{ "contractName": "GnosisStandardToken", "abi": [ { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "owner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "spender", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "from", "type": "address" }, { "indexed": true, "internalType": "address", "name": "to", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "inputs": [ { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "transfer", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "transferFrom", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "approve", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "spender", "type": "address" } ], "name": "allowance", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "totalSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" } ], "metadata": 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Returns success\",\"params\":{\"from\":\"Address from where tokens are withdrawn\",\"to\":\"Address to where tokens are sent\",\"value\":\"Number of tokens to transfer\"},\"returns\":{\"_0\":\"Was transfer successful?\"}}},\"title\":\"Standard token contract with overflow 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"source": "// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity ^0.7.0;\nimport \"./Token.sol\";\nimport \"./Math.sol\";\nimport \"./Proxy.sol\";\n\n/**\n * Deprecated: Use Open Zeppeling one instead\n */\ncontract StandardTokenData {\n /*\n * Storage\n */\n mapping(address => uint) balances;\n mapping(address => mapping(address => uint)) allowances;\n uint totalTokens;\n}\n\n/**\n * Deprecated: Use Open Zeppeling one instead\n */\n/// @title Standard token contract with overflow protection\ncontract GnosisStandardToken is Token, StandardTokenData {\n using GnosisMath for *;\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) public override returns (bool) {\n if (!balances[msg.sender].safeToSub(value) || !balances[to].safeToAdd(value)) {\n return false;\n }\n\n balances[msg.sender] -= value;\n balances[to] += value;\n emit 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) public override returns (bool) {\n if (!balances[from].safeToSub(value) || !allowances[from][msg.sender].safeToSub(\n value\n ) || !balances[to].safeToAdd(value)) {\n return false;\n }\n balances[from] -= value;\n allowances[from][msg.sender] -= value;\n balances[to] += value;\n emit 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) public override returns (bool) {\n allowances[msg.sender][spender] = value;\n emit 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) public override view returns (uint) {\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) public override view returns (uint) {\n return balances[owner];\n }\n\n /// @dev Returns total supply of tokens\n /// @return Total supply\n function totalSupply() public override view returns (uint) {\n return totalTokens;\n }\n}\n", "sourcePath": "/Users/bensniff/Projects/gnosis/util-contracts/contracts/GnosisStandardToken.sol", "ast": { "absolutePath": "/Users/bensniff/Projects/gnosis/util-contracts/contracts/GnosisStandardToken.sol", "exportedSymbols": { "GnosisMath": [ 1553 ], "GnosisStandardToken": [ 330 ], "Proxied": [ 1616 ], "Proxy": [ 1667 ], "StandardTokenData": [ 123 ], "Token": [ 1903 ] }, "id": 331, "license": "LGPL-3.0-only", "nodeType": "SourceUnit", "nodes": [ { "id": 106, "literals": [ "solidity", "^", "0.7", ".0" ], "nodeType": "PragmaDirective", "src": "42:23:1" }, { "absolutePath": "/Users/bensniff/Projects/gnosis/util-contracts/contracts/Token.sol", "file": "./Token.sol", "id": 107, "nodeType": "ImportDirective", "scope": 331, "sourceUnit": 1904, "src": "66:21:1", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/bensniff/Projects/gnosis/util-contracts/contracts/Math.sol", "file": "./Math.sol", "id": 108, "nodeType": "ImportDirective", "scope": 331, "sourceUnit": 1554, "src": "88:20:1", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/bensniff/Projects/gnosis/util-contracts/contracts/Proxy.sol", "file": "./Proxy.sol", "id": 109, "nodeType": "ImportDirective", "scope": 331, "sourceUnit": 1668, "src": "109:21:1", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": { "id": 110, "nodeType": "StructuredDocumentation", "src": "132:53:1", "text": " Deprecated: Use Open Zeppeling one instead" }, "fullyImplemented": true, "id": 123, "linearizedBaseContracts": [ 123 ], "name": "StandardTokenData", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 114, "mutability": "mutable", "name": "balances", "nodeType": "VariableDeclaration", "scope": 123, "src": "250:33:1", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": 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"IndexAccess", "src": "1695:12:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 218, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "safeToAdd", "nodeType": "MemberAccess", "referencedDeclaration": 1291, "src": "1695:22:1", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (bool)" } }, "id": 220, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1695:29:1", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1586:138:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 226, "nodeType": "IfStatement", "src": "1582:181:1", "trueBody": { "id": 225, "nodeType": "Block", "src": "1726:37:1", "statements": [ { "expression": { "hexValue": "66616c7365", "id": 223, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "1747:5:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 196, "id": 224, "nodeType": "Return", "src": "1740:12:1" } ] } }, { "expression": { "id": 231, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 227, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 114, "src": "1772:8:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 229, "indexExpression": { "id": 228, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 187, "src": "1781:4:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1772:14:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "id": 230, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 191, "src": "1790:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1772:23:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 232, "nodeType": "ExpressionStatement", "src": "1772:23:1" }, { "expression": { "id": 240, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "baseExpression": { "id": 233, "name": "allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 