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) click to toggle source

Initialize a new BackReferenceReadNode node.

# File lib/prism/node.rb, line 1177
def initialize(source, node_id, location, flags, name)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @name = name
end

type() click to toggle source

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

# File lib/prism/node.rb, line 1235
def self.type
  :back_reference_read_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 1241
def ===(other)
  other.is_a?(BackReferenceReadNode) &&
    (name === other.name)
end

accept(visitor) click to toggle source

def accept: (Visitor visitor) -> void

# File lib/prism/node.rb, line 1186
def accept(visitor)
  visitor.visit_back_reference_read_node(self)
end

child_nodes() click to toggle source

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

# File lib/prism/node.rb, line 1191
def child_nodes
  []
end

Also aliased as: deconstruct

comment_targets() click to toggle source

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

# File lib/prism/node.rb, line 1201
def comment_targets
  [] #: Array[Prism::node | Location]
end

compact_child_nodes() click to toggle source

def compact_child_nodes: () -> Array

# File lib/prism/node.rb, line 1196
def compact_child_nodes
  []
end

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

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

# File lib/prism/node.rb, line 1206
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

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, name: Symbol }

# File lib/prism/node.rb, line 1214
def deconstruct_keys(keys)
  { node_id: node_id, location: location, name: name }
end

inspect() click to toggle source

def inspect -> String

# File lib/prism/node.rb, line 1225
def inspect
  InspectVisitor.compose(self)
end

type() click to toggle source

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

# File lib/prism/node.rb, line 1230
def type
  :back_reference_read_node
end