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Erschienen in:
2007 | OriginalPaper | Buchkapitel
Reflection, Metalevel Computation, and Strategies
verfasst von : Manuel Clavel, Francisco Durán, Steven Eker, Patrick Lincoln, Narciso Martí-Oliet, José Meseguer, Carolyn Talcott
Erschienen in: All About Maude - A High-Performance Logical Framework
Verlag: Springer Berlin Heidelberg
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Informally, a reflective logic is a logic in which important aspects of its metatheory can be represented at the object level in a consistent way, so that the object-level representation correctly simulates the relevant metatheoretic aspects. In other words, a reflective logic is a logic which can be faithfully interpreted in itself. Maude’s language design and implementation make systematic use of the fact that rewriting logic is reflective [66, 56, 67, 68]. This makes the metatheory of rewriting logic accessible to the user in a clear and principled way. However, since a naive implementation of reflection can be computationally expensive, a good implementation must provide efficient ways of performing reflective computations. This chapter explains how this is achieved in Maude through its predefined
META-LEVEL
module, that can be found in the
prelude.maude
file.