Class: RungerStyle::MultilineMethodArgumentsLineBreaks

Inherits:
RuboCop::Cop::Base
  • Object
show all
Extended by:
RuboCop::Cop::AutoCorrector
Includes:
RuboCop::Cop::RangeHelp
Defined in:
lib/runger_style/cops/default/multiline_method_arguments_line_breaks.rb

Constant Summary collapse

MSG = 
'Each argument in a multi-line method call must start on a separate line.'

Instance Method Summary collapse

Instance Method Details

#on_send(node) ⇒ Object 



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# File 'lib/runger_style/cops/default/multiline_method_arguments_line_breaks.rb', line 10

def on_send(node)
  if node.arguments? && multiline_method_call?(node)
    # When a method call uses keyword arguments without braces,
    # the parser produces a single hash node. In that case, inspect its pairs.
    arguments =
      if (
        node.arguments.one? &&
          node.arguments.first.hash_type? &&
          !node.arguments.first.braces?
      )
        node.arguments.first.pairs
      else
        node.arguments
      end

    arguments.each_cons(2) do |arg1, arg2|
      if same_line?(arg1, arg2)
        separator = separator_range(arg1, arg2)

        add_offense(separator, message: MSG) do |corrector|
          base_indent = base_indentation(arg1)
          replacement = ",\n#{base_indent}"
          corrector.replace(separator, replacement)
        end
      end
    end
  end
end