Stable relations and abstract interpretation of higher-order programs

We present a novel denotational semantics for the untyped call-by-value λ-calculus, where terms are interpreted as stable relations , i.e. as binary relations between substitutions and values, enjoying a monotonicity property. The denotation captures the input-output behaviour of higher-order progra...

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Vydáno v:Proceedings of ACM on programming languages Ročník 4; číslo ICFP; s. 1 - 30
Hlavní autoři: Montagu, Benoît, Jensen, Thomas
Médium: Journal Article
Jazyk:angličtina
Vydáno: ACM 02.08.2020
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ISSN:2475-1421, 2475-1421
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Shrnutí:We present a novel denotational semantics for the untyped call-by-value λ-calculus, where terms are interpreted as stable relations , i.e. as binary relations between substitutions and values, enjoying a monotonicity property. The denotation captures the input-output behaviour of higher-order programs, and is proved sound and complete with respect to the operational semantics. The definition also admits a presentation as a program logic. Following the principles of abstract interpretation, we use our denotational semantics as a collecting semantics to derive a modular relational analysis for higher-order programs. The analysis infers equalities between the arguments of a program and its result—a form of frame condition for functional programs.
ISSN:2475-1421
2475-1421
DOI:10.1145/3409001