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) click to toggle source

Initialize a new UndefNode node.

# File lib/prism/node.rb, line 15506
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

type() click to toggle source

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

# File lib/prism/node.rb, line 15573
def self.type
  :undef_node
end

Public Instance Methods

===(other) click to toggle source

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

# File lib/prism/node.rb, line 15579
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

accept(visitor) click to toggle source

def accept: (Visitor visitor) -> void

# File lib/prism/node.rb, line 15516
def accept(visitor)
  visitor.visit_undef_node(self)
end

child_nodes() click to toggle source

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

# File lib/prism/node.rb, line 15521
def child_nodes
  [*names]
end

Also aliased as: deconstruct

comment_targets() click to toggle source

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

# File lib/prism/node.rb, line 15531
def comment_targets
  [*names, keyword_loc] #: Array[Prism::node | Location]
end

compact_child_nodes() click to toggle source

def compact_child_nodes: () -> Array

# File lib/prism/node.rb, line 15526
def compact_child_nodes
  [*names]
end

copy(node_id: self.node_id, location: self.location, flags: self.flags, names: self.names, keyword_loc: self.keyword_loc) click to toggle source

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

# File lib/prism/node.rb, line 15536
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

deconstruct()

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

Alias for: child_nodes

deconstruct_keys(keys) click to toggle source

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

# File lib/prism/node.rb, line 15544
def deconstruct_keys(keys)
  { node_id: node_id, location: location, names: names, keyword_loc: keyword_loc }
end

inspect() click to toggle source

def inspect -> String

# File lib/prism/node.rb, line 15563
def inspect
  InspectVisitor.compose(self)
end

keyword() click to toggle source

def keyword: () -> String

# File lib/prism/node.rb, line 15558
def keyword
  keyword_loc.slice
end

keyword_loc() click to toggle source

attr_reader keyword_loc: Location

# File lib/prism/node.rb, line 15551
def keyword_loc
  location = @keyword_loc
  return location if location.is_a?(Location)
  @keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

type() click to toggle source

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

# File lib/prism/node.rb, line 15568
def type
  :undef_node
end