// Sets the "key" arg as the key on "context". "parentContext" is the context
// one level above "context". Verification is done to make sure that the
// "parentContext" is a valid Dictionary. An error is thrown if it is not.
private void SetKeyOnContext(
object key,
string attributeName,
ReaderContextStackData context,
ReaderContextStackData parentContext)
{
try
{
// make sure parent is a dictionary
GetDictionaryFromContext(parentContext, true /*toInsert*/);
}
catch (XamlParseException e)
{
// rethrow with a better error message
if (parentContext.CheckFlag(ReaderFlags.CollectionHolder))
{
BamlCollectionHolder holder = (BamlCollectionHolder)parentContext.ObjectData;
object element = context.ObjectData;
if (element != null && element == holder.Dictionary)
{
ThrowExceptionWithLine(SR.Get(SRID.ParserKeyOnExplicitDictionary, attributeName,
element.GetType().ToString(), holder.PropertyDefinition.Name), e);
}
}
ThrowExceptionWithLine(SR.Get(SRID.ParserNoMatchingIDictionary, attributeName), e);
}
// set key on context
context.Key = key;
}
private ArrayExtension GetArrayExtensionFromContext(ReaderContextStackData context)
{
ArrayExtension result = null;
if (context != null)
{
result = context.ObjectData as ArrayExtension;
if (context.CheckFlag(ReaderFlags.ArrayExt))
{
result = (ArrayExtension)context.ObjectData;
}
else if (context.ContextType == ReaderFlags.PropertyArray)
{
BamlCollectionHolder holder = GetCollectionHolderFromContext(context, true /*toInsert*/);
result = holder.ArrayExt;
}
}
return result;
}
private IList GetListFromContext(ReaderContextStackData context)
{
IList result = null;
if (context != null)
{
if (context.CheckFlag(ReaderFlags.IList))
{
result = (IList)GetObjectDataFromContext(context);
}
else if (context.ContextType == ReaderFlags.PropertyIList)
{
BamlCollectionHolder holder = GetCollectionHolderFromContext(context, true /*toInsert*/);
result = holder.List;
}
}
return result;
}
private IAddChild GetIAddChildFromContext(ReaderContextStackData context)
{
IAddChild result = null;
if (context != null)
{
if (context.CheckFlag(ReaderFlags.IAddChild))
{
result = BamlRecordManager.AsIAddChild(context.ObjectData);
}
else if (context.ContextType == ReaderFlags.PropertyIAddChild)
{
BamlCollectionHolder holder = GetCollectionHolderFromContext(context, false /*toInsert*/);
result = BamlRecordManager.AsIAddChild(holder.Collection);
}
}
return result;
}
protected IDictionary GetDictionaryFromContext(ReaderContextStackData context, bool toInsert)
{
IDictionary result = null;
if (context != null)
{
if (context.CheckFlag(ReaderFlags.IDictionary))
{
result = (IDictionary)GetObjectDataFromContext(context);
}
else if (context.ContextType == ReaderFlags.PropertyIDictionary)
{
BamlCollectionHolder holder = GetCollectionHolderFromContext(context, toInsert);
result = holder.Dictionary;
}
}
return result;
}
