class SyntaxTree::Undef

Undef represents the use of the undef keyword.

undef method

Attributes

comments[R]

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

symbols[R]

Array[ DynaSymbol | SymbolLiteral ]: the symbols to undefine

Public Class Methods

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

# File lib/syntax_tree/node.rb, line 11255
def initialize(symbols:, location:)
  @symbols = symbols
  @location = location
  @comments = []
end

Public Instance Methods

===(other) click to toggle source

# File lib/syntax_tree/node.rb, line 11298
def ===(other)
  other.is_a?(Undef) && ArrayMatch.call(symbols, other.symbols)
end

accept(visitor) click to toggle source

# File lib/syntax_tree/node.rb, line 11261
def accept(visitor)
  visitor.visit_undef(self)
end

child_nodes() click to toggle source

# File lib/syntax_tree/node.rb, line 11265
def child_nodes
  symbols
end

Also aliased as: deconstruct

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

# File lib/syntax_tree/node.rb, line 11269
def copy(symbols: nil, location: nil)
  node =
    Undef.new(
      symbols: symbols || self.symbols,
      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 11282
def deconstruct_keys(_keys)
  { symbols: symbols, location: location, comments: comments }
end

format(q) click to toggle source

# File lib/syntax_tree/node.rb, line 11286
def format(q)
  keyword = "undef "
  formatters = symbols.map { |symbol| UndefArgumentFormatter.new(symbol) }

  q.group do
    q.text(keyword)
    q.nest(keyword.length) do
      q.seplist(formatters) { |formatter| q.format(formatter) }
    end
  end
end