A calculus with polymorphic and polyvariant flow types

J. B. Wells, Allyn Dimock, Robert Muller, Franklyn Turbak

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We present ?CIL, a typed ?-calculus which serves as the foundation for a typed intermediate language for optimizing compilers for higher-order polymorphic programming languages. The key innovation of ?CIL is a novel formulation of intersection and union types and flow labels on both terms and types. These flow types can encode polyvariant control and data flow information within a polymorphically typed program representation. Flow types can guide a compiler in generating customized data representations in a strongly typed setting. Since ?CIL enjoys confluence, standardization, and subject reduction properties, it is a valuable tool for reasoning about programs and program transformations.

Original languageEnglish
Pages (from-to)183-227
Number of pages45
JournalJournal of Functional Programming
Volume12
Issue number3
DOIs
Publication statusPublished - 2002

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