Foundations of Object-Oriented Languages: Types and Semantics
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ISBN |
026202523X |
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Release Date |
21 March 2002 |
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Category |
Programming Language Concept |
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Tags |
semantic,
object,
foundation,
foundations,
object-oriented,
types,
object oriented,
type,
language,
languages,
foundations of object-oriented languages: types and semantics,
oriented,
types and,
semantics,
026202523x,
"foundations of object-oriented languages",
formal semantics,
"foundations of object",
objective type question,
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Description
In recent years, object-oriented programming has emerged as the dominant computer programming style, and object-oriented languages such as C and Java enjoy wide use in academia and industry. This text explores the formal underpinnings of object-oriented languages to help the reader understand the fundamental concepts of these languages and the design decisions behind them.
The text begins by analyzing existing object-oriented languages, paying special attention to their type systems and impediments to expressiveness. It then examines two key features: subtypes and subclasses. After a brief introduction to the lambda calculus, it presents a prototypical object-oriented language, SOOL, with a simple type system similar to those of class-based object-oriented languages in common use. The text offers proof that the type system is sound by showing that the semantics preserves typing information. It concludes with a discussion of desirable features, such as parametric polymorphism and a MyType construct, that are not yet included in most statically typed object-oriented languages. |
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