internal TcAdsSymbolInfo GetSubSymbol(TcAdsSymbolInfo parent, int subIndex, bool dereference)
{
if (parent == null)
{
throw new ArgumentNullException("parent");
}
TcAdsSymbolInfo info = null;
try
{
ITcAdsDataType dataType = parent.DataType;
ITcAdsDataType type2 = null;
if (dataType != null)
{
type2 = (ITcAdsDataType)dataType.ResolveType(DataTypeResolveStrategy.AliasReference);
}
if (type2 != null)
{
int count = parent.SubSymbols.Count;
if (((type2 != null) && (type2.SubItems.Count > 0)) && (subIndex < type2.SubItems.Count))
{
info = this._subSymbolFactory.CreateSubSymbol(parent, subIndex);
}
else if ((type2 != null) && ((type2.Dimensions.Count > 0) || DataTypeStringParser.IsArray(type2.Name)))
{
info = this._subSymbolFactory.CreateArrayElement(parent, (TcAdsDataType)type2, subIndex);
}
else if ((type2 != null) && type2.IsReference)
{
this.SetPlatformPointerSize(type2.Size);
}
else if ((subIndex == 0) && type2.IsPointer)
{
this.SetPlatformPointerSize(type2.Size);
if (dereference)
{
string str;
DataTypeStringParser.TryParsePointer(type2.Name, out str);
TcAdsDataType referencedType = (TcAdsDataType)this.ResolveDataType(str);
if ((referencedType != null) & dereference)
{
bool flag = (referencedType.Flags & AdsDataTypeFlags.AnySizeArray) == AdsDataTypeFlags.AnySizeArray;
if ((referencedType.Size > 0) | flag)
{
info = this._subSymbolFactory.CreatePointerSymbol(parent, referencedType);
}
}
}
}
}
}
catch (Exception exception)
{
Module.Trace.TraceError($"ParentSymbol: {parent.Name}", exception);
throw;
}
return(info);
}
internal ITcAdsDataType ResolveType(DataTypeResolveStrategy type)
{
ITcAdsDataType dataType = this.DataType;
return((dataType == null) ? null : ((ITcAdsDataType)dataType.ResolveType(type)));
}
