Scope states: Guarding safety of name resolution in parallel type checkers

Compilers that can type check compilation units in parallel can make more efficient use of multi-core architectures, which are nowadays widespread. Developing parallel type checker implementations is complicated by the need to handle concurrency and synchronization of parallel compilation units. Dependencies between compilation units are...

From definitional interpreter to symbolic executor

Symbolic execution is a technique for automatic software validation and verification. New symbolic executors regularly appear for both existing and new languages and such symbolic executors are generally manually (re)implemented each time we want to support a new language. We propose to automatically generate symbolic executors from language...

Towards language-parametric semantic editor services based on declarative type system specifications

New programming languages often lack good IDE support, as developing advanced semantic editor services takes additional effort. In previous work we discussed the operational requirements of a constraint solver that leverages the declarative type system specification of a language to provide language-parametric semantic editor services. In...

Towards language-parametric semantic editor services based on declarative type system specifications

Editor services assist programmers to more effectively write and comprehend code. Implementing editor services correctly is not trivial. This paper focuses on 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...

A Constraint Language for Static Semantic Analysis Based on Scope Graphs

In previous work, we introduced scope graphs as a formalism for describing program binding structure and performing name resolution in an AST-independent way. In this paper, we show how to use scope graphs to build static semantic analyzers. We use constraints extracted from the AST to specify facts about binding, typing, and initialization. We...