Reflective facilities in Smalltalk-80

Foote, Brian; Johnson, Ralph E.

doi:10.1145/74877.74911

Cited by 60 publications

(15 citation statements)

References 21 publications

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“…As Smalltalk supports reflection -which means that the programmer can dynamically query and change the program's structure, implementation, and state [11] not necessarily all the relevant code is available at compile-time. Two common contexts where reflective features are used are code generation or data binding between the model and the GUI.…”

Section: Not Considered Code Constructsmentioning

confidence: 99%

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Refactoring support for Smalltalk using static type inference

Unterholzner¹

2012

Proceedings of the International Workshop on Smalltalk Technologies

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Refactoring is a crucial activity in agile software development. As a consequence, automated tools are expected to support refactoring, both for reducing the developer's effort as well as for avoiding errors due to manual changes. In this context, the chosen programming language has a major impact on the level of support that an automated refactoring tool can offer. One important aspect of a programming language concerning the automation of refactoring is the type system. While a static type system, present in languages such as Java, provides information about dependencies in the program, the dynamic type system of the Smalltalk programming language offers little information that can be used by automated refactoring tools.This paper focuses on the challenges in the context of refactoring raised by the dynamic type system of Smalltalk. It highlights the problems caused by the absence of static type information and proposes the use of static code analysis for performing type inference to gather information about the dependencies in the program's source code. It explains the mechanism of the static code analysis using sample code and presents a prototype of an enhanced refactoring tool, which uses the structural information extracted through static code analysis. Empirical samples build the base for evaluating the effectiveness of the approach.

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Section: Not Considered Code Constructsmentioning

confidence: 99%

“…A reflective programming language offers the possibility to dynamically query and change the program's structure, implementation, and state [11].…”

Section: Use Of Reflectionmentioning

confidence: 99%

Refactoring support for Smalltalk using static type inference

Unterholzner¹

2012

Proceedings of the International Workshop on Smalltalk Technologies

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“…However, since a fundamental feature of Smalltalk is that just about everything in the language is an implementation feature, explicit interfaces can be added to Smalltalk using Smalltalk and its reflective capabilities itself with relative ease [Foot89]. Hence adding interfaces to Smalltalk does not require to modify the language grammar.…”

Section: The Opportunity: a New Ontology Of Inter Faces For Smalltalkmentioning

confidence: 99%

Adding Dynamic Interfaces to Smalltalk.

Sadeh¹,

Ducasse²

2002

JOT

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“…While rich structures and meta-level architectures for reflection have previously been defined [ 18,11,6,261, issues in the explicit representation of gross architectural abstractions appear to be under emphasized because the problems being investigated are different. In this paper, we discussed one way to reify system architectural units and subunits, and showed how to use the reified representations to optimize instrumentation.…”

Section: Related Researchmentioning

confidence: 99%

Architecture-oriented visualization

1996

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Tracking the changing dynamics of object-oriented frameworks [5], design patterns[7], architectural styles [8], and subsystems during the development and reuse cycle can aid producing complex systems. Unfortunately, current object-oriented programming tools are relatively oblivious to the rich architectural abstractions in a system. This paper shows that architecture-oriented visualization, the graphical presentation of system statics and dynamics in terms of its architectural abstractions, is highly beneficial in designing complex systems. In addition, the paper presents architecture-aware instrumentation, a new technique for building efficient on-line instrumentation to support architectural queries. We demonstrate the effectiveness and performance of the scheme with case studies in the design of the Choices object-oriented operating system.

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Reflective facilities in Smalltalk-80

Cited by 60 publications

References 21 publications

Refactoring support for Smalltalk using static type inference

Refactoring support for Smalltalk using static type inference

Adding Dynamic Interfaces to Smalltalk.

Architecture-oriented visualization

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