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"source": "pragma solidity ^0.8.0;\npragma abicoder v2;\n\n// SPDX-License-Identifier: GPL-3.0-only\n\nimport \"../Forwarder.sol\";\n\n// helper class for testing the forwarder.\ncontract TestForwarder {\n function callExecute(Forwarder forwarder, Forwarder.ForwardRequest memory req,\n bytes32 domainSeparator, bytes32 requestTypeHash, bytes memory suffixData, bytes memory sig) public payable {\n (bool success, bytes memory error) = forwarder.execute{value:msg.value}(req, domainSeparator, requestTypeHash, suffixData, sig);\n emit Result(success, success ? \"\" : this.decodeErrorMessage(error));\n }\n\n event Result(bool success, string error);\n\n function decodeErrorMessage(bytes calldata ret) external pure returns (string memory message) {\n //decode evert string: assume it has a standard Error(string) signature: simply skip the (selector,offset,length) fields\n if ( ret.length>4+32+32 ) {\n return abi.decode(ret[4:], (string));\n }\n //unknown buffer. return as-is\n return string(ret);\n }\n\n function getChainId() public view returns (uint256 id){\n /* solhint-disable-next-line no-inline-assembly */\n assembly { id := chainid() }\n }\n}", "sourcePath": "/Users/alexf/gsn2/packages/contracts/solpp/forwarder/test/TestForwarder.sol", "ast": { "absolutePath": "/Users/alexf/gsn2/packages/contracts/solpp/forwarder/test/TestForwarder.sol", "exportedSymbols": { "ECDSA": [ 12122 ], "ERC165": [ 12146 ], "Forwarder": [ 5036 ], "IERC165": [ 12352 ], "IForwarder": [ 5129 ], "Strings": [ 11734 ], "TestForwarder": [ 5225 ], "console": [ 20920 ] }, "id": 5226, "license": "GPL-3.0-only", "nodeType": "SourceUnit", "nodes": [ { "id": 5131, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:10" }, { "id": 5132, "literals": [ "abicoder", "v2" ], "nodeType": "PragmaDirective", "src": "24:19:10" }, { "absolutePath": "/Users/alexf/gsn2/packages/contracts/solpp/forwarder/Forwarder.sol", "file": "../Forwarder.sol", "id": 5133, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 5226, "sourceUnit": 5037, "src": "87:26:10", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "fullyImplemented": true, "id": 5225, "linearizedBaseContracts": [ 5225 ], "name": "TestForwarder", "nameLocation": "167:13:10", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 5177, "nodeType": "Block", "src": "382:221:10", "statements": [ { "assignments": [ 5151, 5153 ], "declarations": [ { "constant": false, "id": 5151, "mutability": "mutable", "name": "success", "nameLocation": "398:7:10", "nodeType": "VariableDeclaration", "scope": 5177, "src": "393:12:10", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5150, "name": "bool", "nodeType": "ElementaryTypeName", "src": "393:4:10", "typeDescriptions": { "typeIdentifier": 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