Affordable Access

Access to the full text

Gradual Certified Programming in Coq

Authors
  • Tanter, Éric
  • Tabareau, Nicolas
Type
Preprint
Publication Date
Aug 22, 2015
Submission Date
Jun 12, 2015
Identifiers
DOI: 10.1145/2816707.2816710
Source
arXiv
License
Yellow
External links

Abstract

Expressive static typing disciplines are a powerful way to achieve high-quality software. However, the adoption cost of such techniques should not be under-estimated. Just like gradual typing allows for a smooth transition from dynamically-typed to statically-typed programs, it seems desirable to support a gradual path to certified programming. We explore gradual certified programming in Coq, providing the possibility to postpone the proofs of selected properties, and to check "at runtime" whether the properties actually hold. Casts can be integrated with the implicit coercion mechanism of Coq to support implicit cast insertion a la gradual typing. Additionally, when extracting Coq functions to mainstream languages, our encoding of casts supports lifting assumed properties into runtime checks. Much to our surprise, it is not necessary to extend Coq in any way to support gradual certified programming. A simple mix of type classes and axioms makes it possible to bring gradual certified programming to Coq in a straightforward manner.

Report this publication

Statistics

Seen <100 times