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DOI: 10.4230/LIPIcs.ECOOP.2021.18
URN: urn:nbn:de:0030-drops-140615
URL: https://drops.dagstuhl.de/opus/volltexte/2021/14061/
Tondwalkar, Anish ; Kolosick, Matthew ; Jhala, Ranjit
Refinements of Futures Past: Higher-Order Specification with Implicit Refinement Types
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Abstract
Refinement types decorate types with assertions that enable automatic verification. Like assertions, refinements are limited to binders that are in scope, and hence, cannot express higher-order specifications. Ghost variables circumvent this limitation but are prohibitively tedious to use as the programmer must divine and explicate their values at all call-sites. We introduce Implicit Refinement Types which turn ghost variables into implicit pair and function types, in a way that lets the refinement typechecker automatically synthesize their values at compile time. Implicit Refinement Types further take advantage of refinement type information, allowing them to be used as a lightweight verification tool, rather than merely as a technique to automate programming tasks. We evaluate the utility of Implicit Refinement Types by showing how they enable the modular specification and automatic verification of various higher-order examples including stateful protocols, access control, and resource usage.
BibTeX - Entry
@InProceedings{tondwalkar_et_al:LIPIcs.ECOOP.2021.18,
author = {Tondwalkar, Anish and Kolosick, Matthew and Jhala, Ranjit},
title = {{Refinements of Futures Past: Higher-Order Specification with Implicit Refinement Types}},
booktitle = {35th European Conference on Object-Oriented Programming (ECOOP 2021)},
pages = {18:1--18:29},
series = {Leibniz International Proceedings in Informatics (LIPIcs)},
ISBN = {978-3-95977-190-0},
ISSN = {1868-8969},
year = {2021},
volume = {194},
editor = {M{\o}ller, Anders and Sridharan, Manu},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/opus/volltexte/2021/14061},
URN = {urn:nbn:de:0030-drops-140615},
doi = {10.4230/LIPIcs.ECOOP.2021.18},
annote = {Keywords: Refinement Types, Implicit Parameters, Verification, Dependent Pairs}
}
| Keywords: | Refinement Types, Implicit Parameters, Verification, Dependent Pairs | |
| Seminar: | 35th European Conference on Object-Oriented Programming (ECOOP 2021) | |
| Issue date: | 2021 | |
| Date of publication: | 06.07.2021 | |
| Supplementary Material: | Software (ECOOP 2021 Artifact Evaluation approved artifact): https://doi.org/10.4230/DARTS.7.2.3 archived at: https://archive.softwareheritage.org/swh:1:snp:aeaf3dbb58f5be84b565e73b5ade1503ee8cb6d6 |
