call a protected static property on an instance of a class in ruby

To call a protected static property on an instance of a class in Ruby, you can use the instance_eval method. Here is an example:

main.rb
class MyClass
  protected_class_var = true
  def self.my_method
    protected_class_var
  end
end

my_object = MyClass.new

my_object.instance_eval { puts MyClass.send(:class_variable_get, :@protected_class_var) }
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In this example, we have a MyClass with a protected class variable called protected_class_var. We also have an instance of MyClass called my_object.

To access protected_class_var from my_object, we use instance_eval. Within the block passed to instance_eval, we call send on the MyClass class to get the value of @protected_class_var. We pass :class_variable_get to send to call the protected method that returns the value of @protected_class_var.

Note that using instance_eval to access protected or private methods and properties can be risky and is generally not recommended. It's better to refactor your code to avoid the need for this kind of access if possible.