`tsc` loses the class name in sourcemap

🔎 Search Terms

• stack trace
• lose class name

🕗 Version & Regression Information

Now I use TypeScript v5.2.2. This is not a critical bug, so I did not pay attention when it appeared.

💻 Code

// tmp.ts
class MyClass {
  static staticMethod() {
    throw new Error('Error in static method');
  }
}

MyClass.staticMethod();

Enable sourceMap in tsconfig, compile this code with tsc and then run compiled file with --enable-source-maps option:

tsc tmp.ts
node --enable-source-maps dist/tmp.js

🙁 Actual behavior

Error: Error in static method
    at Function.staticMethod

As you can see, the class name is missing from the stack trace. This bug appears only when the error occurs in static methods.

🙂 Expected behavior

Error: Error in static method
    at MyClass.staticMethod

Riproduci il problema con tmp.ts, sourceMap abilitato in tsconfig, tsc e l'opzione --enable-source-maps di Node. Confronta lo stack trace di dist/tmp.js con l'output previsto di MyClass.staticMethod, quindi traccia la gestione delle source map da parte del compilatore per i metodi statici. Il lavoro è completato quando il nome della classe viene preservato nello stack trace riportato.