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RuboCop | Style/AlignParameters | EnforcedStyle

Posted at

RuboCop | Style/AlignParameters | EnforcedStyle

概要

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

設定値一覧

設定対象 設定値 内容 デフォルト
EnforcedStyle with_first_parameter 最初のパラメータに位置を合わせる
EnforcedStyle with_fixed_indentation メソッド呼び出しの行から1段階インデントする --

EnforcedStyle

with_first_parameter, with_fixed_indentation
の各値での rubocop 実行結果をまとめます。

検証プログラム

enforced_style.rb

def some_method(a, b)
  "#{a}-#{b}"
end

some_method('hoge',
            'hige')

some_method('hoge',
  'hige')

EnforcedStyle with_first_parameter(デフォルト) でチェックした場合

.rubocop.yml

AlignParameters:
  EnforcedStyle: with_first_parameter

enforced_style.rb の2つ目の例が警告対象になります

$ rubocop
Inspecting 1 file
C

Offenses:

enforced_style.rb:9:3: C: Align the parameters of a method call if they span more than one line.
  'hige')
  ^^^^^^

1 file inspected, 1 offense detected

EnforcedStyle with_fixed_indentation でチェックした場合

.rubocop.yml

AlignParameters:
  EnforcedStyle: with_fixed_indentation

enforced_style.rb の1つ目の例が警告対象になります

$ rubocop
Inspecting 1 file
C

Offenses:

enforced_style.rb:6:13: C: Align the parameters of a method call if they span more than one line.
            'hige')
            ^^^^^^

1 file inspected, 1 offense detected

補足

この警告は rubocop -a で修正可能です。

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