Ghost: A Uniform and General-Purpose Proxy Implementation

Martinez Peck, Mariano; Bouraqadi, Noury; Ducasse, Stephane; Fabresse, Luc; Denker, Marcus

Type de document :

Pré-publication ou Document de travail

Titre :

Ghost: A Uniform and General-Purpose Proxy Implementation

Auteur(s) :

Martinez Peck, Mariano [Auteur]
Centre for Digital Systems [CERI SN - IMT Nord Europe]
Analyses and Languages Constructs for Object-Oriented Application Evolution [RMOD]
Bouraqadi, Noury [Auteur]
Centre for Digital Systems [CERI SN - IMT Nord Europe]
Ducasse, Stephane [Auteur]

Analyses and Languages Constructs for Object-Oriented Application Evolution [RMOD]
Fabresse, Luc [Auteur]
Centre for Digital Systems [CERI SN - IMT Nord Europe]
Denker, Marcus [Auteur]

Analyses and Languages Constructs for Object-Oriented Application Evolution [RMOD]

Date de publication :

2013-10-29

Mot(s)-clé(s) en anglais :

Object-OrientedProgramming and Design
Proxy
Interception
Smalltalk

Discipline(s) HAL :

Informatique [cs]/Langage de programmation [cs.PL]

Résumé en anglais : [en]

A proxy object is a surrogate or placeholder that controls access to another target object. Proxy objects are a widely used solution for different scenarios such as remote method invocation, future objects, behavioral ...
Lire la suite >A proxy object is a surrogate or placeholder that controls access to another target object. Proxy objects are a widely used solution for different scenarios such as remote method invocation, future objects, behavioral reflection, object databases, inter-languages communications and bindings, access control, lazy or parallel evaluation, security, among others. Most proxy implementations support proxies for regular objects but are unable to create proxies for objects with an important role in the runtime infrastructure such as classes or methods. Proxies can be complex to install, they can have a significant overhead, they can be limited to certain kind of classes, etc. Moreover, proxy implementations are often not stratified and they do not have a clear separation between proxies (the objects intercepting messages) and handlers (the objects handling interceptions). In this paper, we present Ghost: a uniform and general-purpose proxy implementation for the Pharo programming language. Ghost provides low memory consuming proxies for regular objects as well as for classes and methods. When a proxy takes the place of a class, it intercepts both the messages received by the class and the lookup of methods for messages received by its instances. Similarly, if a proxy takes the place of a method, then the method execution is intercepted too.Lire moins >

Langue :

Anglais

Commentaire :

in submission

Collections :

Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL

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