EmptyLinesAroundAttributeAccessor and SpaceAroundMethodCallOperator are incredibly slow

[JelteF]

Expected behavior

Running rubocop should only become slightly slower when enabling Layout/EmptyLinesAroundAttributeAccessor and Layout/SpaceAroundMethodCallOperator.

Actual behavior

When running rubocop on a 2500 line xxx_spec.rb file runtime of rubocop goes from ~3.5 seconds to ~22.5 seconds.

Steps to reproduce the problem

Add this to your .rubocop.yml:

Layout/EmptyLinesAroundAttributeAccessor:
  Enabled: true
Layout/SpaceAroundMethodCallOperator:
  Enabled: true

Run it on some big xxx_spec.rb file and see that the runtime is now much higher.

RuboCop version

Include the output of rubocop -V or bundle exec rubocop -V if using Bundler. Here's an example:

$ [bundle exec] rubocop -V
0.87.1 (using Parser 2.7.1.4, rubocop-ast 0.1.0, running on ruby 2.6.6 x86_64-linux)

[marcandre]

Indeed. You'll be glad to hear that it is fixed, see #8021 and released in 0.88.0

We're also working on making other cops faster (and by we I mean mostly @fatkodima 😅 💪 )