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Erschienen in:
2011 | OriginalPaper | Buchkapitel
An Expression Processor: A Case Study in Refactoring Haskell Programs
verfasst von : Christopher Brown, Huiqing Li, Simon Thompson
Erschienen in: Trends in Functional Programming
Verlag: Springer Berlin Heidelberg
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Refactoring is the process of changing the structure of a program while preserving its behaviour in order to increase code quality, programming productivity and code reuse. With the advent of refactoring tools, refactoring can be performed semi-automatically, allowing refactorings to be performed (and undone) easily.
In this paper, we briefly describe a number of new refactorings for Haskell 98 programs implemented in the Haskell Refactorer, HaRe. In particular, a number of new structural and data-type refactorings are presented. We also implement a simple expression processor, clearly demonstrating how the refactorings and the HaRe tool can aid programmers in developing Haskell software. We conclude the paper with a discussion of the benefits of refactoring Haskell programs, together with their implementation and design limitations.