Documentation XML comment generation in LSP mode

[elevin72]

In vscode, entering /// above a class/method/property/whatever will generate a nice xml comment docs. It seems like this is not supported for other editors using LSP. That functionality could be exposed as a code action to vim/emacs (or a snippet but I'm not sure how that would work).

This would be a very helpful feature to make useable for other editors as well.

[filipw]

Documentation generation is not a code action, but is instead tied to executing code formatting. VS Code simply invokes formatting endpoint which then expands /// into a doc comment.

In LSP this can be achieved via /onTypingFormat endpoint. It has some limitations such as no support for setting the cursor location after format which ends up awkward in some situations, but this is the best that can be done without introducing custom LSP endpoints.