Titlebook: ECOOP ‘99 - Object-Oriented Programming; 13th European Confer Rachid Guerraoui Conference proceedings 1999 Springer-Verlag Berlin Heidelber

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Spirometry

Dynamic Query-Based Debuggingxperiments and a query cost model show that selection queries are efficient in most cases, while more costly join queries are practical when query evaluations are infrequent or query domains are small.

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Internal Iteration Externalizedthin an object-oriented language allows combining the safety and economic usage of internal iteration with the flexibility and client control of external iteration. Sample code is provided using the statically typed Eiffel language.

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A Core Calculus of Classes and Mixinsduced by applying mixins to superclasses. Objects are represented by records and produced by instantiating classes. The type system for objects uses only functional, record, and reference types, and there is a clean separation between subtyping and inheritance.

Gustatory

A study of the Allocation Behavior of the SPECjvm98 Java Benchmarkse distribution, and the overhead of object alignment. Among other things, we found that non-pointer data usually represents more than 50% of the allocated space for instance objects, that Java objects tend to live longer than objects in Smalltalk or ML, and that they are fairly small.

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Multi-Method Dispatch Using Multiple Row Displacement implementations of existing techniques: compressed n-dimensional tables, look-up automata and single-receiver projection. MRD uses comparable space to the other techniques, but has faster dispatch performance.

Androgen

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