swc/crates/swc_ecma_parser/tests/tsc/derivedClassWithoutExplicitConstructor2.json

{
  "type": "Script",
  "span": {
    "start": 1,
    "end": 699,
    "ctxt": 0
  },
  "body": [
    {
      "type": "ClassDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 7,
          "end": 11,
          "ctxt": 0
        },
        "value": "Base",
        "optional": false
      },
      "declare": false,
      "span": {
        "start": 1,
        "end": 161,
        "ctxt": 0
      },
      "decorators": [],
      "body": [
        {
          "type": "ClassProperty",
          "span": {
            "start": 18,
            "end": 24,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 18,
              "end": 19,
              "ctxt": 0
            },
            "value": "a",
            "optional": false
          },
          "value": {
            "type": "NumericLiteral",
            "span": {
              "start": 22,
              "end": 23,
              "ctxt": 0
            },
            "value": 1.0,
            "raw": "1"
          },
          "typeAnnotation": null,
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "Constructor",
          "span": {
            "start": 29,
            "end": 76,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 29,
              "end": 40,
              "ctxt": 0
            },
            "value": "constructor",
            "optional": false
          },
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 41,
                "end": 50,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 41,
                  "end": 50,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 42,
                    "end": 50,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 44,
                      "end": 50,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            },
            {
              "type": "Parameter",
              "span": {
                "start": 52,
                "end": 62,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 52,
                  "end": 62,
                  "ctxt": 0
                },
                "value": "y",
                "optional": true,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 54,
                    "end": 62,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 56,
                      "end": 62,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            },
            {
              "type": "Parameter",
              "span": {
                "start": 64,
                "end": 74,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 64,
                  "end": 74,
                  "ctxt": 0
                },
                "value": "z",
                "optional": true,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 66,
                    "end": 74,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 68,
                      "end": 74,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            }
          ],
          "body": null,
          "accessibility": null,
          "isOptional": false
        },
        {
          "type": "Constructor",
          "span": {
            "start": 81,
            "end": 116,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 81,
              "end": 92,
              "ctxt": 0
            },
            "value": "constructor",
            "optional": false
          },
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 93,
                "end": 102,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 93,
                  "end": 102,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 94,
                    "end": 102,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 96,
                      "end": 102,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            },
            {
              "type": "Parameter",
              "span": {
                "start": 104,
                "end": 114,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 104,
                  "end": 114,
                  "ctxt": 0
                },
                "value": "y",
                "optional": true,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 106,
                    "end": 114,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 108,
                      "end": 114,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            }
          ],
          "body": null,
          "accessibility": null,
          "isOptional": false
        },
        {
          "type": "Constructor",
          "span": {
            "start": 121,
            "end": 159,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 121,
              "end": 132,
              "ctxt": 0
            },
            "value": "constructor",
            "optional": false
          },
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 133,
                "end": 142,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 133,
                  "end": 142,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 134,
                    "end": 142,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 136,
                      "end": 142,
                      "ctxt": 0
                    },
                    "kind": "number"
                  }
                }
              }
            }
          ],
          "body": {
            "type": "BlockStatement",
            "span": {
              "start": 144,
              "end": 159,
              "ctxt": 0
            },
            "stmts": [
              {
                "type": "ExpressionStatement",
                "span": {
                  "start": 146,
                  "end": 157,
                  "ctxt": 0
                },
                "expression": {
                  "type": "AssignmentExpression",
                  "span": {
                    "start": 146,
                    "end": 156,
                    "ctxt": 0
                  },
                  "operator": "=",
                  "left": {
                    "type": "MemberExpression",
                    "span": {
                      "start": 146,
                      "end": 152,
                      "ctxt": 0
                    },
                    "object": {
                      "type": "ThisExpression",
                      "span": {
                        "start": 146,
                        "end": 150,
                        "ctxt": 0
                      }
                    },
                    "property": {
                      "type": "Identifier",
                      "span": {
                        "start": 151,
                        "end": 152,
                        "ctxt": 0
                      },
                      "value": "a",
                      "optional": false
                    }
                  },
                  "right": {
                    "type": "Identifier",
                    "span": {
                      "start": 155,
                      "end": 156,
                      "ctxt": 0
                    },
                    "value": "x",
                    "optional": false
                  }
                }
