MODELS 2020

23rd International Conference on Model Driven Engineering Languages and Systems (MODELS 2020)

Tutorial “Domain-Specific Languages with JetBrains MPS” , held virtually on 16th of October, 2020.

• Download and install JetBrains MPS to follow the hands-on part of the tutorial: https://www.jetbrains.com/mps/download/

The list of footnotes:

1. http://dsl-course.org/models/1 redirects to https://blogs.itemis.com/en/the-business-dsl-zurich-insurance
2. http://dsl-course.org/models/2 redirects to https://en.wikipedia.org/wiki/Clojure
3. http://dsl-course.org/models/3 redirects to https://en.wikipedia.org/wiki/Syntax_highlighting#Practical_benefits
4. http://dsl-course.org/models/4 redirects to https://www.tutorialspoint.com/eclipse/eclipse_quick_fix.htm
5. http://dsl-course.org/models/5 redirects to https://www.eclipse.org/Xtext/
6. http://dsl-course.org/models/6 redirects to https://eelcovisser.org/publications/2014/WachsmuthKV14.pdf
7. http://dsl-course.org/models/7 redirects to https://martinfowler.com/bliki/IntentionalSoftware.html
8. http://dsl-course.org/models/8 redirects to https://link.springer.com/chapter/10.1007/978-3-642-36926-1_10
9. http://dsl-course.org/models/9 redirects to https://tomassetti.me/getting-started-with-the-whole-platform-grammars/
10. http://dsl-course.org/models/10 redirects to http://cedalion.sourceforge.net/oopsla11.pdf
11. http://dsl-course.org/models/11 redirects to http://monticore.de
12. http://dsl-course.org/models/12 redirects to https://docs.google.com/presentation/d/1MD-CgzODFWzdpnYXr8bEgysfDmb8PDV6iCAjH5JIvaI/
13. http://dsl-course.org/models/13 redirects to https://astexplorer.net
14. http://dsl-course.org/models/14 redirects to https://ohmlang.github.io/editor/
15. http://dsl-course.org/models/15 redirects to https://medium.com/@mikhail.barash.mikbar/abc-of-jetbrains-mps-33bed30c330b

Hands-on part:

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• Start MPS and create a new project. Important: select “Create Sandbox Solution”.
• Creating a new concept: Right-click on the <language-name> (near to orange “L”) -> New -> Concept.
• Create concept Entity. Important: set instance can be root to true.
• Rebuild the language. Important: remember to rebuild the language after each modification to the language definition.
• Creating a new program in our language: Right-click on the <language-name>.sandbox (near to pink “S”) -> New -> Entity.
• Remove property name, and add INamedConcept after implements.

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• Create concept IntegerField. Important: add INamedConcept after implements.
• Add to children of concept Entity: fields : IntegerField[0..n].

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• Creating an editor for concept Entity: Alt/Option + Enter -> Generate Default (Statement like)
• Creating an editor for concept IntegerField.

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• Playing with style of the editor of concept Entity.

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• Creating concept EntityReference and and editor for it.
• Add to children of concept Entity: parent : EntityReference[0..1].
• Updating the editor of concept Entity to take into account the extends ... part.

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• Creating concept Program to “combine” several Entities in one file. Important: set instance can be root to true. Children: entities : Entity[1..n].
• Creating an editor for concept Program.
• Creating an instance of concept Program: right-click on <language-name>.sandbox (near to pink “S”) -> New -> Program.
• Playing with autocomplete.

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• Playing with the editor for IntegerField.

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• Creating a code generator for concept Entity.

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• Running the code generator.