Class: Bool::Evaluator

Inherits:
Object
  • Object
show all
Defined in:
lib/bool/evaluator.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.new ⇒ Object 



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# File 'lib/bool/evaluator.rb', line 6

def self.new
  Java::Bool::Evaluator.new
end

Instance Method Details

#visit_and(node, vars) ⇒ Object 



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# File 'lib/bool/evaluator.rb', line 15

def visit_and(node, vars)
  evaluate(node.left, vars) && evaluate(node.right, vars)
end

#visit_not(node, vars) ⇒ Object 



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# File 'lib/bool/evaluator.rb', line 23

def visit_not(node, vars)
  !evaluate(node.operand, vars)
end

#visit_or(node, vars) ⇒ Object 



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# File 'lib/bool/evaluator.rb', line 19

def visit_or(node, vars)
  evaluate(node.left, vars) || evaluate(node.right, vars)
end

#visit_var(node, vars) ⇒ Object 



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# File 'lib/bool/evaluator.rb', line 11

def visit_var(node, vars)
  !!vars.index(node.token.value)
end