NDLI: Observing intermediate structures in a parallel lazy functional language

Content Provider	ACM Digital Library
Author	Rubio, Fernando Llana, Luis de la Encina, Alberto Hidalgo-Herrero, Mercedes
Abstract	Due to the use of higher-order functions and laziness, debugging lazy functional programs is not a trivial task. Fortunately, several debuggers have appeared during the last years. However, the difficulty of the debugging process is increased when considering parallel extensions of lazy functional languages. Thus, it is necessary not only to develop practical debuggers, but also to provide a clear semantic environment to understand what the debuggers should do. In this paper we present a formal framework for debugging two different parallel extensions of the lazy functional language Haskell. In order to do that, we define an operational semantics model which allows us to deal with side-effects and parallelism. By doing so, we provide a formalization of a parallel debugger we have already implemented by extending the sequential debugger Hood.
Starting Page	109
Ending Page	120
Page Count	12
File Format	PDF
ISBN	9781595937698
DOI	10.1145/1273920.1273935
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2007-07-14
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Parallel functional programming Semantics Debugging
Content Type	Text
Resource Type	Article

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Observing intermediate structures in a parallel lazy functional language