class Prism::UndefNode

^^^^^^^^^^^^^^^^^^^^^^
undef :foo, :bar, :baz
Represents the use of the ‘undef` keyword.

def self.type

Return a symbol representation of this node type. See `Node::type`. 
def self.type
  :undef_node
end

def ===(other)

comparing the value of locations. Locations are checked only for presence.
Implements case-equality for the node. This is effectively == but without 
def ===(other)
  other.is_a?(UndefNode) &&
    (names.length == other.names.length) &&
    names.zip(other.names).all? { |left, right| left === right } &&
    (keyword_loc.nil? == other.keyword_loc.nil?)
end

def accept(visitor)

def accept: (Visitor visitor) -> void 
def accept(visitor)
  visitor.visit_undef_node(self)
end

def child_nodes

def child_nodes: () -> Array[nil | Node] 
def child_nodes
  [*names]
end

def comment_targets

def comment_targets: () -> Array[Node | Location] 
def comment_targets
  [*names, keyword_loc] #: Array[Prism::node | Location]
end

def compact_child_nodes

def compact_child_nodes: () -> Array[Node] 
def compact_child_nodes
  [*names]
end

def copy(node_id: self.node_id, location: self.location, flags: self.flags, names: self.names, keyword_loc: self.keyword_loc)

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?names: Array[SymbolNode | InterpolatedSymbolNode], ?keyword_loc: Location) -> UndefNode 
def copy(node_id: self.node_id, location: self.location, flags: self.flags, names: self.names, keyword_loc: self.keyword_loc)
  UndefNode.new(source, node_id, location, flags, names, keyword_loc)
end

def deconstruct_keys(keys)

def deconstruct_keys: (Array[Symbol] keys) -> { node_id: Integer, location: Location, names: Array[SymbolNode | InterpolatedSymbolNode], keyword_loc: Location } 
def deconstruct_keys(keys)
  { node_id: node_id, location: location, names: names, keyword_loc: keyword_loc }
end

def initialize(source, node_id, location, flags, names, keyword_loc)

Initialize a new UndefNode node. 
def initialize(source, node_id, location, flags, names, keyword_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @names = names
  @keyword_loc = keyword_loc
end

def inspect

def inspect -> String 
def inspect
  InspectVisitor.compose(self)
end

def keyword

def keyword: () -> String 
def keyword
  keyword_loc.slice
end

def keyword_loc

attr_reader keyword_loc: Location 
def keyword_loc
  location = @keyword_loc
  return location if location.is_a?(Location)
  @keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

def save_keyword_loc(repository)

it can be retrieved later.
Save the keyword_loc location using the given saved source so that 
def save_keyword_loc(repository)
  repository.enter(node_id, :keyword_loc)
end

def type

Return a symbol representation of this node type. See `Node#type`. 
def type
  :undef_node
end