Improving OOP Efficiency

• Use table lookup (array of method addresses) to make method lookup fast (C++).
• Cache selector and method at lowest class level to avoid search (Self).
• Compile specialized methods ``just in time'' (JIT) when first used:
  • method calls can be converted to function calls when the class is known
  • small methods such as obj.getX() can be compiled in-line
  • partial evaluation may improve efficiency