if (structs.length == 0) return;  new StructureIncludeFile(structs, sg, dir);
doit(structs, sg, ".");
    public static void doit(SIRStructure[] structs, StreamGraph sg, String dir)     {	if (structs.length == 0) 	    return;		new StructureIncludeFile(structs, sg, dir);    }