Psych::Visitors::RestrictedYAMLTree#accept

# File tmp/rubies/ruby-4.1.0-preview1/ext/psych/lib/psych/visitors/yaml_tree.rb, line 602
def accept target
  if !@aliases && @st.key?(target)
    raise BadAlias, "Tried to dump an aliased object"
  end

  unless Symbol === target || @permitted_classes[target.class]
    raise DisallowedClass.new('dump', target.class.name || target.class.inspect)
  end

  super
end