Class: Prism::NumberedReferenceReadNode

Inherits:

PrismNode

• Object
• PrismNode
• Prism::NumberedReferenceReadNode

Defined in:

lib/prism/node.rb,
ext/prism/api_node.c

Overview

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

$1
^^

Instance Attribute Summary

• #number ⇒ Object readonly

  The (1-indexed, from the left) number of the capture group.

Class Method Summary

• .type ⇒ Object

  Return a symbol representation of this node type.

Instance Method Summary

• #===(other) ⇒ Object

  Implements case-equality for the node.

• #accept(visitor) ⇒ Object

  def accept: (Visitor visitor) -> void.

• #child_nodes ⇒ Object (also: #deconstruct)

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

• #comment_targets ⇒ Object

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

• #compact_child_nodes ⇒ Object

  def compact_child_nodes: () -> Array.

• #copy(node_id: self.node_id, location: self.location, flags: self.flags, number: self.number) ⇒ Object

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

• #deconstruct_keys(keys) ⇒ Object

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

• #initialize(source, node_id, location, flags, number) ⇒ NumberedReferenceReadNode constructor

  Initialize a new NumberedReferenceReadNode node.

• #inspect ⇒ Object

  def inspect -> String.

• #type ⇒ Object

  Return a symbol representation of this node type.

Constructor Details

#initialize(source, node_id, location, flags, number) ⇒ NumberedReferenceReadNode

Initialize a new NumberedReferenceReadNode node.

# File 'lib/prism/node.rb', line 12344

def initialize(source, node_id, location, flags, number)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @number = number
end

Instance Attribute Details

#number ⇒ Object (readonly)

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`

# File 'lib/prism/node.rb', line 12392

def number
  @number
end

Class Method Details

.type ⇒ Object

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

# File 'lib/prism/node.rb', line 12405

def self.type
  :numbered_reference_read_node
end

Instance Method Details

#===(other) ⇒ Object

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 12411

def ===(other)
  other.is_a?(NumberedReferenceReadNode) &&
    (number === other.number)
end

#accept(visitor) ⇒ Object

def accept: (Visitor visitor) -> void

# File 'lib/prism/node.rb', line 12353

def accept(visitor)
  visitor.visit_numbered_reference_read_node(self)
end

#child_nodes ⇒ Object Also known as: deconstruct

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

# File 'lib/prism/node.rb', line 12358

def child_nodes
  []
end

#comment_targets ⇒ Object

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

# File 'lib/prism/node.rb', line 12368

def comment_targets
  [] #: Array[Prism::node | Location]
end

#compact_child_nodes ⇒ Object

def compact_child_nodes: () -> Array

# File 'lib/prism/node.rb', line 12363

def compact_child_nodes
  []
end

#copy(node_id: self.node_id, location: self.location, flags: self.flags, number: self.number) ⇒ Object

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

# File 'lib/prism/node.rb', line 12373

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

#deconstruct_keys(keys) ⇒ Object

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

# File 'lib/prism/node.rb', line 12381

def deconstruct_keys(keys)
  { node_id: node_id, location: location, number: number }
end

#inspect ⇒ Object

def inspect -> String

# File 'lib/prism/node.rb', line 12395

def inspect
  InspectVisitor.compose(self)
end

#type ⇒ Object

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

# File 'lib/prism/node.rb', line 12400

def type
  :numbered_reference_read_node
end