@gnosis.pm/util-contracts

{ "contractName": "EtherToken", "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": "sender", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Deposit", "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" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "receiver", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Withdrawal", "type": "event" }, { "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": "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" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "decimals", "outputs": [ { "internalType": "uint8", "name": "", "type": "uint8" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "name", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "symbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "totalSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "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": [], "name": "deposit", "outputs": [], "stateMutability": "payable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "withdraw", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "metadata": 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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\"}},\"deposit()\":{\"details\":\"Buys tokens with Ether, exchanging them 1:1\"},\"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. 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"source": "// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity ^0.7.0;\nimport \"./GnosisStandardToken.sol\";\n\n/// @title Token contract - Token exchanging Ether 1:1\n/// @author Stefan George - <stefan@gnosis.pm>\ncontract EtherToken is GnosisStandardToken {\n using GnosisMath for *;\n\n /*\n * Events\n */\n event Deposit(address indexed sender, uint value);\n event Withdrawal(address indexed receiver, uint value);\n\n /*\n * Constants\n */\n string public constant name = \"Ether Token\";\n string public constant symbol = \"ETH\";\n uint8 public constant decimals = 18;\n\n /*\n * Public functions\n */\n /// @dev Buys tokens with Ether, exchanging them 1:1\n function deposit() public payable {\n balances[msg.sender] = balances[msg.sender].add(msg.value);\n totalTokens = totalTokens.add(msg.value);\n emit Deposit(msg.sender, msg.value);\n }\n\n /// @dev Sells tokens in exchange for Ether, exchanging them 1:1\n /// @param value Number of tokens to sell\n function withdraw(uint value) public {\n // Balance covers value\n balances[msg.sender] = balances[msg.sender].sub(value);\n totalTokens = totalTokens.sub(value);\n msg.sender.transfer(value);\n emit Withdrawal(msg.sender, value);\n }\n}\n", "sourcePath": "/Users/bensniff/Projects/gnosis/util-contracts/contracts/EtherToken.sol", "ast": { "absolutePath": "/Users/bensniff/Projects/gnosis/util-contracts/contracts/EtherToken.sol", "exportedSymbols": { "EtherToken": [ 104 ], "GnosisMath": [ 1553 ], "GnosisStandardToken": [ 330 ], "Proxied": [ 1616 ], "Proxy": [ 1667 ], "StandardTokenData": [ 123 ], "Token": [ 1903 ] }, "id": 105, "license": "LGPL-3.0-only", "nodeType": "SourceUnit", "nodes": [ { "id": 1, "literals": [ "solidity", "^", "0.7", ".0" ], "nodeType": "PragmaDirective", "src": "42:23:0" }, { "absolutePath": "/Users/bensniff/Projects/gnosis/util-contracts/contracts/GnosisStandardToken.sol", "file": "./GnosisStandardToken.sol", "id": 2, "nodeType": "ImportDirective", "scope": 105, "sourceUnit": 331, "src": "66:35:0", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "baseName": { "id": 4, "name": "GnosisStandardToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 330, "src": "228:19:0", "typeDescriptions": { "typeIdentifier": "t_contract$_GnosisStandardToken_$330", "typeString": "contract GnosisStandardToken" } }, "id": 5, "nodeType": "InheritanceSpecifier", "src": "228:19:0" } ], "contractDependencies": [ 123, 330, 1903 ], "contractKind": "contract", "documentation": { "id": 3, "nodeType": "StructuredDocumentation", "src": "103:102:0", "text": "@title Token contract - Token exchanging Ether 1:1\n @author Stefan George - <stefan@gnosis.pm>" }, "fullyImplemented": true, "id": 104, "linearizedBaseContracts": [ 104, 330, 123, 1903 ], "name": "EtherToken", "nodeType": "ContractDefinition", "nodes": [ { "id": 7, "libraryName": { "id": 6, "name": "GnosisMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1553, "src": "260:10:0", "typeDescriptions": { "typeIdentifier": "t_contract$_GnosisMath_$1553", "typeString": "library GnosisMath" } }, "nodeType": "UsingForDirective", "src": "254:23:0" }, { "anonymous": false, "id": 13, "name": "Deposit", "nodeType": "EventDefinition", "parameters": { "id": 12, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 9, "indexed": true, "mutability": "mutable", "name": "sender", "nodeType": "VariableDeclaration", "scope": 13, "src": "327:22:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 8, "name": "address", "nodeType": "ElementaryTypeName", "src": "327:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 11, "indexed": false, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "scope": 13, "src": "351:10:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 10, "name": "uint", "nodeType": "ElementaryTypeName", "src": "351:4:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "326:36:0" }, "src": "313:50:0" }, { "anonymous": false, "id": 19, "name": "Withdrawal", "nodeType": "EventDefinition", "parameters": { "id": 18, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 15, "indexed": true, "mutability": "mutable", "name": "receiver", "nodeType": "VariableDeclaration", "scope": 19, "src": "385:24:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 14, "name": "address", "nodeType": "ElementaryTypeName", "src": "385:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 17, "indexed": false, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "scope": 19, "src": "411:10:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 16, "name": "uint", "nodeType": "ElementaryTypeName", "src": "411:4:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "384:38:0" }, "src": "368:55:0" }, { "constant": true, "functionSelector": "06fdde03", "id": 22, "mutability": "constant", "name": "name", "nodeType": "VariableDeclaration", "scope": 104, "src": "462:43:0", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 20, "name": "string", "nodeType": "ElementaryTypeName", "src": "462:6:0", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "hexValue": "457468657220546f6b656e", "id": 21, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "492:13:0", "typeDescriptions": { "typeIdentifier": "t_stringliteral_5183d46069fc1711f0a0e1193b8720aa63106225f6d8c86be32c7b593cbf1795", "typeString": "literal_string \"Ether Token\"" }, "value": "Ether Token" }, "visibility": "public" }, { "constant": true, "functionSelector": "95d89b41", "id": 25, "mutability": "constant", "name": "symbol", "nodeType": "VariableDeclaration", "scope": 104, "src": "511:37:0", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 23, "name": "string", "nodeType": "ElementaryTypeName", "src": "511:6:0", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "hexValue": "455448", "id": 24, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "543:5:0", "typeDescriptions": { "typeIdentifier": "t_stringliteral_aaaebeba3810b1e6b70781f14b2d72c1cb89c0b2b320c43bb67ff79f562f5ff4", "typeString": "literal_string \"ETH\"" }, "value": "ETH" }, "visibility": "public" }, { "constant": true, "functionSelector": "313ce567", "id": 28, "mutability": "constant", "name": "decimals", "nodeType": "VariableDeclaration", "scope": 104, "src": "554:35:0", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 26, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "554:5:0", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": { "hexValue": "3138", "id": 27, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "587:2:0", "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "visibility": "public" }, { "body": { "id": 61, "nodeType": "Block", "src": "727:170:0", "statements": [ { "expression": { "id": 44, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 32, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 114, "src": "737:8:0", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 35, "indexExpression": { "expression": { "id": 33, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "746:3:0", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 34, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "src": "746:10:0", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "737:20:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "arguments": [ { "expression": { "id": 41, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "785:3:0", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 42, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "value", "nodeType": "MemberAccess", "src": "785:9:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "baseExpression": { "id": 36, "name": "balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 114, "src": "760:8:0", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 39, "indexExpression": { "expression": { "id": 37, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "769:3:0", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 38, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "src": "769:10:0", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "760:20:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 40, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 1351, "src": "760:24:0", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 43, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "760:35:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "737:58:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 45, "nodeType": 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