class RuboCop::Cop::Layout::EmptyLines
This cop checks for two or more consecutive blank lines.
@example
# bad - It has two empty lines. some_method # one empty line # two empty lines some_method # good some_method # one empty line some_method
Constants
- LINE_OFFSET
- MSG
Public Instance Methods
autocorrect(range)
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# File lib/rubocop/cop/layout/empty_lines.rb, line 42 def autocorrect(range) ->(corrector) { corrector.remove(range) } end
investigate(processed_source)
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# File lib/rubocop/cop/layout/empty_lines.rb, line 29 def investigate(processed_source) return if processed_source.tokens.empty? lines = Set.new processed_source.each_token do |token| lines << token.line end each_extra_empty_line(lines.sort) do |range| add_offense(range, location: range) end end
Private Instance Methods
each_extra_empty_line(lines) { |source_range(buffer, line, 0)| ... }
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# File lib/rubocop/cop/layout/empty_lines.rb, line 48 def each_extra_empty_line(lines) prev_line = 1 lines.each do |cur_line| if exceeds_line_offset?(cur_line - prev_line) # we need to be wary of comments since they # don't show up in the tokens ((prev_line + 1)...cur_line).each do |line| next unless previous_and_current_lines_empty?(line) yield source_range(processed_source.buffer, line, 0) end end prev_line = cur_line end end
exceeds_line_offset?(line_diff)
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# File lib/rubocop/cop/layout/empty_lines.rb, line 66 def exceeds_line_offset?(line_diff) line_diff > LINE_OFFSET end
previous_and_current_lines_empty?(line)
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# File lib/rubocop/cop/layout/empty_lines.rb, line 70 def previous_and_current_lines_empty?(line) processed_source[line - 2].empty? && processed_source[line - 1].empty? end