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RuboCop | Style/ClassAndModuleChildren EnforcedStyle

Last updated at Posted at 2014-06-23

RuboCop | Style/ClassAndModuleChildren EnforcedStyle

概要

RuboCopの「Style/ClassAndModuleChildren EnforcedStyle」警告について。

クラス内のクラスなどを定義する際の形式を強制します。

設定値一覧

設定対象 設定値 内容 デフォルト
EnforcedStyle nested ネスト形式
EnforcedStyle compact ParentClass::ChildClass形式でコンパクトに記述する --

ClassAndModuleChildren EnforcedStyle

各設定値(nested, compact)での検証結果をまとめます。

検証プログラム

enforced_style.rb

# Hoge
class Hoge
  # Hoge::ChildHoge
  class ChildHoge
  end
end

# Hoge::ChildHoge
class Hoge::ChildHoge
end

実行結果 nested の場合

.rubocop.yml

※明示的に設定しているが、デフォルト値なので何も設定しなくてもよい

ClassAndModuleChildren:
  EnforcedStyle: nested

compact形式の場合に警告が発生します。

$ rubocop enforced_style.rb
Inspecting 1 file
C

Offenses:

enforced_style.rb:9:7: C: Use nested module/class definitions instead of compact style.
class Hoge::ChildHoge
      ^^^^^^^^^^^^^^^

1 file inspected, 1 offense detected

実行結果 compact の場合

.rubocop.yml

ClassAndModuleChildren:
  EnforcedStyle: compact

nested形式の場合に警告が発生します。

$ rubocop enforced_style.rb
Inspecting 1 file
C

Offenses:

enforced_style.rb:2:7: C: Use compact module/class definition instead of nested style.
class Hoge
      ^^^^

1 file inspected, 1 offense detected
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