gistfile1.txt

js> print(JSON.stringify(Reflect.parse('var a = {}; a["some thing"] = 1'),null,2))
{
  "loc": {
    "start": {
      "line": 1,
      "column": 0
    },
    "end": {
      "line": 1,
      "column": 31
    },
    "source": null
  },
  "type": "Program",
  "body": [
    {
      "loc": {
        "start": {
          "line": 1,
          "column": 0
        },
        "end": {
          "line": 1,
          "column": 10
        },
        "source": null
      },
      "type": "VariableDeclaration",
      "kind": "var",
      "declarations": [
        {
          "loc": {
            "start": {
              "line": 1,
              "column": 4
            },
            "end": {
              "line": 1,
              "column": 10
            },
            "source": null
          },
          "type": "VariableDeclarator",
          "id": {
            "loc": {
              "start": {
                "line": 1,
                "column": 4
              },
              "end": {
                "line": 1,
                "column": 10
              },
              "source": null
            },
            "type": "Identifier",
            "name": "a"
          },
          "init": {
            "loc": {
              "start": {
                "line": 1,
                "column": 8
              },
              "end": {
                "line": 1,
                "column": 10
              },
              "source": null
            },
            "type": "ObjectExpression",
            "properties": []
          }
        }
      ]
    },
    {
      "loc": {
        "start": {
          "line": 1,
          "column": 12
        },
        "end": {
          "line": 1,
          "column": 31
        },
        "source": null
      },
      "type": "ExpressionStatement",
      "expression": {
        "loc": {
          "start": {
            "line": 1,
            "column": 12
          },
          "end": {
            "line": 1,
            "column": 31
          },
          "source": null
        },
        "type": "AssignmentExpression",
        "operator": "=",
        "left": {
          "loc": {
            "start": {
              "line": 1,
              "column": 12
            },
            "end": {
              "line": 1,
              "column": 27
            },
            "source": null
          },
          "type": "MemberExpression",
          "object": {
            "loc": {
              "start": {
                "line": 1,
                "column": 12
              },
              "end": {
                "line": 1,
                "column": 13
              },
              "source": null
            },
            "type": "Identifier",
            "name": "a"
          },
          "property": {
            "loc": null,
            "type": "Identifier",
            "name": "some thing"
          },
          "computed": false
        },
        "right": {
          "loc": {
            "start": {
              "line": 1,
              "column": 30
            },
            "end": {
              "line": 1,
              "column": 31
            },
            "source": null
          },
          "type": "Literal",
          "value": 1
        }
      }
    }
  ]
}