Module: BinaryOperator

Included in:
EqualsOperator, GreaterThanOperator, GreaterThanOrEqualOperator, InOperator, LessThanOperator, LessThanOrEqualOperator, MatchOperator, ValueOperator, VarOperator
Defined in:
lib/json_expr/operators/binary_operator.rb

Instance Method Summary collapse

Instance Method Details

#binary(evaluator, lhs, rhs) ⇒ Object

This method is abstract.

method

Raises:

  • (NotImplementedError) 


19
20
21
 
# File 'lib/json_expr/operators/binary_operator.rb', line 19

def binary(evaluator, lhs, rhs)
  raise NotImplementedError.new("You must implement binary method.")
end

#evaluate(evaluator, args) ⇒ Object 



4
5
6
7
8
9
10
11
12
13
14
15
16
 
# File 'lib/json_expr/operators/binary_operator.rb', line 4

def evaluate(evaluator, args)
  if args.is_a? Array
    args_list = args
    lhs = args_list.size > 0 ? evaluator.evaluate(args_list[0]) : nil
    unless lhs.nil?
      rhs = args_list.size > 1 ? evaluator.evaluate(args_list[1]) : nil
      unless rhs.nil?
        return binary(evaluator, lhs, rhs)
      end
    end
  end
  nil
end