Um mecanismo para extensibilidade de AspectJ em tempo de costura

• Autor(a) principal: Trevenzoli, Cleverson Carneiro
• Data de Publicação: 2013
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2650
• topic: Extensibilidade; XAJ; Designadores de pointcut; Extensibility; XAJ; Pointcut designators; CNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO

Domain specific aspect languages (DSALs) are programming languages with aspectoriented features specially designed to solve specific domains. The use of DSALs may offer several advantages such as improved productivity and reduced costs in maintenance. Extensible languages are a way to embed DSALs on general purpose aspects oriented languages. The XAJ language (eXtensible AspectJ) is an extension of AspectJ which uses the concept of syntax classes, units that extend classes with syntax definitions, building modular specifications for extensions. XAJ is built based on AspectBench, a compiler that has adequate support to allow language extensions. Aiming to increase the power of expressiveness of AspectJ, reducing the limitations and restrictions of the language as a set of pointcuts designators fixed and non-extensible, we present a mechanism for automatic code generation at weave time for XAJ syntax classes. The mechanism allows the definition of new pointcut designators by the users but it is still restrict to extensions that use only static information from the base program. This thesis describes problems that were found and solved, when implementing in XAJ this general mechanism and demonstrates a gain for the automation of code in the process of extensibility, removing the need for the user to modify several classes of a specific compiler by hand.