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Title: Constructing program animations using a pattern-based approach
Author: Cruz, Daniela
Henriques, Pedro
Pereira, Maria João
Keywords: Program animation
Patter-based visualization
Issue Date: 2007
Publisher: ComSIS Consortium
Citation: Cruz, Daniela; Henriques, Pedro; Pereira, Maria João (2007) - Constructing program animations using a pattern-based approach. Computer Science and Information Systems. ISSN 1820-0214. 4:2 p.99-116
Abstract: The aim of this paper is to discuss how our pattern-based strategy for the visualization of data and control flow can effectively be used to animate the program and exhibit its behavior. That result allows us to propose its use for Program Comprehension. The animator uses well known compiler techniques to inspect the source code in order to extract the necessary information to visualize it and understand program execution. We convert the source program into an internal decorated (or attributed) abstract syntax tree and then we visualize the structure by traversing it, and applying visualization rules at each node according to a pre-defined rule-base. In order to calculate the next step in the program execution, a set of rewriting rules are applied to the tree. The visualization of this new tree is shown and the program animation is constructed using an iterative process. No changes are made in the source code, and the execution is simulated step by step. Several examples of visualization are shown to illustrate the approach and support our idea of applying it in the context of a Program Comprehension environment.
Peer review: yes
ISSN: 1820-0214
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Appears in Collections:IC - Artigos em Revistas Não Indexados ao ISI/Scopus

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