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1{
2  "type": "Program",
3  "statements": [
4    {
5      "type": "VariableDeclaration",
6      "declarations": [
7        {
8          "type": "VariableDeclarator",
9          "id": {
10            "type": "ObjectPattern",
11            "properties": [
12              {
13                "type": "Property",
14                "method": false,
15                "shorthand": false,
16                "computed": false,
17                "key": {
18                  "type": "Identifier",
19                  "name": "a",
20                  "decorators": [],
21                  "loc": {
22                    "start": {
23                      "line": 17,
24                      "column": 7
25                    },
26                    "end": {
27                      "line": 17,
28                      "column": 8
29                    }
30                  }
31                },
32                "value": {
33                  "type": "AssignmentPattern",
34                  "left": {
35                    "type": "ObjectPattern",
36                    "properties": [
37                      {
38                        "type": "Property",
39                        "method": false,
40                        "shorthand": true,
41                        "computed": false,
42                        "key": {
43                          "type": "Identifier",
44                          "name": "a",
45                          "decorators": [],
46                          "loc": {
47                            "start": {
48                              "line": 17,
49                              "column": 12
50                            },
51                            "end": {
52                              "line": 17,
53                              "column": 13
54                            }
55                          }
56                        },
57                        "value": {
58                          "type": "Identifier",
59                          "name": "a",
60                          "decorators": [],
61                          "loc": {
62                            "start": {
63                              "line": 17,
64                              "column": 12
65                            },
66                            "end": {
67                              "line": 17,
68                              "column": 13
69                            }
70                          }
71                        },
72                        "kind": "init",
73                        "loc": {
74                          "start": {
75                            "line": 17,
76                            "column": 12
77                          },
78                          "end": {
79                            "line": 17,
80                            "column": 13
81                          }
82                        }
83                      },
84                      {
85                        "type": "Property",
86                        "method": false,
87                        "shorthand": true,
88                        "computed": false,
89                        "key": {
90                          "type": "Identifier",
91                          "name": "b",
92                          "decorators": [],
93                          "loc": {
94                            "start": {
95                              "line": 17,
96                              "column": 15
97                            },
98                            "end": {
99                              "line": 17,
100                              "column": 16
101                            }
102                          }
103                        },
104                        "value": {
105                          "type": "Identifier",
106                          "name": "b",
107                          "decorators": [],
108                          "loc": {
109                            "start": {
110                              "line": 17,
111                              "column": 15
112                            },
113                            "end": {
114                              "line": 17,
115                              "column": 16
116                            }
117                          }
118                        },
119                        "kind": "init",
120                        "loc": {
121                          "start": {
122                            "line": 17,
123                            "column": 15
124                          },
125                          "end": {
126                            "line": 17,
127                            "column": 16
128                          }
129                        }
130                      }
131                    ],
132                    "loc": {
133                      "start": {
134                        "line": 17,
135                        "column": 10
136                      },
137                      "end": {
138                        "line": 17,
139                        "column": 18
140                      }
141                    }
142                  },
143                  "right": {
144                    "type": "ObjectExpression",
145                    "properties": [
146                      {
147                        "type": "Property",
148                        "method": false,
149                        "shorthand": false,
150                        "computed": false,
151                        "key": {
152                          "type": "Identifier",
153                          "name": "b",
154                          "decorators": [],
155                          "loc": {
156                            "start": {
157                              "line": 17,
158                              "column": 23
159                            },
160                            "end": {
161                              "line": 17,
162                              "column": 24
163                            }
164                          }
165                        },
166                        "value": {
167                          "type": "StringLiteral",
168                          "value": "foo",
169                          "loc": {
170                            "start": {
171                              "line": 17,
172                              "column": 26
173                            },
