Idea: Can declaration emit synthesize imports?

[amcasey]

If an unimported type is referenced repeatedly, each reference will be qualified with the same import("path") expression. Cumulatively, these can significantly enlarge a declaration file.

Probably, this will be the first time we need to make non-local edits to a declaration file, which may substantially increase the code complexity. It should not, however, take much more time to execute (unless I'm missing something).

[amcasey]

@weswigham I'm pretty confident that this is a dup and I wouldn't be surprised to learn you already have a PR. 😉

[weswigham]

I remarked on it back when I first added support for emitting them: #24071 (comment) but I don't think I have a branch. At least not anymore, anyway.

[bosens-China]

@RyanCavanaugh
The user is dealing with a TypeScript file that generates several object properties. However, there is redundancy in how the object values are being generated, resulting in a bloated output.

The generated TypeScript declaration file (.d.ts) repeats similar structures for each object, leading to excessive duplication.

export default {
  "1": {
    "text": {
      "path": "assets\\program-data\\1\\lesson1\\data.json",
      "abbreviatedPath": "1\\lesson1\\data.json",
      "md5": "13d43bf648d4c8011eaf9c90089cbdcdfa54bbc2c904d1955dbdc45f9c2c2c53",
      "fileName": "data.json",
      "volume": "1",
      "lesson": "lesson1",
      "interface": {
        "id": 23659,
        "fileName": "data.json",
        "time": "2024-09-05T22:22:10.332+08:00",
        "url": "https://cdn.z.wiki/autoupload/20240905/IbtV/data.json",
        "uid": "@new-concept-english/source",
        "contentType": "application/octet-stream",
        "shareCode": null,
        "shareExpireDate": null,
        "size": "2.61 KB",
        "md5": "56ecf0cd0141672e98494dd896ed08fd"
      }
    },
    "additional": {
      "md5": "13d43bf648d4c8011eaf9c90089cbdcdfa54bbc2c904d1955dbdc45f9c2c2c53",
      "lesson": 1,
      "title": "Lesson 1 Excuse me! 对不起!"
    },
    "tapeEnglish": {
      "mp3": {
        "path": "assets\\program-data\\1\\lesson1\\tape-english\\course.mp3",
        "abbreviatedPath": "1\\lesson1\\tape-english\\course.mp3",
        "md5": "f2f5683bfaf749f3862e1e0723876ae8c00daad8b26c7469013260a0dc44ebcb",
        "fileName": "course.mp3",
        "volume": "1",
        "lesson": "lesson1",
        "interface": {
          "id": 23450,
          "fileName": "course.mp3",
          "time": "2024-09-03T21:08:13.513+08:00",
          "url": "https://cdn.z.wiki/autoupload/20240903/KB7o/course.mp3",
          "uid": "@new-concept-english/source",
          "contentType": "application/octet-stream",
          "shareCode": null,
          "shareExpireDate": null,
          "size": "645.94 KB"
        }
      },
      "lrc": {
        "path": "assets\\program-data\\1\\lesson1\\tape-english\\course.lrc",
        "abbreviatedPath": "1\\lesson1\\tape-english\\course.lrc",
        "md5": "97dc5f3b2a84a395b58c99144382c3dada351727c41e8043a88487bfe90f8940",
        "fileName": "course.lrc",
        "volume": "1",
        "lesson": "lesson1",
        "interface": {
          "id": 23449,
          "fileName": "course.lrc",
          "time": "2024-09-03T21:08:13.977+08:00",
          "url": "https://cdn.z.wiki/autoupload/20240903/kARy/course.lrc",
          "uid": "@new-concept-english/source",
          "contentType": "application/octet-stream",
          "shareCode": null,
          "shareExpireDate": null,
          "size": "474 B"
        }
      }
    },
    "tapeAmericanMusic": {
      "mp3": {
        "path": "assets\\program-data\\1\\lesson1\\tape-american-music\\course.mp3",
        "abbreviatedPath": "1\\lesson1\\tape-american-music\\course.mp3",
        "md5": "670f88e3f64ed1ec205fd20596679f2d8cb955f8ef5b63c0a6f3962f4d1d34ea",
        "fileName": "course.mp3",
        "volume": "1",
        "lesson": "lesson1",
        "interface": {
          "id": 23452,
          "fileName": "course.mp3",
          "time": "2024-09-03T21:08:16.770+08:00",
          "url": "https://cdn.z.wiki/autoupload/20240903/8d2K/course.mp3",
          "uid": "@new-concept-english/source",
          "contentType": "application/octet-stream",
          "shareCode": null,
          "shareExpireDate": null,
          "size": "799.94 KB"
        }
      },
      "lrc": {
        "path": "assets\\program-data\\1\\lesson1\\tape-american-music\\course.lrc",
        "abbreviatedPath": "1\\lesson1\\tape-american-music\\course.lrc",
