public override IEnumerable <TreeNodeViewModel> VisitNodeAndBuildChildren(GraphNodeViewModel graph, bool expandChildren, CancellationToken cancellation)
{
foreach (GraphMemberType graphMemberType in GetGraphMemberTypesInOrder())
{
cancellation.ThrowIfCancellationRequested();
GraphMemberCategoryNodeViewModel graphMemberCategory = CreateCategory(graph, graphMemberType, expandChildren);
if (graphMemberCategory != null)
{
yield return(graphMemberCategory);
}
}
}
public override IEnumerable <TreeNodeViewModel> VisitNode(GraphNodeViewModel graph)
{
foreach (GraphMemberType graphMemberType in GetGraphMemberTypesInOrder())
{
Cancellation.ThrowIfCancellationRequested();
GraphMemberCategoryNodeViewModel graphMemberCategory = CreateCategory(graph, graphMemberType);
if (graphMemberCategory != null)
{
yield return(graphMemberCategory);
}
}
}
protected virtual IEnumerable <TreeNodeViewModel> CreateGraphCategoryChildren <TSymbolInfo>(GraphMemberCategoryNodeViewModel graphMemberCategory,
bool isExpanded, Func <TSymbolInfo, TreeNodeViewModel> constructor,
CancellationToken cancellation)
where TSymbolInfo : SymbolItem
{
IEnumerable <SymbolItem> categoryTreeNodes = graphMemberCategory.CheckIfNull(nameof(graphMemberCategory))
.GetCategoryGraphNodeSymbols();
if (categoryTreeNodes.IsNullOrEmpty())
{
return(Enumerable.Empty <TreeNodeViewModel>());
}
cancellation.ThrowIfCancellationRequested();
var graphSemanticModel = graphMemberCategory.GraphSemanticModel;
var graphMemberViewModels = from graphMemberInfo in categoryTreeNodes.OfType <TSymbolInfo>()
where graphMemberInfo.SymbolBase.ContainingType == graphSemanticModel.Symbol ||
graphMemberInfo.SymbolBase.ContainingType.OriginalDefinition == graphSemanticModel.Symbol.OriginalDefinition
orderby graphMemberInfo.SymbolBase.Name
select constructor(graphMemberInfo);
return(graphMemberViewModels);
}