{
  "type": "Script",
  "span": {
    "start": 142,
    "end": 455,
    "ctxt": 0
  },
  "body": [
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 151,
          "end": 152,
          "ctxt": 0
        },
        "value": "C",
        "optional": false
      },
      "declare": false,
      "params": [
        {
          "type": "Parameter",
          "span": {
            "start": 153,
            "end": 154,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 153,
              "end": 154,
              "ctxt": 0
            },
            "value": "x",
            "optional": false,
            "typeAnnotation": null
          }
        }
      ],
      "decorators": [],
      "span": {
        "start": 142,
        "end": 174,
        "ctxt": 0
      },
      "body": {
        "type": "BlockStatement",
        "span": {
          "start": 156,
          "end": 174,
          "ctxt": 0
        },
        "stmts": [
          {
            "type": "ExpressionStatement",
            "span": {
              "start": 162,
              "end": 172,
              "ctxt": 0
            },
            "expression": {
              "type": "AssignmentExpression",
              "span": {
                "start": 162,
                "end": 172,
                "ctxt": 0
              },
              "operator": "=",
              "left": {
                "type": "MemberExpression",
                "span": {
                  "start": 162,
                  "end": 168,
                  "ctxt": 0
                },
                "object": {
                  "type": "ThisExpression",
                  "span": {
                    "start": 162,
                    "end": 166,
                    "ctxt": 0
                  }
                },
                "property": {
                  "type": "Identifier",
                  "span": {
                    "start": 167,
                    "end": 168,
                    "ctxt": 0
                  },
                  "value": "x",
                  "optional": false
                }
              },
              "right": {
                "type": "Identifier",
                "span": {
                  "start": 171,
                  "end": 172,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false
              }
            }
          }
        ]
      },
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": null
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 175,
        "end": 221,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 175,
          "end": 221,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "MemberExpression",
          "span": {
            "start": 175,
            "end": 188,
            "ctxt": 0
          },
          "object": {
            "type": "MemberExpression",
            "span": {
              "start": 175,
              "end": 186,
              "ctxt": 0
            },
            "object": {
              "type": "Identifier",
              "span": {
                "start": 175,
                "end": 176,
                "ctxt": 0
              },
              "value": "C",
              "optional": false
            },
            "property": {
              "type": "Identifier",
              "span": {
                "start": 177,
                "end": 186,
                "ctxt": 0
              },
              "value": "prototype",
              "optional": false
            }
          },
          "property": {
            "type": "Identifier",
            "span": {
              "start": 187,
              "end": 188,
              "ctxt": 0
            },
            "value": "m",
            "optional": false
          }
        },
        "right": {
          "type": "FunctionExpression",
          "identifier": null,
          "params": [],
          "decorators": [],
          "span": {
            "start": 191,
            "end": 221,
            "ctxt": 0
          },
          "body": {
            "type": "BlockStatement",
            "span": {
              "start": 202,
              "end": 221,
              "ctxt": 0
            },
            "stmts": [
              {
                "type": "ExpressionStatement",
                "span": {
                  "start": 208,
                  "end": 219,
                  "ctxt": 0
                },
                "expression": {
                  "type": "AssignmentExpression",
                  "span": {
                    "start": 208,
                    "end": 219,
                    "ctxt": 0
                  },
                  "operator": "=",
                  "left": {
                    "type": "MemberExpression",
                    "span": {
                      "start": 208,
                      "end": 214,
                      "ctxt": 0
                    },
                    "object": {
                      "type": "ThisExpression",
                      "span": {
                        "start": 208,
                        "end": 212,
                        "ctxt": 0
                      }
                    },
                    "property": {
                      "type": "Identifier",
                      "span": {
                        "start": 213,
                        "end": 214,
                        "ctxt": 0
                      },
                      "value": "y",
                      "optional": false
                    }
                  },
                  "right": {
                    "type": "NumericLiteral",
                    "span": {
                      "start": 217,
                      "end": 219,
                      "ctxt": 0
                    },
                    "value": 12.0
                  }
                }
              }
            ]
          },
          "generator": false,
          "async": false,
          "typeParameters": null,
          "returnType": null
        }
      }