              }
            ]
          },
          "accessibility": null,
          "isOptional": false
        }
      ],
      "superClass": null,
      "isAbstract": false,
      "typeParams": null,
      "superTypeParams": null,
      "implements": []
    },
    {
      "type": "ClassDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 169,
          "end": 176,
          "ctxt": 0
        },
        "value": "Derived",
        "optional": false
      },
      "declare": false,
      "span": {
        "start": 163,
        "end": 220,
        "ctxt": 0
      },
      "decorators": [],
      "body": [
        {
          "type": "ClassProperty",
          "span": {
            "start": 196,
            "end": 201,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 196,
              "end": 197,
              "ctxt": 0
            },
            "value": "x",
            "optional": false
          },
          "value": {
            "type": "NumericLiteral",
            "span": {
              "start": 200,
              "end": 201,
              "ctxt": 0
            },
            "value": 1.0,
            "raw": "1"
          },
          "typeAnnotation": null,
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 206,
            "end": 218,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 206,
              "end": 207,
              "ctxt": 0
            },
            "value": "y",
            "optional": false
          },
          "value": {
            "type": "StringLiteral",
            "span": {
              "start": 210,
              "end": 217,
              "ctxt": 0
            },
            "value": "hello",
            "raw": "'hello'"
          },
          "typeAnnotation": null,
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        }
      ],
      "superClass": {
        "type": "Identifier",
        "span": {
          "start": 185,
          "end": 189,
          "ctxt": 0
        },
        "value": "Base",
        "optional": false
      },
      "isAbstract": false,
      "typeParams": null,
      "superTypeParams": null,
      "implements": []
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 222,
        "end": 244,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 226,
            "end": 243,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 226,
              "end": 227,
              "ctxt": 0
            },
            "value": "r",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 230,
              "end": 243,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 234,
                "end": 241,
                "ctxt": 0
              },
              "value": "Derived",
              "optional": false
            },
            "arguments": [],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 254,
        "end": 278,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 258,
            "end": 277,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 258,
              "end": 260,
              "ctxt": 0
            },
            "value": "r2",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 263,
              "end": 277,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 267,
                "end": 274,
                "ctxt": 0
              },
              "value": "Derived",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 275,
                    "end": 276,
                    "ctxt": 0
                  },
                  "value": 1.0,
                  "raw": "1"
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 280,
        "end": 307,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 284,
            "end": 306,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 284,
              "end": 286,
              "ctxt": 0
            },
            "value": "r3",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 289,
              "end": 306,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 293,
                "end": 300,
                "ctxt": 0
              },
              "value": "Derived",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 301,
                    "end": 302,
                    "ctxt": 0
                  },
                  "value": 1.0,
                  "raw": "1"
                }
              },
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 304,
                    "end": 305,
                    "ctxt": 0
                  },
                  "value": 2.0,
                  "raw": "2"
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 308,
        "end": 338,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 312,
            "end": 337,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 312,
              "end": 314,
              "ctxt": 0
            },
            "value": "r4",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 317,
              "end": 337,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 321,
                "end": 328,
                "ctxt": 0
              },
              "value": "Derived",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 329,
                    "end": 330,
                    "ctxt": 0
                  },
                  "value": 1.0,
                  "raw": "1"
                }
              },
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 332,
                    "end": 333,
                    "ctxt": 0
                  },
                  "value": 2.0,
                  "raw": "2"
                }
              },
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 335,
                    "end": 336,
                    "ctxt": 0
                  },
                  "value": 3.0,
                  "raw": "3"
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "ClassDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 346,
          "end": 351,
          "ctxt": 0
        },
        "value": "Base2",
        "optional": false
      },
      "declare": false,
      "span": {
        "start": 340,
        "end": 473,
        "ctxt": 0
      },
      "decorators": [],
      "body": [
        {
          "type": "ClassProperty",
          "span": {
            "start": 361,
            "end": 366,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 361,
              "end": 362,
              "ctxt": 0
            },
            "value": "a",
            "optional": false
          },
          "value": null,
          "typeAnnotation": {
            "type": "TsTypeAnnotation",
            "span": {
              "start": 362,
              "end": 365,
              "ctxt": 0
            },
            "typeAnnotation": {
              "type": "TsTypeReference",
              "span": {
                "start": 364,
                "end": 365,
                "ctxt": 0
              },
              "typeName": {
                "type": "Identifier",
                "span": {
                  "start": 364,
                  "end": 365,
                  "ctxt": 0
                },
                "value": "T",
                "optional": false
              },
              "typeParams": null
            }
          },
