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Class: Prism::CallOrWriteNode

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Node
Instance Chain:
self, Node
Inherits: Prism::Node
Defined in: lib/prism/node.rb,
prism/api_node.c

Overview

Represents the use of the {||=} operator on a call.

foo.bar ||= value
^^^^^^^^^^^^^^^^^

Class Method Summary

Node - Inherited

.fields

Returns a list of the fields that exist for this node class.

.type

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.

Instance Attribute Summary

Node - Inherited

#newline?

Returns true if the node has the newline flag set.

#node_id

A unique identifier for this node.

#static_literal?

Returns true if the node has the static literal flag set.

#flags

An bitset of flags for this node.

#source

A pointer to the source that this node was created from.

#newline_flag?

Instance Method Summary

Node - Inherited

#accept

Accepts a visitor and calls back into the specialized visit function.

#breadth_first_search

Returns the first node that matches the given block when visited in a depth-first search.

#cached_end_code_units_column

Delegates to the cached_end_code_units_column of the associated location object.

#cached_end_code_units_offset

Delegates to the cached_end_code_units_offset of the associated location object.

#cached_start_code_units_column

Delegates to the cached_start_code_units_column of the associated location object.

#cached_start_code_units_offset

Delegates to the cached_start_code_units_offset of the associated location object.

#child_nodes

Returns an array of child nodes, including nils in the place of optional nodes that were not present.

#comment_targets

Returns an array of child nodes and locations that could potentially have comments attached to them.

#comments

Delegates to the comments of the associated location object.

#compact_child_nodes

Returns an array of child nodes, excluding any nils in the place of optional nodes that were not present.

#deconstruct

Alias for Node#child_nodes.

#each_child_node

With a block given, yields each child node.

#end_character_column

Delegates to the end_character_column of the associated location object.

#end_character_offset

Delegates to the end_character_offset of the associated location object.

#end_column

Delegates to the end_column of the associated location object.

#end_line

Delegates to the end_line of the associated location object.

#end_offset

The end offset of the node in the source.

#inspect

Returns a string representation of the node.

#leading_comments

Delegates to the leading_comments of the associated location object.

#location

A Location instance that represents the location of this node in the source.

#pretty_print

Similar to inspect, but respects the current level of indentation given by the pretty print object.

#save

Save this node using a saved source so that it can be retrieved later.

#save_location

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

#script_lines
#slice

Slice the location of the node from the source.

#slice_lines

Slice the location of the node from the source, starting at the beginning of the line that the location starts on, ending at the end of the line that the location ends on.

#source_lines

Returns all of the lines of the source code associated with this node.

#start_character_column

Delegates to the start_character_column of the associated location object.

#start_character_offset

Delegates to the start_character_offset of the associated location object.

#start_column

Delegates to the start_column of the associated location object.

#start_line

Delegates to the start_line of the associated location object.

#start_offset

The start offset of the node in the source.

#to_dot

Convert this node into a graphviz dot graph string.

#trailing_comments

Delegates to the trailing_comments of the associated location object.

#tunnel

Returns a list of nodes that are descendants of this node that contain the given line and column.

#type

Sometimes you want to check an instance of a node against a list of classes to see what kind of behavior to perform.

#deprecated, #newline_flag!

Constructor Details

.new(source, node_id, location, flags, receiver, call_operator_loc, message_loc, read_name, write_name, operator_loc, value) ⇒ CallOrWriteNode

Initialize a new CallOrWriteNode node.

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3247

def initialize(source, node_id, location, flags, receiver, call_operator_loc, message_loc, read_name, write_name, operator_loc, value)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @receiver = receiver
  @call_operator_loc = call_operator_loc
  @message_loc = message_loc
  @read_name = read_name
  @write_name = write_name
  @operator_loc = operator_loc
  @value = value
end

Class Method Details

.type

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3435

def self.type
  :call_or_write_node
end

Instance Attribute Details

#attribute_write?Boolean (readonly)

def attribute_write?: () -> bool

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3316

def attribute_write?
  flags.anybits?(CallNodeFlags::ATTRIBUTE_WRITE)
end

#ignore_visibility?Boolean (readonly)

def ignore_visibility?: () -> bool

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3321

def ignore_visibility?
  flags.anybits?(CallNodeFlags::IGNORE_VISIBILITY)
end

#read_name (readonly)

Represents the name of the method being called.

foo.bar ||= value # read_name {:bar}
    ^^^
[ GitHub ]

  
# File 'lib/prism/node.rb', line 3379

attr_reader :read_name

#receiver (readonly)

The object that the method is being called on. This can be either nil or any non-void expressions.

foo.bar ||= value
^^^
[ GitHub ]

  
# File 'lib/prism/node.rb', line 3329

attr_reader :receiver

#safe_navigation?Boolean (readonly)

def safe_navigation?: () -> bool

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3306

def safe_navigation?
  flags.anybits?(CallNodeFlags::SAFE_NAVIGATION)
end

#value (readonly)

Represents the value being assigned.

foo.bar ||= value
            ^^^^^
[ GitHub ]

