class RDoc::Parser::PrismRuby::RDocVisitor

def visit_singleton_class_node(node)
  @scanner.process_comments_until(node.location.start_line - 1)
  if @scanner.has_modifier_nodoc?(node.location.start_line)
    # Skip visiting inside the singleton class. Also skips creation of node.expression as a module
    @scanner.skip_comments_until(node.location.end_line)
    return
  end
  expression = node.expression
  expression = expression.body.body.first if expression.is_a?(Prism::ParenthesesNode) && expression.body&.body&.size == 1
  case expression
  when Prism::ConstantWriteNode
    # Accept `class << (NameErrorCheckers = Object.new)` as a module which is not actually a module
    mod = @scanner.container.add_module(RDoc::NormalModule, expression.name.to_s)
  when Prism::ConstantPathNode, Prism::ConstantReadNode
    expression_name = constant_path_string(expression)
    # If a constant_path does not exist, RDoc creates a module
    mod = @scanner.find_or_create_module_path(expression_name, :module) if expression_name
  when Prism::SelfNode
    mod = @scanner.container if @scanner.container != @top_level
  end
  expression.accept(self)
  if mod
    @scanner.with_container(mod, singleton: true) do
      node.body&.accept(self)
      @scanner.process_comments_until(node.location.end_line)
    end
  else
    @scanner.skip_comments_until(node.location.end_line)
  end
end