class Prism::InstanceVariableWriteNode

Represents writing to an instance variable.

@foo = 1
^^^^^^^^

Attributes

name [R]

The name of the instance variable, which is a ‘@` followed by an [identifier](github.com/ruby/prism/blob/main/docs/parsing_rules.md#identifiers).

@x = :y       # name `:@x`

@_foo = "bar" # name `@_foo`

value [R]

The value to write to the instance variable. It can be any [non-void expression](github.com/ruby/prism/blob/main/docs/parsing_rules.md#non-void-expression).

@foo = :bar
       ^^^^

@_x = 1234
      ^^^^

Public Class Methods

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

Source

# File lib/prism/node.rb, line 10001
def initialize(source, node_id, location, flags, name, name_loc, value, operator_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @name = name
  @name_loc = name_loc
  @value = value
  @operator_loc = operator_loc
end

Initialize a new InstanceVariableWriteNode node.

type ()

Source

# File lib/prism/node.rb, line 10109
def self.type
  :instance_variable_write_node
end

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

Public Instance Methods

=== (other)

Source

# File lib/prism/node.rb, line 10115
def ===(other)
  other.is_a?(InstanceVariableWriteNode) &&
    (name === other.name) &&
    (name_loc.nil? == other.name_loc.nil?) &&
    (value === other.value) &&
    (operator_loc.nil? == other.operator_loc.nil?)
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 10013
def accept(visitor)
  visitor.visit_instance_variable_write_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

Source

# File lib/prism/node.rb, line 10018
def child_nodes
  [value]
end

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

Also aliased as: deconstruct

comment_targets ()

Source

# File lib/prism/node.rb, line 10028
def comment_targets
  [name_loc, value, operator_loc] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

Source

# File lib/prism/node.rb, line 10023
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, value: self.value, operator_loc: self.operator_loc)

Source

# File lib/prism/node.rb, line 10033
def copy(node_id: self.node_id, location: self.location, flags: self.flags, name: self.name, name_loc: self.name_loc, value: self.value, operator_loc: self.operator_loc)
  InstanceVariableWriteNode.new(source, node_id, location, flags, name, name_loc, value, operator_loc)
end

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

deconstruct ()

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

Alias for: child_nodes

deconstruct_keys (keys)

Source

# File lib/prism/node.rb, line 10041
def deconstruct_keys(keys)
  { node_id: node_id, location: location, name: name, name_loc: name_loc, value: value, operator_loc: operator_loc }
end

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

inspect ()

Source

# File lib/prism/node.rb, line 10099
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

name_loc ()

Source

# File lib/prism/node.rb, line 10056
def name_loc
  location = @name_loc
  return location if location.is_a?(Location)
  @name_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

The location of the variable name.

@_x = 1
^^^

operator ()

Source

# File lib/prism/node.rb, line 10094
def operator
  operator_loc.slice
end

def operator: () -> String

operator_loc ()

Source

# File lib/prism/node.rb, line 10081
def operator_loc
  location = @operator_loc
  return location if location.is_a?(Location)
  @operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

The location of the ‘=` operator.

@x = y
   ^

save_name_loc (repository)

Source

# File lib/prism/node.rb, line 10064
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 10089
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 10104
def type
  :instance_variable_write_node
end

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