class SyntaxTree::ArgParen

ArgParen represents wrapping arguments to a method inside a set of parentheses.

method(argument)

In the example above, there would be an ArgParen node around the Args node that represents the set of arguments being sent to the method method. The argument child node can be nil if no arguments were passed, as in:

method()

Attributes

arguments [R]

nil | Args | ArgsForward: the arguments inside the

parentheses

comments [R]

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

Public Class Methods

new (arguments:, location:)

Source

# File lib/syntax_tree/node.rb, line 735
def initialize(arguments:, location:)
  @arguments = arguments
  @location = location
  @comments = []
end

Public Instance Methods

=== (other)

Source

# File lib/syntax_tree/node.rb, line 784
def ===(other)
  other.is_a?(ArgParen) && arguments === other.arguments
end

accept (visitor)

Source

# File lib/syntax_tree/node.rb, line 741
def accept(visitor)
  visitor.visit_arg_paren(self)
end

arity ()

Source

# File lib/syntax_tree/node.rb, line 788
def arity
  arguments&.arity || 0
end

child_nodes ()

Source

# File lib/syntax_tree/node.rb, line 745
def child_nodes
  [arguments]
end

Also aliased as: deconstruct

copy (arguments: nil, location: nil)

Source

# File lib/syntax_tree/node.rb, line 749
def copy(arguments: nil, location: nil)
  node =
    ArgParen.new(
      arguments: arguments || self.arguments,
      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 762
def deconstruct_keys(_keys)
  { arguments: arguments, location: location, comments: comments }
end

format (q)

Source

# File lib/syntax_tree/node.rb, line 766
def format(q)
  unless arguments
    q.text("()")
    return
  end

  q.text("(")
  q.group do
    q.indent do
      q.breakable_empty
      q.format(arguments)
      q.if_break { q.text(",") } if q.trailing_comma? && trailing_comma?
    end
    q.breakable_empty
  end
  q.text(")")
end