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LOPSTR
1994
Springer

A Transformation System for Definite Programs Based on Termination Analysis

11 years 10 months ago
A Transformation System for Definite Programs Based on Termination Analysis
We present a goal replacement rule whose main applicability condition is based on termination properties of the resulting transformed program. The goal replacement rule together with a multi-step unfolding rule forms a powerful and elegant transformation system for definite programs. It also sheds new light on the relationship between folding and goal replacement, and between different folding rules. Our explicit termination condition contrasts with other transformation systems in the literature, which contain conditions on folding and goal replacement, often rather complex, in order to avoid "introducing a loop" into a program. We prove that the goal replacement rule preserves the success set of a definite program. We define an extended version of goal replacement that also preserves the finite failure set. A powerful folding rule can be constructed as a special case of goal replacement, allowing folding with recursive rules, with no distinction between old and new predicate...
J. Cook, John P. Gallagher
Added 10 Aug 2010
Updated 10 Aug 2010
Type Conference
Year 1994
Where LOPSTR
Authors J. Cook, John P. Gallagher
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