Class: Rubocop::Cop::Style::AlignArray

Inherits:
Cop
  • Object
show all
Defined in:
lib/rubocop/cop/style/align_array.rb

Overview

Here we check if the elements of a multi-line array literal are aligned.

Constant Summary collapse

MSG = 
'Align the elements of an array literal if they span more ' +
'than one line.'

Constants inherited from Cop

Cop::OPERATOR_METHODS

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offences, #processed_source

Instance Method Summary collapse

Methods inherited from Cop

#add_offence, all, #autocorrect?, #convention, #cop_config, cop_name, #cop_name, cop_type, #debug?, #ignore_node, inherited, #initialize, lint?, #message, rails?, style?, #warning

Constructor Details

This class inherits a constructor from Rubocop::Cop::Cop

Instance Method Details

#autocorrect_action(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/align_array.rb', line 25

def autocorrect_action(node)
  # We can't use the instance variable inside the lambda. That would
  # just give each lambda the same reference and they would all get
  # the last value of @column_delta. A local variable fixes the
  # problem.
  column_delta = @column_delta

  @corrections << lambda do |corrector|
    expr = node.loc.expression
    if column_delta > 0
      corrector.replace(expr, ' ' * column_delta + expr.source)
    else
      range = Parser::Source::Range.new(expr.source_buffer,
                                        expr.begin_pos + column_delta,
                                        expr.end_pos)
      corrector.replace(range, expr.source)
    end
  end
end

#on_array(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/align_array.rb', line 12

def on_array(node)
  first_element = node.children.first

  node.children.each_cons(2) do |prev, current|
    if current.loc.line != prev.loc.line
      @column_delta = first_element.loc.column - current.loc.column
      if current.loc.column != first_element.loc.column
        convention(current, :expression)
      end
    end
  end
end