Class: Tesco::Class

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

Overview

Unobtrusive modifications to the Class class.

Instance Method Summary collapse

Instance Method Details

#attr_reader(*params, &block) ⇒ Object

Pass a block to attr_reader and the block will be evaluated in the context of the class instance before the instance variable is returned.



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# File 'lib/tesco.rb', line 24

def attr_reader(*params,&block)
  if block_given?
    params.each do |sym|
      # Create the reader method
      define_method(sym) do
        # Force the block to execute before we…
       self.instance_eval(&block)
        # … return the instance variable
        self.instance_variable_get("@#{sym}")
      end
    end
  else # Keep the original function of attr_reader
    params.each do |sym|
      attr sym
    end
  end
end