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0027404: Data Exchange - access violation when reading STEP file

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Added check on the null handle
Test case for issue CR27404
This commit is contained in:
gka 2016-10-27 17:50:18 +03:00 committed by apn
parent ee905e847d
commit a965c45b2d
2 changed files with 25 additions and 8 deletions
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19
src/STEPControl/STEPControl_Reader.cxx
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@ -271,14 +271,17 @@ Standard_Integer STEPControl_Reader::NbRootsForTransfer()
Handle(StepShape_ShapeRepresentation)::DownCast(RR->Rep1()); Handle(StepShape_ShapeRepresentation)::DownCast(RR->Rep1());
if(SR==SR2) if(SR==SR2)
SR2 = Handle(StepShape_ShapeRepresentation)::DownCast(RR->Rep2()); SR2 = Handle(StepShape_ShapeRepresentation)::DownCast(RR->Rep2());
Interface_EntityIterator subs2 = graph.Sharings(SR2); if(!SR2.IsNull())
for(subs2.Start(); subs2.More(); subs2.Next()) { {
Handle(StepShape_ShapeDefinitionRepresentation) SDR2 = Interface_EntityIterator subs2 = graph.Sharings(SR2);
Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(subs2.Value()); for(subs2.Start(); subs2.More(); subs2.Next()) {
if(!SDR2.IsNull()) IsRoot = Standard_False; Handle(StepShape_ShapeDefinitionRepresentation) SDR2 =
//else { Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(subs2.Value());
// if(SR==SRR->Rep2()) IsRoot = Standard_False; if(!SDR2.IsNull()) IsRoot = Standard_False;
//} //else {
// if(SR==SRR->Rep2()) IsRoot = Standard_False;
//}
}
} }
} }
} }

14
tests/bugs/step/bug27404 Executable file
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@ -0,0 +1,14 @@
puts "============"
puts "OCC27404"
puts "============"
puts ""
#######################################################################
# Data Exchange - access violation when reading STEP file
#######################################################################
param read.step.product.mode 0
newmodel
XNewDoc D
ReadStep D [locate_data_file bug27404_pmi.stp]