Class: Udb::FreeTerm Private

Inherits:
Object
  • Object
show all
Extended by:
T::Sig
Includes:
Comparable
Defined in:
lib/udb/logic.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

represents a “free” term, i.e., one that is not bound to the problem at hand used by the Tseytin Transformation, which introduces new propositions to represent subformula

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FreeTerm

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of FreeTerm.



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# File 'lib/udb/logic.rb', line 1123

def initialize
  @id = FreeTerm.instance_variable_get(:@next_id)
  FreeTerm.instance_variable_set(:@next_id, @id + 1)
end

Instance Attribute Details

#id ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/logic.rb', line 1120

def id
  @id
end

Instance Method Details

#<=>(other) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/logic.rb', line 1157

def <=>(other)
  return nil unless other.is_a?(FreeTerm)

  @id <=> other.id
end

#eql?(other) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/udb/logic.rb', line 1177

def eql?(other)
  return false unless other.is_a?(FreeTerm)

  (self <=> other) == 0
end

#hash ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/logic.rb', line 1169

def hash = @id.hash

#to_h ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/logic.rb', line 1146

def to_h = {}

#to_idl(cfg_arch) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/logic.rb', line 1142

def to_idl(cfg_arch)
  "FreeTerm"
end

#to_s ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/logic.rb', line 1132

def to_s
  "t#{@id}"
end

#to_s_pretty ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/logic.rb', line 1149

def to_s_pretty = to_s

#to_z3 ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/logic.rb', line 1137

def to_z3
  @z3 ||= Z3.Bool(to_s)
end