Cirstea, Horatiu and Lenglet, Serguei and Moreau, Pierre-Etienne - Faithful (meta-)encodings of programmable strategies into term rewriting systems

lmcs:4096 - Logical Methods in Computer Science, November 28, 2017, Volume 13, Issue 4
Faithful (meta-)encodings of programmable strategies into term rewriting systems

Authors: Cirstea, Horatiu and Lenglet, Serguei and Moreau, Pierre-Etienne

Rewriting is a formalism widely used in computer science and mathematical logic. When using rewriting as a programming or modeling paradigm, the rewrite rules describe the transformations one wants to operate and rewriting strategies are used to con- trol their application. The operational semantics of these strategies are generally accepted and approaches for analyzing the termination of specific strategies have been studied. We propose in this paper a generic encoding of classic control and traversal strategies used in rewrite based languages such as Maude, Stratego and Tom into a plain term rewriting system. The encoding is proven sound and complete and, as a direct consequence, estab- lished termination methods used for term rewriting systems can be applied to analyze the termination of strategy controlled term rewriting systems. We show that the encoding of strategies into term rewriting systems can be easily adapted to handle many-sorted signa- tures and we use a meta-level representation of terms to reduce the size of the encodings. The corresponding implementation in Tom generates term rewriting systems compatible with the syntax of termination tools such as AProVE and TTT2, tools which turned out to be very effective in (dis)proving the termination of the generated term rewriting systems. The approach can also be seen as a generic strategy compiler which can be integrated into languages providing pattern matching primitives; experiments in Tom show that applying our encoding leads to performances comparable to the native Tom strategies.


Source : oai:arXiv.org:1705.08632
DOI : DOI:10.23638/LMCS-13(4:16)2017
Volume: Volume 13, Issue 4
Published on: November 28, 2017
Submitted on: November 28, 2017
Keywords: Computer Science - Programming Languages,F.4


Share

Browsing statistics

This page has been seen 22 times.
This article's PDF has been downloaded 12 times.