Getting modified GWT compiler artifact

[Marko Vuksanovic]

Is there a way to easily modify an artifact within a linker? To be more specific, I'd like to modify JS in CompilationResult arifacts. I can easily get to JS of a CompilationResult artifact but I cannot see a way to easily modify it. I guess artifacts cannot be modified, but is there maybe a method that would allow one to make a copy of artifact which then could be modified? A linker could then put a modified copy into artifactSet. Or is there some other solution to this problem?

Marko