{
  "absolutePath": "a",
  "id": 40,
  "nodeType": "SourceUnit",
  "nodes":
  [
    {
      "abstract": false,
      "baseContracts": [],
      "contractDependencies": [],
      "contractKind": "contract",
      "id": 39,
      "name": "C",
      "nodeType": "ContractDefinition",
      "nodes":
      [
        {
          "constant": false,
          "id": 4,
          "mutability": "mutable",
          "name": "m",
          "nodeType": "VariableDeclaration",
          "src": "17:44:1",
          "stateVariable": false,
          "storageLocation": "default",
          "typeDescriptions": {},
          "typeName":
          {
            "id": 3,
            "keyType":
            {
              "id": 1,
              "name": "address",
              "nodeType": "ElementaryTypeName",
              "src": "25:7:1",
              "typeDescriptions": {}
            },
            "nodeType": "Mapping",
            "src": "17:35:1",
            "typeDescriptions": {},
            "valueType":
            {
              "id": 2,
              "name": "address",
              "nodeType": "ElementaryTypeName",
              "src": "36:15:1",
              "stateMutability": "payable",
              "typeDescriptions": {}
            }
          },
          "visibility": "public"
        },
        {
          "body":
          {
            "id": 37,
            "nodeType": "Block",
            "src": "134:122:1",
            "statements":
            [
              {
                "assignments":
                [
                  12
                ],
                "declarations":
                [
                  {
                    "constant": false,
                    "id": 12,
                    "mutability": "mutable",
                    "name": "a",
                    "nodeType": "VariableDeclaration",
                    "src": "144:17:1",
                    "stateVariable": false,
                    "storageLocation": "default",
                    "typeDescriptions": {},
                    "typeName":
                    {
                      "id": 11,
                      "name": "address",
                      "nodeType": "ElementaryTypeName",
                      "src": "144:15:1",
                      "stateMutability": "payable",
                      "typeDescriptions": {}
                    },
                    "visibility": "internal"
                  }
                ],
                "id": 16,
                "initialValue":
                {
                  "baseExpression":
                  {
                    "id": 13,
                    "name": "m",
                    "nodeType": "Identifier",
                    "overloadedDeclarations": [],
                    "src": "164:1:1",
                    "typeDescriptions": {}
                  },
                  "id": 15,
                  "indexExpression":
                  {
                    "id": 14,
                    "name": "arg",
                    "nodeType": "Identifier",
                    "overloadedDeclarations": [],
                    "src": "166:3:1",
                    "typeDescriptions": {}
                  },
                  "nodeType": "IndexAccess",
                  "src": "164:6:1",
                  "typeDescriptions": {}
                },
                "nodeType": "VariableDeclarationStatement",
                "src": "144:26:1"
              },
              {
                "expression":
                {
                  "id": 19,
                  "leftHandSide":
                  {
                    "id": 17,
                    "name": "r",
                    "nodeType": "Identifier",
                    "overloadedDeclarations": [],
                    "src": "180:1:1",
                    "typeDescriptions": {}
                  },
                  "nodeType": "Assignment",
                  "operator": "=",
                  "rightHandSide":
                  {
                    "id": 18,
                    "name": "arg",
                    "nodeType": "Identifier",
                    "overloadedDeclarations": [],
                    "src": "184:3:1",
                    "typeDescriptions": {}
                  },
                  "src": "180:7:1",
                  "typeDescriptions": {}
                },
                "id": 20,
                "nodeType": "ExpressionStatement",
                "src": "180:7:1"
              },
              {
                "assignments":
                [
                  22
                ],
                "declarations":
                [
                  {
                    "constant": false,
                    "id": 22,
                    "mutability": "mutable",
                    "name": "c",
                    "nodeType": "VariableDeclaration",
                    "src": "197:9:1",
                    "stateVariable": false,
                    "storageLocation": "default",
                    "typeDescriptions": {},
                    "typeName":
                    {
                      "id": 21,
                      "name": "address",
                      "nodeType": "ElementaryTypeName",
                      "src": "197:7:1",
                      "stateMutability": "nonpayable",
                      "typeDescriptions": {}
                    },
                    "visibility": "internal"
                  }
                ],
                "id": 27,
                "initialValue":
                {
                  "arguments":
                  [
                    {
                      "id": 25,
                      "name": "this",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "src": "217:4:1",
