• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1{
2  "type": "Program",
3  "statements": [
4    {
5      "type": "TSDeclareFunction",
6      "function": {
7        "type": "ScriptFunction",
8        "id": {
9          "type": "Identifier",
10          "name": "foo",
11          "decorators": [],
12          "loc": {
13            "start": {
14              "line": 17,
15              "column": 10
16            },
17            "end": {
18              "line": 17,
19              "column": 13
20            }
21          }
22        },
23        "generator": false,
24        "async": false,
25        "expression": false,
26        "params": [
27          {
28            "type": "Identifier",
29            "name": "a",
30            "typeAnnotation": {
31              "type": "TSNumberKeyword",
32              "loc": {
33                "start": {
34                  "line": 17,
35                  "column": 17
36                },
37                "end": {
38                  "line": 17,
39                  "column": 23
40                }
41              }
42            },
43            "decorators": [],
44            "loc": {
45              "start": {
46                "line": 17,
47                "column": 14
48              },
49              "end": {
50                "line": 17,
51                "column": 15
52              }
53            }
54          },
55          {
56            "type": "Identifier",
57            "name": "b",
58            "typeAnnotation": {
59              "type": "TSStringKeyword",
60              "loc": {
61                "start": {
62                  "line": 17,
63                  "column": 29
64                },
65                "end": {
66                  "line": 17,
67                  "column": 35
68                }
69              }
70            },
71            "optional": true,
72            "decorators": [],
73            "loc": {
74              "start": {
75                "line": 17,
76                "column": 25
77              },
78              "end": {
79                "line": 17,
80                "column": 26
81              }
82            }
83          }
84        ],
85        "returnType": {
86          "type": "TSNumberKeyword",
87          "loc": {
88            "start": {
89              "line": 17,
90              "column": 38
91            },
92            "end": {
93              "line": 17,
94              "column": 44
95            }
96          }
97        },
98        "loc": {
99          "start": {
100            "line": 17,
101            "column": 1
102          },
103          "end": {
104            "line": 17,
105            "column": 45
106          }
107        }
108      },
109      "loc": {
110        "start": {
111          "line": 17,
112          "column": 1
113        },
114        "end": {
115          "line": 17,
116          "column": 45
117        }
118      }
119    },
120    {
121      "type": "TSDeclareFunction",
122      "function": {
123        "type": "ScriptFunction",
124        "id": {
125          "type": "Identifier",
126          "name": "foo",
127          "decorators": [],
128          "loc": {
129            "start": {
130              "line": 18,
131              "column": 10
132            },
133            "end": {
134              "line": 18,
135              "column": 13
136            }
137          }
138        },
139        "generator": false,
140        "async": false,
141        "expression": false,
142        "params": [
143          {
144            "type": "Identifier",
145            "name": "a",
146            "typeAnnotation": {
147              "type": "TSUnionType",
148              "types": [
149                {
150                  "type": "TSStringKeyword",
151                  "loc": {
152                    "start": {
153                      "line": 18,
154                      "column": 17
155                    },
156                    "end": {
157                      "line": 18,
158                      "column": 23
159                    }
160                  }
161                },
162                {
163                  "type": "TSNumberKeyword",
164                  "loc": {
165                    "start": {
166                      "line": 18,
167                      "column": 26
168                    },
169                    "end": {
170                      "line": 18,
171                      "column": 32
172                    }
173                  }
174                }
175              ],
176              "loc": {
177                "start": {
178                  "line": 18,
179                  "column": 17
180                },
181                "end": {
182                  "line": 18,
183                  "column": 32
184                }
185              }
186            },
187            "decorators": [],
188            "loc": {
189              "start": {
190                "line": 18,
191                "column": 14
192              },
193              "end": {
194                "line": 18,
195                "column": 15
196              }
197            }
198          },
199          {
200            "type": "Identifier",
201            "name": "b",
202            "typeAnnotation": {
203              "type": "TSStringKeyword",
204              "loc": {
205                "start": {
206                  "line": 18,
207                  "column": 37
208                },
209                "end": {
210                  "line": 18,
211                  "column": 43
212                }
213              }
214            },
215            "decorators": [],
216            "loc": {
217              "start": {
218                "line": 18,
219                "column": 34
220              },
221              "end": {
222                "line": 18,
223                "column": 35
224              }
225            }
226          },
227          {
228            "type": "Identifier",
229            "name": "c",
230            "typeAnnotation": {
231              "type": "TSNumberKeyword",
232              "loc": {
233                "start": {
234                  "line": 18,
235                  "column": 48
236                },
237                "end": {
238                  "line": 18,
239                  "column": 54
240                }
241              }
242            },
243            "decorators": [],
244            "loc": {
245              "start": {
246                "line": 18,
247                "column": 45
248              },
249              "end": {
250                "line": 18,
251                "column": 46
252              }
253            }
254          }
255        ],
256        "returnType": {
257          "type": "TSNumberKeyword",
258          "loc": {
259            "start": {
260              "line": 18,
261              "column": 57
262            },
263            "end": {
264              "line": 18,
265              "column": 63
266            }
267          }
268        },
269        "loc": {
270          "start": {
271            "line": 18,
272            "column": 1
273          },
274          "end": {
275            "line": 18,
276            "column": 64
277          }
278        }
279      },
280      "loc": {
281        "start": {
282          "line": 18,
283          "column": 1
284        },
285        "end": {
286          "line": 18,
287          "column": 64
288        }
289      }
290    },
291    {
292      "type": "FunctionDeclaration",
293      "function": {
294        "type": "ScriptFunction",
295        "id": {
296          "type": "Identifier",
297          "name": "foo",
298          "decorators": [],
299          "loc": {
300            "start": {
301              "line": 19,
302              "column": 10
303            },
304            "end": {
305              "line": 19,
306              "column": 13
307            }