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 222,
        "end": 238,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 226,
            "end": 238,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 226,
              "end": 227,
              "ctxt": 0
            },
            "value": "c",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 230,
              "end": 238,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 234,
                "end": 235,
                "ctxt": 0
              },
              "value": "C",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 236,
                    "end": 237,
                    "ctxt": 0
                  },
                  "value": 1.0
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 239,
        "end": 254,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 239,
          "end": 254,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "MemberExpression",
          "span": {
            "start": 239,
            "end": 242,
            "ctxt": 0
          },
          "object": {
            "type": "Identifier",
            "span": {
              "start": 239,
              "end": 240,
              "ctxt": 0
            },
            "value": "c",
            "optional": false
          },
          "property": {
            "type": "Identifier",
            "span": {
              "start": 241,
              "end": 242,
              "ctxt": 0
            },
            "value": "x",
            "optional": false
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 245,
            "end": 254,
            "ctxt": 0
          },
          "value": "undefined",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 271,
        "end": 286,
        "ctxt": 0
      },
      "expression": {
        "type": "AssignmentExpression",
        "span": {
          "start": 271,
          "end": 286,
          "ctxt": 0
        },
        "operator": "=",
        "left": {
          "type": "MemberExpression",
          "span": {
            "start": 271,
            "end": 274,
            "ctxt": 0
          },
          "object": {
            "type": "Identifier",
            "span": {
              "start": 271,
              "end": 272,
              "ctxt": 0
            },
            "value": "c",
            "optional": false
          },
          "property": {
            "type": "Identifier",
            "span": {
              "start": 273,
              "end": 274,
              "ctxt": 0
            },
            "value": "y",
            "optional": false
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 277,
            "end": 286,
            "ctxt": 0
          },
          "value": "undefined",
          "optional": false
        }
      }
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 328,
          "end": 329,
          "ctxt": 0
        },
        "value": "A",
        "optional": false
      },
      "declare": false,
      "params": [
        {
          "type": "Parameter",
          "span": {
            "start": 330,
            "end": 331,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 330,
              "end": 331,
              "ctxt": 0
            },
            "value": "x",
            "optional": false,
            "typeAnnotation": null
          }
        }
      ],
      "decorators": [],
      "span": {
        "start": 319,
        "end": 413,
        "ctxt": 0
      },
      "body": {
        "type": "BlockStatement",
        "span": {
          "start": 333,
          "end": 413,
          "ctxt": 0
        },
        "stmts": [
          {
            "type": "IfStatement",
            "span": {
              "start": 339,
              "end": 396,
              "ctxt": 0
            },
            "test": {
              "type": "UnaryExpression",
              "span": {
                "start": 343,
                "end": 363,
                "ctxt": 0
              },
              "operator": "!",
              "argument": {
                "type": "ParenthesisExpression",
                "span": {
                  "start": 344,
                  "end": 363,
                  "ctxt": 0
                },
                "expression": {
                  "type": "BinaryExpression",
                  "span": {
                    "start": 345,
                    "end": 362,
                    "ctxt": 0
                  },
                  "operator": "instanceof",
                  "left": {
                    "type": "ThisExpression",
                    "span": {
                      "start": 345,
                      "end": 349,
                      "ctxt": 0
                    }
                  },
                  "right": {
                    "type": "Identifier",
                    "span": {
                      "start": 361,
                      "end": 362,
                      "ctxt": 0
                    },
                    "value": "A",
                    "optional": false
                  }
                }
              }
            },
            "consequent": {
              "type": "BlockStatement",
              "span": {
                "start": 365,
                "end": 396,
                "ctxt": 0
              },
              "stmts": [
                {
                  "type": "ReturnStatement",
                  "span": {
                    "start": 375,
                    "end": 390,
                    "ctxt": 0
                  },
                  "argument": {
                    "type": "NewExpression",
                    "span": {
                      "start": 382,
                      "end": 390,
                      "ctxt": 0
                    },
                    "callee": {
                      "type": "Identifier",
                      "span": {
                        "start": 386,
                        "end": 387,
                        "ctxt": 0
                      },
                      "value": "A",
