class Prism::ForwardingSuperNode

Represents the use of the ‘super` keyword without parentheses or arguments.

super
^^^^^

Attributes

block[R]

attr_reader block: BlockNode?

Public Class Methods

new(source, block, location) click to toggle source

def initialize: (BlockNode? block, Location location) -> void

# File lib/prism/node.rb, line 7442
def initialize(source, block, location)
  @source = source
  @newline = false
  @location = location
  @block = block
end

type() click to toggle source

Similar to type, this method returns a symbol that you can use for splitting on the type of the node without having to do a long === chain. Note that like type, it will still be slower than using == for a single class, but should be faster in a case statement or an array comparison.

def self.type: () -> Symbol

# File lib/prism/node.rb, line 7516
def self.type
  :forwarding_super_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 7522
def ===(other)
  other.is_a?(ForwardingSuperNode) &&
    (block === other.block)
end

accept(visitor) click to toggle source

def accept: (Visitor visitor) -> void

# File lib/prism/node.rb, line 7450
def accept(visitor)
  visitor.visit_forwarding_super_node(self)
end

child_nodes() click to toggle source

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

# File lib/prism/node.rb, line 7455
def child_nodes
  [block]
end

Also aliased as: deconstruct

comment_targets() click to toggle source

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

# File lib/prism/node.rb, line 7467
def comment_targets
  [*block] #: Array[Prism::node | Location]
end

compact_child_nodes() click to toggle source

def compact_child_nodes: () -> Array

# File lib/prism/node.rb, line 7460
def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << block if block
  compact
end

copy(block: self.block, location: self.location) click to toggle source

def copy: (?block: BlockNode?, ?location: Location) -> ForwardingSuperNode

# File lib/prism/node.rb, line 7472
def copy(block: self.block, location: self.location)
  ForwardingSuperNode.new(source, block, location)
end

deconstruct()

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

Alias for: child_nodes

deconstruct_keys(keys) click to toggle source

def deconstruct_keys: (Array keys) -> { block: BlockNode?, location: Location }

# File lib/prism/node.rb, line 7480
def deconstruct_keys(keys)
  { block: block, location: location }
end

inspect() click to toggle source

def inspect -> String

# File lib/prism/node.rb, line 7488
def inspect
  InspectVisitor.compose(self)
end

type() click to toggle source

Sometimes you want to check an instance of a node against a list of classes to see what kind of behavior to perform. Usually this is done by calling ‘[cls1, cls2].include?(node.class)` or putting the node into a case statement and doing `case node; when cls1; when cls2; end`. Both of these approaches are relatively slow because of the constant lookups, method calls, and/or array allocations.

Instead, you can call type, which will return to you a symbol that you can use for comparison. This is faster than the other approaches because it uses a single integer comparison, but also because if you’re on CRuby you can take advantage of the fact that case statements with all symbol keys will use a jump table.

def type: () -> Symbol

# File lib/prism/node.rb, line 7506
def type
  :forwarding_super_node
end