        "md5": "6a07bc9eb1a5f030a63536970daefbc79c2bf7e6696fe0f383b4579d2291762a",
        "fileName": "course.lrc",
        "volume": "1",
        "lesson": "lesson1",
        "interface": {
          "id": 23451,
          "fileName": "course.lrc",
          "time": "2024-09-03T21:08:18.305+08:00",
          "url": "https://cdn.z.wiki/autoupload/20240903/IUNy/course.lrc",
          "uid": "@new-concept-english/source",
          "contentType": "application/octet-stream",
          "shareCode": null,
          "shareExpireDate": null,
          "size": "456 B"
        }
      }
    }
  },
  "3": {
    "text": {
      "path": "assets\\program-data\\1\\lesson3\\data.json",
      "abbreviatedPath": "1\\lesson3\\data.json",
      "md5": "6f6446a4c1d9885c203aa6f05c41c80562ab10eccbd451f25109ecffb98d6729",
      "fileName": "data.json",
      "volume": "1",
      "lesson": "lesson3",
      "interface": {
        "id": 23630,
        "fileName": "data.json",
        "time": "2024-09-05T22:14:59.210+08:00",
        "url": "https://cdn.z.wiki/autoupload/20240905/Tz9X/data.json",
        "uid": "@new-concept-english/source",
        "contentType": "application/octet-stream",
        "shareCode": null,
        "shareExpireDate": null,
        "size": "3.4 KB",
        "md5": "33ee8603cd566ee40e6dc9a6ea8ba8a1"
      }
    },
    "additional": {
      "md5": "6f6446a4c1d9885c203aa6f05c41c80562ab10eccbd451f25109ecffb98d6729",
      "lesson": 3,
      "title": "Lesson 3 Sorry, sir. 对不起，先生。"
    },
    "tapeEnglish": {
      "mp3": {
        "path": "assets\\program-data\\1\\lesson3\\tape-english\\course.mp3",
        "abbreviatedPath": "1\\lesson3\\tape-english\\course.mp3",
        "md5": "0ac96b790fe7904025554b45269dc09a5a56a161a15414df914958a3fb340753",
        "fileName": "course.mp3",
        "volume": "1",
        "lesson": "lesson3",
        "interface": {
          "id": 23317,
          "fileName": "course.mp3",
          "time": "2024-09-03T21:06:04.677+08:00",
          "url": "https://cdn.z.wiki/autoupload/20240903/wcUC/course.mp3",
          "uid": "@new-concept-english/source",
          "contentType": "application/octet-stream",
          "shareCode": null,
          "shareExpireDate": null,
          "size": "1.06 MB"
        }
      },
      "lrc": {
        "path": "assets\\program-data\\1\\lesson3\\tape-english\\course.lrc",
        "abbreviatedPath": "1\\lesson3\\tape-english\\course.lrc",
        "md5": "4728e26689eba1b5fb42c33760e532426301e54343704ae69c30068cb2d04a32",
        "fileName": "course.lrc",
        "volume": "1",
        "lesson": "lesson3",
        "interface": {
          "id": 23318,
          "fileName": "course.lrc",
          "time": "2024-09-03T21:06:04.678+08:00",
          "url": "https://cdn.z.wiki/autoupload/20240903/ck3S/course.lrc",
          "uid": "@new-concept-english/source",
          "contentType": "application/octet-stream",
          "shareCode": null,
          "shareExpireDate": null,
          "size": "676 B"
        }
      }
    },
    "tapeAmericanMusic": {
      "mp3": {
        "path": "assets\\program-data\\1\\lesson3\\tape-american-music\\course.mp3",
        "abbreviatedPath": "1\\lesson3\\tape-american-music\\course.mp3",
        "md5": "b1f3dc757cda97a19960bf52e1df661ad93645b9f3f35dbf7fca0e1551050e94",
        "fileName": "course.mp3",
        "volume": "1",
        "lesson": "lesson3",
        "interface": {
          "id": 23320,
          "fileName": "course.mp3",
          "time": "2024-09-03T21:06:06.681+08:00",
          "url": "https://cdn.z.wiki/autoupload/20240903/CytW/course.mp3",
          "uid": "@new-concept-english/source",
          "contentType": "application/octet-stream",
          "shareCode": null,
          "shareExpireDate": null,
          "size": "1.13 MB"
        }
      },
      "lrc": {
        "path": "assets\\program-data\\1\\lesson3\\tape-american-music\\course.lrc",
        "abbreviatedPath": "1\\lesson3\\tape-american-music\\course.lrc",
        "md5": "83b94c8bdb3bc463856aa465fc3510c43461ea343318e57586ca98759373f8a1",
        "fileName": "course.lrc",
        "volume": "1",
        "lesson": "lesson3",
        "interface": {
          "id": 23319,
          "fileName": "course.lrc",
          "time": "2024-09-03T21:06:05.807+08:00",
          "url": "https://cdn.z.wiki/autoupload/20240903/4XQj/course.lrc",
          "uid": "@new-concept-english/source",
          "contentType": "application/octet-stream",
          "shareCode": null,
          "shareExpireDate": null,
          "size": "658 B"
        }
      }
    }
  },
}

