Using Smalltalk as a Reflective Executable Meta-Language

Ducasse, Stéphane; Gîrba, Tudor (2006). Using Smalltalk as a Reflective Executable Meta-Language. In: Nierstrasz, Oscar; Whittle, Jon; Harel, David; Reggio, Gianna (eds.) Model Driven Engineering Languages and Systems. 9th International Conference, MoDELS 2006. Lecture Notes in Computer Science: Vol. 4199 (pp. 604-618). Heidelberg: Springer Verlag 10.1007/11880240_42

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Object-oriented meta-languages such as MOF or EMOF are often used to specify domain specific languages. However, these meta-languages lack the ability to describe behavior or operational semantics. Several approaches used a subset of Java mixed with OCL as executable meta-languages. In this paper, we report our experience of using Smalltalk as an executable and integrated meta-language. We validated this approach in incrementally building over the last decade, Moose, a meta-described reengineering environment. The reflective capabilities of Smalltalk support a uniform way of letting the base developer focus on his tasks while at the same time allowing him to meta-describe his domain model. The advantage of our this approach is that the developer uses the same tools and environment

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