                      "typeDescriptions": {}
                    }
                  ],
                  "expression":
                  {
                    "id": 24,
                    "nodeType": "ElementaryTypeNameExpression",
                    "src": "209:7:1",
                    "typeDescriptions": {},
                    "typeName":
                    {
                      "id": 23,
                      "name": "address",
                      "nodeType": "ElementaryTypeName",
                      "src": "209:7:1",
                      "typeDescriptions": {}
                    }
                  },
                  "id": 26,
                  "names": [],
                  "nodeType": "FunctionCall",
                  "src": "209:13:1",
                  "tryCall": false,
                  "typeDescriptions": {}
                },
                "nodeType": "VariableDeclarationStatement",
                "src": "197:25:1"
              },
              {
                "expression":
                {
                  "id": 35,
                  "leftHandSide":
                  {
                    "baseExpression":
                    {
                      "id": 28,
                      "name": "m",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "src": "232:1:1",
                      "typeDescriptions": {}
                    },
                    "id": 30,
                    "indexExpression":
                    {
                      "id": 29,
                      "name": "c",
                      "nodeType": "Identifier",
                      "overloadedDeclarations": [],
                      "src": "234:1:1",
                      "typeDescriptions": {}
                    },
                    "nodeType": "IndexAccess",
                    "src": "232:4:1",
                    "typeDescriptions": {}
                  },
                  "nodeType": "Assignment",
                  "operator": "=",
                  "rightHandSide":
                  {
                    "arguments":
                    [
                      {
                        "hexValue": "30",
                        "id": 33,
                        "kind": "number",
                        "nodeType": "Literal",
                        "src": "247:1:1",
                        "typeDescriptions": {},
                        "value": "0"
                      }
                    ],
                    "expression":
                    {
                      "id": 32,
                      "nodeType": "ElementaryTypeNameExpression",
                      "src": "239:7:1",
                      "typeDescriptions": {},
                      "typeName":
                      {
                        "id": 31,
                        "name": "address",
                        "nodeType": "ElementaryTypeName",
                        "src": "239:7:1",
                        "typeDescriptions": {}
                      }
                    },
                    "id": 34,
                    "names": [],
                    "nodeType": "FunctionCall",
                    "src": "239:10:1",
                    "tryCall": false,
                    "typeDescriptions": {}
                  },
                  "src": "232:17:1",
                  "typeDescriptions": {}
                },
                "id": 36,
                "nodeType": "ExpressionStatement",
                "src": "232:17:1"
              }
            ]
          },
          "id": 38,
          "implemented": true,
          "kind": "function",
          "modifiers": [],
          "name": "f",
          "nodeType": "FunctionDefinition",
          "parameters":
          {
            "id": 7,
            "nodeType": "ParameterList",
            "parameters":
            [
              {
                "constant": false,
                "id": 6,
                "mutability": "mutable",
                "name": "arg",
                "nodeType": "VariableDeclaration",
                "src": "78:19:1",
                "stateVariable": false,
                "storageLocation": "default",
                "typeDescriptions": {},
                "typeName":
                {
                  "id": 5,
                  "name": "address",
                  "nodeType": "ElementaryTypeName",
                  "src": "78:15:1",
                  "stateMutability": "payable",
                  "typeDescriptions": {}
                },
                "visibility": "internal"
              }
            ],
            "src": "77:21:1"
          },
          "returnParameters":
          {
            "id": 10,
            "nodeType": "ParameterList",
            "parameters":
            [
              {
                "constant": false,
                "id": 9,
                "mutability": "mutable",
                "name": "r",
                "nodeType": "VariableDeclaration",
                "src": "115:17:1",
                "stateVariable": false,
                "storageLocation": "default",
                "typeDescriptions": {},
                "typeName":
                {
                  "id": 8,
                  "name": "address",
                  "nodeType": "ElementaryTypeName",
                  "src": "115:15:1",
                  "stateMutability": "payable",
                  "typeDescriptions": {}
                },
                "visibility": "internal"
              }
            ],
            "src": "114:19:1"
          },
          "src": "67:189:1",
          "stateMutability": "nonpayable",
          "virtual": false,
          "visibility": "public"
        }
      ],
      "src": "0:258:1"
    }
  ],
  "src": "0:259:1"
}