Towards Language-Parametric Semantic Editor Services

Daniel Pelsmaeker

Date: Tue, June 18, 2019
Time: 15:45
Room: Snijderszaal LB.01.010 (building 36)

Editor services assist programmers to more effectively write and comprehend code. Implementing editor services correctly is not trivial. This presentation focuses on our paper, which discusses the specification of semantic editor services, those that use the semantic model of a program. The specification of refactorings is a common subject of study, but many other semantic editor services have received little attention. We propose a language-parametric approach to the definition of semantic editor services, using a declarative specification of the static semantics of the programming language, and constraint solving. Editor services are specified as constraint problems, and language specifications are used to ensure correctness. We describe our approach for the following semantic editor services: reference resolution, find usages, goto subclasses, code completion, and the extract definition refactoring. We do this in the context of Statix, a constraint language for the specification of type systems. We investigate the specification of editor services in terms of Statix constraints, and the requirements these impose on a suitable solver.

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