Traversing all nodes of every model

Mehmet Can Boysan

Created December 09, 2015 08:32

Hello again,

I would like to ask that is there a way to traverse all the nodes of every model that are present in the project?

I know I can access nodes of the modules with jetbrains.mps.lang.smodel by doing:

list<node<>> nodes = model/name_of_model/.roots();

But I would like to know if I am able to loop through all the models without providing their names explicitly.

Thanks.

3 comments

fxlex

Created December 12, 2015 19:46

list<SModel> models = new arraylist<SModel>; 
models.addAll(new ProjectScope(ProjectHelper.getProject(editorContext.getRepository())).getModels()); 
models.forEach({~it => 
  nlist<> rootNodes = new arraylist<SNode>; 
  rootNodes.addAll(it.getRootNodes()); 
});

I don't know where you execute your code but you need a reference to Project. In my example you can access it with an editorContext. Unfortunately this method also contains nodes from stubs, languages and other nodes that you may want to filter. The next approach is maybe a bit better. You can try it in the console:

{
list<SModule> modules = new arraylist<SModule>; 
modules.addAll(new ProjectScope(#project).getModules()); 
modules.forEach({~module => 
  if (module instanceof Solution) { 
    list<SModel> models = new arraylist<SModel>; 
    models.addAll(module.getModels()); 
    models.forEach({~model => 
      nlist<> rootNodes = new arraylist<SNode>; 
      rootNodes.addAll(model.getRootNodes()); 
      #print rootNodes; 
    }); 
  } 
});
}

Mehmet Can Boysan

Created December 14, 2015 07:42

Thank you very much, the second solution was what I was looking for actually.

Noli San Jose

Created December 04, 2020 07:38

Hi! FYI, I just want to say thanks to fxlex. His code helped me in my project also!

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