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Fixed bug in method GetReferncedObject that caused a crash in case if the reference is not valid.

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srn 2007-06-14 07:31:16 +00:00
parent 62efaaafaa
commit b48fe17ccb
1 changed files with 20 additions and 6 deletions
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24
src/GEOM/GEOM_Object.cxx
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@ -95,15 +95,27 @@ Handle(GEOM_Object) GEOM_Object::GetObject(TDF_Label& theLabel)
Handle(GEOM_Object) GEOM_Object::GetReferencedObject(TDF_Label& theLabel)
{
Handle(TDF_Reference) aRef;
if (!theLabel.FindAttribute(TDF_Reference::GetID(), aRef)) return NULL;
if (!theLabel.FindAttribute(TDF_Reference::GetID(), aRef)) {
return NULL;
}
if(aRef.IsNull() || aRef->Get().IsNull()) {
return NULL;
}
// Get TreeNode of a referenced function
Handle(TDataStd_TreeNode) aT, aFather;
if (!TDataStd_TreeNode::Find(aRef->Get(), aT)) return NULL;
if (!TDataStd_TreeNode::Find(aRef->Get(), aT)) {
return NULL;
}
// Get TreeNode of Object of the referenced function
aFather = aT->Father();
if (aFather.IsNull()) return NULL;
if (aFather.IsNull()) {
return NULL;
}
// Get label of the referenced object
TDF_Label aLabel = aFather->Label();
@ -392,8 +404,10 @@ Handle(TColStd_HSequenceOfTransient) GEOM_Object::GetAllDependency()
Standard_Integer aLength = aSeq.Length();
if(aLength > 0) {
anArray = new TColStd_HSequenceOfTransient;
for(Standard_Integer j =1; j<=aLength; j++)
anArray->Append(GetReferencedObject(aSeq(j)));
for(Standard_Integer j =1; j<=aLength; j++) {
Handle(GEOM_Object) aRefObj = GetReferencedObject(aSeq(j));
if(!aRefObj.IsNull()) anArray->Append(aRefObj);
}
}
return anArray;