174                            "end": {
175                              "line": 17,
176                              "column": 31
177                            }
178                          }
179                        },
180                        "kind": "init",
181                        "loc": {
182                          "start": {
183                            "line": 17,
184                            "column": 23
185                          },
186                          "end": {
187                            "line": 17,
188                            "column": 31
189                          }
190                        }
191                      }
192                    ],
193                    "loc": {
194                      "start": {
195                        "line": 17,
196                        "column": 21
197                      },
198                      "end": {
199                        "line": 17,
200                        "column": 33
201                      }
202                    }
203                  },
204                  "loc": {
205                    "start": {
206                      "line": 17,
207                      "column": 10
208                    },
209                    "end": {
210                      "line": 17,
211                      "column": 33
212                    }
213                  }
214                },
215                "kind": "init",
216                "loc": {
217                  "start": {
218                    "line": 17,
219                    "column": 7
220                  },
221                  "end": {
222                    "line": 17,
223                    "column": 33
224                  }
225                }
226              }
227            ],
228            "loc": {
229              "start": {
230                "line": 17,
231                "column": 5
232              },
233              "end": {
234                "line": 17,
235                "column": 35
236              }
237            }
238          },
239          "init": {
240            "type": "ObjectExpression",
241            "properties": [
242              {
243                "type": "Property",
244                "method": false,
245                "shorthand": false,
246                "computed": false,
247                "key": {
248                  "type": "Identifier",
249                  "name": "a",
250                  "decorators": [],
251                  "loc": {
252                    "start": {
253                      "line": 17,
254                      "column": 40
255                    },
256                    "end": {
257                      "line": 17,
258                      "column": 41
259                    }
260                  }
261                },
262                "value": {
263                  "type": "ObjectExpression",
264                  "properties": [
265                    {
266                      "type": "Property",
267                      "method": false,
268                      "shorthand": false,
269                      "computed": false,
270                      "key": {
271                        "type": "Identifier",
272                        "name": "b",
273                        "decorators": [],
274                        "loc": {
275                          "start": {
276                            "line": 17,
277                            "column": 45
278                          },
279                          "end": {
280                            "line": 17,
281                            "column": 46
282                          }
283                        }
284                      },
285                      "value": {
286                        "type": "BooleanLiteral",
287                        "value": true,
288                        "loc": {
289                          "start": {
290                            "line": 17,
291                            "column": 48
292                          },
293                          "end": {
294                            "line": 17,
295                            "column": 52
296                          }
297                        }
298                      },
299                      "kind": "init",
300                      "loc": {
301                        "start": {
302                          "line": 17,
303                          "column": 45
304                        },
305                        "end": {
306                          "line": 17,
307                          "column": 52
308                        }
309                      }
310                    }
311                  ],
312                  "loc": {
313                    "start": {
314                      "line": 17,
315                      "column": 43
316                    },
317                    "end": {
318                      "line": 17,
319                      "column": 54
320                    }
321                  }
322                },
323                "kind": "init",
324                "loc": {
325                  "start": {
326                    "line": 17,
327                    "column": 40
328                  },
329                  "end": {
330                    "line": 17,
331                    "column": 54
332                  }
333                }
334              }
335            ],
336            "loc": {
337              "start": {
338                "line": 17,
339                "column": 38
340              },
341              "end": {
342                "line": 17,
343                "column": 56
344              }
345            }
346          },
347          "loc": {
348            "start": {
349              "line": 17,
350              "column": 5
351            },
352            "end": {
353              "line": 17,
354              "column": 56
355            }
356          }
357        }
358      ],
359      "kind": "var",
360      "loc": {
361        "start": {
362          "line": 17,
363          "column": 1
364        },
365        "end": {
366          "line": 17,
367          "column": 57
368        }
369      }
370    }
371  ],
372  "loc": {
373    "start": {
374      "line": 1,
375      "column": 1
376    },
377    "end": {
378      "line": 17,
379      "column": 57
380    }
381  }
382}
383TypeError: Property a does not exist on type { b: boolean; } | { b: string; }. [objectDestructuring11.ts:17:10]
384