class Prism::NumberedReferenceReadNode

Represents reading a numbered reference to a capture in the previous match.

$1
^^

Attributes

number [R]

The (1-indexed, from the left) number of the capture group. Numbered references that are too large result in this value being ‘0`.

$1          # number `1`

$5432       # number `5432`

$4294967296 # number `0`

Public Class Methods

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

Source

# File lib/prism/node.rb, line 13478
def initialize(source, node_id, location, flags, number)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @number = number
end

Initialize a new NumberedReferenceReadNode node.

type ()

Source

# File lib/prism/node.rb, line 13539
def self.type
  :numbered_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 13545
def ===(other)
  other.is_a?(NumberedReferenceReadNode) &&
    (number === other.number)
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 13487
def accept(visitor)
  visitor.visit_numbered_reference_read_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

Source

# File lib/prism/node.rb, line 13492
def child_nodes
  []
end

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

Also aliased as: deconstruct

comment_targets ()

Source

# File lib/prism/node.rb, line 13502
def comment_targets
  [] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

Source

# File lib/prism/node.rb, line 13497
def compact_child_nodes
  []
end

def compact_child_nodes: () -> Array

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

Source

# File lib/prism/node.rb, line 13507
def copy(node_id: self.node_id, location: self.location, flags: self.flags, number: self.number)
  NumberedReferenceReadNode.new(source, node_id, location, flags, number)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?number: Integer) -> NumberedReferenceReadNode

deconstruct ()

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

Alias for: child_nodes

deconstruct_keys (keys)

Source

# File lib/prism/node.rb, line 13515
def deconstruct_keys(keys)
  { node_id: node_id, location: location, number: number }
end

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

inspect ()

Source

# File lib/prism/node.rb, line 13529
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

type ()

Source

# File lib/prism/node.rb, line 13534
def type
  :numbered_reference_read_node
end

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