Gathering runtime statistics about function calls across entire app

[gmile]

E.g. is there a way I could tell Elixir compiler: please, when compiling ALL modules that belong to my own app, do wrap them in such a way?

Btw I guess the following can be considered an answer to my question above:

How to change AST before Elixir compilation

Not possible. By design. We want to avoid anything that goes and globally changes code, without a trace. You can hand roll, as in your current solution, but it will have pitfalls such as losing incremental compilation. I would suggest taking a step back and discuss what you want to solve and try to find a way that would be considered idiomatic Elixir. Sorry if this is not the answer you were looking for.