Vscode-cpptools: Implement "Go to Implementation" to find all the derived classes

[sean-mcmanus]

Any sort of class inheritance info/viewing is unlikely to be available any time soon -- I don't think even Visual Studio has this available. Maybe you could parse the find all references result to check for references of classes that involve inheritance, but that would only work if the base class reference were on the same line as the sub class reference.

VSCode has implemented 'go to implementation' from version 1.35. If I can get the implementation locations of symbol, I think it's ok.

_Originally posted by @Lennon925 in https://github.com/microsoft/vscode-cpptools/issues/3886#issuecomment-512705520_

[sean-mcmanus]

VS has the info available via the "Class View".

[ddhanaraj]

Identifying all derived classes is a basic need during code navigation. Are there any plan to have this feature in VS Code?

[sean-mcmanus]

Find All References can be used as a workaround -- i.e. if you use it on a base class virtual method, it should find all the derived classes that override that method.

We don't currently have any plans to add this in the near-term (we have too many higher priority issues), but it's on our backlog.