IFC4: Serialization of twodimensional arrays

[hlg]

IFC STEP serialization of twodimensional arrays does not work as expected.

For example, consider the following original content:

#1=IFCCARTESIANPOINTLIST3D((
  (19.3515701293945,48.59228515625,-314.984222412109),
  (25.8476333618164,48.59228515625,-314.984222412109),
  (25.8476333618164,50.13427734375,-314.984222412109),
  ...
));
#2=IFCTRIANGULATEDFACESET(#1,$,$,((1,2,3),...);

The non-streaming serializer omits the arrays:

#1= IFCCARTESIANPOINTLIST3D(());
#2= IFCTRIANGULATEDFACESET(#1,(),.T.,(),());

The streaming serializer does not resolve the virtual objects and includes some internal type information:

#1= IFCCARTESIANPOINTLIST3D((
  ListOfIfcLengthMeasure List: [org.bimserver.shared.HashMapWrappedVirtualObject@37cdb1dd, org.bimserver.shared.HashMapWrappedVirtualObject@3012c72e, org.bimserver.shared.HashMapWrappedVirtualObject@7cb8a219],
  ListOfIfcLengthMeasure List: [org.bimserver.shared.HashMapWrappedVirtualObject@dca8d1b3, org.bimserver.shared.HashMapWrappedVirtualObject@3012c72e, org.bimserver.shared.HashMapWrappedVirtualObject@7cb8a219],
  ListOfIfcLengthMeasure List: [org.bimserver.shared.HashMapWrappedVirtualObject@dca8d1b3, org.bimserver.shared.HashMapWrappedVirtualObject@59aaeac1, org.bimserver.shared.HashMapWrappedVirtualObject@7cb8a219],
  ...
));
#2= IFCTRIANGULATEDFACESET(#1,(),$,(ListOfELong List: [1, 2, 3], ...);

The sample is from #7 (related issue, but regarding deserialization), here I used the file that does not cause deserialization issues: IfcTriangulatedFaceSet_IfcShapeRep.ifc.txt. Obviously, it is not possible to test serialization for the case where deserialization is broken.