TypeScript class method decorator not rendering properly in version >= 1.63.2

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.63.2
• OS Version: Darwin x64 20.6.0

Steps to Reproduce:

1. Write a JSDoc string with an example that involves a decorator:

class MyClass {
   /**
   * This is an example of a decorator.
   * 
   * @example
   * ```typescript
   * import { MyClass } from '@org/myClass';
   * 
   * const myClass = new MyClass();
   * 
   * class MyAwesomeClass {
   *   @myClass.decorateMethod()
   *   public doStuff() {
   *     ...
   *   }
   * }
   * 
   * ```
   * 
   * @decorator Class
   */
   public decorateMethod(): MyType {
     return (target, _propertyKey, descriptor) => {
       const originalMethod = descriptor.value;

       descriptor.value = ((event, context, callback) => {
         return originalMethod?.apply(target, [ event, context, callback ]);
       });

       return descriptor;
     };
   }
}

1. Use decorator / hover on method declaration:

As you can see from the screenshot above the example appears not to be rendered correctly with two main issues:

• Decorator is rendered on a new line & wrapped with *
• All code indentation after the decorator is lost

Before opening this issue I’ve searched the repo (& the TypeScript one) and found a series of other issues. Most of them have been closed as duplicates or as fixed but as the above shows the issue is still there. Examples:

• https://github.com/microsoft/TypeScript/issues/39371
• https://github.com/microsoft/TypeScript/issues/38922
• https://github.com/microsoft/vscode/issues/119218
• https://github.com/microsoft/TypeScript/pull/42364

If the issue has been indeed fixed, could you please take a second to clarify what’s the intended usage to allow VS Code to render decorators correctly? I’m aware that decorators are an experimental feature, if that’s the reason why this is not supported could you please state it?

Thanks in advance.

[trusktr]

JSDoc itself is still active, and the community has open issues for this:

https://github.com/jsdoc/jsdoc/issues/1521 https://github.com/jsdoc2md/jsdoc-to-markdown/issues/209

@hegemonic do you have any opinions on decorator support?

I believe we should all aim to be on the same page to avoid community fracture. It would be so much better to coalesce into a common future.

In the worst case, a tool like better-docs would have to take incompatible syntax and convert it to compatible syntax, which wouldn’t be ideal.

[sandersn]

Update: the fix at #50677 correctly makes single and triple backticks multiline, but this breaks unclosed backticks in the tests and would break them in the compiler source code itself. We’re discussing whether to take the change or not.