class Prism::UndefNode

Represents the use of the ‘undef` keyword.

undef :foo, :bar, :baz
^^^^^^^^^^^^^^^^^^^^^^

Attributes

names [R]

attr_reader names: Array[SymbolNode | InterpolatedSymbolNode]

Public Class Methods

new (source, node_id, location, flags, names, keyword_loc)

Source

# File lib/prism/node.rb, line 17148
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

Initialize a new UndefNode node.

type ()

Source

# File lib/prism/node.rb, line 17222
def self.type
  :undef_node
end

Return a symbol representation of this node type. See ‘Node::type`.

Public Instance Methods

=== (other)

Source

# File lib/prism/node.rb, line 17228
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

Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.

accept (visitor)

Source

# File lib/prism/node.rb, line 17158
def accept(visitor)
  visitor.visit_undef_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

Source

# File lib/prism/node.rb, line 17163
def child_nodes
  [*names]
end

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

Also aliased as: deconstruct

comment_targets ()

Source

# File lib/prism/node.rb, line 17173
def comment_targets
  [*names, keyword_loc] #: Array[Prism::node | Location]
end

def comment_targets: () -> Array[Node | Location]

compact_child_nodes ()

Source

# File lib/prism/node.rb, line 17168
def compact_child_nodes
  [*names]
end

def compact_child_nodes: () -> Array

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

Source

# File lib/prism/node.rb, line 17178
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 copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?names: Array[SymbolNode | InterpolatedSymbolNode], ?keyword_loc: Location) -> UndefNode

deconstruct ()

def deconstruct: () -> Array[nil | Node]

Alias for: child_nodes

deconstruct_keys (keys)

Source

# File lib/prism/node.rb, line 17186
def deconstruct_keys(keys)
  { node_id: node_id, location: location, names: names, keyword_loc: keyword_loc }
end

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

inspect ()

Source

# File lib/prism/node.rb, line 17212
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

keyword ()

Source

# File lib/prism/node.rb, line 17207
def keyword
  keyword_loc.slice
end

def keyword: () -> String

keyword_loc ()

Source

# File lib/prism/node.rb, line 17194
def keyword_loc
  location = @keyword_loc
  return location if location.is_a?(Location)
  @keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

attr_reader keyword_loc: Location

save_keyword_loc (repository)

Source

# File lib/prism/node.rb, line 17202
def save_keyword_loc(repository)
  repository.enter(node_id, :keyword_loc)
end

Save the keyword_loc location using the given saved source so that it can be retrieved later.

type ()

Source

# File lib/prism/node.rb, line 17217
def type
  :undef_node
end

Return a symbol representation of this node type. See ‘Node#type`.