Polyglot is an extensible compiler framework that supports the easy creation of compilers for languages similar to Java, while avoiding code duplication.

Join point interception (JPI), is considered an important cornerstone of aspect-oriented languages. However, we claim that JPI alone does not suffice for a modular structuring of aspects. We propose Caesar, a model for aspect-oriented programming with a higher-level module concept on top of JPI, which enables reuse and componentization of aspects, allows us to use aspects polymorphically, and introduces a novel concept for dynamic aspect deployment.

Advice is a mechanism used by advanced object-oriented and aspect-oriented programming languages to augment the behavior of methods in a program. Advice can help to make programs more modular by separating crosscutting concerns more e#ectively, but it also challenges existing ideas about modularity and separate development.

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We present Jiazzi, a system that enables the construction of largescale binary components in Java. Jiazzi components can be thought of as generalizations of Java packages with added support for external linking and separate compilation. Jiazzi components are practical because they are constructed out of standard Java source code. Jiazzi requires neither extensions to the Java language nor special conventions for writing Java source code that will go inside a component. Our components are expressive because Jiazzi supports cyclic component linking and mixins, which are used together in an open class pattern that enables the modular addition of new features to existing classes. This paper describes Jiazzi, how it enhances Java with components, its implementation, and how type checking works. An implementation of Jiazzi is available for download.

In general, aspect-oriented programs require a whole-program analysis to understand the semantics of a single method invocation. This property can make reasoning difficult, impeding maintenance efforts, contrary to a stated goal of aspect-oriented programming. We propose some simple modifications to AspectJ that permit modular reasoning. This eliminates the need for whole-program analysis and makes code easier to understand and maintain. 1.

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. 1

and have found that it is complete and satisfactory in all respects, and that any and all revisions required by the final examining committee have been made.

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Applications running on the Internet, or on limited-resource devices, need to be able to adapt to changes in their execution environment at run-time. Current languages and systems fall short of enabling developers to migrate and recon gure application sub-components at program-execution time.