Formal Techniques for Distributed Systems 12th IFIP WG 6.1 International Conference FMOODS 2010 and 30th IFIP WG 6.1 International Conference FORTE 2010, Amsterdam, The Netherlands, June 7-9, 2010
Conference papers
Static Type Analysis of Pattern Matching by Abstract Interpretation
Abstract : Pattern matching is one of the most attractive features of functional programming languages. Recently, pattern matching has been applied to programming languages supporting the main current object oriented features. In this paper, we present a static type analysis based on the abstract interpretation framework aimed at proving the exhaustiveness of pattern matchings and the safety of type casts. The analysis is composed by two distinct abstract domains. The first domain collects information about dynamic typing, while the second one tracks the types that an object cannot be instance of. The analysis has been implemented and applied to all the Scala library. The experimental results underline that our approach scales up since it analyzes a method in 90 msec in average. In addition, the analysis is precise in practice as well, since we prove the exhaustiveness of 42% of pattern matchings and 27% of the type casts without any manual annotation on the code.
https://hal.inria.fr/hal-01055154 Contributor : Hal IfipConnect in order to contact the contributor Submitted on : Monday, August 11, 2014 - 4:30:16 PM Last modification on : Thursday, May 27, 2021 - 1:54:05 PM Long-term archiving on: : Wednesday, November 26, 2014 - 10:15:31 PM
Pietro Ferrara. Static Type Analysis of Pattern Matching by Abstract Interpretation. Joint 12th IFIP WG 6.1 International Conference on Formal Methods for Open Object-Based Distributed Systems (FMOODS) / 30th IFIP WG 6.1 International Conference on Formal Techniques for Networked and Distributed Systems (FORTE), Jun 2010, Amsterdam, Netherlands. pp.186-200, ⟨10.1007/978-3-642-13464-7_15⟩. ⟨hal-01055154⟩