Class: Teacher::Function

Inherits:
Object
  • Object
show all
Defined in:
lib/teacher/function.rb

Instance Method Summary collapse

Constructor Details

#initialize(scope, &block) ⇒ Function

Returns a new instance of Function.



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# File 'lib/teacher/function.rb', line 4

def initialize(scope, &block)
  @scope = scope
  @body = block
end

Instance Method Details

#call(scope, args) ⇒ Object 



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# File 'lib/teacher/function.rb', line 9

def call(scope, args)
  args.reject! { |a| a.text_value.blank? }
  if args.to_a.any?
    tmp = [args.first]
    if args.length > 1
      last = args.last.elements.first
      if last.is_a?(List)
        tmp += last.eval(self)
      else
        tmp << last
      end
    end
    args = tmp
  end
  @body.call(*args)
end