class Prism::BackReferenceReadNode

Represents reading a reference to a field in the previous match.

$'
^^

Attributes

name [R]

The name of the back-reference variable, including the leading $.

$& # name `:$&`

$+ # name `:$+`

Public Class Methods

new (source, node_id, location, flags, name)

Source

# File lib/prism/node.rb, line 1406
def initialize(source, node_id, location, flags, name)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @name = name
end

Initialize a new BackReferenceReadNode node.

type ()

Source

# File lib/prism/node.rb, line 1465
def self.type
  :back_reference_read_node
end

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

Public Instance Methods

=== (other)

Source

# File lib/prism/node.rb, line 1471
def ===(other)
  other.is_a?(BackReferenceReadNode) &&
    (name === other.name)
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 1415
def accept(visitor)
  visitor.visit_back_reference_read_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

Source

# File lib/prism/node.rb, line 1420
def child_nodes
  []
end

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

Also aliased as: deconstruct

comment_targets ()

Source

# File lib/prism/node.rb, line 1430
def comment_targets
  [] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

Source

# File lib/prism/node.rb, line 1425
def compact_child_nodes
  []
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, name: self.name)

Source

# File lib/prism/node.rb, line 1435
def copy(node_id: self.node_id, location: self.location, flags: self.flags, name: self.name)
  BackReferenceReadNode.new(source, node_id, location, flags, name)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?name: Symbol) -> BackReferenceReadNode

deconstruct ()

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

Alias for: child_nodes

deconstruct_keys (keys)

Source

# File lib/prism/node.rb, line 1443
def deconstruct_keys(keys)
  { node_id: node_id, location: location, name: name }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, name: Symbol }

inspect ()

Source

# File lib/prism/node.rb, line 1455
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

type ()

Source

# File lib/prism/node.rb, line 1460
def type
  :back_reference_read_node
end

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