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The Computer Journal 2004 47(6):651-661; doi:10.1093/comjnl/47.6.651
© 2004 by British Computer Society
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The Green Language Exception System

José de Oliveira Guimar

Departamento de Computação, UFSCar, São Carlos, SP 13565-905, Brazil

Exception systems have become popular because they uncouple error detection and handling thus allowing us to produce better software. However, the exception handling systems of many object-oriented languages benefit very little from object-oriented programming. The catch clauses following a try block are isolated pieces of code: they do not belong to classes and cannot be reused. This paper presents the object-oriented exception system of the Green language, which fully uses the object-oriented programming features. These include the use of classes, types and subtyping, objects and inheritance. The result is a powerful exception system completely integrated with the language.

Received 12 June 2003. Revised 9 December 2003.

* Email: jose{at}dc.ufscar.br


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