  
# File 'lib/prism/node.rb', line 3407

attr_reader :value

#variable_call?Boolean (readonly)

def variable_call?: () -> bool

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3311

def variable_call?
  flags.anybits?(CallNodeFlags::VARIABLE_CALL)
end

#write_name (readonly)

Represents the name of the method being written to.

foo.bar ||= value # write_name {:bar=}
    ^^^
[ GitHub ]

  
# File 'lib/prism/node.rb', line 3385

attr_reader :write_name

Instance Method Details

#===(other)

Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3441

def ===(other)
  other.is_a?(CallOrWriteNode) &&
    (flags === other.flags) &&
    (receiver === other.receiver) &&
    (call_operator_loc.nil? == other.call_operator_loc.nil?) &&
    (message_loc.nil? == other.message_loc.nil?) &&
    (read_name === other.read_name) &&
    (write_name === other.write_name) &&
    (operator_loc.nil? == other.operator_loc.nil?) &&
    (value === other.value)
end

#accept(visitor)

def accept: (Visitor visitor) -> void

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3262

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

#call_operator

def call_operator: () -> String?

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3410

def call_operator
  call_operator_loc&.slice
end

#call_operator_loc

Represents the location of the call operator.

foo.bar ||= value
   ^
[ GitHub ]

  
# File 'lib/prism/node.rb', line 3335

def call_operator_loc
  location = @call_operator_loc
  case location
  when nil
    nil
  when Location
    location
  else
    @call_operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
  end
end

#child_nodes Also known as: #deconstruct

def child_nodes: () -> Array

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3267

def child_nodes
  [receiver, value]
end

#comment_targets

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3288

def comment_targets
  [*receiver, *call_operator_loc, *message_loc, operator_loc, value] #: Array[Prism::node | Location]
end

#compact_child_nodes

def compact_child_nodes: () -> Array

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3280

def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << receiver if receiver
  compact << value
  compact
end

#copy(node_id: self.node_id, location: self.location, flags: self.flags, receiver: self.receiver, call_operator_loc: self.call_operator_loc, message_loc: self.message_loc, read_name: self.read_name, write_name: self.write_name, operator_loc: self.operator_loc, value: self.value)

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?receiver: Prism.node?, ?call_operator_loc: Location?, ?message_loc: Location?, ?read_name: Symbol, ?write_name: Symbol, ?operator_loc: Location, ?value: Prism.node) -> CallOrWriteNode

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3293

def copy(node_id: self.node_id, location: self.location, flags: self.flags, receiver: self.receiver, call_operator_loc: self.call_operator_loc, message_loc: self.message_loc, read_name: self.read_name, write_name: self.write_name, operator_loc: self.operator_loc, value: self.value)
  CallOrWriteNode.new(source, node_id, location, flags, receiver, call_operator_loc, message_loc, read_name, write_name, operator_loc, value)
end

#deconstruct

Alias for #child_nodes.

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3298

alias deconstruct child_nodes

#deconstruct_keys(keys)

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, receiver: Prism.node?, call_operator_loc: Location?, message_loc: Location?, read_name: Symbol, write_name: Symbol, operator_loc: Location, value: Prism.node }

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3301

def deconstruct_keys(keys)
  { node_id: node_id, location: location, receiver: receiver, call_operator_loc: call_operator_loc, message_loc: message_loc, read_name: read_name, write_name: write_name, operator_loc: operator_loc, value: value }
end

#each_child_node {|receiver| ... }

def each_child_node: () { (Prism::node) -> void } -> void | () -> Enumerator

Yields:

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3272

def each_child_node
  return to_enum(:each_child_node) unless block_given?

  yield receiver if receiver
  yield value
end

#inspect

def inspect -> String

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3425

def inspect
  InspectVisitor.compose(self)
end

#message

def message: () -> String?

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3415

def message
  message_loc&.slice
end

#message_loc

Represents the location of the message.

foo.bar ||= value
    ^^^
[ GitHub ]

  
# File 'lib/prism/node.rb', line 3357

def message_loc
  location = @message_loc
  case location
  when nil
    nil
  when Location
    location
  else
    @message_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
  end
end

#operator

def operator: () -> String

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3420

def operator
  operator_loc.slice
end

#operator_loc

Represents the location of the operator.

foo.bar ||= value
        ^^^
[ GitHub ]

  
# File 'lib/prism/node.rb', line 3391

def operator_loc
  location = @operator_loc
  return location if location.is_a?(Location)
  @operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

#save_call_operator_loc(repository)

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3349

def save_call_operator_loc(repository)
  repository.enter(node_id, :call_operator_loc) unless @call_operator_loc.nil?
end

#save_message_loc(repository)

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3371

def save_message_loc(repository)
  repository.enter(node_id, :message_loc) unless @message_loc.nil?
end

#save_operator_loc(repository)

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3399

def save_operator_loc(repository)
  repository.enter(node_id, :operator_loc)
end

#type

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

[ GitHub ]

  
# File 'lib/prism/node.rb', line 3430

def type
  :call_or_write_node
end