Lint/MixedRegexpCaptureTypes fails for multiline regex with comments

[bkuhlmann]

Expected behavior

I would expect Rubocop to not flag multi-line regular expressions with comments as invalid.

Actual behavior

End up with the following error:

Lint/MixedRegexpCaptureTypes: Do not mix named captures and numbered captures in a Regexp literal.

Steps to reproduce the problem

You can recreate the issue as follows:

# frozen_string_literal: true

SUCCESS = /
  (?<key>\A.+)
/x.freeze

FAILURE = /
  (?<key>\A.+)  # Key (anchored to start of line).
/x.freeze

If you save the above to example.rb and run rubocop example.rb, you'll get the following error:

Inspecting 1 file
W

Offenses:

example.rb:3:19: W: Lint/MixedRegexpCaptureTypes: Do not mix named captures and numbered captures in a Regexp literal.
PATTERN_FAILURE = / ...
                  ^

1 file inspected, 1 offense detected, 1 offense auto-correctable

RuboCop version

0.92.0 (using Parser 2.7.1.5, rubocop-ast 0.7.1, running on ruby 2.7.2 x86_64-darwin19)

[dvandersluis]

I think this was fixed by #8803 already!

[bkuhlmann]

🙇 @dvandersluis Perfect. I was searching for open/closed issues related to Lint/MixedRegexpCaptureType but didn't see that at all. I look forward to the next release.