class Prism::ImaginaryNode

Represents an imaginary number literal.




attr_reader numeric: FloatNode | IntegerNode | RationalNode

Public Class Methods

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

def initialize: (FloatNode | IntegerNode | RationalNode numeric, Location location) -> void

# File lib/prism/node.rb, line 8540
def initialize(source, numeric, location)
  @source = source
  @newline = false
  @location = location
  @numeric = numeric
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 8616
def self.type

Public Instance Methods

accept(visitor) click to toggle source

def accept: (Visitor visitor) -> void

# File lib/prism/node.rb, line 8548
def accept(visitor)
child_nodes() click to toggle source

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

# File lib/prism/node.rb, line 8553
def child_nodes
Also aliased as: deconstruct
comment_targets() click to toggle source

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

# File lib/prism/node.rb, line 8563
def comment_targets
  [numeric] #: Array[Prism::node | Location]
compact_child_nodes() click to toggle source

def compact_child_nodes: () -> Array

# File lib/prism/node.rb, line 8558
def compact_child_nodes
copy(numeric: self.numeric, location: self.location) click to toggle source

def copy: (?numeric: FloatNode | IntegerNode | RationalNode, ?location: Location) -> ImaginaryNode

# File lib/prism/node.rb, line 8568
def copy(numeric: self.numeric, location: self.location), numeric, location)

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

Alias for: child_nodes
deconstruct_keys(keys) click to toggle source

def deconstruct_keys: (Array keys) -> { numeric: FloatNode | IntegerNode | RationalNode, location: Location }

# File lib/prism/node.rb, line 8576
def deconstruct_keys(keys)
  { numeric: numeric, location: location }
inspect(inspector = click to toggle source

def inspect(NodeInspector inspector) -> String

# File lib/prism/node.rb, line 8585
def inspect(inspector =
  inspector << inspector.header(self)
  inspector << "└── numeric:\n"
  inspector << inspector.child_node(numeric, "    ")
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 8606
def type
value() click to toggle source

Returns the value of the node as a Ruby Complex.

# File lib/prism/node_ext.rb, line 87
def value
  Complex(0, numeric.value)