منابع مشابه
Denotational Semantics and Refinement
Denotational descriptions are frequently presented in terms of a sequence of descriptions of programming languages of increasing complexity. We discuss a formal approach to the study of such description sequences in terms of a refinement relation, showing how the informal use made of this approach in tutorial introductions to denotational semantics may be formally justified.
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We present a semantics for an applied call-by-value λ-calculus that is compositional, extensional, and elementary. We present four dierent views of the semantics: 1) as a relational (big-step) semantics that is not operational but instead declarative, 2) as a denotational semantics that does not use domain theory, 3) as a non-deterministic interpreter, and 4) as a variant of the intersection t...
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The types are , ::= Nat ∣ → . All the terms in the language come with explicit types. In particular, we assume an infinite, countable set of variables of each type , and write x for a variable of type . The terms t of type (in short, t : ) are defined by induction on their size by : – every variable x is of type ; – if N : , then x ⋅N is a term of type → ; – if M : → and N : , then MN is a term...
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This paper shows that CPP, the preprocessor of the C language, can be seen as a programming language in which directives are statements, parametrized macros are functions, files are procedures, directories are modules, and command lines are programs. The semantics of CPP can therefore be described using traditional techniques. This paper describes the semantics of CPP in a denotational style. B...
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In 1969 Dana Scott suggested, [Sco93], that a Tarskian semantics could be given to programming languages by employing ordered structures of a certain kind, now known as domains. One of his key insights was that recursion can be modelled via the least fixpoint of endofunctions on domains. Shortly afterwards Gordon Plotkin, explored this proposal further; among the many results of his landmark pa...
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ژورنال
عنوان ژورنال: Science of Computer Programming
سال: 1988
ISSN: 0167-6423
DOI: 10.1016/0167-6423(88)90009-3