Possible New Rules: Code Complexity

[elbrujohalcon]

Inspired by https://hexdocs.pm/credo/Credo.Check.Refactor.ABCSize.html

Read the comments below to find more possible rules :)

[paulo-ferraz-oliveira]

There's also https://hexdocs.pm/credo/Credo.Check.Refactor.CyclomaticComplexity.html in a similar spirit.

[paulo-ferraz-oliveira]

And https://hexdocs.pm/credo/Credo.Check.Refactor.PerceivedComplexity.html.

[maco]

The assignments (A) part probably needs to be weighted differently for Erlang versus other languages. For example, I do WAY fewer assignments in Elixir than in Erlang, because in Elixir, there are pipes, and in Erlang there's a bunch of intermediate variables.

[paulo-ferraz-oliveira]

Agreed. This could probably be released initially as experimental (something I'm not sure we've ever done in elvis_core) and then tweaked with community feedback.