class RuboCop::Cop::Layout::CommentIndentation


end
true
if true
# yet another comment
a = ‘hello’
# comment here
end
def method_name
# comment here
# good
end
true
if true
# yet another comment
a = ‘hello’
# comment here
end
def method_name
# comment here
# bad
@example
This cop checks the indentation of comments.

def autocorrect(comment) 

def autocorrect(comment)
  corrections = autocorrect_preceding_comments(comment) <<
                autocorrect_one(comment)
  ->(corrector) { corrections.each { |corr| corr.call(corrector) } }
end

def autocorrect_one(comment) 

def autocorrect_one(comment)
  AlignmentCorrector.correct(processed_source, comment, @column_delta)
end

def autocorrect_preceding_comments(comment)

then correcting one more line, and so on.
of correcting, saving the file, parsing and inspecting again, and
comment and have the same indentation. This is to avoid a long chain
Corrects all comment lines that occur immediately before the given 
def autocorrect_preceding_comments(comment)
  corrections = []
  line_no = comment.loc.line
  column = comment.loc.column
  comments = processed_source.comments
  (comments.index(comment) - 1).downto(0) do |ix|
    previous_comment = comments[ix]
    break unless should_correct?(previous_comment, column, line_no - 1)
    corrections << autocorrect_one(previous_comment)
    line_no -= 1
  end
  corrections
end

def check(comment) 

def check(comment)
  return unless own_line_comment?(comment)
  next_line = line_after_comment(comment)
  correct_comment_indentation = correct_indentation(next_line)
  column = comment.loc.column
  @column_delta = correct_comment_indentation - column
  return if @column_delta.zero?
  if two_alternatives?(next_line)
    # Try the other
    correct_comment_indentation += configured_indentation_width
    # We keep @column_delta unchanged so that autocorrect changes to
    # the preferred style of aligning the comment with the keyword.
    return if column == correct_comment_indentation
  end
  add_offense(
    comment,
    message: message(column, correct_comment_indentation)
  )
end

def correct_indentation(next_line) 

def correct_indentation(next_line)
  return 0 unless next_line
  indentation_of_next_line = next_line =~ /\S/
  indentation_of_next_line + if less_indented?(next_line)
                               configured_indentation_width
                             else
                               0
                             end
end

def investigate(processed_source) 

def investigate(processed_source)
  processed_source.each_comment { |comment| check(comment) }
end

def less_indented?(line) 

def less_indented?(line)
  line =~ /^\s*(end\b|[)}\]])/
end

def line_after_comment(comment) 

def line_after_comment(comment)
  lines = processed_source.lines
  lines[comment.loc.line..-1].find { |line| !line.blank? }
end

def message(column, correct_comment_indentation) 

def message(column, correct_comment_indentation)
  format(
    MSG,
    column: column,
    correct_comment_indentation: correct_comment_indentation
  )
end

def own_line_comment?(comment) 

def own_line_comment?(comment)
  own_line = processed_source.lines[comment.loc.line - 1]
  own_line =~ /\A\s*#/
end

def should_correct?(comment, column, line_no) 

def should_correct?(comment, column, line_no)
  loc = comment.loc
  loc.line == line_no && loc.column == column
end

def two_alternatives?(line) 

def two_alternatives?(line)
  line =~ /^\s*(else|elsif|when|rescue|ensure)\b/
end