Find usage of private modules and functions

Questions / Help
1

Is it possible to find a list of external private modules/functions used in a project, potentially with mix xref?

My use-case is I’m trying to update a project that makes heavy use of Elixir internals (elixir-ls) and finding and isolating (and eventually eliminating) the private api usage would be very helpful!

2

Depends on how you will define private. If by private you mean modules and functions with hidden docs then you can see mix_unused to see how to list all called functions and then just iterate through them and use Code.fetch_docs/1 to check if the given module/function is hidden or not.

3

Yeah, I mean calling functions from modules with @moduledoc false. So things like easily finding if the code in my project is calling into Mix.ProjectStack. I’ll take a look at how you find all called functions in mix_unused.