{
  "type": "Script",
  "span": {
    "start": 79,
    "end": 511,
    "ctxt": 0
  },
  "body": [
    {
      "type": "ClassDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 93,
          "end": 94,
          "ctxt": 0
        },
        "value": "B",
        "optional": false
      },
      "declare": true,
      "span": {
        "start": 79,
        "end": 173,
        "ctxt": 0
      },
      "decorators": [],
      "body": [
        {
          "type": "ClassProperty",
          "span": {
            "start": 101,
            "end": 115,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 108,
              "end": 109,
              "ctxt": 0
            },
            "value": "a",
            "optional": false
          },
          "value": null,
          "typeAnnotation": {
            "type": "TsTypeAnnotation",
            "span": {
              "start": 109,
              "end": 114,
              "ctxt": 0
            },
            "typeAnnotation": {
              "type": "TsKeywordType",
              "span": {
                "start": 111,
                "end": 114,
                "ctxt": 0
              },
              "kind": "any"
            }
          },
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassMethod",
          "span": {
            "start": 120,
            "end": 139,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 127,
              "end": 128,
              "ctxt": 0
            },
            "value": "f",
            "optional": false
          },
          "function": {
            "params": [],
            "decorators": [],
            "span": {
              "start": 120,
              "end": 139,
              "ctxt": 0
            },
            "body": null,
            "generator": false,
            "async": false,
            "typeParameters": null,
            "returnType": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 130,
                "end": 138,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 132,
                  "end": 138,
                  "ctxt": 0
                },
                "kind": "number"
              }
            }
          },
          "kind": "method",
          "isStatic": true,
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 144,
            "end": 154,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 144,
              "end": 145,
              "ctxt": 0
            },
            "value": "a",
            "optional": false
          },
          "value": null,
          "typeAnnotation": {
            "type": "TsTypeAnnotation",
            "span": {
              "start": 145,
              "end": 153,
              "ctxt": 0
            },
            "typeAnnotation": {
              "type": "TsKeywordType",
              "span": {
                "start": 147,
                "end": 153,
                "ctxt": 0
              },
              "kind": "number"
            }
          },
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassMethod",
          "span": {
            "start": 159,
            "end": 171,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 159,
              "end": 160,
              "ctxt": 0
            },
            "value": "f",
            "optional": false
          },
          "function": {
            "params": [],
            "decorators": [],
            "span": {
              "start": 159,
              "end": 171,
              "ctxt": 0
            },
            "body": null,
            "generator": false,
            "async": false,
            "typeParameters": null,
            "returnType": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 162,
                "end": 170,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 164,
                  "end": 170,
                  "ctxt": 0
                },
                "kind": "number"
              }
            }
          },
          "kind": "method",
          "isStatic": false,
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false
        }
      ],
      "superClass": null,
      "isAbstract": false,
      "typeParams": null,
      "superTypeParams": null,
      "implements": []
    },
    {
      "type": "ClassDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 181,
          "end": 182,
          "ctxt": 0
        },
        "value": "C",
        "optional": false
      },
      "declare": false,
      "span": {
        "start": 175,
        "end": 511,
        "ctxt": 0
      },
      "decorators": [],
      "body": [
        {
          "type": "ClassProperty",
          "span": {
            "start": 199,
            "end": 226,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 206,
              "end": 207,
              "ctxt": 0
            },
            "value": "x",
            "optional": false
          },
          "value": {
            "type": "TsNonNullExpression",
            "span": {
              "start": 215,
              "end": 225,
              "ctxt": 0
            },
            "expression": {
              "type": "Identifier",
              "span": {
                "start": 215,
                "end": 224,
                "ctxt": 0
              },
              "value": "undefined",
              "optional": false
            }
          },
          "typeAnnotation": {
            "type": "TsTypeAnnotation",
            "span": {
              "start": 207,
              "end": 212,
              "ctxt": 0
            },
            "typeAnnotation": {
              "type": "TsKeywordType",
              "span": {
                "start": 209,
                "end": 212,
                "ctxt": 0
              },
              "kind": "any"
            }
          },
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 231,
            "end": 250,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 238,
              "end": 240,
              "ctxt": 0
            },
            "value": "y1",
            "optional": false
          },
          "value": {
            "type": "MemberExpression",
            "span": {
              "start": 243,
              "end": 249,
              "ctxt": 0
            },
            "object": {
              "type": "ThisExpression",
              "span": {
                "start": 243,
                "end": 247,
                "ctxt": 0
              }
            },
            "property": {
              "type": "Identifier",
              "span": {
                "start": 248,
                "end": 249,
                "ctxt": 0
              },
              "value": "x",
