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:)

Source

# File lib/syntax_tree/node.rb, line 4271
def initialize(value:, location:)
  @value = value
  @location = location
  @comments = []
end

Public Instance Methods

=== (other)

Source

# File lib/syntax_tree/node.rb, line 4314
def ===(other)
  other.is_a?(Defined) && value === other.value
end

accept (visitor)

Source

# File lib/syntax_tree/node.rb, line 4277
def accept(visitor)
  visitor.visit_defined(self)
end

child_nodes ()

Source

# File lib/syntax_tree/node.rb, line 4281
def child_nodes
  [value]
end

Also aliased as: deconstruct

copy (value: nil, location: nil)

Source

# File lib/syntax_tree/node.rb, line 4285
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)

Source

# File lib/syntax_tree/node.rb, line 4298
def deconstruct_keys(_keys)
  { value: value, location: location, comments: comments }
end

format (q)

Source

# File lib/syntax_tree/node.rb, line 4302
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