Class: Predicator::AST::Node

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/predicator/ast.rb

Direct Known Subclasses

Binary, Terminal, Ternary, Unary

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(left) ⇒ Node

Returns a new instance of Node.



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# File 'lib/predicator/ast.rb', line 8

def initialize left
  @left = left
end

Instance Attribute Details

#left ⇒ Object

Returns the value of attribute left.



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# File 'lib/predicator/ast.rb', line 6

def left
  @left
end

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/predicator/ast.rb', line 12

def each &block
  Visitors::Each.new(block).accept self
end

#literal? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/predicator/ast.rb', line 37

def literal?; false; end

#to_dot ⇒ Object 



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# File 'lib/predicator/ast.rb', line 16

def to_dot
  Visitors::Dot.new.accept self
end

#to_instructions ⇒ Object 



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# File 'lib/predicator/ast.rb', line 20

def to_instructions
  Visitors::Instructions.new.accept self
end

#to_predicate ⇒ Object 



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# File 'lib/predicator/ast.rb', line 24

def to_predicate
  Visitors::Predicate.new.accept self
end

#to_s ⇒ Object 



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# File 'lib/predicator/ast.rb', line 28

def to_s
  Visitors::String.new.accept self
end

#type ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/predicator/ast.rb', line 32

def type
  raise NotImplementedError
end

#variable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/predicator/ast.rb', line 36

def variable?; false; end