[erlang-questions] xref

Guilherme Andrade g@REDACTED
Thu Jan 4 14:39:24 CET 2018

On 4 January 2018 at 04:46, Technion <technion@REDACTED> wrote:

> I'm wondering if I could get some advise regarding xref.
> I've found across a number of projects, anything using Cowboy triggers
> similar alerts for me to below:

I believe the example module you mentioned ('toppage_handler') implements
the 'cowboy_handler' behaviour[1].

If '-behaviour(cowboy_handler).' were to be explicitly declared on
'toppage_handler', xref would realize that those unused functions are
actually callbacks.

[1]: https://ninenines.eu/docs/en/cowboy/2.0/manual/cowboy_handler/

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