Toposhape/Part: element methods in ComplexGeoData and TopoShape

src/Mod/Part/App/TopoShape.cpp

@@ -4084,6 +4084,7 @@ TopoShape &TopoShape::makeRefine(const TopoShape &shape, const char *op, RefineF
     return *this;
 }
 
+// TODO: Does the toponaming branch version of this method need to be here?
 bool TopoShape::findPlane(gp_Pln &pln, double tol) const {
     if(_Shape.IsNull())
         return false;

src/Mod/Part/App/TopoShapeExpansion.cpp

@@ -5003,4 +5003,25 @@ bool TopoShape::isSame(const Data::ComplexGeoData &_other) const
         && _Shape.IsEqual(other._Shape);
 }
 
+void TopoShape::cacheRelatedElements(const Data::MappedName &name,
+                                     bool sameType,
+                                     const QVector<Data::MappedElement> & names) const
+{
+    INIT_SHAPE_CACHE();
+    _Cache->insertRelation(ShapeRelationKey(name,sameType), names);
+}
+
+bool TopoShape::getRelatedElementsCached(const Data::MappedName &name,
+                                         bool sameType,
+                                         QVector<Data::MappedElement> &names) const
+{
+    if(!_Cache)
+        return false;
+    auto it = _Cache->relations.find(ShapeRelationKey(name,sameType));
+    if(it == _Cache->relations.end())
+        return false;
+    names = it->second;
+    return true;
+}
+
 }  // namespace Part