Eelco Visser


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TU Delft Programming Languages Group


I lead the Software Language Design and Engineering research program. Our mission is to enable software engineers to effectively design, implement, and apply domain-specific languages. We are doing research in three tracks:

  • Language engineering: investigate the automatic derivation of efficient, scalable, incremental compilers and usable IDEs from high-level, declarative language definitions

  • Semantics engineering: investigate the automatic verification of the consistency of language definitions in order to check properties such as type soundness and semantics preservation

  • Language design: investigate the systematic design of domain-specific software languages with an optimal tradeoff between expressivity, completeness, portability, coverage, and maintainability.

Research overview

Recommended Publications


Static semantics

Dynamic semantics

Integrated development environments

Build and deployment

Transformation and analysis

Syntax definition and parsing

Language composition

Programming with relations

Abstractions for web programming

More publications | biggest hits | TU Delft PL talks



Project overview

Current Activities

  • Review Committee Chair: OOPSLA 2019
  • Associate Editor: PACMPL
  • SPLASH Steering Committee Chair

All my professional activities | Presentations


MetaBorg provides generic technology for allowing a host language (collective) to incorporate and assimilate external domains (cultures) in order to strengthen itself. The ease of implementing embeddings makes resistance futile.

From Concrete syntax for objects