Generated d.ts

declare const _default: {
    "1": {
        text: {
            path: string;
            abbreviatedPath: string;
            md5: string;
            fileName: string;
            volume: string;
            lesson: string;
            interface: {
                id: number;
                fileName: string;
                time: string;
                url: string;
                uid: string;
                contentType: string;
                shareCode: null;
                shareExpireDate: null;
                size: string;
                md5: string;
            };
        };
        additional: {
            md5: string;
            lesson: number;
            title: string;
        };
        tapeEnglish: {
            mp3: {
                path: string;
                abbreviatedPath: string;
                md5: string;
                fileName: string;
                volume: string;
                lesson: string;
                interface: {
                    id: number;
                    fileName: string;
                    time: string;
                    url: string;
                    uid: string;
                    contentType: string;
                    shareCode: null;
                    shareExpireDate: null;
                    size: string;
                };
            };
            lrc: {
                path: string;
                abbreviatedPath: string;
                md5: string;
                fileName: string;
                volume: string;
                lesson: string;
                interface: {
                    id: number;
                    fileName: string;
                    time: string;
                    url: string;
                    uid: string;
                    contentType: string;
                    shareCode: null;
                    shareExpireDate: null;
                    size: string;
                };
            };
        };
        tapeAmericanMusic: {
            mp3: {
                path: string;
                abbreviatedPath: string;
                md5: string;
                fileName: string;
                volume: string;
                lesson: string;
                interface: {
                    id: number;
                    fileName: string;
                    time: string;
                    url: string;
                    uid: string;
                    contentType: string;
                    shareCode: null;
                    shareExpireDate: null;
                    size: string;
                };
            };
            lrc: {
                path: string;
                abbreviatedPath: string;
                md5: string;
                fileName: string;
                volume: string;
                lesson: string;
                interface: {
                    id: number;
                    fileName: string;
                    time: string;
                    url: string;
                    uid: string;
                    contentType: string;
                    shareCode: null;
                    shareExpireDate: null;
                    size: string;
                };
            };
        };
    };
    "3": {
        text: {
            path: string;
            abbreviatedPath: string;
            md5: string;
            fileName: string;
            volume: string;
            lesson: string;
            interface: {
                id: number;
                fileName: string;
                time: string;
                url: string;
                uid: string;
                contentType: string;
                shareCode: null;
                shareExpireDate: null;
                size: string;
                md5: string;
            };
        };
        additional: {
            md5: string;
            lesson: number;
            title: string;
        };
        tapeEnglish: {
            mp3: {
                path: string;
                abbreviatedPath: string;
                md5: string;
                fileName: string;
                volume: string;
                lesson: string;
                interface: {
                    id: number;
                    fileName: string;
                    time: string;
                    url: string;
                    uid: string;
                    contentType: string;
                    shareCode: null;
                    shareExpireDate: null;
                    size: string;
                };
            };
            lrc: {
                path: string;
                abbreviatedPath: string;
                md5: string;
                fileName: string;
                volume: string;
                lesson: string;
                interface: {
                    id: number;
                    fileName: string;
                    time: string;
                    url: string;
                    uid: string;
                    contentType: string;
                    shareCode: null;
                    shareExpireDate: null;
                    size: string;
                };
            };
        };
        tapeAmericanMusic: {
            mp3: {
                path: string;
                abbreviatedPath: string;
                md5: string;
                fileName: string;
                volume: string;
                lesson: string;
                interface: {
                    id: number;
                    fileName: string;
                    time: string;
                    url: string;
                    uid: string;
                    contentType: string;
                    shareCode: null;
                    shareExpireDate: null;
                    size: string;
                };
            };
            lrc: {
                path: string;
                abbreviatedPath: string;
                md5: string;
                fileName: string;
                volume: string;
                lesson: string;
                interface: {
                    id: number;
                    fileName: string;
                    time: string;
                    url: string;
                    uid: string;
                    contentType: string;
                    shareCode: null;
                    shareExpireDate: null;
                    size: string;
                };
            };
        };
    };
}
``