{ "contractName": "StandardToken", "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": 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": "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": "value", "type": "uint256" } ], "name": "approve", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "owner", "type": "address" }, { "name": "spender", "type": "address" } ], "name": "allowance", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "totalSupply", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "bytecode": 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"source": "pragma solidity ^0.4.15;\nimport \"../Tokens/Token.sol\";\nimport \"../Utils/Math.sol\";\n\n\n/// @title Standard token contract with overflow protection\ncontract StandardToken is Token {\n using Math for *;\n\n /*\n * Storage\n */\n mapping (address => uint) balances;\n mapping (address => mapping (address => uint)) allowances;\n uint totalTokens;\n\n /*\n * Public functions\n */\n /// @dev Transfers sender's tokens to a given address. Returns success\n /// @param to Address of token receiver\n /// @param value Number of tokens to transfer\n /// @return Was transfer successful?\n function transfer(address to, uint value)\n public\n returns (bool)\n {\n if ( !balances[msg.sender].safeToSub(value)\n || !balances[to].safeToAdd(value))\n return false;\n balances[msg.sender] -= value;\n balances[to] += value;\n Transfer(msg.sender, to, value);\n return true;\n }\n\n /// @dev Allows allowed third party to transfer tokens from one address to another. Returns success\n /// @param from Address from where tokens are withdrawn\n /// @param to Address to where tokens are sent\n /// @param value Number of tokens to transfer\n /// @return Was transfer successful?\n function transferFrom(address from, address to, uint value)\n public\n returns (bool)\n {\n if ( !balances[from].safeToSub(value)\n || !allowances[from][msg.sender].safeToSub(value)\n || !balances[to].safeToAdd(value))\n return false;\n balances[from] -= value;\n allowances[from][msg.sender] -= value;\n balances[to] += value;\n Transfer(from, to, value);\n return true;\n }\n\n /// @dev Sets approved amount of tokens for spender. Returns success\n /// @param spender Address of allowed account\n /// @param value Number of approved tokens\n /// @return Was approval successful?\n function approve(address spender, uint value)\n public\n returns (bool)\n {\n allowances[msg.sender][spender] = value;\n Approval(msg.sender, spender, value);\n return true;\n }\n\n /// @dev Returns number of allowed tokens for given address\n /// @param owner Address of token owner\n /// @param spender Address of token spender\n /// @return Remaining allowance for spender\n function allowance(address owner, address spender)\n public\n constant\n returns (uint)\n {\n return allowances[owner][spender];\n }\n\n /// @dev Returns number of tokens owned by given address\n /// @param owner Address of token owner\n /// @return Balance of owner\n function balanceOf(address owner)\n public\n constant\n returns (uint)\n {\n return balances[owner];\n }\n\n /// @dev Returns total supply of tokens\n /// @return Total supply\n function totalSupply()\n public\n constant\n returns (uint)\n {\n return totalTokens;\n }\n}\n", "sourcePath": "@gnosis.pm/pm-contracts/contracts/Tokens/StandardToken.sol", "ast": { "absolutePath": "@gnosis.pm/pm-contracts/contracts/Tokens/StandardToken.sol", "exportedSymbols": { "StandardToken": [ 3291 ] }, "id": 3292, "nodeType": "SourceUnit", "nodes": [ { "id": 3087, "literals": [ "solidity", "^", "0.4", ".15" ], "nodeType": "PragmaDirective", "src": "0:24:13" }, { "absolutePath": "@gnosis.pm/pm-contracts/contracts/Tokens/Token.sol", "file": "../Tokens/Token.sol", "id": 3088, "nodeType": "ImportDirective", "scope": 3292, "sourceUnit": 3361, "src": "25:29:13", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@gnosis.pm/pm-contracts/contracts/Utils/Math.sol", "file": "../Utils/Math.sol", "id": 3089, "nodeType": "ImportDirective", "scope": 3292, "sourceUnit": 4612, "src": "55:27:13", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 3090, "name": "Token", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 3360, "src": "171:5:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Token_$3360", "typeString": "contract Token" } }, "id": 3091, "nodeType": "InheritanceSpecifier", "src": "171:5:13" } ], "contractDependencies": [ 3360 ], "contractKind": "contract", "documentation": "@title Standard token contract with overflow protection", "fullyImplemented": true, "id": 3291, "linearizedBaseContracts": [ 3291, 3360 ], "name": "StandardToken", "nodeType": "ContractDefinition", "nodes": [ { "id": 3093, "libraryName": { "contractScope": null, "id": 3092, "name": "Math", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4611, "src": "189:4:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Math_$4611", "typeString": "library Math" } }, "nodeType": "UsingForDirective", "src": "183:17:13", "typeName": null }, { "constant": false, "id": 3097, "name": "balances", "nodeType": "VariableDeclaration", "scope": 3291, "src": "237:34:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "typeName": { "id": 3096, "keyType": { "id": 3094, "name": "address", "nodeType": "ElementaryTypeName", "src": "246:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "237:25:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 3095, "name": "uint", "nodeType": "ElementaryTypeName", "src": "257:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3103, "name": "allowances", "nodeType": "VariableDeclaration", "scope": 3291, "src": "277:57:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" }, "typeName": { "id": 3102, "keyType": { "id": 3098, "name": "address", "nodeType": "ElementaryTypeName", "src": "286:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "277:46:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" }, "valueType": { "id": 3101, "keyType": { "id": 3099, "name": "address", "nodeType": "ElementaryTypeName", "src": "306:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "297:25:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 3100, "name": "uint", "nodeType": "ElementaryTypeName", "src": "317:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3105, "name": "totalTokens", "nodeType": "VariableDeclaration", "scope": 3291, "src": "340:16:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3104, "name": "uint", "nodeType": "ElementaryTypeName", "src": "340:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "body": { "id": 3155, "nodeType": "Block", "src": "697:266:13", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 3129, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": 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"argumentTypes": null, "id": 3115, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9180, "src": "724:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3116, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "724:10:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "715:20:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3118, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "safeToSub", "nodeType": "MemberAccess", "referencedDeclaration": 4374, "src": "715:30:13", "typeDescriptions": { "typeIdentifier": "t_function_delegatecall_view$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) view returns (bool)" } }, "id": 3120, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "715:37:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "id": 3128, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "768:30:13", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3126, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3109, "src": "792:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3122, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3097, "src": "769:8:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3124, "indexExpression": { "argumentTypes": null, "id": 