{ "contractName": "PayableWithEmit", "abi": [ { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "uint256", "name": "gasUsed", "type": "uint256" }, { "indexed": false, "internalType": "bool", "name": "success", "type": "bool" } ], "name": "GasUsed", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "address", "name": "sender", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" }, { "indexed": false, "internalType": "uint256", "name": "gasleft", "type": "uint256" } ], "name": "Received", "type": "event" }, { "inputs": [], "name": "getTrustedForwarder", "outputs": [ { "internalType": "address", "name": "forwarder", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "forwarder", "type": "address" } ], "name": "isTrustedForwarder", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "stateMutability": "payable", "type": "receive" }, { "inputs": [ { "internalType": "address payable", "name": "target", "type": "address" } ], "name": "doSend", "outputs": [], "stateMutability": "payable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.8.7+commit.e28d00a7\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"gasUsed\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bool\",\"name\":\"success\",\"type\":\"bool\"}],\"name\":\"GasUsed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"gasleft\",\"type\":\"uint256\"}],\"name\":\"Received\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address payable\",\"name\":\"target\",\"type\":\"address\"}],\"name\":\"doSend\",\"outputs\":[],\"stateMutability\":\"payable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getTrustedForwarder\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"forwarder\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"forwarder\",\"type\":\"address\"}],\"name\":\"isTrustedForwarder\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"stateMutability\":\"payable\",\"type\":\"receive\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"getTrustedForwarder()\":{\"returns\":{\"forwarder\":\"The address of the Forwarder contract that is being used.\"}},\"isTrustedForwarder(address)\":{\"params\":{\"forwarder\":\"The address of the Forwarder contract that is being used.\"},\"returns\":{\"_0\":\"isTrustedForwarder `true` if the Forwarder is trusted to forward relayed transactions by this Recipient.\"}}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{\"getTrustedForwarder()\":{\"notice\":\":warning: **Warning** :warning: The Forwarder can have a full control over your Recipient. 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"source": "pragma solidity ^0.8.0;\n\n// SPDX-License-Identifier: GPL-3.0-only\n\nimport \"@opengsn/contracts/src/ERC2771Recipient.sol\";\n\n//make sure that \"payable\" function that uses _msgSender() still works\n// (its not required to use _msgSender(), since the default function\n// will never be called through GSN, but still, if someone uses it,\n// it should work)\ncontract PayableWithEmit is ERC2771Recipient {\n\n event Received(address sender, uint256 value, uint256 gasleft);\n\n receive () external payable {\n\n emit Received(_msgSender(), msg.value, gasleft());\n }\n\n //helper: send value to another contract\n function doSend(address payable target) public payable {\n\n uint256 before = gasleft();\n // solhint-disable-next-line check-send-result\n bool success = target.send(msg.value);\n uint256 gasAfter = gasleft();\n emit GasUsed(before-gasAfter, success);\n }\n event GasUsed(uint256 gasUsed, bool success);\n}", "sourcePath": "/Users/alexf/gsn2/packages/contracts/solpp/test/PayableWithEmit.sol", "ast": { "absolutePath": "/Users/alexf/gsn2/packages/contracts/solpp/test/PayableWithEmit.sol", "exportedSymbols": { "ERC2771Recipient": [ 10045 ], "IERC2771Recipient": [ 10069 ], "PayableWithEmit": [ 6348 ] }, "id": 6349, "license": "GPL-3.0-only", "nodeType": "SourceUnit", "nodes": [ { "id": 6286, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:19" }, { "absolutePath": "@opengsn/contracts/src/ERC2771Recipient.sol", "file": "@opengsn/contracts/src/ERC2771Recipient.sol", "id": 6287, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 6349, "sourceUnit": 10046, "src": "67:53:19", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "baseName": { "id": 6288, "name": "ERC2771Recipient", "nodeType": "IdentifierPath", "referencedDeclaration": 10045, "src": "377:16:19" }, "id": 6289, "nodeType": "InheritanceSpecifier", "src": "377:16:19" } ], "contractDependencies": [], "contractKind": "contract", "fullyImplemented": true, "id": 6348, "linearizedBaseContracts": [ 6348, 10045, 10069 ], "name": "PayableWithEmit", "nameLocation": "358:15:19", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "id": 6297, "name": "Received", "nameLocation": "405:8:19", "nodeType": "EventDefinition", "parameters": { "id": 6296, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6291, "indexed": false, "mutability": "mutable", "name": "sender", "nameLocation": "422:6:19", "nodeType": "VariableDeclaration", "scope": 6297, "src": "414:14:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6290, "name": "address", "nodeType": "ElementaryTypeName", "src": "414:7:19", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 6293, "indexed": false, "mutability": "mutable", "name": "value", "nameLocation": "438:5:19", "nodeType": "VariableDeclaration", "scope": 6297, "src": "430:13:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6292, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "430:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" }, { "constant": false, "id": 6295, "indexed": false, "mutability": "mutable", "name": "gasleft", "nameLocation": "453:7:19", "nodeType": "VariableDeclaration", "scope": 