Ensuring Streams Flow

Telford, Alastair J. and Turner, David A. (1997) Ensuring Streams Flow. In: Algebraic Methodology and Software Technology, 6th International Conference, AMAST '97, Sydney Australia, December 1997. (Full text available)

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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: Conference or workshop item (Paper)
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: 10 Jun 2014 14:00 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/21427 (The current URI for this page, for reference purposes)
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