Abstract. This paper presents a semantics-based compilation model for an aspect-oriented programming language based on its operational semantics. Using partial evaluation, the model can explain several issues in compilation processes, including how to find places in program text to insert aspect code and how to remove unnecessary run-time checks. It also illustrates optimization of calling-context sensitive pointcuts (cflow), implemented in real compilers.

Abstract. Modeling four aspect-oriented programming mechanisms shows the way in which each supports modular crosscutting. Comparing the models produces a clear three part characterization of what is required to support crosscutting structure: a common frame of reference that two (or more) programs can use to connect with each other and each provide their semantic contribution.

Abstract.A dataflow-based pointcut is proposed for aspect-oriented programming (AOP) languages. The pointcut specifies where aspects should be applied based on the origins of values. It is designed to be compatible with the other kinds of pointcuts in existing AOP languages. Primary application fields of the pointcut are the aspects in which flow of information is important, such as security. This paper presents the design of the pointcut with a web-application example, and its prototype implementation.