private EnvDTE.CodeElement GetAttributeArgumentForCodeModelEvent(CodeModelEvent codeModelEvent, EnvDTE.CodeElements parentAttributeArguments, object parentElement)
{
if (parentAttributeArguments == null)
{
return(null);
}
SyntaxNode attributeNode;
int ordinal;
CodeModelService.GetAttributeArgumentParentAndIndex(codeModelEvent.Node, out attributeNode, out ordinal);
if (codeModelEvent.Type == CodeModelEventType.Remove)
{
var parentCodeElement = ComAggregate.TryGetManagedObject <CodeAttribute>(parentElement);
if (parentCodeElement != null)
{
return((EnvDTE.CodeElement)CodeAttributeArgument.Create(this.State, parentCodeElement, ordinal));
}
}
else
{
return(parentAttributeArguments.Item(ordinal + 1)); // Needs to be 1-based to call back into code model
}
return(null);
}
protected override bool TryGetItemByIndex(int index, out EnvDTE.CodeElement element)
{
var node = LookupNode();
var attributeArgumentNodes = CodeModelService.GetAttributeArgumentNodes(node);
if (index >= 0 && index < attributeArgumentNodes.Count())
{
element = (EnvDTE.CodeElement)CodeAttributeArgument.Create(this.State, this.ParentAttribute, index);
return(true);
}
element = null;
return(false);
}
protected override bool TryGetItemByName(string name, out EnvDTE.CodeElement element)
{
var node = LookupNode();
var currentIndex = 0;
foreach (var child in CodeModelService.GetAttributeArgumentNodes(node))
{
var childName = CodeModelService.GetName(child);
if (childName == name)
{
element = (EnvDTE.CodeElement)CodeAttributeArgument.Create(this.State, this.ParentAttribute, currentIndex);
return(true);
}
currentIndex++;
}
element = null;
return(false);
}
