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Ensuring Streams Flow

Telford, Alastair J. and Turner, David A. (1997) Ensuring Streams Flow. In: Johnson, Michael, ed. Algebraic Methodology and Software Technology 6th International Conference. Lecture Notes in Computer Science . Springer, Berlin, Germany, pp. 509-523. ISBN 978-3-540-63888-9. E-ISBN 978-3-540-69661-2. (doi:10.1007/BFb0000493) (KAR id:21427)

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It is our aim to produce an elementary strong functional programming (ESFP) system. To be useful, ESFP should include structures such as streams which can be computationally unwound infinitely often. We describe a syntactic analysis to ensure that infinitely proceeding structures, which we shall term codata , are productive. This analysis is an extension of the check for guardedness that has been used with definitions over coinductive types in Martin-Lof's type theory and in the calculus of constructions. Our analysis is presented as a form of abstract interpretation that allows a wider syntactic class of corecursive definitions to be recognised as productive than in previous work. Thus programmers will have fewer restrictions on their use of infinite streams within a strongly normalizing functional language.

Item Type: Book section
DOI/Identification number: 10.1007/BFb0000493
Uncontrolled keywords: Functional Programming, Infinite Structures, Abstract Interpretation
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Sciences > School of Computing > Theoretical Computing Group
Depositing User: Mark Wheadon
Date Deposited: 02 Aug 2009 23:18 UTC
Last Modified: 31 May 2019 09:00 UTC
Resource URI: (The current URI for this page, for reference purposes)
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