1. abc Compiler Zak Fry

2. Who and Where Programming Tools Group at Oxford University, UK – Oege de Moor Sable Research Group at McGill University, Quebec – Laurie Hendren

3. Language and Platform AspectJ Compiler – Aspect Oriented (compliment to OOP) Extension of Java developed by Xerox PARC Standalone with Eclipse support for generated code – Visualization support for crosscutting concerns

4. Architecture and Design Polyglot – frontend that aids in adding AspectJ to Java Soot – backend that deals with bytecode and aids in finding aspects/weaving Inputs:.java and.class files Outputs: AO.java and.class files

5. Representations AspectJ AST Java AST Aspect Info – Instructions for weaver Jimple – Skeleton – Regular IR – Woven IR – Final IR

6. Uses and Strengths AspectJ and Aspect Oriented research – Conversion of OO Java to AO Java – Studying, Analyzing, Improving AO techniques Strengths – Polyglot - Easy to extend or change aspect output – Soot (Jimple) – ease of translation between bytecode, Jimple, Java source – Optimization is much higher than competition

7. Benchmarks EAJ – redefinition of “adding variables to pointcuts” – shows ease of adding functionality to abc (AOSD 2005) Large study April 2006 of many AspectJ programs Also: runtime verification, tracematches

8. Limitations Slower than competitor ajc Requires ALL aspects to be in source – No separate compilation

9. Future Work Mostly individual extensions corresponding to individual projects – Monitoring synchronized blocks – Monitoring shared field access – Etc…