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Module: RuboCop::Cop::Alignment

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Extended In:
AlignmentCorrector, LineBreakCorrector
Included In:
Layout::AccessModifierIndentation, Layout::ArgumentAlignment, Layout::ArrayAlignment, Layout::AssignmentIndentation, Layout::BlockEndNewline, Layout::CaseIndentation, Layout::ClosingParenthesisIndentation, Layout::CommentIndentation, Layout::ElseAlignment, Layout::FirstArgumentIndentation, Layout::FirstArrayElementIndentation, Layout::FirstHashElementIndentation, Layout::FirstParameterIndentation, Layout::HeredocIndentation, Layout::IndentationConsistency, Layout::IndentationStyle, Layout::IndentationWidth, Layout::LineEndStringConcatenationIndentation, Layout::LineLength, Layout::MultilineMethodCallIndentation, Layout::MultilineOperationIndentation, Layout::ParameterAlignment, LineLengthHelp, Lint::ElseLayout, StatementModifier, Style::ClassAndModuleChildren, Style::ComparableClamp, Style::GuardClause, Style::IfUnlessModifier, Style::IfUnlessModifierOfIfUnless, Style::InfiniteLoop, Style::MultilineIfModifier, Style::MultilineMemoization, Style::OneLineConditional, Style::ParallelAssignment::GenericCorrector, Style::ParallelAssignment::ModifierCorrector, Style::ParallelAssignment::RescueCorrector, Style::RedundantConditional, Style::RescueModifier, Style::SingleLineMethods, Style::TrailingBodyOnClass, Style::TrailingBodyOnMethodDefinition, Style::TrailingBodyOnModule, Style::WhileUntilModifier
Defined in: lib/rubocop/cop/mixin/alignment.rb

Overview

This module checks for nodes that should be aligned to the left or right. This amount is determined by the instance variable @column_delta.

Constant Summary

Instance Attribute Summary

Instance Method Summary

Instance Attribute Details

#column_delta (readonly, private)

[ GitHub ] 

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 12



attr_reader :column_delta


  







Instance Method Details



  

    #check_alignment(items, base_column = nil)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 26



def check_alignment(items, base_column = nil)
  base_column ||= display_column(items.first.source_range) unless items.empty?

  each_bad_alignment(items, base_column) do |current|
    expr = current.source_range
    if @current_offenses&.any? { |o| within?(expr, o.location) }
      # If this offense is within a line range that is already being
      # realigned by autocorrect, we report the offense without
      # autocorrecting it. Two rewrites in the same area by the same
      # cop cannot be handled. The next iteration will find the
      # offense again and correct it.
      register_offense(expr, nil)
    else
      register_offense(current, current)
    end
  end
end


  








  

    #configured_indentation_width   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 14



def configured_indentation_width
  cop_config['IndentationWidth'] || config.for_cop('Layout/IndentationWidth')['Width'] || 2
end


  








  

    #display_column(range)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 58



def display_column(range)
  line = processed_source.lines[range.line - 1]
  Unicode::DisplayWidth.of(line[0, range.column])
end


  








  

    #each_bad_alignment(items, base_column)   (private)
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 45



def each_bad_alignment(items, base_column)
  prev_line = -1
  items.each do |current|
    if current.loc.line > prev_line && begins_its_line?(current.source_range)
      @column_delta = base_column - display_column(current.source_range)

      yield current if @column_delta.nonzero?
    end
    prev_line = current.loc.line
  end
end


  








  

    #end_of_line_comment(line)   (private)
  



  

    
Deprecated. 


Use processed_source.comment_at_line(line)




  



  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 69



def end_of_line_comment(line)
  processed_source.line_with_comment?(line)
end


  








  

    #indentation(node)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 18



def indentation(node)
  offset(node) + (SPACE * configured_indentation_width)
end


  








  

    #offset(node)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 22



def offset(node)
  SPACE * node.loc.column
end


  








  

    #register_offense(offense_node, message_node)   (private)
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 74



def register_offense(offense_node, message_node)
  add_offense(offense_node, message: message(message_node)) do |corrector|
    autocorrect(corrector, message_node)
  end
end


  








  

    #within?(inner, outer)  ⇒ Boolean  (private)
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/alignment.rb', line 64



def within?(inner, outer)
  inner.begin_pos >= outer.begin_pos && inner.end_pos <= outer.end_pos
end