Hacktoberfest 2026：維護者為十月標記出來的 issue，仍然開放、適合新手。 瀏覽 Hacktoberfest issue

Question on declarations generation

未關閉
  • 哪裡不對？
#205 4 則留言 1 個 reaction 已指派 0 人 在 GitHub 檢視

維護者通常 2 天內回覆

還沒有人認領這個 Issue。

評估

難度
4/5
預估耗時
3-5 天
新手友好度
30/100
Issue 類型
缺陷
描述清晰度
需要釐清
活躍度
停滯
技術堆疊
cpp, objective-c, typescript
領域
tooling

研究方向

從 metadata-generator/src/TypeScript/DefinitionWriter.cpp 第862行附近開始，將其型別評估與這裡所示的 Objective-C 標頭宣告和產生的 ios.d.ts 進行比較。判定是否需要修改輸入標頭，或是產生器遺失了協定型別；完成的標誌應是明確的診斷，以及正確保留引數型別和回傳型別，而不是 NSObject。

由索引模型根據 Issue 內容生成。

描述

Hello and thanks for your work.

I have a question regarding the generation of ios typescript declarations hoping to be in the right place.

We're using a robovm based toolchain to build a native library for iOS from Java-code. This toolchain emits header files in the following (shortened) form:


@protocol Option                                                                                
-(NSString *) optionId;                                 
-(NSString *) type;                    
@end                                      
typedef NSObject<Option> Option; 

@protocol Info                                                                                 
-(NSArray<NSObject<Option> *> *) getOptions;
@end
typedef NSObject<Info> Info;

the (shortened) declarations in ios.d.ts are


interface Option {                                      
                                                        
        optionId(): string;                             
                                                        
        type(): string;                                 
}                                                       
declare var Option: {                                   
                                                        
        prototype: Option;                              
};

interface Info {
                                               
        getOptions(): NSArray<NSObject>;
                                           
}                  
declare var Info: {       
                                            
        prototype: Info;          
};

You may notice that the returned Array of getOptions is typed with NSObject instead of Option, which is the reason for this writing.

In fact are all argument- and return- types of functions which are defined by our headers typed with NSObject instead of the type which it should be.

After digging a while i understand that the types are evaluated in that function
https://github.com/NativeScript/ios/blob/main/metadata-generator/src/TypeScript/DefinitionWriter.cpp#L862
which might be wrong since it's been a while that i read some cpp code.

I assume that this codes falls back to NSObject if it cannot determine the correct type.
Note, that if i manually adjust the types in ios.d.ts everything works fine.

So basically my questions:

  • Are our input (the header files) missing something or do they have to be different soemhow to get beter outcomes?
  • If not would it be possible to patch the generator?
  • Am i totally wrong here?

Cheers and again thanks for your work.
legion

主要語言
JavaScript
星號
150
分支
44
平均合併
3 天 23 小時
30 天內合併 PR
19

環境準備

  • 沒有 Dockerfile 或 Docker Compose 檔案
  • 沒有 Pull Request 範本
  • 閱讀貢獻指南

從這裡開始

  1. 先讀完整個 Issue，再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  3. Fork 儲存庫，在一個分支上完成修改。
  4. 送出 Pull Request，並在描述裡引用這個 Issue 編號。

NativeScript/ios 的其他 Issue

查看 NativeScript/ios 的全部 Issue

相似的 Issue

更多 JavaScript Issue

把新 issue 寄到你的電子郵件信箱

精選適合新手參與的 GitHub issue 摘要。