              "optional": false
            }
          },
          "typeAnnotation": null,
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 255,
            "end": 276,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 262,
              "end": 264,
              "ctxt": 0
            },
            "value": "y2",
            "optional": false
          },
          "value": {
            "type": "CallExpression",
            "span": {
              "start": 267,
              "end": 275,
              "ctxt": 0
            },
            "callee": {
              "type": "MemberExpression",
              "span": {
                "start": 267,
                "end": 273,
                "ctxt": 0
              },
              "object": {
                "type": "ThisExpression",
                "span": {
                  "start": 267,
                  "end": 271,
                  "ctxt": 0
                }
              },
              "property": {
                "type": "Identifier",
                "span": {
                  "start": 272,
                  "end": 273,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false
              }
            },
            "arguments": [],
            "typeArguments": null
          },
          "typeAnnotation": null,
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 281,
            "end": 303,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 288,
              "end": 290,
              "ctxt": 0
            },
            "value": "y3",
            "optional": false
          },
          "value": {
            "type": "CallExpression",
            "span": {
              "start": 293,
              "end": 302,
              "ctxt": 0
            },
            "callee": {
              "type": "OptionalChainingExpression",
              "span": {
                "start": 293,
                "end": 300,
                "ctxt": 0
              },
              "questionDotToken": {
                "start": 297,
                "end": 298,
                "ctxt": 0
              },
              "base": {
                "type": "MemberExpression",
                "span": {
                  "start": 293,
                  "end": 300,
                  "ctxt": 0
                },
                "object": {
                  "type": "ThisExpression",
                  "span": {
                    "start": 293,
                    "end": 297,
                    "ctxt": 0
                  }
                },
                "property": {
                  "type": "Identifier",
                  "span": {
                    "start": 299,
                    "end": 300,
                    "ctxt": 0
                  },
                  "value": "x",
                  "optional": false
                }
              }
            },
            "arguments": [],
            "typeArguments": null
          },
          "typeAnnotation": null,
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 308,
            "end": 334,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 315,
              "end": 317,
              "ctxt": 0
            },
            "value": "y4",
            "optional": false
          },
          "value": {
            "type": "CallExpression",
            "span": {
              "start": 320,
              "end": 333,
              "ctxt": 0
            },
            "callee": {
              "type": "MemberExpression",
              "span": {
                "start": 320,
                "end": 331,
                "ctxt": 0
              },
              "object": {
                "type": "ThisExpression",
                "span": {
                  "start": 320,
                  "end": 324,
                  "ctxt": 0
                }
              },
              "property": {
                "type": "Computed",
                "span": {
                  "start": 324,
                  "end": 331,
                  "ctxt": 0
                },
                "expression": {
                  "type": "ParenthesisExpression",
                  "span": {
                    "start": 325,
                    "end": 330,
                    "ctxt": 0
                  },
                  "expression": {
                    "type": "StringLiteral",
                    "span": {
                      "start": 326,
                      "end": 329,
                      "ctxt": 0
                    },
                    "value": "x",
                    "hasEscape": false,
                    "kind": {
                      "type": "normal",
                      "containsQuote": true
                    }
                  }
                }
              }
            },
            "arguments": [],
            "typeArguments": null
          },
          "typeAnnotation": null,
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 339,
            "end": 367,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 346,
              "end": 348,
              "ctxt": 0
            },
            "value": "y5",
            "optional": false
          },
          "value": {
            "type": "CallExpression",
            "span": {
              "start": 351,
              "end": 366,
              "ctxt": 0
            },
            "callee": {
              "type": "OptionalChainingExpression",
              "span": {
                "start": 351,
                "end": 364,
                "ctxt": 0
              },
              "questionDotToken": {
                "start": 355,
                "end": 356,
                "ctxt": 0
              },
              "base": {
                "type": "MemberExpression",
                "span": {
                  "start": 351,
                  "end": 364,
                  "ctxt": 0
                },
                "object": {
                  "type": "ThisExpression",
                  "span": {
                    "start": 351,
                    "end": 355,
                    "ctxt": 0
                  }
                },
                "property": {
                  "type": "Computed",
                  "span": {
                    "start": 357,
                    "end": 364,
                    "ctxt": 0
                  },
                  "expression": {
                    "type": "ParenthesisExpression",
                    "span": {
                      "start": 358,
                      "end": 363,
                      "ctxt": 0
                    },
                    "expression": {
