Class: SyntaxTree::LParen

Inherits:
Node
  • Object
show all
Defined in:
lib/syntax_tree/node.rb

Overview

LParen represents the use of a left parenthesis, i.e., (.

Instance Attribute Summary collapse

Attributes inherited from Node

#location

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Node

#construct_keys, #pretty_print, #to_json

Constructor Details

#initialize(value:, location:) ⇒ LParen

Returns a new instance of LParen.



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# File 'lib/syntax_tree/node.rb', line 7333

def initialize(value:, location:)
  @value = value
  @location = location
  @comments = []
end

Instance Attribute Details

#comments ⇒ Object (readonly)

Array[ Comment | EmbDoc ]

the comments attached to this node



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# File 'lib/syntax_tree/node.rb', line 7331

def comments
  @comments
end

#value ⇒ Object (readonly)

String

the left parenthesis



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# File 'lib/syntax_tree/node.rb', line 7328

def value
  @value
end

Class Method Details

.default ⇒ Object

Because some nodes keep around a ( token so that comments can be attached to it if they occur in the source, oftentimes an LParen is a child of another node. This means it’s required at initialization time. To make it easier to create LParen nodes without any specific value, this method provides a default node.



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# File 'lib/syntax_tree/node.rb', line 7377

def self.default
  new(value: "(", location: Location.default)
end

Instance Method Details

#===(other) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 7368

def ===(other)
  other.is_a?(LParen) && value === other.value
end

#accept(visitor) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 7339

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

#child_nodes ⇒ Object Also known as: deconstruct 



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# File 'lib/syntax_tree/node.rb', line 7343

def child_nodes
  []
end

#copy(value: nil, location: nil) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 7347

def copy(value: nil, location: nil)
  node =
    LParen.new(
      value: value || self.value,
      location: location || self.location
    )

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

#deconstruct_keys(_keys) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 7360

def deconstruct_keys(_keys)
  { value: value, location: location, comments: comments }
end

#format(q) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 7364

def format(q)
  q.text(value)
end