• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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            "typeAnnotation": {
13              "type": "TSTupleType",
14              "elementTypes": [
15                {
16                  "type": "TSNamedTupleMember",
17                  "elementType": {
18                    "type": "TSNumberKeyword",
19                    "loc": {
20                      "start": {
21                        "line": 17,
22                        "column": 12
23                      },
24                      "end": {
25                        "line": 17,
26                        "column": 18
27                      }
28                    }
29                  },
30                  "label": {
31                    "type": "Identifier",
32                    "name": "a",
33                    "decorators": [],
34                    "loc": {
35                      "start": {
36                        "line": 17,
37                        "column": 9
38                      },
39                      "end": {
40                        "line": 17,
41                        "column": 10
42                      }
43                    }
44                  },
45                  "loc": {
46                    "start": {
47                      "line": 17,
48                      "column": 9
49                    },
50                    "end": {
51                      "line": 17,
52                      "column": 19
53                    }
54                  }
55                },
56                {
57                  "type": "TSNamedTupleMember",
58                  "elementType": {
59                    "type": "TSStringKeyword",
60                    "loc": {
61                      "start": {
62                        "line": 17,
63                        "column": 23
64                      },
65                      "end": {
66                        "line": 17,
67                        "column": 29
68                      }
69                    }
70                  },
71                  "label": {
72                    "type": "Identifier",
73                    "name": "b",
74                    "decorators": [],
75                    "loc": {
76                      "start": {
77                        "line": 17,
78                        "column": 20
79                      },
80                      "end": {
81                        "line": 17,
82                        "column": 21
83                      }
84                    }
85                  },
86                  "loc": {
87                    "start": {
88                      "line": 17,
89                      "column": 20
90                    },
91                    "end": {
92                      "line": 17,
93                      "column": 30
94                    }
95                  }
96                },
97                {
98                  "type": "TSNamedTupleMember",
99                  "elementType": {
100                    "type": "TSNumberKeyword",
101                    "loc": {
102                      "start": {
103                        "line": 17,
104                        "column": 35
105                      },
106                      "end": {
107                        "line": 17,
108                        "column": 41
109                      }
110                    }
111                  },
112                  "label": {
113                    "type": "Identifier",
114                    "name": "c",
115                    "decorators": [],
116                    "loc": {
117                      "start": {
118                        "line": 17,
119                        "column": 31
120                      },
121                      "end": {
122                        "line": 17,
123                        "column": 32
124                      }
125                    }
126                  },
127                  "optional": true,
128                  "loc": {
129                    "start": {
130                      "line": 17,
131                      "column": 31
132                    },
133                    "end": {
134                      "line": 17,
135                      "column": 42
136                    }
137                  }
138                }
139              ],
140              "loc": {
141                "start": {
142                  "line": 17,
143                  "column": 8
144                },
145                "end": {
146                  "line": 17,
147                  "column": 42
148                }
149              }
150            },
151            "decorators": [],
152            "loc": {
153              "start": {
154                "line": 17,
155                "column": 5
156              },
157              "end": {
158                "line": 17,
159                "column": 6
160              }
161            }
162          },
163          "init": null,
164          "loc": {
165            "start": {
166              "line": 17,
167              "column": 5
168            },
169            "end": {
170              "line": 17,
171              "column": 6
172            }
173          }
174        }
175      ],
176      "kind": "var",
177      "loc": {
178        "start": {
179          "line": 17,
180          "column": 1
181        },
182        "end": {
183          "line": 17,
184          "column": 43
185        }
186      }
187    },
188    {
189      "type": "VariableDeclaration",
190      "declarations": [
191        {
192          "type": "VariableDeclarator",
193          "id": {
194            "type": "Identifier",
195            "name": "b",
196            "typeAnnotation": {
197              "type": "TSTupleType",
198              "elementTypes": [
199                {
200                  "type": "TSNamedTupleMember",
201                  "elementType": {
202                    "type": "TSNumberKeyword",
203                    "loc": {
204                      "start": {
205                        "line": 18,
206                        "column": 12
207                      },
208                      "end": {
209                        "line": 18,
210                        "column": 18
211                      }
212                    }
213                  },
214                  "label": {
215                    "type": "Identifier",
216                    "name": "a",
217                    "decorators": [],
218                    "loc": {
219                      "start": {
220                        "line": 18,
221                        "column": 9
222                      },
223                      "end": {
224                        "line": 18,
225                        "column": 10
226                      }
227                    }
228                  },
229                  "loc": {
230                    "start": {
231                      "line": 18,
232                      "column": 9
233                    },
234                    "end": {
235                      "line": 18,
