class Rcov::RubyAnnotation

def create_cross_refs(filename, lineno, linetext, marked)
  return linetext unless @callsite_analyzer && @do_callsites
  ref_blocks = []
  _get_defsites(ref_blocks, filename, lineno, linetext, ">>") do |ref|
    if ref.file
      ref.file.sub!(%r!^./!, '')
      where = "at #{mangle_filename(ref.file)}:#{ref.line}"
    else
      where = "(C extension/core)"
    end
    "#{ref.klass}##{ref.mid} " + where + ""
  end
  _get_callsites(ref_blocks, filename, lineno, linetext, "<<") do |ref| # "
    ref.file.sub!(%r!^./!, '')
    "#{mangle_filename(ref.file||'C code')}:#{ref.line} " + "in #{ref.klass}##{ref.mid}"
  end
  create_cross_reference_block(linetext, ref_blocks, marked)
end