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "Constructor",
          "span": {
            "start": 371,
            "end": 403,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 371,
              "end": 382,
              "ctxt": 0
            },
            "value": "constructor",
            "optional": false
          },
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 383,
                "end": 387,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 383,
                  "end": 387,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 384,
                    "end": 387,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsTypeReference",
                    "span": {
                      "start": 386,
                      "end": 387,
                      "ctxt": 0
                    },
                    "typeName": {
                      "type": "Identifier",
                      "span": {
                        "start": 386,
                        "end": 387,
                        "ctxt": 0
                      },
                      "value": "T",
                      "optional": false
                    },
                    "typeParams": null
                  }
                }
              }
            },
            {
              "type": "Parameter",
              "span": {
                "start": 389,
                "end": 394,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 389,
                  "end": 394,
                  "ctxt": 0
                },
                "value": "y",
                "optional": true,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 391,
                    "end": 394,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsTypeReference",
                    "span": {
                      "start": 393,
                      "end": 394,
                      "ctxt": 0
                    },
                    "typeName": {
                      "type": "Identifier",
                      "span": {
                        "start": 393,
                        "end": 394,
                        "ctxt": 0
                      },
                      "value": "T",
                      "optional": false
                    },
                    "typeParams": null
                  }
                }
              }
            },
            {
              "type": "Parameter",
              "span": {
                "start": 396,
                "end": 401,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 396,
                  "end": 401,
                  "ctxt": 0
                },
                "value": "z",
                "optional": true,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 398,
                    "end": 401,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsTypeReference",
                    "span": {
                      "start": 400,
                      "end": 401,
                      "ctxt": 0
                    },
                    "typeName": {
                      "type": "Identifier",
                      "span": {
                        "start": 400,
                        "end": 401,
                        "ctxt": 0
                      },
                      "value": "T",
                      "optional": false
                    },
                    "typeParams": null
                  }
                }
              }
            }
          ],
          "body": null,
          "accessibility": null,
          "isOptional": false
        },
        {
          "type": "Constructor",
          "span": {
            "start": 408,
            "end": 433,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 408,
              "end": 419,
              "ctxt": 0
            },
            "value": "constructor",
            "optional": false
          },
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 420,
                "end": 424,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 420,
                  "end": 424,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 421,
                    "end": 424,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsTypeReference",
                    "span": {
                      "start": 423,
                      "end": 424,
                      "ctxt": 0
                    },
                    "typeName": {
                      "type": "Identifier",
                      "span": {
                        "start": 423,
                        "end": 424,
                        "ctxt": 0
                      },
                      "value": "T",
                      "optional": false
                    },
                    "typeParams": null
                  }
                }
              }
            },
            {
              "type": "Parameter",
              "span": {
                "start": 426,
                "end": 431,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 426,
                  "end": 431,
                  "ctxt": 0
                },
                "value": "y",
                "optional": true,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 428,
                    "end": 431,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsTypeReference",
                    "span": {
                      "start": 430,
                      "end": 431,
                      "ctxt": 0
                    },
                    "typeName": {
                      "type": "Identifier",
                      "span": {
                        "start": 430,
                        "end": 431,
                        "ctxt": 0
                      },
                      "value": "T",
                      "optional": false
                    },
                    "typeParams": null
                  }
                }
              }
            }
          ],
          "body": null,
          "accessibility": null,
          "isOptional": false
        },
        {
          "type": "Constructor",
          "span": {
            "start": 438,
            "end": 471,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 438,
              "end": 449,
              "ctxt": 0
            },
            "value": "constructor",
            "optional": false
          },
          "params": [
            {
              "type": "Parameter",
              "span": {
                "start": 450,
                "end": 454,
                "ctxt": 0
              },
              "decorators": [],
              "pat": {
                "type": "Identifier",
                "span": {
                  "start": 450,
                  "end": 454,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false,
                "typeAnnotation": {
                  "type": "TsTypeAnnotation",
                  "span": {
                    "start": 451,
                    "end": 454,
                    "ctxt": 0
                  },
                  "typeAnnotation": {
                    "type": "TsTypeReference",
                    "span": {
                      "start": 453,
                      "end": 454,
                      "ctxt": 0
