Class: Nashorn::Ruby::AttributeAccess

Inherits:
AccessBase
  • Object
show all
Defined in:
lib/nashorn/ruby/attribute_access.rb

Instance Method Summary collapse

Methods inherited from AccessBase

#get_slot, #has_slot, #set_slot

Instance Method Details

#get(object, name) ⇒ Object 



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# File 'lib/nashorn/ruby/attribute_access.rb', line 13

def get(object, name)
  name_sym = name.to_s.to_sym
  if object.respond_to?(name_sym)
    method = object.method(name_sym)
    if method.arity == 0 && # check if it is an attr_reader
      ( object.respond_to?(:"#{name}=") ||
          object.instance_variables.find { |var| var.to_sym == :"@#{name}" } )
      return Nashorn.to_js(method.call)
    else
      return Function.wrap(method.unbind)
    end
  elsif object.respond_to?(:"#{name}=")
    return nil # it does have the property but is non readable
  end
  super
end

#has(object, name) ⇒ Object 



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# File 'lib/nashorn/ruby/attribute_access.rb', line 5

def has(object, name)
  if object.respond_to?(name.to_s) ||
     object.respond_to?(:"#{name}=") # might have a writer but no reader
    return true
  end
  super
end

#set(object, name, value) ⇒ Object Also known as: put 



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# File 'lib/nashorn/ruby/attribute_access.rb', line 30

def set(object, name, value)
  if object.respond_to?(set_name = :"#{name}=")
    rb_value = Nashorn.to_rb(value)
    return object.send(set_name, rb_value)
  end
  super
end