308          }
309        },
310        "generator": false,
311        "async": false,
312        "expression": false,
313        "params": [
314          {
315            "type": "Identifier",
316            "name": "a",
317            "typeAnnotation": {
318              "type": "TSUnionType",
319              "types": [
320                {
321                  "type": "TSStringKeyword",
322                  "loc": {
323                    "start": {
324                      "line": 19,
325                      "column": 17
326                    },
327                    "end": {
328                      "line": 19,
329                      "column": 23
330                    }
331                  }
332                },
333                {
334                  "type": "TSNumberKeyword",
335                  "loc": {
336                    "start": {
337                      "line": 19,
338                      "column": 26
339                    },
340                    "end": {
341                      "line": 19,
342                      "column": 32
343                    }
344                  }
345                }
346              ],
347              "loc": {
348                "start": {
349                  "line": 19,
350                  "column": 17
351                },
352                "end": {
353                  "line": 19,
354                  "column": 32
355                }
356              }
357            },
358            "decorators": [],
359            "loc": {
360              "start": {
361                "line": 19,
362                "column": 14
363              },
364              "end": {
365                "line": 19,
366                "column": 15
367              }
368            }
369          },
370          {
371            "type": "Identifier",
372            "name": "b",
373            "typeAnnotation": {
374              "type": "TSStringKeyword",
375              "loc": {
376                "start": {
377                  "line": 19,
378                  "column": 38
379                },
380                "end": {
381                  "line": 19,
382                  "column": 44
383                }
384              }
385            },
386            "optional": true,
387            "decorators": [],
388            "loc": {
389              "start": {
390                "line": 19,
391                "column": 34
392              },
393              "end": {
394                "line": 19,
395                "column": 35
396              }
397            }
398          },
399          {
400            "type": "Identifier",
401            "name": "c",
402            "typeAnnotation": {
403              "type": "TSNumberKeyword",
404              "loc": {
405                "start": {
406                  "line": 19,
407                  "column": 50
408                },
409                "end": {
410                  "line": 19,
411                  "column": 56
412                }
413              }
414            },
415            "optional": true,
416            "decorators": [],
417            "loc": {
418              "start": {
419                "line": 19,
420                "column": 46
421              },
422              "end": {
423                "line": 19,
424                "column": 47
425              }
426            }
427          }
428        ],
429        "body": {
430          "type": "BlockStatement",
431          "statements": [
432            {
433              "type": "ReturnStatement",
434              "argument": {
435                "type": "NumberLiteral",
436                "value": 12,
437                "loc": {
438                  "start": {
439                    "line": 20,
440                    "column": 12
441                  },
442                  "end": {
443                    "line": 20,
444                    "column": 14
445                  }
446                }
447              },
448              "loc": {
449                "start": {
450                  "line": 20,
451                  "column": 5
452                },
453                "end": {
454                  "line": 20,
455                  "column": 15
456                }
457              }
458            }
459          ],
460          "loc": {
461            "start": {
462              "line": 19,
463              "column": 58
464            },
465            "end": {
466              "line": 21,
467              "column": 2
468            }
469          }
470        },
471        "loc": {
472          "start": {
473            "line": 19,
474            "column": 1
475          },
476          "end": {
477            "line": 21,
478            "column": 2
479          }
480        }
481      },
482      "loc": {
483        "start": {
484          "line": 19,
485          "column": 1
486        },
487        "end": {
488          "line": 21,
489          "column": 2
490        }
491      }
492    },
493    {
494      "type": "VariableDeclaration",
495      "declarations": [
496        {
497          "type": "VariableDeclarator",
498          "id": {
499            "type": "Identifier",
500            "name": "a",
501            "typeAnnotation": {
502              "type": "TSStringKeyword",
503              "loc": {
504                "start": {
505                  "line": 23,
506                  "column": 8
507                },
508                "end": {
509                  "line": 23,
510                  "column": 14
511                }
512              }
513            },
514            "decorators": [],
515            "loc": {
516              "start": {
517                "line": 23,
518                "column": 5
519              },
520              "end": {
521                "line": 23,
522                "column": 6
523              }
524            }
525          },
526          "init": {
527            "type": "CallExpression",
528            "callee": {
529              "type": "Identifier",
530              "name": "foo",
531              "decorators": [],
532              "loc": {
533                "start": {
534                  "line": 23,
535                  "column": 17
536                },
537                "end": {
538                  "line": 23,
539                  "column": 20
540                }
541              }
542            },
543            "arguments": [
544              {
545                "type": "NumberLiteral",
546                "value": 2,
547                "loc": {
548                  "start": {
549                    "line": 23,
550                    "column": 21
551                  },
552                  "end": {
553                    "line": 23,
554                    "column": 22
555                  }
556                }
557              }
558            ],
559            "optional": false,
560            "loc": {
561              "start": {
562                "line": 23,
563                "column": 17
564              },
565              "end": {
566                "line": 23,
567                "column": 23
568              }
569            }
570          },
571          "loc": {
572            "start": {
573              "line": 23,
574              "column": 5
575            },
576            "end": {
577              "line": 23,
578              "column": 23
579            }
580          }
581        }
582      ],
583      "kind": "var",
584      "loc": {
585        "start": {
586          "line": 23,
587          "column": 1
588        },
589        "end": {
590          "line": 23,
591          "column": 24
592        }
593      }
594    }
595  ],
596  "loc": {
597    "start": {
598      "line": 1,
599      "column": 1
600    },
601    "end": {
602      "line": 23,
603      "column": 24
604    }
605  }
606}
607TypeError: Type 'number' is not assignable to type 'string'. [functionOverload4.ts:23:5]
608