                    },
                    "typeName": {
                      "type": "Identifier",
                      "span": {
                        "start": 453,
                        "end": 454,
                        "ctxt": 0
                      },
                      "value": "T",
                      "optional": false
                    },
                    "typeParams": null
                  }
                }
              }
            }
          ],
          "body": {
            "type": "BlockStatement",
            "span": {
              "start": 456,
              "end": 471,
              "ctxt": 0
            },
            "stmts": [
              {
                "type": "ExpressionStatement",
                "span": {
                  "start": 458,
                  "end": 469,
                  "ctxt": 0
                },
                "expression": {
                  "type": "AssignmentExpression",
                  "span": {
                    "start": 458,
                    "end": 468,
                    "ctxt": 0
                  },
                  "operator": "=",
                  "left": {
                    "type": "MemberExpression",
                    "span": {
                      "start": 458,
                      "end": 464,
                      "ctxt": 0
                    },
                    "object": {
                      "type": "ThisExpression",
                      "span": {
                        "start": 458,
                        "end": 462,
                        "ctxt": 0
                      }
                    },
                    "property": {
                      "type": "Identifier",
                      "span": {
                        "start": 463,
                        "end": 464,
                        "ctxt": 0
                      },
                      "value": "a",
                      "optional": false
                    }
                  },
                  "right": {
                    "type": "Identifier",
                    "span": {
                      "start": 467,
                      "end": 468,
                      "ctxt": 0
                    },
                    "value": "x",
                    "optional": false
                  }
                }
              }
            ]
          },
          "accessibility": null,
          "isOptional": false
        }
      ],
      "superClass": null,
      "isAbstract": false,
      "typeParams": {
        "type": "TsTypeParameterDeclaration",
        "span": {
          "start": 351,
          "end": 354,
          "ctxt": 0
        },
        "parameters": [
          {
            "type": "TsTypeParameter",
            "span": {
              "start": 352,
              "end": 353,
              "ctxt": 0
            },
            "name": {
              "type": "Identifier",
              "span": {
                "start": 352,
                "end": 353,
                "ctxt": 0
              },
              "value": "T",
              "optional": false
            },
            "in": false,
            "out": false,
            "const": false,
            "constraint": null,
            "default": null
          }
        ]
      },
      "superTypeParams": null,
      "implements": []
    },
    {
      "type": "ClassDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 481,
          "end": 482,
          "ctxt": 0
        },
        "value": "D",
        "optional": false
      },
      "declare": false,
      "span": {
        "start": 475,
        "end": 546,
        "ctxt": 0
      },
      "decorators": [],
      "body": [
        {
          "type": "ClassProperty",
          "span": {
            "start": 522,
            "end": 527,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 522,
              "end": 523,
              "ctxt": 0
            },
            "value": "x",
            "optional": false
          },
          "value": {
            "type": "NumericLiteral",
            "span": {
              "start": 526,
              "end": 527,
              "ctxt": 0
            },
            "value": 2.0,
            "raw": "2"
          },
          "typeAnnotation": null,
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        },
        {
          "type": "ClassProperty",
          "span": {
            "start": 532,
            "end": 544,
            "ctxt": 0
          },
          "key": {
            "type": "Identifier",
            "span": {
              "start": 532,
              "end": 533,
              "ctxt": 0
            },
            "value": "y",
            "optional": false
          },
          "value": {
            "type": "NullLiteral",
            "span": {
              "start": 539,
              "end": 543,
              "ctxt": 0
            }
          },
          "typeAnnotation": {
            "type": "TsTypeAnnotation",
            "span": {
              "start": 533,
              "end": 536,
              "ctxt": 0
            },
            "typeAnnotation": {
              "type": "TsTypeReference",
              "span": {
                "start": 535,
                "end": 536,
                "ctxt": 0
              },
              "typeName": {
                "type": "Identifier",
                "span": {
                  "start": 535,
                  "end": 536,
                  "ctxt": 0
                },
                "value": "T",
                "optional": false
              },
              "typeParams": null
            }
          },
          "isStatic": false,
          "decorators": [],
          "accessibility": null,
          "isAbstract": false,
          "isOptional": false,
          "isOverride": false,
          "readonly": false,
          "declare": false,
          "definite": false
        }
      ],
      "superClass": {
        "type": "Identifier",
        "span": {
          "start": 507,
          "end": 512,
          "ctxt": 0
        },
        "value": "Base2",
        "optional": false
      },
      "isAbstract": false,
      "typeParams": {
        "type": "TsTypeParameterDeclaration",
        "span": {
          "start": 482,
          "end": 498,
          "ctxt": 0
        },
        "parameters": [
          {
            "type": "TsTypeParameter",
            "span": {
              "start": 483,
              "end": 497,
              "ctxt": 0
            },
            "name": {
              "type": "Identifier",
              "span": {
                "start": 483,
                "end": 484,
                "ctxt": 0
              },
              "value": "T",
              "optional": false
            },
            "in": false,
            "out": false,
            "const": false,
            "constraint": {
              "type": "TsTypeReference",
              "span": {
                "start": 493,
                "end": 497,
                "ctxt": 0
              },
              "typeName": {
                "type": "Identifier",
                "span": {
                  "start": 493,
                  "end": 497,
                  "ctxt": 0
