swc/crates/swc_ecma_parser/tests/tsc/directReferenceToUndefined.json

{
  "type": "Script",
  "span": {
    "start": 0,
    "end": 36,
    "ctxt": 0
  },
  "body": [
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 0,
        "end": 17,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 4,
            "end": 16,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 4,
              "end": 5,
              "ctxt": 0
            },
            "value": "x",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 5,
                "end": 16,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 7,
                  "end": 16,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 7,
                    "end": 16,
                    "ctxt": 0
                  },
                  "value": "Undefined",
                  "optional": false
                },
                "typeParams": null
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 18,
        "end": 36,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 22,
            "end": 35,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 22,
              "end": 23,
              "ctxt": 0
            },
            "value": "y",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "Identifier",
            "span": {
              "start": 26,
              "end": 35,
              "ctxt": 0
            },
            "value": "undefined",
            "optional": false
          },
          "definite": false
        }
      ]
    }
  ],
  "interpreter": null
}