Sigilize

sigilize.rb

class Module
  def sigilize(method_name)
    define_method("#{method_name}?") do |*args, **kwargs|
      !!method_name(*args, **kwargs)
    end
    
    define_method("#{method_name}!") do |*args, **kwargs|
      result = method_name(*args, **kwargs)
      raise StandardError unless result
      result
    end
  end
end

## Usage

class Process

  def status
    #whatever
  end
  
  sigilize(:status)
end