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Add new Style/MultilineInPatternThen cop #9834

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koic
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@koic koic commented May 28, 2021

Follow rubocop/ruby-style-guide#873.

This PR adds new Style/MultilineInPatternThen cop.
It checks uses of the then keyword in multi-line in statement.

# bad
case expression
in pattern then
end

# good
case expression
in pattern
end

This cop is similar to Style/MultilineWhenThen (and Style/MultilineIfThen) but with different supported syntax and Ruby version (requires 2.7 or higher).


Before submitting the PR make sure the following are checked:

  • The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences.
  • Wrote good commit messages.
  • Commit message starts with [Fix #issue-number] (if the related issue exists).
  • Feature branch is up-to-date with master (if not - rebase it).
  • Squashed related commits together.
  • Added tests.
  • Ran bundle exec rake default. It executes all tests and runs RuboCop on its own code.
  • Added an entry (file) to the changelog folder named {change_type}_{change_description}.md if the new code introduces user-observable changes. See changelog entry format for details.

@koic koic force-pushed the add_new_style_multiline_in_pattern_then_cop branch from 5cd885b to c0a4fbc Compare May 28, 2021 18:55
Follow rubocop/ruby-style-guide#873.

This PR adds new `Style/MultilineInPatternThen` cop.
It checks uses of the `then` keyword in multi-line `in` statement.

```ruby
# bad
case expression
in pattern then
end

# good
case expression
in pattern
end
```

This cop is similar to `Style/MultilineWhenThen` (and `Style/MultilineIfThen`)
but with different supported syntax and Ruby version (requires 2.7 or higher).
@koic koic force-pushed the add_new_style_multiline_in_pattern_then_cop branch from c0a4fbc to 3bd037c Compare May 28, 2021 18:59
@bbatsov bbatsov merged commit b47de70 into rubocop:master May 30, 2021
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bbatsov commented May 30, 2021

Thanks!

@koic koic deleted the add_new_style_multiline_in_pattern_then_cop branch May 30, 2021 07:32
koic added a commit that referenced this pull request Jun 5, 2021
I noticed this in the implementation of #9834.
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2 participants