Poll, Erik (1997) System F with Width-subtyping and Record Updating. In: Proceedings of the Third International Symposium on Theoretical Aspects of Computer Software. Lecture Notes In Computer Science, 1281. Springer LNCS pp. 439-457. ISBN 3-540-63388-X .
It is a well-known problem that F< - the polymorphic lambda calculus F extended with subtyping - does not provide so-called polymorphic updates, and that the standard PER model for F< does not provide interpretations for these operations. The polymorphic updates are interesting because they play an important role in some type-theoretic models of object-oriented languages. We present an extension Fwidth of system F with a restricted form of subtyping - width-subtyping - on record types, that does provide these operations. The main result is that we show it is still possible to give a PER model for this system.
|Item Type:||Conference or workshop item (Paper)|
|Uncontrolled keywords:||subtyping, polymorphism|
|Subjects:||Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Computing > Theoretical Computing Group|
|Depositing User:||Mark Wheadon|
|Date Deposited:||01 Aug 2009 17:08|
|Last Modified:||06 Sep 2011 03:54|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/21451 (The current URI for this page, for reference purposes)|
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