class Prism::OptionalParameterNode

Represents an optional parameter to a method, block, or lambda definition.

def a(b = 1)
      ^^^^^
end

Attributes

name [R]

attr_reader name: Symbol

value [R]

attr_reader value: Prism::node

Public Class Methods

new (source, node_id, location, flags, name, name_loc, operator_loc, value)

Source

# File lib/prism/node.rb, line 13658
def initialize(source, node_id, location, flags, name, name_loc, operator_loc, value)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @name = name
  @name_loc = name_loc
  @operator_loc = operator_loc
  @value = value
end

Initialize a new OptionalParameterNode node.

type ()

Source

# File lib/prism/node.rb, line 13755
def self.type
  :optional_parameter_node
end

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

Public Instance Methods

=== (other)

Source

# File lib/prism/node.rb, line 13761
def ===(other)
  other.is_a?(OptionalParameterNode) &&
    (flags === other.flags) &&
    (name === other.name) &&
    (name_loc.nil? == other.name_loc.nil?) &&
    (operator_loc.nil? == other.operator_loc.nil?) &&
    (value === other.value)
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 13670
def accept(visitor)
  visitor.visit_optional_parameter_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

Source

# File lib/prism/node.rb, line 13675
def child_nodes
  [value]
end

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

Also aliased as: deconstruct

comment_targets ()

Source

# File lib/prism/node.rb, line 13685
def comment_targets
  [name_loc, operator_loc, value] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

Source

# File lib/prism/node.rb, line 13680
def compact_child_nodes
  [value]
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, name: self.name, name_loc: self.name_loc, operator_loc: self.operator_loc, value: self.value)

Source

# File lib/prism/node.rb, line 13690
def copy(node_id: self.node_id, location: self.location, flags: self.flags, name: self.name, name_loc: self.name_loc, operator_loc: self.operator_loc, value: self.value)
  OptionalParameterNode.new(source, node_id, location, flags, name, name_loc, operator_loc, value)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?name: Symbol, ?name_loc: Location, ?operator_loc: Location, ?value: Prism::node) -> OptionalParameterNode

deconstruct ()

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

Alias for: child_nodes

deconstruct_keys (keys)

Source

# File lib/prism/node.rb, line 13698
def deconstruct_keys(keys)
  { node_id: node_id, location: location, name: name, name_loc: name_loc, operator_loc: operator_loc, value: value }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, name: Symbol, name_loc: Location, operator_loc: Location, value: Prism::node }

inspect ()

Source

# File lib/prism/node.rb, line 13745
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

name_loc ()

Source

# File lib/prism/node.rb, line 13711
def name_loc
  location = @name_loc
  return location if location.is_a?(Location)
  @name_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

attr_reader name_loc: Location

operator ()

Source

# File lib/prism/node.rb, line 13740
def operator
  operator_loc.slice
end

def operator: () -> String

operator_loc ()

Source

# File lib/prism/node.rb, line 13724
def operator_loc
  location = @operator_loc
  return location if location.is_a?(Location)
  @operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

attr_reader operator_loc: Location

repeated_parameter? ()

Source

# File lib/prism/node.rb, line 13703
def repeated_parameter?
  flags.anybits?(ParameterFlags::REPEATED_PARAMETER)
end

def repeated_parameter?: () -> bool

save_name_loc (repository)

Source

# File lib/prism/node.rb, line 13719
def save_name_loc(repository)
  repository.enter(node_id, :name_loc)
end

Save the name_loc location using the given saved source so that it can be retrieved later.

save_operator_loc (repository)

Source

# File lib/prism/node.rb, line 13732
def save_operator_loc(repository)
  repository.enter(node_id, :operator_loc)
end

Save the operator_loc location using the given saved source so that it can be retrieved later.

type ()

Source

# File lib/prism/node.rb, line 13750
def type
  :optional_parameter_node
end

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