Tuesday, February 26, 2002

Lackwit: A Program Understanding Tool Based on Type Inference - O'CALLAHAN, JACKSON (ResearchIndex)
Abstract: By determining, statically, where the structure of a program requires sets of variables to share a common representation, we can identify abstract data types, detect abstraction violations, find unused variables, functions, and fields of data structures, detect simple errors in operations on abstract datatypes, and locate sites of possible references to a value. We compute representation sharing with type inference, using types to encode representations. The method is efficient, fully automatic, and smoothly integrates pointer aliasing and higher-order functions. We show how we used a prototype tool to answer a user's questions about a 17,000 line program written in C. Keywords...


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