Module: DeepClonable::ClassMethods

Defined in:
lib/deep_clonable.rb

Instance Method Summary collapse

Instance Method Details

#clone_method(clone_method_name, method_name = nil) ⇒ Object

Use this to define cloning version of the given in-place methods.

This method supports a common idiom where you create in-place and cloning versions of most operations. This method allows you to define only the in-place version (with the trailing bang (!), that part is important) and specify the cloning versions by name using this method.



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# File 'lib/deep_clonable.rb', line 54

def clone_method(clone_method_name, method_name = nil)
  clone_method_name = clone_method_name.to_s.gsub(/\!$/,'')
  method_name ||= "#{clone_method_name}!"
  class_eval %{
    def #{clone_method_name}(*args, &block)
      self.clone do |object|
        object.#{method_name}(*args)
        block ? block.call(object) : object
      end
    end
  }
end