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1{
2  "type": "Program",
3  "statements": [
4    {
5      "type": "VariableDeclaration",
6      "declarations": [
7        {
8          "type": "VariableDeclarator",
9          "id": {
10            "type": "Identifier",
11            "name": "a",
12            "decorators": [],
13            "loc": {
14              "start": {
15                "line": 17,
16                "column": 5
17              },
18              "end": {
19                "line": 17,
20                "column": 6
21              }
22            }
23          },
24          "init": {
25            "type": "ObjectExpression",
26            "properties": [
27              {
28                "type": "Property",
29                "method": false,
30                "shorthand": false,
31                "computed": false,
32                "key": {
33                  "type": "Identifier",
34                  "name": "a",
35                  "decorators": [],
36                  "loc": {
37                    "start": {
38                      "line": 17,
39                      "column": 11
40                    },
41                    "end": {
42                      "line": 17,
43                      "column": 12
44                    }
45                  }
46                },
47                "value": {
48                  "type": "NumberLiteral",
49                  "value": 5,
50                  "loc": {
51                    "start": {
52                      "line": 17,
53                      "column": 14
54                    },
55                    "end": {
56                      "line": 17,
57                      "column": 15
58                    }
59                  }
60                },
61                "kind": "init",
62                "loc": {
63                  "start": {
64                    "line": 17,
65                    "column": 11
66                  },
67                  "end": {
68                    "line": 17,
69                    "column": 15
70                  }
71                }
72              },
73              {
74                "type": "Property",
75                "method": false,
76                "shorthand": false,
77                "computed": false,
78                "key": {
79                  "type": "Identifier",
80                  "name": "b",
81                  "decorators": [],
82                  "loc": {
83                    "start": {
84                      "line": 17,
85                      "column": 17
86                    },
87                    "end": {
88                      "line": 17,
89                      "column": 18
90                    }
91                  }
92                },
93                "value": {
94                  "type": "StringLiteral",
95                  "value": "foo",
96                  "loc": {
97                    "start": {
98                      "line": 17,
99                      "column": 20
100                    },
101                    "end": {
102                      "line": 17,
103                      "column": 25
104                    }
105                  }
106                },
107                "kind": "init",
108                "loc": {
109                  "start": {
110                    "line": 17,
111                    "column": 17
112                  },
113                  "end": {
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115                    "column": 25
116                  }
117                }
118              }
119            ],
120            "loc": {
121              "start": {
122                "line": 17,
123                "column": 9
124              },
125              "end": {
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127                "column": 27
128              }
129            }
130          },
131          "loc": {
132            "start": {
133              "line": 17,
134              "column": 5
135            },
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138              "column": 27
139            }
140          }
141        }
142      ],
143      "kind": "var",
144      "loc": {
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146          "line": 17,
147          "column": 1
148        },
149        "end": {
150          "line": 17,
151          "column": 28
152        }
153      }
154    },
155    {
156      "type": "VariableDeclaration",
157      "declarations": [
158        {
159          "type": "VariableDeclarator",
160          "id": {
161            "type": "Identifier",
162            "name": "b",
163            "typeAnnotation": {
164              "type": "TSTypeLiteral",
165              "members": [
166                {
167                  "type": "TSPropertySignature",
168                  "computed": false,
169                  "optional": false,
170                  "readonly": false,
171                  "key": {
172                    "type": "Identifier",
173                    "name": "a",
174                    "decorators": [],
175                    "loc": {
176                      "start": {
177                        "line": 18,
178                        "column": 10
179                      },
180                      "end": {
181                        "line": 18,
182                        "column": 11
183                      }
184                    }
185                  },
186                  "typeAnnotation": {
187                    "type": "TSNumberKeyword",
188                    "loc": {
189                      "start": {
190                        "line": 18,
191                        "column": 13
192                      },
193                      "end": {
194                        "line": 18,
195                        "column": 19
196                      }
197                    }
198                  },
199                  "loc": {
200                    "start": {
201                      "line": 18,
202                      "column": 10
203                    },
204                    "end": {
205                      "line": 18,
206                      "column": 20
207                    }
208                  }
209                },
210                {
211                  "type": "TSPropertySignature",
212                  "computed": false,
213                  "optional": false,
214                  "readonly": false,
215                  "key": {
216                    "type": "Identifier",
217                    "name": "b",
218                    "decorators": [],
219                    "loc": {
220                      "start": {
221                        "line": 18,
222                        "column": 21
223                      },
224                      "end": {
225                        "line": 18,
226                        "column": 22
227                      }
228                    }
229                  },
230                  "typeAnnotation": {
231                    "type": "TSStringKeyword",
232                    "loc": {
233                      "start": {
234                        "line": 18,
235                        "column": 24
236                      },
237                      "end": {
238                        "line": 18,
239                        "column": 30
240                      }
241                    }
242                  },
243                  "loc": {
244                    "start": {
245                      "line": 18,
246                      "column": 21
247                    },
248                    "end": {
249                      "line": 18,
250                      "column": 31
251                    }
252                  }
253                },
254                {
255                  "type": "TSPropertySignature",
256                  "computed": false,
257                  "optional": false,
258                  "readonly": false,
259                  "key": {
260                    "type": "Identifier",
261                    "name": "c",
262                    "decorators": [],
263                    "loc": {
264                      "start": {
265                        "line": 18,
266                        "column": 32
267                      },
268                      "end": {
269                        "line": 18,
270                        "column": 33
271                      }
272                    }
273                  },
274                  "typeAnnotation": {
275                    "type": "TSNumberKeyword",
276                    "loc": {
277                      "start": {
278                        "line": 18,
279                        "column": 35