                      "type": "StringLiteral",
                      "span": {
                        "start": 359,
                        "end": 362,
                        "ctxt": 0
                      },
                      "value": "x",
                      "hasEscape": false,
                      "kind": {
                        "type": "normal",
                        "containsQuote": true
                      }
                    }
                  }
                }
              }
            },
            "arguments": [],
            "typeArguments": null
          },
          "typeAnnotation": null,
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 372,
            "end": 394,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 379,
              "end": 381,
              "ctxt": 0
            },
            "value": "z3",
            "optional": false
          },
          "value": {
            "type": "CallExpression",
            "span": {
              "start": 384,
              "end": 393,
              "ctxt": 0
            },
            "callee": {
              "type": "SuperPropExpression",
              "span": {
                "start": 384,
                "end": 391,
                "ctxt": 0
              },
              "obj": {
                "type": "Super",
                "span": {
                  "start": 384,
                  "end": 389,
                  "ctxt": 0
                }
              },
              "property": {
                "type": "Identifier",
                "span": {
                  "start": 390,
                  "end": 391,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              }
            },
            "arguments": [],
            "typeArguments": null
          },
          "typeAnnotation": null,
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 399,
            "end": 424,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 406,
              "end": 408,
              "ctxt": 0
            },
            "value": "z4",
            "optional": false
          },
          "value": {
            "type": "CallExpression",
            "span": {
              "start": 411,
              "end": 423,
              "ctxt": 0
            },
            "callee": {
              "type": "SuperPropExpression",
              "span": {
                "start": 411,
                "end": 421,
                "ctxt": 0
              },
              "obj": {
                "type": "Super",
                "span": {
                  "start": 411,
                  "end": 416,
                  "ctxt": 0
                }
              },
              "property": {
                "type": "Computed",
                "span": {
                  "start": 416,
                  "end": 421,
                  "ctxt": 0
                },
                "expression": {
                  "type": "StringLiteral",
                  "span": {
                    "start": 417,
                    "end": 420,
                    "ctxt": 0
                  },
                  "value": "f",
                  "hasEscape": false,
                  "kind": {
                    "type": "normal",
                    "containsQuote": true
                  }
                }
              }
            },
            "arguments": [],
            "typeArguments": null
          },
          "typeAnnotation": null,
          "isStatic": true,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 468,
            "end": 474,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 468,
              "end": 469,
              "ctxt": 0
            },
            "value": "x",
            "optional": false
          },
          "value": {
            "type": "NumericLiteral",
            "span": {
              "start": 472,
              "end": 473,
              "ctxt": 0
            },
            "value": 1.0
          },
          "typeAnnotation": null,
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 479,
            "end": 490,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 479,
              "end": 480,
              "ctxt": 0
            },
            "value": "y",
            "optional": false
          },
          "value": {
            "type": "MemberExpression",
            "span": {
              "start": 483,
              "end": 489,
              "ctxt": 0
            },
            "object": {
              "type": "ThisExpression",
              "span": {
                "start": 483,
                "end": 487,
                "ctxt": 0
              }
            },
            "property": {
              "type": "Identifier",
              "span": {
                "start": 488,
                "end": 489,
                "ctxt": 0
              },
              "value": "x",
              "optional": false
            }
          },
          "typeAnnotation": null,
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 495,
            "end": 509,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 495,
              "end": 496,
              "ctxt": 0
            },
            "value": "z",
            "optional": false
          },
          "value": {
            "type": "CallExpression",
            "span": {
              "start": 499,
              "end": 508,
              "ctxt": 0
            },
            "callee": {
              "type": "SuperPropExpression",
              "span": {
                "start": 499,
                "end": 506,
                "ctxt": 0
              },
              "obj": {
                "type": "Super",
                "span": {
                  "start": 499,
                  "end": 504,
                  "ctxt": 0
                }
              },
              "property": {
                "type": "Identifier",
                "span": {
                  "start": 505,
                  "end": 506,
                  "ctxt": 0
                },
                "value": "f",
                "optional": false
              }
            },
            "arguments": [],
            "typeArguments": null
          },
          "typeAnnotation": null,
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        }
      ],
      "superClass": {
        "type": "Identifier",
        "span": {
          "start": 191,
          "end": 192,
          "ctxt": 0
        },
        "value": "B",
        "optional": false
      },
      "isAbstract": false,
      "typeParams": null,
      "superTypeParams": null,
      "implements": []
    }
  ],
  "interpreter": null
}