Proposal: Create a function on the Xref task to get a list of callers

[Matt Baker]

Hello Elixir friends. We're building "Find References" support in ElixirLS (moving it soon to ElixirSense) so that we can find references in our editor. Right now we run the xref mix task and capture stdout to get the list of references.

We'd prefer to be able to get the list directly. I'm curious what folks think about exposing something like callers/2 as a public function on the xref task (or elsewhere) that would hand back the list.
https://github.com/elixir-lang/elixir/blob/master/lib/mix/lib/mix/tasks/xref.ex#L268

Naively, it could be as simple as a function that includes everything except print_calls() and the :ok return value we see in callers/2.

What we have seems to work, so it's not a blocker, but this would definitely be helpful to anyone building IDE features.

If this seems like a reasonable add I would be happy to submit a PR, I imagine it will be a small change if folks approve of the idea.

[José Valim]

Can you build this from the information returned by calls/2?

--

José Valim

www.plataformatec.com.br

Founder and 

Director of R&D

[Matt Baker]

Ah, perhaps! I will take a look and report back.

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[Matt Baker]

That did the trick, thanks for the guidance José :)

On Sun, Feb 25, 2018 at 12:26 PM, Matt Baker <mbake...@gmail.com> wrote:

Ah, perhaps! I will take a look and report back.

On Sun, Feb 25, 2018 at 12:23 PM José Valim <jose....@gmail.com> wrote:

Can you build this from the information returned by calls/2?

--

José Valim

www.plataformatec.com.br

Founder and 

Director of R&D

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