120, "src": "1805:10:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 237, "indexExpression": { "id": 234, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 187, "src": "1816:4:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1805:16:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 238, "indexExpression": { "expression": { "id": 235, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "1822:3:1", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 236, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "src": "1822:10:1", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1805:28:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "id": 239, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 191, "src": "1837:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1805:37:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 241, "nodeType": "ExpressionStatement", "src": "1805:37:1" }, { "expression": { "id": 246, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 242, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 114, "src": "1852:8:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 244, "indexExpression": { "id": 243, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 189, "src": "1861:2:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1852:12:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "id": 245, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 191, "src": "1868:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1852:21:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 247, "nodeType": "ExpressionStatement", "src": "1852:21:1" }, { "eventCall": { "arguments": [ { "id": 249, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 187, "src": "1897:4:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 250, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 189, "src": "1903:2:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 251, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 191, "src": "1907:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 248, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1844, "src": "1888:8:1", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 252, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1888:25:1", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 253, "nodeType": "EmitStatement", "src": "1883:30:1" }, { "expression": { "hexValue": "74727565", "id": 254, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "1930:4:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 196, "id": 255, "nodeType": "Return", "src": "1923:11:1" } ] }, "documentation": { "id": 185, "nodeType": "StructuredDocumentation", "src": "1175:301:1", "text": "@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?" }, "functionSelector": "23b872dd", "id": 257, "implemented": true, "kind": "function", "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "overrides": { "id": 193, "nodeType": "OverrideSpecifier", "overrides": [], "src": "1548:8:1" }, "parameters": { "id": 192, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 187, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "scope": 257, "src": "1503:12:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 186, "name": "address", "nodeType": "ElementaryTypeName", "src": "1503:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 189, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "scope": 257, "src": "1517:10:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 188, "name": "address", "nodeType": "ElementaryTypeName", "src": "1517:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 191, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "scope": 257, "src": "1529:10:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 190, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1529:4:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1502:38:1" }, "returnParameters": { "id": 196, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 195, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 257, "src": "1566:4:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 194, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1566:4:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "1565:6:1" }, "scope": 330, "src": "1481:460:1", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 1881 ], "body": { "id": 286, "nodeType": "Block", "src": "2235:128:1", "statements": [ { "expression": { "id": 275, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "baseExpression": { "id": 268, "name": "allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 120, "src": "2245:10:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 272, "indexExpression": { "expression": { "id": 269, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "2256:3:1", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 270, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "src": "2256:10:1", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2245:22:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 273, "indexExpression": { "id": 271, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 260, "src": "2268:7:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "2245:31:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 274, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 262, "src": "2279:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2245:39:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 276, "nodeType": "ExpressionStatement", "src": "2245:39:1" }, { "eventCall": { "arguments": [ { "expression": { "id": 278, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "2308:3:1", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 279, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "src": "2308:10:1", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "id": 280, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 260, "src": "2320:7:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 281, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 262, "src": "2329:5:1", "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": 277, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1852, "src": "2299:8:1", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 282, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2299:36:1", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 283, "nodeType": "EmitStatement", "src": "2294:41:1" }, { "expression": { "hexValue": "74727565", "id": 284, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "2352:4:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 267, "id": 285, "nodeType": "Return", "src": "2345:11:1" } ] }, "documentation": { "id": 258, "nodeType": "StructuredDocumentation", "src": "1947:206:1", "text": "@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?" }, "functionSelector": "095ea7b3", "id": 287, "implemented": true, "kind": "function", "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "overrides": { "id": 264, "nodeType": "OverrideSpecifier", "overrides": [], "src": "2211:8:1" }, "parameters": { "id": 263, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 260, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "scope": 287, "src": "2175:15:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 259, "name": "address", "nodeType": "ElementaryTypeName", "src": "2175:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 262, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "scope": 287, "src": "2192:10:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 261, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2192:4:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2174:29:1" }, "returnParameters": { "id": 267, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 266, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 287, "src": "2229:4:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 265, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2229:4:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "2228:6:1" }, "scope": 330, "src": "2158:205:1", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 1897 ], "body": { "id": 304, "nodeType": "Block", "src": "2660:50:1", "statements": [ { "expression": { "baseExpression": { "baseExpression": { "id": 298, "name": "allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 120, "src": "2677:10:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 300, "indexExpression": { "id": 299, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 290, "src": "2688:5:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2677:17:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 302, "indexExpression": { "id": 301, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 292, "src": "2695:7:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2677:26:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 297, "id": 303, "nodeType": "Return", "src": "2670:33:1" } ] }, "documentation": { "id": 288, "nodeType": "StructuredDocumentation", "src": "2369:199:1", "text": "@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" }, "functionSelector": "dd62ed3e", "id": 305, "implemented": true, "kind": "function", "modifiers": [], "name": "allowance", "nodeType": "FunctionDefinition", "overrides": { "id": 294, "nodeType": "OverrideSpecifier", "overrides": [], "src": "2631:8:1" }, "parameters": { "id": 293, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 290, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "scope": 305, "src": "2592:13:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 289, "name": "address", "nodeType": "ElementaryTypeName", "src": "2592:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 292, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "scope": 305, "src": "2607:15:1", "stateVariable": false, 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"stateMutability": "view", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 1888 ], "body": { "id": 318, "nodeType": "Block", "src": "2924:39:1", "statements": [ { "expression": { "baseExpression": { "id": 314, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 114, "src": "2941:8:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 316, "indexExpression": { "id": 315, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 308, "src": "2950:5:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2941:15:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 313, "id": 317, "nodeType": 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false, "lValueRequested": false, "memberName": "safeToSub", "nodeType": "MemberAccess", "referencedDeclaration": 1306, "src": "1587:24:1", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (bool)" } }, "id": 202, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1587:31:1", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "id": 213, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "1622:68:1", "subExpression": { "arguments": [ { "id": 211, "name": "value", 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"name": "allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 120, "src": "1805:10:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 237, "indexExpression": { "id": 234, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 187, "src": "1816:4:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1805:16:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 238, "indexExpression": { "expression": { "id": 235, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "1822:3:1", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 236, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "src": "1822:10:1", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1805:28:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "id": 239, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 191, "src": "1837:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1805:37:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 241, "nodeType": "ExpressionStatement", "src": "1805:37:1" }, { "expression": { "id": 246, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 242, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 114, "src": "1852:8:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 244, "indexExpression": { "id": 243, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 189, "src": "1861:2:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1852:12:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "id": 245, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 191, "src": "1868:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1852:21:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 247, "nodeType": "ExpressionStatement", "src": "1852:21:1" }, { "eventCall": { "arguments": [ { "id": 249, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 187, "src": "1897:4:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 250, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 189, "src": "1903:2:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 251, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 191, "src": "1907:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 248, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1844, "src": "1888:8:1", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 252, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1888:25:1", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 253, "nodeType": "EmitStatement", "src": "1883:30:1" }, { "expression": { "hexValue": "74727565", "id": 254, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "1930:4:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 196, "id": 255, "nodeType": "Return", "src": "1923:11:1" } ] }, "documentation": { "id": 185, "nodeType": "StructuredDocumentation", "src": "1175:301:1", "text": "@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?" }, "functionSelector": "23b872dd", "id": 257, "implemented": true, "kind": "function", "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "overrides": { "id": 193, "nodeType": "OverrideSpecifier", "overrides": [], "src": "1548:8:1" }, "parameters": { "id": 192, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 187, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "scope": 257, "src": "1503:12:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 186, "name": "address", "nodeType": "ElementaryTypeName", "src": "1503:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 189, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "scope": 257, "src": "1517:10:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 188, "name": "address", "nodeType": "ElementaryTypeName", "src": "1517:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 191, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "scope": 257, "src": "1529:10:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 190, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1529:4:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1502:38:1" }, "returnParameters": { "id": 196, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 195, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 257, "src": "1566:4:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 194, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1566:4:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "1565:6:1" }, "scope": 330, "src": "1481:460:1", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 1881 ], "body": { "id": 286, "nodeType": "Block", "src": "2235:128:1", "statements": [ { "expression": { "id": 275, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "baseExpression": { "id": 268, "name": "allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 120, "src": "2245:10:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 272, "indexExpression": { "expression": { "id": 269, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "2256:3:1", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 270, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "src": "2256:10:1", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2245:22:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 273, "indexExpression": { "id": 271, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 260, "src": "2268:7:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "2245:31:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 274, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 262, "src": "2279:5:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2245:39:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 276, "nodeType": "ExpressionStatement", "src": "2245:39:1" }, { "eventCall": { "arguments": [ { "expression": { "id": 278, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "2308:3:1", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 279, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "src": "2308:10:1", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "id": 280, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 260, "src": "2320:7:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 281, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 262, "src": "2329:5:1", "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": 277, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1852, "src": "2299:8:1", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 282, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2299:36:1", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 283, "nodeType": "EmitStatement", "src": "2294:41:1" }, { "expression": { "hexValue": "74727565", "id": 284, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "2352:4:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 267, "id": 285, "nodeType": "Return", "src": "2345:11:1" } ] }, "documentation": { "id": 258, "nodeType": "StructuredDocumentation", "src": "1947:206:1", "text": "@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?" }, "functionSelector": "095ea7b3", "id": 287, "implemented": true, "kind": "function", "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "overrides": { "id": 264, "nodeType": "OverrideSpecifier", "overrides": [], "src": "2211:8:1" }, "parameters": { "id": 263, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 260, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "scope": 287, "src": "2175:15:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 259, "name": "address", "nodeType": "ElementaryTypeName", "src": "2175:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 262, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "scope": 287, "src": "2192:10:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 261, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2192:4:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2174:29:1" }, "returnParameters": { "id": 267, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 266, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 287, "src": "2229:4:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 265, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2229:4:1", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } 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"src": "2677:17:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 302, "indexExpression": { "id": 301, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 292, "src": "2695:7:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2677:26:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 297, "id": 