This question is a bit convoluted, so please bear with me… I have some common functions that I use occasionally for tracing and such. For example, Common.ii/2 provides a shorthand version of IO.inspect/2: foo = bar |> ii(:bar) ... If I want to keep a trace around for later, I comment it out. To k…

use the module and return a quoted expression that is generated: true.

Thanks for the prompt response. However, after Googling a bit and trying things out, I don’t think this will work for my use case. Problem is, my Common module (following @PragDave ’s suggested approach) only contains defdelegate statements. So, when I wrap my tracing functions (in Common.Tracing) i…

I do not understand what you consider arcane there? defmodule M do defmacro __using__(args) do quote generated: true do import __MODULE__, unquote(args) end end defdelegate … end PS: I do not know much about @pragdaves approach, except that I don’t use it, and also I’m not sur…

I tried playing with this a bit and it caused my compile to blow up. This seems like a rathole, so I think I’ll punt for the moment…

Yes, sorry, typed that on my mobile. This works for me: iex(1)> defmodule M do ...(1)> defmacro __using__(args) do ...(1)> quote generated: true do ...(1)> import unquote(__MODULE__), unquote(args) ...(1)> end ...(1)> end ...(1)> ...(1)> defdelegate ii(a), to: IO, as: :inspect .…

Thanks; that works nicely. I (carefully!) modified my code base to use it and it passes both dialyzer and my tests. I’m not sure if I like the additional reductions it does cost. I doubt whether the added reductions have any significant impact, unless a function is being called in the middle of…

You can also disable warnings on the callers side: Kernel.SpecialForms — Elixir v1.20.2

Cool! I like this better than the use approach, for multiple reasons: It gets rid of a macro in my code base. I can use import for all of my libraries. The caller controls the module usage. The whole thing seems more explicit. Thanks.

Enabling access to occasionally used (eg, tracing) functions?

Questions & Help Questions

LostKobrakai May 19, 2019, 7:13am 8

You can also disable warnings on the callers side: