Module: AbstractClass

Included in:
RLTK::CG::AggregateType, RLTK::CG::BasicIntType, RLTK::CG::Constant, RLTK::CG::ConstantAggregate, RLTK::CG::ConstantInteger, RLTK::CG::ConstantNumber, RLTK::CG::ConstantReal, RLTK::CG::ExecutionEngine, RLTK::CG::NumberType, RLTK::CG::RealType, RLTK::CG::SimpleAggregateType, RLTK::CG::SimpleIntType, RLTK::CG::SimpleType, RLTK::CG::Type, RLTK::CG::User
Defined in:
lib/rltk/util/abstract_class.rb

Overview

A module used for making abstract classes. Any class that includes this module will not be able to be instantiated directly.

Class Method Summary collapse

Class Method Details

.included(klass) ⇒ Object

Callback method for when this module is included.

Parameters:

  • The Class object for the including class.



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# File 'lib/rltk/util/abstract_class.rb', line 12

def self.included(klass)
  klass.instance_exec do
    @abstract_class = klass
    
    def self.new(*args)
      if self == @abstract_class
        raise "Instantiating abstract class #{self} is not allowed."
      else
        super
      end
    end
  end
end