Type Abstraction Rules for References: A Comparison of Four which have Achieved Notoriety

Abstract

I present four type abstraction rules which have been introduced by various authors to permit polymorphic type safety in the presence of mutable data. Each of the type abstraction rules is discussed in the context of the language in which is was introduced, and the various abstraction rules are compared.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1991
Accession Number
ADA240076

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  • James W. O'toole Jr.

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  • Massachusetts Institute of Technology

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