{ "fileName": "Context.sol", "contractName": "Context", "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\n\n/*\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with GSN meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address payable) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes memory) {\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n return msg.data;\n }\n}\n", "sourcePath": "contracts/GSN/Context.sol", "sourceMap": "", "deployedSourceMap": "", "abi": [], "ast": { "absolutePath": "contracts/GSN/Context.sol", "exportedSymbols": { "Context": [ 22 ] }, "id": 23, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 1, "literals": [ "solidity", "^", "0.7", ".0" ], "nodeType": "PragmaDirective", "src": "33:23:0" }, { "abstract": true, "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 22, "linearizedBaseContracts": [ 22 ], "name": "Context", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 9, "nodeType": "Block", "src": "660:34:0", "statements": [ { "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "677:3:0", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 7, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "677:10:0", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "functionReturnParameters": 5, "id": 8, "nodeType": "Return", "src": "670:17:0" } ] }, "documentation": null, "id": 10, "implemented": true, "kind": "function", "modifiers": [], "name": "_msgSender", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2, "nodeType": "ParameterList", "parameters": [], "src": "609:2:0" }, "returnParameters": { "id": 5, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 10, "src": "643:15:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 3, "name": "address", "nodeType": "ElementaryTypeName", "src": "643:15:0", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "value": null, "visibility": "internal" } ], "src": "642:17:0" }, "scope": 22, "src": "590:104:0", "stateMutability": "view", "virtual": true, "visibility": "internal" }, { "body": { "id": 20, "nodeType": "Block", "src": "765:165:0", "statements": [ { "expression": { "argumentTypes": null, "id": 15, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "775:4:0", "typeDescriptions": { "typeIdentifier": "t_contract$_Context_$22", "typeString": "contract Context" } }, "id": 16, "nodeType": "ExpressionStatement", "src": "775:4:0" }, { "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 17, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "915:3:0", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 18, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "data", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "915:8:0", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } }, "functionReturnParameters": 14, "id": 19, "nodeType": "Return", "src": "908:15:0" } ] }, "documentation": null, "id": 21, "implemented": true, "kind": "function", "modifiers": [], "name": "_msgData", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 11, "nodeType": "ParameterList", "parameters": [], "src": "717:2:0" }, "returnParameters": { "id": 14, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 13, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 21, "src": "751:12:0", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "751:5:0", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "750:14:0" }, "scope": 22, "src": "700:230:0", "stateMutability": "view", "virtual": true, "visibility": "internal" } ], "scope": 23, "src": "558:374:0" } ], "src": "33:900:0" }, "bytecode": "0x", "deployedBytecode": "0x", "compiler": { "name": "solc", "version": "0.7.0+commit.9e61f92b.Emscripten.clang", "optimizer": { "enabled": false, "runs": 200 }, "evmVersion": "petersburg" } }