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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            "typeAnnotation": {
13              "type": "TSTupleType",
14              "elementTypes": [
15                {
16                  "type": "TSNumberKeyword",
17                  "loc": {
18                    "start": {
19                      "line": 17,
20                      "column": 9
21                    },
22                    "end": {
23                      "line": 17,
24                      "column": 16
25                    }
26                  }
27                },
28                {
29                  "type": "TSNumberKeyword",
30                  "loc": {
31                    "start": {
32                      "line": 17,
33                      "column": 17
34                    },
35                    "end": {
36                      "line": 17,
37                      "column": 24
38                    }
39                  }
40                },
41                {
42                  "type": "TSStringKeyword",
43                  "loc": {
44                    "start": {
45                      "line": 17,
46                      "column": 25
47                    },
48                    "end": {
49                      "line": 17,
50                      "column": 32
51                    }
52                  }
53                }
54              ],
55              "loc": {
56                "start": {
57                  "line": 17,
58                  "column": 8
59                },
60                "end": {
61                  "line": 17,
62                  "column": 32
63                }
64              }
65            },
66            "decorators": [],
67            "loc": {
68              "start": {
69                "line": 17,
70                "column": 5
71              },
72              "end": {
73                "line": 17,
74                "column": 6
75              }
76            }
77          },
78          "init": {
79            "type": "ArrayExpression",
80            "elements": [
81              {
82                "type": "NumberLiteral",
83                "value": 1,
84                "loc": {
85                  "start": {
86                    "line": 17,
87                    "column": 36
88                  },
89                  "end": {
90                    "line": 17,
91                    "column": 37
92                  }
93                }
94              },
95              {
96                "type": "NumberLiteral",
97                "value": 2,
98                "loc": {
99                  "start": {
100                    "line": 17,
101                    "column": 39
102                  },
103                  "end": {
104                    "line": 17,
105                    "column": 40
106                  }
107                }
108              },
109              {
110                "type": "StringLiteral",
111                "value": "foo",
112                "loc": {
113                  "start": {
114                    "line": 17,
115                    "column": 42
116                  },
117                  "end": {
118                    "line": 17,
119                    "column": 47
120                  }
121                }
122              }
123            ],
124            "loc": {
125              "start": {
126                "line": 17,
127                "column": 35
128              },
129              "end": {
130                "line": 17,
131                "column": 48
132              }
133            }
134          },
135          "loc": {
136            "start": {
137              "line": 17,
138              "column": 5
139            },
140            "end": {
141              "line": 17,
142              "column": 48
143            }
144          }
145        }
146      ],
147      "kind": "var",
148      "loc": {
149        "start": {
150          "line": 17,
151          "column": 1
152        },
153        "end": {
154          "line": 17,
155          "column": 49
156        }
157      }
158    },
159    {
160      "type": "FunctionDeclaration",
161      "function": {
162        "type": "ScriptFunction",
163        "id": {
164          "type": "Identifier",
165          "name": "b",
166          "decorators": [],
167          "loc": {
168            "start": {
169              "line": 19,
170              "column": 10
171            },
172            "end": {
173              "line": 19,
174              "column": 11
175            }
176          }
177        },
178        "generator": false,
179        "async": false,
180        "expression": false,
181        "params": [
182          {
183            "type": "Identifier",
184            "name": "c",
185            "typeAnnotation": {
186              "type": "TSTypeQuery",
187              "exprName": {
188                "type": "Identifier",
189                "name": "a",
190                "decorators": [],
191                "loc": {
192                  "start": {
193                    "line": 19,
194                    "column": 22
195                  },
196                  "end": {
197                    "line": 19,
198                    "column": 23
199                  }
200                }
201              },
202              "loc": {
203                "start": {
204                  "line": 19,
205                  "column": 15
206                },
207                "end": {
208                  "line": 19,
209                  "column": 23
210                }
211              }
212            },
213            "decorators": [],
214            "loc": {
215              "start": {
216                "line": 19,
217                "column": 12
218              },
219              "end": {
220                "line": 19,
221                "column": 13
222              }
223            }
224          }
225        ],
226        "body": {
227          "type": "BlockStatement",
228          "statements": [],
229          "loc": {
230            "start": {
231              "line": 19,
232              "column": 25
233            },
234            "end": {
235              "line": 21,
236              "column": 2
237            }
238          }
239        },
240        "loc": {
241          "start": {
242            "line": 19,
243            "column": 1
244          },
245          "end": {
246            "line": 21,
247            "column": 2
248          }
249        }
250      },
251      "loc": {
252        "start": {
253          "line": 19,
254          "column": 1
255        },
256        "end": {
257          "line": 21,
258          "column": 2
259        }
260      }
261    },
262    {
263      "type": "ExpressionStatement",
264      "expression": {
265        "type": "CallExpression",
266        "callee": {
267          "type": "Identifier",
268          "name": "b",
269          "decorators": [],
270          "loc": {
271            "start": {
272              "line": 23,
273              "column": 1
274            },
275            "end": {
276              "line": 23,
277              "column": 2
278            }
279          }
280        },
281        "arguments": [
282          {
283            "type": "ArrayExpression",
284            "elements": [
285              {
286                "type": "NumberLiteral",
287                "value": 1,
288                "loc": {
289                  "start": {
290                    "line": 23,
291                    "column": 4
292                  },
293                  "end": {
294                    "line": 23,
295                    "column": 5
296                  }
297                }
298              },
299              {
300                "type": "NumberLiteral",
301                "value": 2,
302                "loc": {
303                  "start": {
304                    "line": 23,
305                    "column": 7
306                  },
307                  "end": {
308                    "line": 23,
309                    "column": 8
310                  }
311                }
312              },
313              {
314                "type": "NumberLiteral",
315                "value": 3,
316                "loc": {
317                  "start": {
318                    "line": 23,
319                    "column": 10
320                  },
321                  "end": {
322                    "line": 23,
323                    "column": 11
324                  }
325                }
326              }
327            ],
328            "loc": {
329              "start": {
330                "line": 23,
331                "column": 3
332              },
333              "end": {
334                "line": 23,
335                "column": 12
336              }
337            }
338          }
339        ],
340        "optional": false,
341        "loc": {
342          "start": {
343            "line": 23,
344            "column": 1
345          },
346          "end": {
347            "line": 23,
348            "column": 13
349          }
350        }
351      },
352      "loc": {
353        "start": {
354          "line": 23,
355          "column": 1
356        },
357        "end": {
358          "line": 23,
359          "column": 14
360        }
361      }
362    }
363  ],
364  "loc": {
365    "start": {
366      "line": 1,
367      "column": 1
368    },
369    "end": {
370      "line": 23,
371      "column": 14
372    }
373  }
374}
375TypeError: Type 'number' is not assignable to type 'string'. [tupleAssignability13.ts:23:10]
376