class SyntaxTree::Defined

Defined represents the use of the defined? operator. It can be used with and without parentheses.

defined?(variable)

Attributes

comments[R]

Array[ Comment | EmbDoc ]: the comments attached to this node

value[R]

Node: the value being sent to the keyword

Public Class Methods

new(value:, location:) click to toggle source

# File lib/syntax_tree/node.rb, line 4256
def initialize(value:, location:)
  @value = value
  @location = location
  @comments = []
end

Public Instance Methods

===(other) click to toggle source

# File lib/syntax_tree/node.rb, line 4299
def ===(other)
  other.is_a?(Defined) && value === other.value
end

accept(visitor) click to toggle source

# File lib/syntax_tree/node.rb, line 4262
def accept(visitor)
  visitor.visit_defined(self)
end

child_nodes() click to toggle source

# File lib/syntax_tree/node.rb, line 4266
def child_nodes
  [value]
end

Also aliased as: deconstruct

copy(value: nil, location: nil) click to toggle source

# File lib/syntax_tree/node.rb, line 4270
def copy(value: nil, location: nil)
  node =
    Defined.new(
      value: value || self.value,
      location: location || self.location
    )

  node.comments.concat(comments.map(&:copy))
  node
end

deconstruct()

Alias for: child_nodes

deconstruct_keys(_keys) click to toggle source

# File lib/syntax_tree/node.rb, line 4283
def deconstruct_keys(_keys)
  { value: value, location: location, comments: comments }
end

format(q) click to toggle source

# File lib/syntax_tree/node.rb, line 4287
def format(q)
  q.text("defined?(")
  q.group do
    q.indent do
      q.breakable_empty
      q.format(value)
    end
    q.breakable_empty
  end
  q.text(")")
end