3123, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3107, "src": "778:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "769:12:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3125, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "safeToAdd", "nodeType": "MemberAccess", "referencedDeclaration": 4360, "src": "769:22:13", "typeDescriptions": { "typeIdentifier": "t_function_delegatecall_view$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) view returns (bool)" } }, "id": 3127, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "769:29:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "714:84:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 3132, "nodeType": "IfStatement", "src": "707:117:13", "trueBody": { "expression": { "argumentTypes": null, "hexValue": "66616c7365", "id": 3130, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "819:5:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 3113, "id": 3131, "nodeType": "Return", "src": "812:12:13" } }, { "expression": { "argumentTypes": null, "id": 3138, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3133, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3097, "src": "834:8:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3136, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3134, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9180, "src": "843:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3135, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "843:10:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "834:20:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "argumentTypes": null, "id": 3137, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3109, "src": "858:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "834:29:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3139, "nodeType": "ExpressionStatement", "src": "834:29:13" }, { "expression": { "argumentTypes": null, "id": 3144, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3140, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3097, "src": "873:8:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3142, "indexExpression": { "argumentTypes": null, "id": 3141, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3107, "src": "882:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "873:12:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "id": 3143, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3109, "src": "889:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "873:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3145, "nodeType": "ExpressionStatement", "src": "873:21:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3147, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9180, "src": "913:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3148, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "913:10:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3149, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3107, "src": "925:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3150, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3109, "src": "929:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3146, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3301, "src": "904:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3151, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "904:31:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3152, "nodeType": "ExpressionStatement", "src": "904:31:13" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3153, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "952:4:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 3113, "id": 3154, "nodeType": "Return", "src": "945:11:13" } ] }, "documentation": "@dev Transfers sender's tokens to a given address. Returns success\n @param to Address of token receiver\n @param value Number of tokens to transfer\n @return Was transfer successful?", "id": 3156, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "transfer", "nodeType": "FunctionDefinition", "parameters": { "id": 3110, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3107, "name": "to", "nodeType": "VariableDeclaration", "scope": 3156, "src": "631:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3106, "name": "address", "nodeType": "ElementaryTypeName", "src": "631:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3109, "name": "value", "nodeType": "VariableDeclaration", "scope": 3156, "src": "643:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3108, "name": "uint", "nodeType": "ElementaryTypeName", "src": "643:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "630:24:13" }, "payable": false, "returnParameters": { "id": 3113, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3112, "name": "", "nodeType": "VariableDeclaration", "scope": 3156, "src": "687:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3111, "name": "bool", "nodeType": "ElementaryTypeName", "src": "687:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "686:6:13" }, "scope": 3291, "src": "613:350:13", "stateMutability": "nonpayable", "superFunction": 3318, "visibility": "public" }, { "body": { "id": 3225, "nodeType": "Block", "src": "1377:357:13", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 3192, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 3184, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3173, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "1394:32:13", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3171, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3162, "src": "1420:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3167, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3097, "src": "1395:8:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3169, "indexExpression": { "argumentTypes": null, "id": 3168, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3158, "src": "1404:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1395:14:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3170, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "safeToSub", "nodeType": "MemberAccess", "referencedDeclaration": 4374, "src": "1395:24:13", "typeDescriptions": { "typeIdentifier": "t_function_delegatecall_view$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) view returns (bool)" } }, "id": 3172, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1395:31:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "id": 3183, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "1442:46:13", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3181, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3162, "src": "1482:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3174, "name": "allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3103, "src": "1443:10:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3176, "indexExpression": { "argumentTypes": null, "id": 3175, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3158, "src": "1454:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1443:16:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3179, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3177, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9180, "src": "1460:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3178, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1460:10:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1443:28:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3180, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "safeToSub", "nodeType": "MemberAccess", "referencedDeclaration": 4374, "src": "1443:38:13", "typeDescriptions": { "typeIdentifier": "t_function_delegatecall_view$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) view returns (bool)" } }, "id": 3182, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1443:45:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1394:94:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "id": 