280                      },
281                      "end": {
282                        "line": 18,
283                        "column": 41
284                      }
285                    }
286                  },
287                  "loc": {
288                    "start": {
289                      "line": 18,
290                      "column": 32
291                    },
292                    "end": {
293                      "line": 18,
294                      "column": 42
295                    }
296                  }
297                },
298                {
299                  "type": "TSPropertySignature",
300                  "computed": false,
301                  "optional": false,
302                  "readonly": false,
303                  "key": {
304                    "type": "Identifier",
305                    "name": "d",
306                    "decorators": [],
307                    "loc": {
308                      "start": {
309                        "line": 18,
310                        "column": 43
311                      },
312                      "end": {
313                        "line": 18,
314                        "column": 44
315                      }
316                    }
317                  },
318                  "typeAnnotation": {
319                    "type": "TSUnionType",
320                    "types": [
321                      {
322                        "type": "TSBooleanKeyword",
323                        "loc": {
324                          "start": {
325                            "line": 18,
326                            "column": 46
327                          },
328                          "end": {
329                            "line": 18,
330                            "column": 53
331                          }
332                        }
333                      },
334                      {
335                        "type": "TSStringKeyword",
336                        "loc": {
337                          "start": {
338                            "line": 18,
339                            "column": 56
340                          },
341                          "end": {
342                            "line": 18,
343                            "column": 62
344                          }
345                        }
346                      }
347                    ],
348                    "loc": {
349                      "start": {
350                        "line": 18,
351                        "column": 46
352                      },
353                      "end": {
354                        "line": 18,
355                        "column": 62
356                      }
357                    }
358                  },
359                  "loc": {
360                    "start": {
361                      "line": 18,
362                      "column": 43
363                    },
364                    "end": {
365                      "line": 18,
366                      "column": 64
367                    }
368                  }
369                }
370              ],
371              "loc": {
372                "start": {
373                  "line": 18,
374                  "column": 8
375                },
376                "end": {
377                  "line": 18,
378                  "column": 64
379                }
380              }
381            },
382            "decorators": [],
383            "loc": {
384              "start": {
385                "line": 18,
386                "column": 5
387              },
388              "end": {
389                "line": 18,
390                "column": 6
391              }
392            }
393          },
394          "init": {
395            "type": "ObjectExpression",
396            "properties": [
397              {
398                "type": "SpreadElement",
399                "argument": {
400                  "type": "Identifier",
401                  "name": "a",
402                  "decorators": [],
403                  "loc": {
404                    "start": {
405                      "line": 18,
406                      "column": 72
407                    },
408                    "end": {
409                      "line": 18,
410                      "column": 73
411                    }
412                  }
413                },
414                "loc": {
415                  "start": {
416                    "line": 18,
417                    "column": 69
418                  },
419                  "end": {
420                    "line": 18,
421                    "column": 73
422                  }
423                }
424              },
425              {
426                "type": "Property",
427                "method": false,
428                "shorthand": false,
429                "computed": false,
430                "key": {
431                  "type": "Identifier",
432                  "name": "c",
433                  "decorators": [],
434                  "loc": {
435                    "start": {
436                      "line": 18,
437                      "column": 75
438                    },
439                    "end": {
440                      "line": 18,
441                      "column": 76
442                    }
443                  }
444                },
445                "value": {
446                  "type": "NumberLiteral",
447                  "value": 5,
448                  "loc": {
449                    "start": {
450                      "line": 18,
451                      "column": 78
452                    },
453                    "end": {
454                      "line": 18,
455                      "column": 79
456                    }
457                  }
458                },
459                "kind": "init",
460                "loc": {
461                  "start": {
462                    "line": 18,
463                    "column": 75
464                  },
465                  "end": {
466                    "line": 18,
467                    "column": 79
468                  }
469                }
470              },
471              {
472                "type": "Property",
473                "method": false,
474                "shorthand": false,
475                "computed": false,
476                "key": {
477                  "type": "Identifier",
478                  "name": "d",
479                  "decorators": [],
480                  "loc": {
481                    "start": {
482                      "line": 18,
483                      "column": 81
484                    },
485                    "end": {
486                      "line": 18,
487                      "column": 82
488                    }
489                  }
490                },
491                "value": {
492                  "type": "NumberLiteral",
493                  "value": 6,
494                  "loc": {
495                    "start": {
496                      "line": 18,
497                      "column": 84
498                    },
499                    "end": {
500                      "line": 18,
501                      "column": 85
502                    }
503                  }
504                },
505                "kind": "init",
506                "loc": {
507                  "start": {
508                    "line": 18,
509                    "column": 81
510                  },
511                  "end": {
512                    "line": 18,
513                    "column": 85
514                  }
515                }
516              }
517            ],
518            "loc": {
519              "start": {
520                "line": 18,
521                "column": 67
522              },
523              "end": {
524                "line": 18,
525                "column": 87
526              }
527            }
528          },
529          "loc": {
530            "start": {
531              "line": 18,
532              "column": 5
533            },
534            "end": {
535              "line": 18,
536              "column": 87
537            }
538          }
539        }
540      ],
541      "kind": "var",
542      "loc": {
543        "start": {
544          "line": 18,
545          "column": 1
546        },
547        "end": {
548          "line": 18,
549          "column": 88
550        }
551      }
552    }
553  ],
554  "loc": {
555    "start": {
556      "line": 1,
557      "column": 1
558    },
559    "end": {
560      "line": 18,
561      "column": 88
562    }
563  }
564}
565TypeError: Type 'number' is not assignable to type 'boolean | string'. [objectLiteralAssignability5.ts:18:81]
566