                      "optional": false
                    },
                    "arguments": [
                      {
                        "spread": null,
                        "expression": {
                          "type": "Identifier",
                          "span": {
                            "start": 388,
                            "end": 389,
                            "ctxt": 0
                          },
                          "value": "x",
                          "optional": false
                        }
                      }
                    ],
                    "typeArguments": null
                  }
                }
              ]
            },
            "alternate": null
          },
          {
            "type": "ExpressionStatement",
            "span": {
              "start": 401,
              "end": 411,
              "ctxt": 0
            },
            "expression": {
              "type": "AssignmentExpression",
              "span": {
                "start": 401,
                "end": 411,
                "ctxt": 0
              },
              "operator": "=",
              "left": {
                "type": "MemberExpression",
                "span": {
                  "start": 401,
                  "end": 407,
                  "ctxt": 0
                },
                "object": {
                  "type": "ThisExpression",
                  "span": {
                    "start": 401,
                    "end": 405,
                    "ctxt": 0
                  }
                },
                "property": {
                  "type": "Identifier",
                  "span": {
                    "start": 406,
                    "end": 407,
                    "ctxt": 0
                  },
                  "value": "x",
                  "optional": false
                }
              },
              "right": {
                "type": "Identifier",
                "span": {
                  "start": 410,
                  "end": 411,
                  "ctxt": 0
                },
                "value": "x",
                "optional": false
              }
            }
          }
        ]
      },
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": null
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 414,
        "end": 426,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 418,
            "end": 426,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 418,
              "end": 419,
              "ctxt": 0
            },
            "value": "k",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "CallExpression",
            "span": {
              "start": 422,
              "end": 426,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 422,
                "end": 423,
                "ctxt": 0
              },
              "value": "A",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 424,
                    "end": 425,
                    "ctxt": 0
                  },
                  "value": 1.0
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 427,
        "end": 443,
        "ctxt": 0
      },
      "kind": "var",
      "declare": false,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 431,
            "end": 443,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 431,
              "end": 432,
              "ctxt": 0
            },
            "value": "j",
            "optional": false,
            "typeAnnotation": null
          },
          "init": {
            "type": "NewExpression",
            "span": {
              "start": 435,
              "end": 443,
              "ctxt": 0
            },
            "callee": {
              "type": "Identifier",
              "span": {
                "start": 439,
                "end": 440,
                "ctxt": 0
              },
              "value": "A",
              "optional": false
            },
            "arguments": [
              {
                "spread": null,
                "expression": {
                  "type": "NumericLiteral",
                  "span": {
                    "start": 441,
                    "end": 442,
                    "ctxt": 0
                  },
                  "value": 2.0
                }
              }
            ],
            "typeArguments": null
          },
          "definite": false
        }
      ]
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 444,
        "end": 455,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 444,
          "end": 455,
          "ctxt": 0
        },
        "operator": "===",
        "left": {
          "type": "MemberExpression",
          "span": {
            "start": 444,
            "end": 447,
            "ctxt": 0
          },
          "object": {
            "type": "Identifier",
            "span": {
              "start": 444,
              "end": 445,
              "ctxt": 0
            },
            "value": "k",
            "optional": false
          },
          "property": {
            "type": "Identifier",
            "span": {
              "start": 446,
              "end": 447,
              "ctxt": 0
            },
            "value": "x",
            "optional": false
          }
        },
        "right": {
          "type": "MemberExpression",
          "span": {
            "start": 452,
            "end": 455,
            "ctxt": 0
          },
          "object": {
            "type": "Identifier",
            "span": {
              "start": 452,
              "end": 453,
              "ctxt": 0
            },
            "value": "j",
            "optional": false
          },
          "property": {
            "type": "Identifier",
            "span": {
              "start": 454,
              "end": 455,
              "ctxt": 0
            },
            "value": "x",
            "optional": false
          }
        }
      }
    }
  ],
  "interpreter": null
}