Functional Logic Program Transformations

Michael Hanus; Steven Libby

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arXiv · 2601.13224

Functional Logic Program Transformations

Michael Hanus·Steven Libby

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Abstract

Many tools used to process programs, like compilers, analyzers, or verifiers, perform transformations on their intermediate program representation, like abstract syntax trees. Implementing such program transformations is a non-trivial task, since it is necessary to iterate over the complete syntax tree and apply various transformations at nodes in a tree. In this paper we show how the features of functional logic programming are useful to implement program transformations in a compact and comprehensible manner. For this purpose, we propose to write program transformations as partially defined and non-deterministic operations. Since the implementation of non-determinism usually causes some overhead compared to deterministically defined operations, we compare our approach to a deterministic transformation method. We evaluate these alternatives for the functional logic language Curry and its intermediate representation FlatCurry which is used in various analysis and verification tools and compilers.

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BibTeX RIS

Michael Hanus, Steven Libby. 2026-01-19. Functional Logic Program Transformations. https://arxiv.org/abs/2601.13224

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