303, "nodeType": "Return", "src": "2670:33:1" } ] }, "documentation": { "id": 288, "nodeType": "StructuredDocumentation", "src": "2369:199:1", "text": "@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" }, "functionSelector": "dd62ed3e", "id": 305, "implemented": true, "kind": "function", "modifiers": [], "name": "allowance", "nodeType": "FunctionDefinition", "overrides": { "id": 294, "nodeType": "OverrideSpecifier", "overrides": [], "src": "2631:8:1" }, "parameters": { "id": 293, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 290, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "scope": 305, "src": "2592:13:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 289, "name": "address", "nodeType": "ElementaryTypeName", "src": "2592:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 292, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "scope": 305, "src": "2607:15:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 291, "name": "address", "nodeType": "ElementaryTypeName", "src": "2607:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "2591:32:1" }, "returnParameters": { "id": 297, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 296, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 305, "src": "2654:4:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 295, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2654:4:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2653:6:1" }, "scope": 330, "src": "2573:137:1", "stateMutability": "view", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 1888 ], "body": { "id": 318, "nodeType": "Block", "src": "2924:39:1", "statements": [ { "expression": { "baseExpression": { "id": 314, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 114, "src": "2941:8:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 316, "indexExpression": { "id": 315, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 308, "src": "2950:5:1", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2941:15:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 313, "id": 317, "nodeType": "Return", "src": "2934:22:1" } ] }, "documentation": { "id": 306, "nodeType": "StructuredDocumentation", "src": "2716:133:1", "text": "@dev Returns number of tokens owned by given address\n @param owner Address of token owner\n @return Balance of owner" }, "functionSelector": "70a08231", "id": 319, "implemented": true, "kind": "function", "modifiers": [], "name": "balanceOf", "nodeType": "FunctionDefinition", "overrides": { "id": 310, "nodeType": "OverrideSpecifier", "overrides": [], "src": "2895:8:1" }, "parameters": { "id": 309, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 308, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "scope": 319, "src": "2873:13:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 307, "name": "address", "nodeType": "ElementaryTypeName", "src": "2873:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "2872:15:1" }, "returnParameters": { "id": 313, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 312, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 319, "src": "2918:4:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 311, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2918:4:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2917:6:1" }, "scope": 330, "src": "2854:109:1", "stateMutability": "view", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 1902 ], "body": { "id": 328, "nodeType": "Block", "src": "3101:35:1", "statements": [ { "expression": { "id": 326, "name": "totalTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 122, "src": "3118:11:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 325, "id": 327, "nodeType": "Return", "src": "3111:18:1" } ] }, "documentation": { "id": 320, "nodeType": "StructuredDocumentation", "src": "2969:68:1", "text": "@dev Returns total supply of tokens\n @return Total supply" }, "functionSelector": "18160ddd", "id": 329, "implemented": true, "kind": "function", "modifiers": [], "name": "totalSupply", "nodeType": "FunctionDefinition", "overrides": { "id": 322, "nodeType": "OverrideSpecifier", "overrides": [], "src": "3072:8:1" }, "parameters": { "id": 321, "nodeType": "ParameterList", "parameters": [], "src": "3062:2:1" }, "returnParameters": { "id": 325, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 324, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 329, "src": "3095:4:1", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 323, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3095:4:1", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "3094:6:1" }, "scope": 330, "src": "3042:94:1", "stateMutability": "view", "virtual": false, "visibility": "public" } ], "scope": 331, "src": "485:2653:1" } ], "src": "42:3097:1" }, "compiler": { "name": "solc", "version": "0.7.5+commit.eb77ed08.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.3.1", "updatedAt": "2020-12-08T09:43:37.050Z", "devdoc": { "kind": "dev", "methods": { "allowance(address,address)": { "details": "Returns number of allowed tokens for given address", "params": { "owner": "Address of token owner", "spender": "Address of token spender" }, "returns": { "_0": "Remaining allowance for spender" } }, "approve(address,uint256)": { "details": "Sets approved amount of tokens for spender. Returns success", "params": { "spender": "Address of allowed account", "value": "Number of approved tokens" }, "returns": { "_0": "Was approval successful?" } }, "balanceOf(address)": { "details": "Returns number of tokens owned by given address", "params": { "owner": "Address of token owner" }, "returns": { "_0": "Balance of owner" } }, "totalSupply()": { "details": "Returns total supply of tokens", "returns": { "_0": "Total supply" } }, "transfer(address,uint256)": { "details": "Transfers sender's tokens to a given address. Returns success", "params": { "to": "Address of token receiver", "value": "Number of tokens to transfer" }, "returns": { "_0": "Was transfer successful?" } }, "transferFrom(address,address,uint256)": { "details": "Allows allowed third party to transfer tokens from one address to another. Returns success", "params": { "from": "Address from where tokens are withdrawn", "to": "Address to where tokens are sent", "value": "Number of tokens to transfer" }, "returns": { "_0": "Was transfer successful?" } } }, "title": "Standard token contract with overflow protection", "version": 1 }, "userdoc": { "kind": "user", "methods": {}, "version": 1 } }