Fixed null shape repr tpaviot#604

Author: tpaviot

src/SWIG_files/common/CommonIncludes.i

@@ -42,6 +42,9 @@ def _dumps_object(klass):
     repr_string = "class<'" + klass_name + "'"
     # for TopoDS_Shape, we also look for the base type
  if klass_name == "TopoDS_Shape":
+ if klass.IsNull():
+            repr_string += " : Null>"
+ return repr_string
         st = klass.ShapeType()
         types = {OCC.Core.TopAbs.TopAbs_VERTEX: "Vertex",
  OCC.Core.TopAbs.TopAbs_SOLID: "Solid",
@@ -57,6 +60,8 @@ def _dumps_object(klass):
  if hasattr(klass, "HashCode"):
         klass_id = hash(klass)
         repr_string += "; id:%s" % klass_id
+    if klass.IsNull():
+        repr_string += "; Null"
     repr_string += ">"
     return repr_string
 %}

test/core_wrapper_features_unittest.py

@@ -35,7 +35,7 @@
 from OCC.Core.Interface import Interface_Static_SetCVal, Interface_Static_CVal
 from OCC.Core.GCE2d import GCE2d_MakeSegment
 from OCC.Core.ShapeFix import ShapeFix_Solid, ShapeFix_Wire
-from OCC.Core.TopoDS import TopoDS_Compound, TopoDS_Builder, TopoDS_Edge
+from OCC.Core.TopoDS import TopoDS_Compound, TopoDS_Builder, TopoDS_Edge, TopoDS_Vertex, TopoDS_Shape
 from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeCylinder
 from OCC.Core.TColStd import TColStd_Array1OfReal, TColStd_Array1OfInteger
 from OCC.Core.TColgp import TColgp_Array1OfPnt
@@ -593,6 +593,12 @@ def test_array_iterator(self):
  for pnt in list_of_points:
  self.assertTrue(isinstance(pnt, gp_Pnt))
 
+ def test_repr_for_null_topods_shapes(self):
+ # create null vertex and shape
+ v = TopoDS_Vertex()
+ s = TopoDS_Shape()
+ self.assertTrue('Null' in v.__repr__())
+ self.assertTrue('Null' in s.__repr__())
 
 def suite():
  test_suite = unittest.TestSuite()