236                      "column": 19
237                    }
238                  }
239                },
240                {
241                  "type": "TSNamedTupleMember",
242                  "elementType": {
243                    "type": "TSStringKeyword",
244                    "loc": {
245                      "start": {
246                        "line": 18,
247                        "column": 23
248                      },
249                      "end": {
250                        "line": 18,
251                        "column": 29
252                      }
253                    }
254                  },
255                  "label": {
256                    "type": "Identifier",
257                    "name": "b",
258                    "decorators": [],
259                    "loc": {
260                      "start": {
261                        "line": 18,
262                        "column": 20
263                      },
264                      "end": {
265                        "line": 18,
266                        "column": 21
267                      }
268                    }
269                  },
270                  "loc": {
271                    "start": {
272                      "line": 18,
273                      "column": 20
274                    },
275                    "end": {
276                      "line": 18,
277                      "column": 30
278                    }
279                  }
280                },
281                {
282                  "type": "TSNamedTupleMember",
283                  "elementType": {
284                    "type": "TSNumberKeyword",
285                    "loc": {
286                      "start": {
287                        "line": 18,
288                        "column": 34
289                      },
290                      "end": {
291                        "line": 18,
292                        "column": 40
293                      }
294                    }
295                  },
296                  "label": {
297                    "type": "Identifier",
298                    "name": "c",
299                    "decorators": [],
300                    "loc": {
301                      "start": {
302                        "line": 18,
303                        "column": 31
304                      },
305                      "end": {
306                        "line": 18,
307                        "column": 32
308                      }
309                    }
310                  },
311                  "loc": {
312                    "start": {
313                      "line": 18,
314                      "column": 31
315                    },
316                    "end": {
317                      "line": 18,
318                      "column": 41
319                    }
320                  }
321                },
322                {
323                  "type": "TSNamedTupleMember",
324                  "elementType": {
325                    "type": "TSNumberKeyword",
326                    "loc": {
327                      "start": {
328                        "line": 18,
329                        "column": 45
330                      },
331                      "end": {
332                        "line": 18,
333                        "column": 51
334                      }
335                    }
336                  },
337                  "label": {
338                    "type": "Identifier",
339                    "name": "d",
340                    "decorators": [],
341                    "loc": {
342                      "start": {
343                        "line": 18,
344                        "column": 42
345                      },
346                      "end": {
347                        "line": 18,
348                        "column": 43
349                      }
350                    }
351                  },
352                  "loc": {
353                    "start": {
354                      "line": 18,
355                      "column": 42
356                    },
357                    "end": {
358                      "line": 18,
359                      "column": 52
360                    }
361                  }
362                }
363              ],
364              "loc": {
365                "start": {
366                  "line": 18,
367                  "column": 8
368                },
369                "end": {
370                  "line": 18,
371                  "column": 52
372                }
373              }
374            },
375            "decorators": [],
376            "loc": {
377              "start": {
378                "line": 18,
379                "column": 5
380              },
381              "end": {
382                "line": 18,
383                "column": 6
384              }
385            }
386          },
387          "init": null,
388          "loc": {
389            "start": {
390              "line": 18,
391              "column": 5
392            },
393            "end": {
394              "line": 18,
395              "column": 6
396            }
397          }
398        }
399      ],
400      "kind": "var",
401      "loc": {
402        "start": {
403          "line": 18,
404          "column": 1
405        },
406        "end": {
407          "line": 18,
408          "column": 53
409        }
410      }
411    },
412    {
413      "type": "ExpressionStatement",
414      "expression": {
415        "type": "AssignmentExpression",
416        "operator": "=",
417        "left": {
418          "type": "Identifier",
419          "name": "a",
420          "decorators": [],
421          "loc": {
422            "start": {
423              "line": 19,
424              "column": 1
425            },
426            "end": {
427              "line": 19,
428              "column": 2
429            }
430          }
431        },
432        "right": {
433          "type": "Identifier",
434          "name": "b",
435          "decorators": [],
436          "loc": {
437            "start": {
438              "line": 19,
439              "column": 5
440            },
441            "end": {
442              "line": 19,
443              "column": 6
444            }
445          }
446        },
447        "loc": {
448          "start": {
449            "line": 19,
450            "column": 1
451          },
452          "end": {
453            "line": 19,
454            "column": 6
455          }
456        }
457      },
458      "loc": {
459        "start": {
460          "line": 19,
461          "column": 1
462        },
463        "end": {
464          "line": 19,
465          "column": 7
466        }
467      }
468    }
469  ],
470  "loc": {
471    "start": {
472      "line": 1,
473      "column": 1
474    },
475    "end": {
476      "line": 19,
477      "column": 7
478    }
479  }
480}
481TypeError: Type '[a: number, b: string, c: number, d: number]' is not assignable to type '[a: number, b: string, c?: number]'. [tupleAssignability12.ts:19:1]
482