6297, "src": "445:15:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6294, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "445:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "413:48:19" }, "src": "399:63:19" }, { "body": { "id": 6309, "nodeType": "Block", "src": "494:61:19", "statements": [ { "eventCall": { "arguments": [ { "arguments": [], "expression": { "argumentTypes": [], "id": 6301, "name": "_msgSender", "nodeType": "Identifier", "overloadedDeclarations": [ 10010 ], "referencedDeclaration": 10010, "src": "515:10:19", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_address_$", "typeString": "function () view returns (address)" } }, "id": 6302, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "515:12:19", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "expression": { "id": 6303, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4294967281, "src": "529:3:19", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 6304, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "value", "nodeType": "MemberAccess", "src": "529:9:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "arguments": [], "expression": { "argumentTypes": [], "id": 6305, "name": "gasleft", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4294967289, "src": "540:7:19", "typeDescriptions": { "typeIdentifier": "t_function_gasleft_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } }, "id": 6306, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "540:9:19", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 6300, "name": "Received", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6297, "src": "506:8:19", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$returns$__$", "typeString": "function (address,uint256,uint256)" } }, "id": 6307, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "506:44:19", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6308, "nodeType": "EmitStatement", "src": "501:49:19" } ] }, "id": 6310, "implemented": true, "kind": "receive", "modifiers": [], "name": "", "nameLocation": "-1:-1:-1", "nodeType": "FunctionDefinition", "parameters": { "id": 6298, "nodeType": "ParameterList", "parameters": [], "src": "474:2:19" }, "returnParameters": { "id": 6299, "nodeType": "ParameterList", "parameters": [], "src": "494:0:19" }, "scope": 6348, "src": "466:89:19", "stateMutability": "payable", "virtual": false, "visibility": "external" }, { "body": { "id": 6340, "nodeType": "Block", "src": "657:210:19", "statements": [ { "assignments": [ 6316 ], "declarations": [ { "constant": false, "id": 6316, "mutability": "mutable", "name": "before", "nameLocation": "672:6:19", "nodeType": "VariableDeclaration", "scope": 6340, "src": "664:14:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6315, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "664:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "id": 6319, "initialValue": { "arguments": [], "expression": { "argumentTypes": [], "id": 6317, "name": "gasleft", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4294967289, "src": "681:7:19", "typeDescriptions": { "typeIdentifier": "t_function_gasleft_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } }, "id": 6318, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "681:9:19", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "664:26:19" }, { "assignments": [ 6321 ], "declarations": [ { "constant": false, "id": 6321, "mutability": "mutable", "name": "success", "nameLocation": "752:7:19", "nodeType": "VariableDeclaration", "scope": 6340, "src": "747:12:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 6320, "name": "bool", "nodeType": "ElementaryTypeName", "src": "747:4:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "id": 6327, "initialValue": { "arguments": [ { "expression": { "id": 6324, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4294967281, "src": "774:3:19", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 6325, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "value", "nodeType": "MemberAccess", "src": "774:9:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "id": 6322, "name": "target", "nodeType": "Identifier", 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"ElementaryTypeName", "src": "884:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" }, { "constant": false, "id": 6345, "indexed": false, "mutability": "mutable", "name": "success", "nameLocation": "906:7:19", "nodeType": "VariableDeclaration", "scope": 6347, "src": "901:12:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 6344, "name": "bool", "nodeType": "ElementaryTypeName", "src": "901:4:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "883:31:19" }, "src": "870:45:19" } ], "scope": 6349, "src": "349:568:19", "usedErrors": [] } ], "src": "0:917:19" }, "compiler": { "name": "solc", "version": "0.8.7+commit.e28d00a7.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.1.0", "updatedAt": "2023-03-16T16:54:15.214Z", "devdoc": { "kind": "dev", "methods": { "getTrustedForwarder()": { "returns": { "forwarder": "The address of the Forwarder contract that is being used." } }, "isTrustedForwarder(address)": { "params": { "forwarder": "The address of the Forwarder contract that is being used." }, "returns": { "_0": "isTrustedForwarder `true` if the Forwarder is trusted to forward relayed transactions by this Recipient." } } }, "version": 1 }, "userdoc": { "kind": "user", "methods": { "getTrustedForwarder()": { "notice": ":warning: **Warning** :warning: The Forwarder can have a full control over your Recipient. Only trust verified Forwarder.Method is not a required method to allow Recipients to trust multiple Forwarders. Not recommended yet." }, "isTrustedForwarder(address)": { "notice": ":warning: **Warning** :warning: The Forwarder can have a full control over your Recipient. Only trust verified Forwarder." } }, "version": 1 } }