How to get name of input file in Xtext

I am implementing a language where name of the file needs to be the same as name of the class. How can I get name of the file in validator? If I can't do that, is there any other way to do what I want?

Solution

you can as any EObject for its eResource() and that for its getURI(). That will allow you to get the file name (lastSegment). you may want to trimFileExtension() first.

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