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Module: RuboCop::Cop::FirstElementLineBreak

Overview

Common functionality for checking for a line break before the first element in a multi-line collection.

Instance Method Summary

Instance Method Details

#check_children_line_break(node, children, start = node, ignore_last: false) (private)

[ GitHub ] 

  


# File 'lib/rubocop/cop/mixin/first_element_line_break.rb', line 23



def check_children_line_break(node, children, start = node, ignore_last: false)
  return if children.empty?

  line = start.first_line

  min = first_by_line(children)
  return if line != min.first_line

  max_line = last_line(children, ignore_last: ignore_last)
  return if line == max_line

  add_offense(min) { |corrector| EmptyLineCorrector.insert_before(corrector, min) }
end


  








  

    #check_method_line_break(node, children, ignore_last: false)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/first_element_line_break.rb', line 10



def check_method_line_break(node, children, ignore_last: false)
  return if children.empty?

  return unless method_uses_parens?(node, children.first)

  check_children_line_break(node, children, ignore_last: ignore_last)
end


  








  

    #first_by_line(nodes)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/first_element_line_break.rb', line 37



def first_by_line(nodes)
  nodes.min_by(&:first_line)
end


  








  

    #last_line(nodes, ignore_last:)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/mixin/first_element_line_break.rb', line 41



def last_line(nodes, ignore_last:)
  if ignore_last
    nodes.map(&:first_line)
  else
    nodes.map(&:last_line)
  end.max
end


  








  

    #method_uses_parens?(node, limit)  ⇒ Boolean  (private)
  



  

    
  





  


  [ GitHub ]


  

  


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



def method_uses_parens?(node, limit)
  source = node.source_range.source_line[0...limit.loc.column]
  /\s*\(\s*$/.match?(source)
end