3191, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "1504:30:13", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3189, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3162, "src": "1528:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3185, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3097, "src": "1505:8:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3187, "indexExpression": { "argumentTypes": null, "id": 3186, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3160, "src": "1514:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1505:12:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3188, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "safeToAdd", "nodeType": "MemberAccess", "referencedDeclaration": 4360, "src": "1505:22:13", "typeDescriptions": { "typeIdentifier": "t_function_delegatecall_view$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) view returns (bool)" } }, "id": 3190, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1505:29:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1394:140:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 3195, "nodeType": "IfStatement", "src": "1387:173:13", "trueBody": { "expression": { "argumentTypes": null, "hexValue": "66616c7365", "id": 3193, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "1555:5:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 3166, "id": 3194, "nodeType": "Return", "src": "1548:12:13" } }, { "expression": { "argumentTypes": null, "id": 3200, "isConstant": 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Returns success\n @param spender Address of allowed account\n @param value Number of approved tokens\n @return Was approval successful?", "id": 3254, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 3231, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3228, "name": "spender", "nodeType": "VariableDeclaration", "scope": 3254, "src": "1968:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3227, "name": "address", "nodeType": "ElementaryTypeName", "src": "1968:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3230, "name": "value", "nodeType": "VariableDeclaration", "scope": 3254, "src": "1985:10:13", "stateVariable": false, 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"referencedDeclaration": 3158, "src": "1454:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1443:16:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3179, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3177, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9180, "src": "1460:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3178, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1460:10:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": 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"t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3187, "indexExpression": { "argumentTypes": null, "id": 3186, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3160, "src": "1514:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1505:12:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3188, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "safeToAdd", "nodeType": "MemberAccess", "referencedDeclaration": 4360, "src": "1505:22:13", "typeDescriptions": { "typeIdentifier": "t_function_delegatecall_view$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) view returns (bool)" } }, "id": 3190, "isConstant": 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"name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3162, "src": "1588:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1570:23:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3201, "nodeType": "ExpressionStatement", "src": "1570:23:13" }, { "expression": { "argumentTypes": null, "id": 3209, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3202, "name": "allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3103, "src": "1603:10:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 3206, "indexExpression": { 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null, "id": 3211, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3097, "src": "1650:8:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3213, "indexExpression": { "argumentTypes": null, "id": 3212, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3160, "src": "1659:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1650:12:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "id": 3214, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3162, "src": "1666:5:13", "typeDescriptions": { 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"uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3217, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3301, "src": "1681:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3221, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1681:25:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3222, "nodeType": "ExpressionStatement", "src": "1681:25:13" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 3223, "isConstant": false, "isLValue": false, 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Returns success\n @param from Address from where tokens are withdrawn\n @param to Address to where tokens are sent\n @param value Number of tokens to transfer\n @return Was transfer successful?", "id": 3226, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 3163, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3158, "name": "from", "nodeType": "VariableDeclaration", "scope": 3226, "src": "1297:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3157, "name": "address", "nodeType": "ElementaryTypeName", "src": "1297:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3160, "name": "to", "nodeType": "VariableDeclaration", "scope": 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false, "id": 3165, "name": "", "nodeType": "VariableDeclaration", "scope": 3226, "src": "1367:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3164, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1367:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "1366:6:13" }, "scope": 3291, "src": "1275:459:13", "stateMutability": "nonpayable", "superFunction": 3329, "visibility": "public" }, { "body": { "id": 3253, "nodeType": "Block", "src": "2039:123:13", "statements": [ { "expression": { "argumentTypes": null, "id": 3242, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3235, "name": "allowances", "nodeType": "Identifier", 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"typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 3240, "indexExpression": { "argumentTypes": null, "id": 3238, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3228, "src": "2072:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "2049:31:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3241, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3230, "src": "2083:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2049:39:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3243, "nodeType": "ExpressionStatement", "src": "2049:39:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3245, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9180, "src": "2107:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 3246, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2107:10:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3247, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3228, "src": "2119:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3248, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3230, "src": "2128:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3244, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3309, "src": "2098:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 3249, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2098:36:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3250, "nodeType": 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