 3592, "src": "6237:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3553, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6237:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6219:32:9" }, "returnParameters": { "id": 3556, "nodeType": "ParameterList", "parameters": [], "src": "6261:0:9" }, "scope": 3661, "src": "6205:245:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3631, "nodeType": "Block", "src": "6780:156:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3606, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3602, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3596, "src": "6794:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3604, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6813:1:9", "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": 3603, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6805:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3605, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6805:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "6794:21:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3601, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "6786:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3607, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6786:30:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3608, "nodeType": "ExpressionStatement", "src": "6786:30:9" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3614, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3610, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3594, "src": "6830:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3612, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6847:1:9", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3611, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6839:7:9", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3613, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6839:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "6830:19:9", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3609, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5912, 5913 ], "referencedDeclaration": 5912, "src": "6822:7:9", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3615, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6822:28:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3616, "nodeType": "ExpressionStatement", "src": "6822:28:9" }, { "expression": { "argumentTypes": null, "id": 3623, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3617, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "6857:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3620, "indexExpression": { "argumentTypes": null, "id": 3618, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3594, "src": "6866:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6857:15:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3621, "indexExpression": { "argumentTypes": null, "id": 3619, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3596, "src": "6873:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6857:24:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3622, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3598, "src": "6884:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6857:32:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3624, "nodeType": "ExpressionStatement", "src": "6857:32:9" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3626, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3594, "src": "6909:5:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3627, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3596, "src": "6916:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3628, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3598, "src": "6925:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3625, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3297, "src": "6900:8:9", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3629, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6900:31:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3630, "nodeType": "EmitStatement", "src": "6895:36:9" } ] }, "documentation": "@dev Approve an address to spend another addresses' tokens.\n@param owner The address that owns the tokens.\n@param spender The address that will spend the tokens.\n@param value The number of tokens that can be spent.", "id": 3632, "implemented": true, "kind": "function", "modifiers": [], "name": "_approve", "nodeType": "FunctionDefinition", "parameters": { "id": 3599, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3594, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3632, "src": "6724:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3593, "name": "address", "nodeType": "ElementaryTypeName", "src": "6724:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3596, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3632, "src": "6739:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3595, "name": "address", "nodeType": "ElementaryTypeName", "src": "6739:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3598, "name": "value", "nodeType": "VariableDeclaration", "scope": 3632, "src": "6756:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3597, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6756:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6723:47:9" }, "returnParameters": { "id": 3600, "nodeType": "ParameterList", "parameters": [], "src": "6780:0:9" }, "scope": 3661, "src": "6706:230:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3659, "nodeType": "Block", "src": "7374:109:9", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3640, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3634, "src": "7386:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3641, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3636, "src": "7395:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3639, "name": "_burn", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3592, "src": "7380:5:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3642, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7380:21:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3643, "nodeType": "ExpressionStatement", "src": "7380:21:9" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3645, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3634, "src": "7416:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3646, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "7425:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3647, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7425:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3655, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3636, "src": "7471:5:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3648, "name": "_allowed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3281, "src": "7437:8:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3650, "indexExpression": { "argumentTypes": null, "id": 3649, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3634, "src": "7446:7:9", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7437:17:9", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3653, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3651, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5909, "src": "7455:3:9", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3652, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7455:10:9", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "7437:29:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3654, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 5847, "src": "7437:33:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3656, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7437:40:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3644, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3632, "src": "7407:8:9", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3657, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7407:71:9", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3658, "nodeType": "ExpressionStatement", "src": "7407:71:9" } ] }, "documentation": "@dev Internal function that burns an amount of the token of a given\naccount, deducting from the sender's allowance for said account. Uses the\ninternal burn function.\nEmits an Approval event (reflecting the reduced allowance).\n@param account The account whose tokens will be burnt.\n@param value The amount that will be burnt.", "id": 3660, "implemented": true, "kind": "function", "modifiers": [], "name": "_burnFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 3637, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3634, "name": "account", "nodeType": "VariableDeclaration", "scope": 3660, "src": "7333:15:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3633, "name": "address", "nodeType": "ElementaryTypeName", "src": "7333:7:9", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3636, "name": "value", "nodeType": "VariableDeclaration", "scope": 3660, "src": "7350:13:9", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3635, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7350:7:9", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "7332:32:9" }, "returnParameters": { "id": 3638, "nodeType": "ParameterList", "parameters": [], "src": "7374:0:9" }, "scope": 3661, "src": "7314:169:9", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" } ], "scope": 3662, "src": "602:6883:9" } ], "src": "0:7486:9" }, "compiler": { "name": "solc", "version": "0.5.8+commit.1f148fe1.Emscripten.clang" }, "networks": {}, "schemaVersion": "2.0.1", "updatedAt": "2020-05-03T00:37:19.472Z" }