                },
                "value": "Date",
                "optional": false
              },
              "typeParams": null
            },
            "default": null
          }
        ]
      },
      "superTypeParams": {
        "type": "TsTypeParameterInstantiation",
        "span": {
          "start": 512,
          "end": 515,
          "ctxt": 0
        },
        "params": [
          {
            "type": "TsTypeReference",
            "span": {
              "start": 513,
              "end": 514,
              "ctxt": 0
            },
            "typeName": {
              "type": "Identifier",
              "span": {
                "start": 513,
                "end": 514,
                "ctxt": 0
              },
              "value": "T",
              "optional": false
            },
            "typeParams": null
          }
        ]
      },
      "implements": []
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 548,
        "end": 564,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 552,
            "end": 563,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 552,
              "end": 553,
              "ctxt": 0
            },
            "value": "d",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 556,
              "end": 563,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 560,
                "end": 561,
                "ctxt": 0
              },
              "value": "D",
              "optional": false
            },
            "arguments": [],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 574,
        "end": 601,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 578,
            "end": 600,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 578,
              "end": 580,
              "ctxt": 0
            },
            "value": "d2",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 583,
              "end": 600,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 587,
                "end": 588,
                "ctxt": 0
              },
              "value": "D",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NewExpression",
                  "span": {
                    "start": 589,
                    "end": 599,
                    "ctxt": 0
                  },
                  "callee": {
                    "type": "Identifier",
                    "span": {
                      "start": 593,
                      "end": 597,
                      "ctxt": 0
                    },
                    "value": "Date",
                    "optional": false
                  },
                  "arguments": [],
                  "typeArguments": null
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 608,
        "end": 647,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 612,
            "end": 646,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 612,
              "end": 614,
              "ctxt": 0
            },
            "value": "d3",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 617,
              "end": 646,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 621,
                "end": 622,
                "ctxt": 0
              },
              "value": "D",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NewExpression",
                  "span": {
                    "start": 623,
                    "end": 633,
                    "ctxt": 0
                  },
                  "callee": {
                    "type": "Identifier",
                    "span": {
                      "start": 627,
                      "end": 631,
                      "ctxt": 0
                    },
                    "value": "Date",
                    "optional": false
                  },
                  "arguments": [],
                  "typeArguments": null
                }
              },
              {
                "spread": null,
                "expression": {
                  "type": "NewExpression",
                  "span": {
                    "start": 635,
                    "end": 645,
                    "ctxt": 0
                  },
                  "callee": {
                    "type": "Identifier",
                    "span": {
                      "start": 639,
                      "end": 643,
                      "ctxt": 0
                    },
                    "value": "Date",
                    "optional": false
                  },
                  "arguments": [],
                  "typeArguments": null
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 648,
        "end": 699,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 652,
            "end": 698,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 652,
              "end": 654,
              "ctxt": 0
            },
            "value": "d4",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 657,
              "end": 698,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 661,
                "end": 662,
                "ctxt": 0
              },
              "value": "D",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NewExpression",
                  "span": {
                    "start": 663,
                    "end": 673,
                    "ctxt": 0
                  },
                  "callee": {
                    "type": "Identifier",
                    "span": {
                      "start": 667,
                      "end": 671,
                      "ctxt": 0
                    },
                    "value": "Date",
                    "optional": false
                  },
                  "arguments": [],
                  "typeArguments": null
                }
              },
              {
                "spread": null,
                "expression": {
                  "type": "NewExpression",
                  "span": {
                    "start": 675,
                    "end": 685,
                    "ctxt": 0
                  },
                  "callee": {
                    "type": "Identifier",
                    "span": {
                      "start": 679,
                      "end": 683,
                      "ctxt": 0
                    },
                    "value": "Date",
                    "optional": false
                  },
                  "arguments": [],
                  "typeArguments": null
                }
              },
              {
                "spread": null,
                "expression": {
                  "type": "NewExpression",
                  "span": {
                    "start": 687,
                    "end": 697,
                    "ctxt": 0
                  },
                  "callee": {
                    "type": "Identifier",
                    "span": {
                      "start": 691,
                      "end": 695,
                      "ctxt": 0
                    },
                    "value": "Date",
                    "optional": false
                  },
                  "arguments": [],
                  "typeArguments": null
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    }
  ],
  "interpreter": null
}