Library migration is a challenging problem, where most existing approaches rely on prior knowledge. This can be, for example, information derived from change logs or statistical models of API usage.
This paper addresses a different API migration scenario where there is no prior knowledge of the target library. We have no historical changelogs and no access to its internal representation. To tackle this problem, this paper proposes a novel approach (M$^3$), where probabilistic program synthesis is used to semantically model the behavior of library functions. Then, we use an SMT-based code search engine to discover similar code in user applications. These discovered instances provide potential locations for API migrations.
We evaluate our approach against 7 well-known libraries from varied application domains, learning correct implementations for 94 functions. Our approach is integrated with standard compiler tooling, and we used this integration to evaluate migration opportunities in 9 existing C/C++ applications with over 1MLoC. We discover over 7,000 instances of these functions, of which more than 2,000 represent migration opportunities.
Tue 22 Sep Times are displayed in time zone: (UTC) Coordinated Universal Time change
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Bruce CollieUniversity of Edinburgh, Philip GinsbachGitHub Software UK, Jackson WoodruffUniversity of Edinburgh, Ajitha RajanUniversity of Edinburgh, Michael O'BoyleUniversity of EdinburghPre-print Media Attached
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Carlos Gavidia-CalderonUniversity College London, Federica SarroUniversity College London, UK, Mark HarmanUniversity College London, UK, Earl T. BarrUniversity College London, UKLink to publication DOI Pre-print Media Attached